The Gordon Mallett Archive

This index contains 465 image records from Gordon Mallett’s cachet archive: 463 individual images and two composite reference sheets.

This archive honours the late Gordon Mallett, whose lifelong passion for aviation history, especially Alberta’s pioneering northern airmail flights, enriched Canadian aerophilately. A dedicated CAS member, he compiled the Canadian Aerophilatelist index, chronicled Walter Hale’s Arctic airmail, led the Katherine Stinson commemorations, and generously shared his research with fellow collectors.

Select a thumbnail to open its original scan. Variants and files labelled duplicate are retained. Routes, dates and catalogue references were checked against The Air Mails of Canada and Newfoundland 2 (American Air Mail Society, 2022), with the 1997 edition used where noted. Dates refer to the catalogued flight, service period or commemorative event; qualifications appear in the Notes column.

Route	Flight date	Catalogue number	Cachet	Notes
Hamilton → Toronto	24 August 1928	2837f		CNE Golden Jubilee flight. English cachet.
Kingston → Toronto	24 August 1928	2837c		CNE Golden Jubilee flight. English cachet.
Montreal → Kingston (catalogue attribution)	24 August 1928	2837k		English version. Filed as 2837k; the cachet reads Montreal via Ottawa to Toronto. The Kingston leg cannot be confirmed from the cachet alone.
Montreal → Kingston (catalogue attribution)	24 August 1928	2837k		French version. Filed as 2837k; the cachet names Montreal, Ottawa and Toronto. The Kingston leg cannot be confirmed from the cachet alone.
Ottawa → Toronto	24 August 1928	2837b		CNE Golden Jubilee flight. English cachet.
Quebec → Toronto	24 August 1928	2837		French-language cachet variant for the Canadian National Exhibition Jubilee special flight.
Quebec → Toronto	24 August 1928	2837		English-language cachet variant for the Canadian National Exhibition Jubilee special flight; the filename suffix is an archive language label.
Windsor → Toronto	24 August 1928	2837d		Cachet for the Windsor–Toronto Canadian National Exhibition Jubilee special flight.
Kingston → Quebec	29 August 1928	2839i		Intermediate-points cachet for the Kingston–Quebec flight.
Ottawa → Quebec	29 August 1928	2839k		Intermediate-points cachet for the Ottawa–Quebec flight.
Toronto → Hamilton	29 August 1928	2839d		Cachet for the Toronto–Hamilton Canadian National Exhibition return flight.
Toronto → Kingston	29 August 1928	2839		Cachet for the Toronto–Kingston Canadian National Exhibition return flight.
Toronto → London	29 August 1928	2839e		Toronto–Canadian National Exhibition flight to London.
Toronto → Montreal	29 August 1928	2839b		Cachet for the Toronto–Montreal Canadian National Exhibition return flight.
Toronto → Ottawa	29 August 1928	2839a		Cachet for the Toronto–Ottawa Canadian National Exhibition return flight.
Toronto → Quebec	29 August 1928	2839c		Cachet for the Toronto–Quebec Canadian National Exhibition return flight.
Toronto → Windsor	29 August 1928	2839f		Toronto–Canadian National Exhibition flight to Windsor.
Ottawa → Vancouver	5–8 September 1928	2843		Special transcontinental test-flight cachet; the flight ran from 5 to 8 September.
Montreal → Albany	1 October 1928	2847		Montreal–Albany air mail service cachet.
Calgary → Regina	10–29 December 1928	2853h		Experimental Prairie Provinces air-mail trial service period: 10–29 December 1928. The detached cachet image does not establish an exact flight day.
Calgary → Winnipeg	10–29 December 1928	2853i		Experimental Prairie Provinces air-mail trial service period: 10–29 December 1928. Second-week copy #2; the detached cachet image does not establish an exact flight day.
Calgary → Winnipeg	10–29 December 1928	2853i		Experimental Prairie Provinces air-mail trial service period: 10–29 December 1928. Second-week cachet variant; the detached image does not establish an exact flight day.
Calgary → Winnipeg	10–29 December 1928	2853i		Experimental Prairie Provinces air-mail trial service period: 10–29 December 1928. The detached cachet image does not establish an exact flight day.
Edmonton → Regina	10–29 December 1928	2853m		Cachet for the Edmonton–Regina leg of the Prairie Provinces experimental service, documented for 10–29 December 1928. The exact day is not established by this detached image.
Edmonton → Saskatoon	10–29 December 1928	2853l		Experimental Prairie Provinces mail-service cachet. Service period: 10–29 December 1928; the exact day for this image is not established.
Edmonton → Winnipeg	10–29 December 1928	2853n		Second-week-labeled cachet for the Edmonton–Winnipeg leg of the Prairie Provinces experimental service, documented for 10–29 December 1928. The exact day is not established by this detached image.
Edmonton → Winnipeg	10–29 December 1928	2853n		Cachet for the Edmonton–Winnipeg leg of the Prairie Provinces experimental service, documented for 10–29 December 1928. The exact day is not established by this detached image.
Regina → Calgary	10–29 December 1928	2853d		Experimental Prairie Provinces air-mail trial service period: 10–29 December 1928. Duplicate-named cachet image; the exact flight day is not established.
Regina → Calgary	10–29 December 1928	2853d		Experimental Prairie Provinces air-mail trial service period: 10–29 December 1928. The detached cachet image does not establish an exact flight day.
Regina → Edmonton	10–29 December 1928	2853f		Experimental Prairie Provinces air-mail trial service period: 10–29 December 1928. The detached cachet image does not establish an exact flight day.
Regina → Saskatoon	10–29 December 1928	2853e		Experimental Prairie Provinces air-mail trial service period: 10–29 December 1928. Second-week cachet variant; the detached image does not establish an exact flight day.
Regina → Saskatoon	10–29 December 1928	2853e		Experimental Prairie Provinces air-mail trial service period: 10–29 December 1928. The detached cachet image does not establish an exact flight day.
Regina → Winnipeg	10–29 December 1928	2853o		Second-week-labeled cachet for the Regina–Winnipeg leg of the Prairie Provinces experimental service, documented for 10–29 December 1928. The exact day is not established by this detached image.
Regina → Winnipeg	10–29 December 1928	2853o		Third-week-labeled cachet for the Regina–Winnipeg leg of the Prairie Provinces experimental service, documented for 10–29 December 1928. The exact day is not established by this detached image.
Regina → Winnipeg	10–29 December 1928	2853o		Cachet for the Regina–Winnipeg leg of the Prairie Provinces experimental service, documented for 10–29 December 1928. The exact day is not established by this detached image.
Saskatoon → Edmonton	10–29 December 1928	2853g		Experimental Prairie Provinces air-mail trial service period: 10–29 December 1928. The detached cachet image does not establish an exact flight day.
Saskatoon → Regina	10–29 December 1928	2853j		Experimental Prairie Provinces air-mail trial service period: 10–29 December 1928. Second-week cachet variant; the detached image does not establish an exact flight day.
Saskatoon → Regina	10–29 December 1928	2853j		Experimental Prairie Provinces air-mail trial service period: 10–29 December 1928. The detached cachet image does not establish an exact flight day.
Saskatoon → Winnipeg	10–29 December 1928	2853k		Cachet for the Saskatoon–Winnipeg leg of the Prairie Provinces experimental service, documented for 10–29 December 1928. The exact day is not established by this detached image.
Winnipeg → Calgary	10–29 December 1928	2853a		Duplicate image of the Winnipeg–Calgary cachet for the experimental Prairie Provinces service. Service period: 10–29 December 1928; the exact day is not established.
Winnipeg → Calgary	10–29 December 1928	2853a		Winnipeg–Calgary cachet for the experimental Prairie Provinces service. Service period: 10–29 December 1928; the exact day for this image is not established.
Winnipeg → Edmonton	10–29 December 1928	2853c		Filename-labelled second-week cachet for the Winnipeg–Edmonton service. Service period: 10–29 December 1928; the exact day for this image is not established.
Winnipeg → Edmonton	10–29 December 1928	2853c		Experimental Prairie Provinces air-mail trial service period: 10–29 December 1928. The detached cachet image does not establish an exact flight day.
Winnipeg → Regina	10–29 December 1928	2853		Experimental Prairie Provinces mail-service cachet. Service period: 10–29 December 1928; the exact day for this image is not established.
Winnipeg → Regina	10–29 December 1928	2853		Filename-labelled second-week cachet for the experimental Prairie Provinces service. Service period: 10–29 December 1928; the exact day for this image is not established.
Winnipeg → Saskatoon	10–29 December 1928	2853b		Winnipeg–Saskatoon cachet for the experimental Prairie Provinces service. Service period: 10–29 December 1928; the exact day for this image is not established.
Montreal → Saint John	28 January 1929	2909a		Black-labelled image variant of the Montreal–Saint John official air-mail service cachet.
Montreal → Saint John	28 January 1929	2909a		Grey-labelled image variant of the Montreal–Saint John official air-mail service cachet.
Ottawa → Saint John	28 January 1929	2909		Cachet for the Ottawa–Saint John leg of the official air-mail service. No colour variant is specified in the archive filename.
Halifax → Saint John	31 January 1929	2909e		Catalogue-listed Jan. 31 return leg; the catalogue notes a forced landing and February 2 backstamps.
Saint John → Halifax	31 January 1929	2909d		First official air mail flight on the Saint John–Halifax leg.
Saint John → Montreal	31 January 1929	2909b		Magenta-labelled image variant of the Saint John–Montreal official air-mail service cachet.
Saint John → Montreal	31 January 1929	2909b		Purple-labelled image variant of the Saint John–Montreal official air-mail service cachet.
Saint John → Ottawa	31 January 1929	2909c		Cachet for the Saint John–Ottawa leg of the official air-mail service. No colour variant is specified in the archive filename.
Kingston → Montreal	4 June 1929	2933		Kingston Airport dedication special flight; Kingston–Montreal cachet.
Kingston → Toronto	4 June 1929	2933a		Kingston Airport dedication special flight; black cachet.
Montreal → Kingston	4 June 1929	2933b		Kingston Airport dedication special flight.
Toronto → Kingston	4 June 1929	2933c		Kingston Airport dedication special flight; black cachet.
Hamilton → Toronto	6 June 1929	2935		Hamilton Airport dedication special flight; black version as labelled in the archive filename.
Hamilton → Toronto	6 June 1929	2935		Hamilton Airport opening special flight. Blue version.
Toronto → Hamilton	6 June 1929	2935a		Hamilton Airport dedication special flight; Toronto–Hamilton cachet.
Charlottetown → Moncton	1 July 1929	2939c		First Maritime Provinces Air Pageant special flight; Charlottetown–Moncton return leg.
Moncton → Charlottetown	1 July 1929	2939		First Maritime Provinces Air Pageant special flight; Moncton–Charlottetown cachet.
Moncton → Saint John	1 July 1929	2939b		First Maritime Provinces Air Pageant special flight; Moncton–Saint John cachet.
Moncton → Sydney	1 July 1929	2939a		First Maritime Provinces Air Pageant special flight; Moncton–Sydney cachet.
Saint John → Moncton	1 July 1929	2939e		Special flight associated with the First Maritime Provinces Air Pageant.
Sydney → Moncton	1 July 1929	2939d		Special flight associated with the First Maritime Provinces Air Pageant.
Detroit (Dearborn) → Toronto	15 July 1929	2945r		Filed as 2945p; the scan reads Detroit to Toronto, corresponding to catalogue 2945r.
Hamilton → Detroit	15 July 1929	2945f		Regular flight cachet for the Hamilton-Detroit leg of the service inaugurated on 15 July 1929.
Hamilton → London	15 July 1929	2945d		Regular flight cachet for the Hamilton-London leg of the service inaugurated on 15 July 1929.
Hamilton → Toronto	15 July 1929	2945n		Official pictorial cachet for the 15 July 1929 service; the image is the black Hamilton-to-Toronto version.
Hamilton → Windsor	15 July 1929	2945e		Regular flight cachet for the Hamilton-Windsor leg of the service inaugurated on 15 July 1929.
London → Detroit	15 July 1929	2945h		Regular official flight cachet for the London-Detroit leg of the service inaugurated on 15 July 1929.
London → Hamilton	15 July 1929	2945l		Regular official flight cachet for the London-Hamilton leg of the service inaugurated on 15 July 1929.
London → Toronto	15 July 1929	2945m		Official pictorial cachet for the 15 July 1929 service; the image is the London-to-Toronto version.
London → Windsor	15 July 1929	2945g		Regular flight cachet for the London-Windsor leg of the service inaugurated on 15 July 1929.
Toronto → Buffalo	15 July 1929	2943		Official flight cachet for the Toronto-Buffalo service.
Toronto → Detroit	15 July 1929	2945c		Official flight cachet attributed to the Toronto-Detroit leg of the service inaugurated on 15 July 1929.
Toronto → Hamilton	15 July 1929	2945		Official flight cachet for the Toronto-Hamilton leg of the Toronto-to-Detroit service inaugurated on 15 July 1929.
Toronto → London	15 July 1929	2945a		Official flight cachet for the Toronto-London leg of the service inaugurated on 15 July 1929.
Toronto → Windsor	15 July 1929	2945b		Official flight cachet for the Toronto-Windsor leg of the service inaugurated on 15 July 1929.
Windsor → Hamilton	15 July 1929	2945j		Official pictorial cachet for the 15 July 1929 service; the image is the black Windsor-to-Hamilton version.
Windsor → Toronto	15 July 1929	2945k		Official pictorial cachet for the 15 July 1929 service; the image is the black Windsor-to-Toronto version.
Moncton → Montreal	9 December 1929	2963i		Cachet for the Moncton–Montreal segment of the Montreal–Quebec–Moncton–Saint John Experimental Service.
Moncton → Quebec	9 December 1929	2963h		Cachet for the Moncton–Quebec segment of the Montreal–Quebec–Moncton–Saint John Experimental Service.
Moncton → Saint John	9 December 1929	2963k		Cachet for the Moncton–Saint John segment of the Montreal–Quebec–Moncton–Saint John Experimental Service.
Montreal → Moncton	9 December 1929	2963a		English-language cachet for the Montreal-to-Moncton segment of the experimental service.
Montreal → Moncton	9 December 1929	2963a		French-language cachet attributed to the Montreal-to-Moncton segment of the experimental service.
Montreal → Quebec	9 December 1929	2963		English-language cachet for the Montreal-to-Quebec segment of the experimental service.
Montreal → Quebec	9 December 1929	2963		French-language cachet for the Montreal-to-Quebec segment of the experimental service.
Montreal → Saint John	9 December 1929	2963b		English-language cachet for the Montreal-to-Saint John service in the experimental-service series.
Montreal → Saint John	9 December 1929	2963b		French-language cachet for the Montreal-to-Saint John service in the experimental-service series.
Quebec → Moncton	9 December 1929	2963c		English-language image attributed to the Quebec-to-Moncton segment of the experimental service.
Quebec → Moncton	9 December 1929	2963c		French-language image attributed to the Quebec-to-Moncton segment of the experimental service.
Quebec → Montreal	9 December 1929	2963j		English cachet for the Quebec–Montreal segment of the Montreal–Quebec–Moncton–Saint John Experimental Service.
Quebec → Saint John	9 December 1929	2963d		English cachet for the Quebec–Saint John segment of the Montreal–Quebec–Moncton–Saint John Experimental Service.
Quebec → Saint John	9 December 1929	2963d		French cachet for the Quebec–Saint John segment of the Montreal–Quebec–Moncton–Saint John Experimental Service.
Saint John → Moncton	9 December 1929	2963e		Cachet for the Saint John–Moncton segment of the Montreal–Quebec–Moncton–Saint John Experimental Service.
Saint John → Montreal	9 December 1929	2963g		Cachet for the Saint John–Montreal segment of the Montreal–Quebec–Moncton–Saint John Experimental Service.
Saint John → Quebec	9 December 1929	2963f		Cachet for the Saint John–Quebec segment of the Montreal–Quebec–Moncton–Saint John Experimental Service.
Fort McMurray → Aklavik	10 December 1929	2967l		Cachet for the Fort McMurray–Aklavik item in the First Regular Official Service to the Northwest Territory. The catalogue states that the listed covers were canceled at Edmonton on November 26 and flown from Fort McMurray on December 10.
Fort McMurray → Arctic Red River	10 December 1929	2967j		First Regular Official Flight cachet from the Fort McMurray service to the Northwest Territory.
Fort McMurray → Fort Chipewyan	10 December 1929	2967		Cachet for the Fort McMurray–Fort Chipewyan item in the First Regular Official Service to the Northwest Territory. The catalogue states that the listed covers were canceled at Edmonton on November 26 and flown from Fort McMurray on December 10.
Fort McMurray → Fort Fitzgerald	10 December 1929	2967a		Cachet for the Fort McMurray–Fort Fitzgerald item in the First Regular Official Service to the Northwest Territory. The catalogue states that the listed covers were canceled at Edmonton on November 26 and flown from Fort McMurray on December 10.
Fort McMurray → Fort Good Hope	10 December 1929	2967i		First Regular Official Flight cachet from the Fort McMurray service to the Northwest Territory.
Fort McMurray → Fort McPherson	10 December 1929	2967k		First Regular Official Flight cachet from the Fort McMurray service to the Northwest Territory.
Fort McMurray → Fort Norman	10 December 1929	2967h		First Regular Official Flight cachet from the Fort McMurray service to the Northwest Territory.
Fort McMurray → Fort Providence	10 December 1929	2967e		First Regular Official Flight cachet from the Fort McMurray service to the Northwest Territory.
Fort McMurray → Fort Resolution	10 December 1929	2967c		First Regular Official Flight cachet from the Fort McMurray service to the Northwest Territory.
Fort McMurray → Fort Simpson	10 December 1929	2967f		First Regular Official Flight cachet from the Fort McMurray service to the Northwest Territory.
Fort McMurray → Fort Smith	10 December 1929	2967b		Cachet for the Fort McMurray–Fort Smith item in the First Regular Official Service to the Northwest Territory. The catalogue states that the listed covers were canceled at Edmonton on November 26 and flown from Fort McMurray on December 10.
Fort McMurray → Hay River	10 December 1929	2967d		First Regular Official Flight cachet from the Fort McMurray service to the Northwest Territory.
Fort McMurray → Wrigley	10 December 1929	2967g		First Regular Official Flight cachet from the Fort McMurray service to the Northwest Territory.
Fort Fitzgerald → Fort McMurray	13 December 1929	2967n		Catalogue-listed return-leg cachet; the catalogue gives 13 December as the flight date and 20 December as the Fort McMurray backstamp date.
Fort Smith → Fort McMurray	13 December 1929	2967o		Catalogue-listed return-leg cachet; the catalogue gives 13 December as the flight date and 20 December as the Fort McMurray backstamp date.
Fort Resolution → Fort McMurray	15 December 1929	2967p		Catalogue-listed return-leg cachet; flown on 15 December, with a Fort McMurray backstamp dated 20 December.
Hay River → Fort McMurray	17 December 1929	2967q		Catalogue-listed return-leg cachet; flown on 17 December, with a Fort McMurray backstamp dated 20 December.
Wrigley → Fort McMurray	22 December 1929	2967t		Return-direction cachet listing for the Fort McMurray–Aklavik First Official Service to the Northwest Territory.
Oskelaneo → Chibougamau	24 December 1929	2969		Official-cachet listing for the Oskelaneo–Chibougamau service.
Aklavik → Fort McMurray	30 December 1929	2967y		Return-direction cachet listing for the Fort McMurray–Aklavik First Official Service to the Northwest Territory.
Arctic Red River → Fort McMurray	30 December 1929	2967w		Return-direction cachet listing for the Fort McMurray–Aklavik First Official Service to the Northwest Territory.
Fort McPherson → Fort McMurray	30 December 1929	2967x		Return-direction cachet listing for the Fort McMurray–Aklavik First Official Service to the Northwest Territory.
Chibougamau → Oskelaneo	31 December 1929	2969a		English cachet variant for the return-direction service.
Chibougamau → Oskelaneo	31 December 1929	2969a		French cachet variant for the return-direction service.
Calgary → Medicine Hat	3 March 1930	3011s		Official cachet for an inaugural flight of the Regular Prairie Service.
Calgary → Moose Jaw	3 March 1930	3011t		Inaugural Regular Prairie Air Mail Service cachet for the catalogue-listed Calgary–Moose Jaw sector.
Calgary → Regina	3 March 1930	3011u		Inaugural Regular Prairie Air Mail Service cachet for the catalogue-listed Calgary–Regina sector.
Calgary → Winnipeg	3 March 1930	3011v		Inaugural Regular Prairie Air Mail Service cachet for the catalogue-listed Calgary–Winnipeg sector.
Edmonton → North Battleford	3 March 1930	3011ab		Cachet for the Edmonton–North Battleford sector of the inaugural regular Prairie Air Mail Service.
Edmonton → Regina	3 March 1930	3011ad		Cachet for the inaugural Prairie Air Mail Service, catalogued for Edmonton to Regina.
Edmonton → Saskatoon	3 March 1930	3011ac		Regular Prairie air-mail service inaugural. Colour version.
Edmonton → Saskatoon	3 March 1930	3011ac		Cachet for the inaugural Prairie Air Mail Service, catalogued for Edmonton to Saskatoon.
Edmonton → Winnipeg	3 March 1930	3011ae		Cachet for the inaugural Prairie Air Mail Service, catalogued for Edmonton to Winnipeg; the catalogue notes a black and magenta version.
Medicine Hat → Calgary	3 March 1930	3011o		Official cachet for an inaugural flight of the Regular Prairie Service.
Medicine Hat → Moose Jaw	3 March 1930	3011w		Inaugural Regular Prairie Air Mail Service cachet for the catalogue-listed Medicine Hat–Moose Jaw sector.
Medicine Hat → Regina	3 March 1930	3011x		Inaugural Regular Prairie Air Mail Service cachet for the catalogue-listed Medicine Hat–Regina sector.
Medicine Hat → Winnipeg	3 March 1930	3011y		Inaugural Regular Prairie Air Mail Service cachet for the catalogue-listed Medicine Hat–Winnipeg sector.
Moose Jaw → Calgary	3 March 1930	3011n		Official cachet for an inaugural flight of the Regular Prairie Service.
Moose Jaw → Medicine Hat	3 March 1930	3011m		Official cachet for an inaugural flight of the Regular Prairie Service.
Moose Jaw → Regina	3 March 1930	3011z		Inaugural Regular Prairie Air Mail Service cachet for the catalogue-listed Moose Jaw–Regina sector.
Moose Jaw → Winnipeg	3 March 1930	3011aa		Cachet for the Moose Jaw–Winnipeg sector of the inaugural regular Prairie Air Mail Service.
North Battleford → Edmonton	3 March 1930	3011r		Official cachet for an inaugural flight of the Regular Prairie Service.
North Battleford → Regina	3 March 1930	3011ag		Cachet for the inaugural Prairie Air Mail Service, catalogued for North Battleford to Regina.
North Battleford → Saskatoon	3 March 1930	3011af		Cachet for the inaugural Prairie Air Mail Service, catalogued for North Battleford to Saskatoon.
North Battleford → Winnipeg	3 March 1930	3011ah		Cachet for the inaugural Prairie Air Mail Service, catalogued for North Battleford to Winnipeg.
Regina → Calgary	3 March 1930	3011i		Official cachet for an inaugural flight of the Regular Prairie Service.
Regina → Edmonton	3 March 1930	3011l		Cachet for the Regina–Edmonton sector of the inaugural regular Prairie Air Mail Service.
Regina → Medicine Hat	3 March 1930	3011h		Official cachet for an inaugural flight of the Regular Prairie Service.
Regina → Moose Jaw	3 March 1930	3011g		Official cachet for an inaugural flight of the Regular Prairie Service.
Regina → North Battleford	3 March 1930	3011k		Official cachet for an inaugural flight of the Regular Prairie Service.
Regina → Saskatoon	3 March 1930	3011j		Official cachet for an inaugural flight of the Regular Prairie Service.
Regina → Winnipeg	3 March 1930	3011ak		Cachet for the inaugural Prairie Air Mail Service, catalogued for Regina to Winnipeg.
Saskatoon → Edmonton	3 March 1930	3011q		Official cachet for an inaugural flight of the Regular Prairie Service.
Saskatoon → North Battleford	3 March 1930	3011p		Official cachet for an inaugural flight of the Regular Prairie Service.
Saskatoon → Regina	3 March 1930	3011ai		Cachet for the inaugural Prairie Air Mail Service, catalogued for Saskatoon to Regina.
Saskatoon → Winnipeg	3 March 1930	3011aj		Cachet for the inaugural Prairie Air Mail Service, catalogued for Saskatoon to Winnipeg.
Winnipeg → Calgary	3 March 1930	3011c		Cachet for the inaugural Prairie Air Mail Service, catalogued for Winnipeg to Calgary.
Winnipeg → Edmonton	3 March 1930	3011f		Official cachet for an inaugural flight of the Regular Prairie Service.
Winnipeg → Medicine Hat	3 March 1930	3011b		Cachet for the inaugural Prairie Air Mail Service, catalogued for Winnipeg to Medicine Hat.
Winnipeg → Moose Jaw	3 March 1930	3011a		Cachet for the Winnipeg–Moose Jaw sector of the inaugural regular Prairie Air Mail Service.
Winnipeg → North Battleford	3 March 1930	3011e		Cachet for the inaugural Prairie Air Mail Service, catalogued for Winnipeg to North Battleford.
Winnipeg → Regina	3 March 1930	3011		Cachet for the inaugural flights of the regular Prairie Air Mail Service.
Winnipeg → Saskatoon	3 March 1930	3011d		Cachet for the inaugural Prairie Air Mail Service, catalogued for Winnipeg to Saskatoon.
Brantford → Hamilton	7 June 1930	3029		Brantford Airport dedication special-flight cachet for the catalogue-listed Brantford–Hamilton dispatch. The catalogue also reports flights on June 8.
Brantford → London	7 June 1930	3029a		Brantford Airport dedication special-flight cachet for the catalogue-listed Brantford–London dispatch. The catalogue also reports flights on June 8.
Hamilton → Brantford	7 June 1930	3029c		Brantford Airport dedication special-flight cachet, dated 7 June 1930, for the catalogue-listed Hamilton–Brantford dispatch. The catalogue also reports flights on June 8.
London → Brantford	7 June 1930	3029b		Brantford Airport dedication special-flight cachet for the catalogue-listed London–Brantford dispatch. The catalogue also reports flights on June 8.
Amos → Siscoe	28 October 1930	3061		Bilingual official-cachet issue for the catalogue-listed Amos–Siscoe service.
Siscoe → Amos	28 October 1930	3061a		Bilingual official-cachet issue for the reverse Siscoe–Amos service.
Calgary → Lethbridge	15–16 January 1931	3101b		Cachet for the addition of Lethbridge to the Prairie Service, Calgary to Lethbridge.
Lethbridge → Calgary	15–16 January 1931	3101		Cachet for the addition of Lethbridge to the Prairie Service, Lethbridge to Calgary.
Lethbridge → Medicine Hat	15–16 January 1931	3101a		Cachet for the addition of Lethbridge to the Prairie Service, Lethbridge to Medicine Hat.
Medicine Hat → Lethbridge	15–16 January 1931	3101c		Cachet for the addition of Lethbridge to the Prairie Service, Medicine Hat to Lethbridge.
Carcajou → Peace River	31 January 1931	3103k		Black cachet for the return leg of the Peace River–North Vermilion service, Carcajou to Peace River.
Fort Vermilion → Peace River	31 January 1931	3103j		Black cachet for the return leg of the Peace River–North Vermilion service, Fort Vermilion to Peace River.
North Vermilion → Peace River	31 January 1931	3103h		Black cachet for the return leg of the Peace River–North Vermilion service, North Vermilion to Peace River.
Peace River → Carcajou	31 January 1931	3103		Black cachet for the Peace River–North Vermilion service, Peace River to Carcajou.
Peace River → Fort Vermilion	31 January 1931	3103a		Black cachet for the Peace River–North Vermilion service, Peace River to Fort Vermilion.
Peace River → North Vermilion	31 January 1931	3103b		Black cachet for the Peace River–North Vermilion service, Peace River to North Vermilion.
Winnipeg → Pembina	2–3 February 1931	3105		Cachet for the Winnipeg–Pembina service connecting with U.S. Contract Air Mail Route No. 9. The catalogue distinguishes February 2 cacheted mail from the flight delayed until February 3; the applicable date for this detached image is uncertain.
Pembina → Winnipeg	3 February 1931	3105e		Circular-cachet listing for the Pembina-to-Winnipeg return item associated with the Winnipeg–Pembina service.
Vancouver	22 July 1931	3133		Cachet commemorating the official opening of Vancouver Airport; the image reads “CITY OF VANCOUVER” and “OFFICIAL OPENING AND DEDICATION”.
Sydney, N.S. → St. Pierre and Miquelon → St. John’s, Nfld.	August 1931 (projected; unflown)	3151		Souvenir item for a projected Sydney–St. Pierre and Miquelon–St. John’s service; the flight never took place.
Vancouver → Victoria	1 August 1931	3137		Official pictorial cachet for the inauguration of regular Vancouver–Victoria service.
Victoria → Vancouver	1 August 1931	3137a		Reverse-direction official pictorial cachet; black scan as identified by the archive filename.
Victoria → Vancouver	1 August 1931	3137a		Reverse-direction official pictorial cachet for the Vancouver–Victoria service.
Embarras Portage → Fort Chipewyan	17 December 1931	3177a		Official inaugural-flight cachet for the Embarras Portage–Fort Chipewyan leg; black version.
Embarras Portage → Fort Chipewyan	17 December 1931	3177a		Official inaugural-flight cachet for the Embarras Portage–Fort Chipewyan leg; purple version.
Fort McMurray → Embarras Portage	17 December 1931	3177		Embarras Portage added to the Fort McMurray–Aklavik service.
Embarras Portage → Fort McMurray	18 December 1931	3177c		Official inaugural-flight cachet for the Embarras Portage–Fort McMurray leg; black version.
Embarras Portage → Fort McMurray	18 December 1931	3177c		Official inaugural-flight cachet for the Embarras Portage–Fort McMurray leg; purple version.
Fort Chipewyan → Embarras Portage	18 December 1931	3177b		Official inaugural-flight cachet for the Fort Chipewyan–Embarras Portage leg.
Moose Jaw	22 February 1932	3207i		First-day-of-issue cachet for the 6¢ overprint on the 5¢ air mail stamp, at Moose Jaw.
Winnipeg	30 March 1932	3209d		One of three cachet types for the Winnipeg Prairie Air Mail service-termination commemorative.
Winnipeg	30 March 1932	3209d		A second type of the Winnipeg Prairie Air Mail service-termination souvenir. Its inscription gives the landing date as March 31, while the catalogue lists the Winnipeg item under March 30.
Montreal Lake → Lac la Ronge	7 June 1932	3215b		Cachet image for the Montreal Lake–Lac la Ronge listing on the Prince Albert–Lac la Ronge service, dated 7 June.
Prince Albert → Lac la Ronge	7 June 1932	3215a		Cachet image for the Prince Albert–Lac la Ronge service, dated 7 June in the catalogue.
Prince Albert → Montreal Lake	7 June 1932	3215		Cachet image for the Prince Albert–Lac la Ronge service, labelled Prince Albert–Montreal Lake, the intermediate-point listing dated 7 June.
Lac la Ronge → Montreal Lake	8 June 1932	3215c		Cachet image for the Lac la Ronge–Montreal Lake listing on the Prince Albert–Lac la Ronge service, dated 8 June.
Lac la Ronge → Prince Albert	8 June 1932	3215d		Cachet image for the Lac la Ronge–Prince Albert listing on the Prince Albert–Lac la Ronge service, dated 8 June.
Montreal Lake → Prince Albert	8 June 1932	3215e		Cachet image for the Montreal Lake–Prince Albert listing on the Prince Albert–Lac la Ronge service, dated 8 June.
Ottawa → Bradore Bay	12 July 1932	3231		Cachet image attributed to the official Ottawa–Bradore Bay mail flight of 12 July, connecting with the S.S. Empress of Britain.
Pascalis → Siscoe	15 September 1932	3245a		English–French official-cachet image for the reverse-direction Pascalis–Siscoe listing.
Siscoe → Pascalis	15 September 1932	3245		English–French official-cachet image for the first flight on the Siscoe–Pascalis service.
Fort Resolution → Great Bear Lake	6 December 1932	3247a		Official-cachet image for the Fort Resolution–Great Bear Lake listing dated 6 December.
Fort Resolution → Rae	6–10 December 1932	3247		Fort Resolution–Great Bear Lake service period. Exact day for this leg is not separately stated.
Rae → Great Bear Lake	7 December 1932	3247b		Official-cachet image for the Rae–Great Bear Lake listing dated 7 December.
Great Bear Lake → Fort Resolution	9 December 1932	3247d		Official-cachet image for the Great Bear Lake–Fort Resolution dispatch on the Fort Resolution–Great Bear Lake service.
Great Bear Lake → Rae	9 December 1932	3247c		Official-cachet image for the Great Bear Lake–Rae listing dated 9 December.
Rae → Fort Resolution	10 December 1932	3247e		Official-cachet image for the Rae–Fort Resolution dispatch on the Fort Resolution–Great Bear Lake service.
Charlottetown → Grindstone Island	7 February 1933	3305		Official cachet for the inaugural flight of the regular winter service.
Grindstone Island → Charlottetown	10 February 1933	3305a		Return-flight cachet for the inaugural regular winter service.
London → Buffalo	11 February 1933	3307		Official black cachet for the London–Buffalo dispatch, the newly established segment of the service.
Bissett → Great Falls	15 February 1933	3309e		Filed as 3309d; the scan reads Bissett to Great Falls, corresponding to catalogue 3309e.
Bissett → Great Falls	15 February 1933	3309e		Great Falls–Wadhope service inaugural; return leg.
Bissett → Wadhope	15 February 1933	3309b		Official cachet for the Bissett–Wadhope leg of the flight via Bissett.
Great Falls → Bissett	15 February 1933	3309		Official cachet for the Great Falls–Wadhope flight via Bissett; this image marks the Great Falls–Bissett leg.
Great Falls → Wadhope	15 February 1933	3309a		Official cachet for the Great Falls–Wadhope leg of the flight via Bissett.
Wadhope → Bissett	15 February 1933	3309c		Great Falls–Wadhope service inaugural; return leg.
Big River → Beauval	16 March 1933	3315a		Official-cachet image for the Big River–Beauval dispatch on the Big River–Ile a la Crosse service.
Big River → Green Lake	16 March 1933	3315		Big River–Ile a la Crosse service inaugural. Day confirmed in the 1997 catalogue; omitted from the AMCN2 listing.
Big River → Ile a la Crosse	16 March 1933	3315b		Official cachet image for the catalogue-listed Big River to Ile a la Crosse dispatch on the 1933 service.
Green Lake → Beauval	16 March 1933	3315c		Official cachet image for the catalogue-listed Green Lake to Beauval dispatch on the 1933 service.
Beauval → Big River	17 March 1933	3315j		Official cachet image for the catalogue-listed return dispatch from Beauval to Big River.
Beauval → Green Lake	17 March 1933	3315i		Official cachet image for the catalogue-listed return dispatch from Beauval to Green Lake.
Green Lake → Big River	17 March 1933	3315k		Official cachet image for the catalogue-listed return dispatch from Green Lake to Big River.
Ile a la Crosse → Big River	17 March 1933	3315h		Official cachet image for the catalogue-listed return dispatch from Ile a la Crosse to Big River.
Montreal → Chicago	14 or 15 July 1933 (commemorative; not flown on the Balbo flight)	3331d		Commemorative Montreal cachet variant with 8¢ franking. The catalogue states that these covers were not flown on the Balbo flight.
Camsell River → Cameron Bay	5 December 1933	3349a		Official cachet image for the first-flight dispatch from Camsell River to Cameron Bay.
Rae → Camsell River	5 December 1933	3349		Official cachet image for the first-flight dispatch from Rae to Camsell River.
Cameron Bay → Camsell River	9 December 1933	3349b		Official cachet image for the return dispatch from Cameron Bay to Camsell River.
Camsell River → Rae	9 December 1933	3349c		Official cachet image for the return dispatch from Camsell River to Rae.
Sept Isles → Havre St. Pierre	14 December 1933	3351		Official cachet image for the Sept Isles to Havre St. Pierre leg of the December 1933 service.
Sept Isles → Natashquan	14–15 December 1933	3351a		Departed Sept Isles on 14 December; the flight continued from Havre St. Pierre to Natashquan on 15 December.
Havre St. Pierre → Natashquan	15 December 1933	3351b		Cachet for the Sept Isles–Natashquan service, with the official cachets inscribed in English and French.
Havre St. Pierre → Sept Isles	15 December 1933	3351e		Cachet for the return service to Sept Isles, with the official cachets inscribed in English and French.
Natashquan → Havre St. Pierre	15 December 1933	3351c		Cachet for the return service, with the official cachets inscribed in English and French.
Natashquan → Sept Iles	15 December 1933	3351d		Cachet for the return service to Sept Iles, with the official cachets inscribed in English and French.
Havre St. Pierre → Port Menier	24 December 1933	3353		Official cachet for the Christmas mail flight to Port Menier; the return flight was delayed until January.
Port Menier → Havre St. Pierre	16 January 1934	3353a		Official cachet for the delayed return flight of the Christmas mail service.
Cameron Bay → Coppermine	25 January 1934	3401		Cameron Bay–Coppermine service inaugural. Date confirmed in the 1997 catalogue; AMCN2 truncates the day.
Coppermine → Cameron Bay	27 January 1934	3401a		Cameron Bay–Coppermine service inaugural; return leg. Date confirmed in the 1997 catalogue; AMCN2 truncates the day.
Beauval → Prince Albert	21 May 1934	3409c		Official-flight cachet for the Beauval–Prince Albert service.
Ile a la Crosse → Prince Albert	21 May 1934	3409b		Official-flight cachet for the return service to Prince Albert.
Prince Albert → Beauval	21 May 1934	3409		Official-flight cachet for the Prince Albert–Ile a la Crosse service, on which Beauval was an intermediate point.
Prince Albert → Ile a la Crosse	21 May 1934	3409a		Official-flight cachet for the Prince Albert–Ile a la Crosse service; Beauval was an intermediate point.
Fond du Lac → Fort Chipewyan	14 June 1934	3411a		Return cachet for the service designated the First Official Flight to Fond du Lac.
Fort Chipewyan → Fond du Lac	14 June 1934	3411		First Official Flight cachet; Fond du Lac was established as a post office in connection with the service.
Kewagama → Rouyn	2 October 1934	3423a		Official-cachet image for the return Kewagama–Rouyn air service.
Rouyn → Kewagama	2 October 1934	3423		Official-cachet image for the Rouyn–Kewagama air service.
Atlin → Telegraph Creek	18 November 1934	3427		First-service image with the First Official Flight cachet for Atlin–Telegraph Creek.
Telegraph Creek → Atlin	18 November 1934	3427a		First-service return image with the First Official Flight cachet for Telegraph Creek–Atlin.
Beresford Lake → Winnipeg	11 December 1934	3431e		Return First Official Flight cachet image for the Beresford Lake–Winnipeg leg.
Bissett → Winnipeg	11 December 1934	3431g		Return First Official Flight cachet image for the Bissett–Winnipeg leg.
Diana → Winnipeg	11 December 1934	3431d		Return First Official Flight cachet image for the Diana–Winnipeg leg.
Kenora → McKenzie Island	11 December 1934	3433a		First-flight cachet for the Kenora–McKenzie Island dispatch.
Kenora → Red Lake	11 December 1934	3433		First-flight cachet for the Kenora–Red Lake dispatch, part of the inaugural Kenora–McKenzie Island service.
McKenzie Island → Kenora	11 December 1934	3433b		Return-direction first-flight cachet for the McKenzie Island–Kenora dispatch.
Red Lake → Kenora	11 December 1934	3433c		Official cachet for the Red Lake–Kenora dispatch associated with the inaugural service.
Wadhope → Winnipeg	11 December 1934	3431f		Return First Official Flight cachet image for the Wadhope–Winnipeg leg.
Winnipeg → Beresford Lake	11 December 1934	3431b		First Official Flight cachet image for the Winnipeg–Beresford Lake leg of the Winnipeg–Diana service.
Winnipeg → Bissett	11 December 1934	3431		First Official Flight cachet image for the Winnipeg–Bissett leg of the Winnipeg–Diana service.
Winnipeg → Diana	11 December 1934	3431c		First Official Flight cachet image for the Winnipeg–Diana service.
Winnipeg → Wadhope	11 December 1934	3431a		First Official Flight cachet image for the Winnipeg–Wadhope leg of the Winnipeg–Diana service.
Casummit Lake → Sioux Lookout	12 December 1934	3435a		Return-direction first-flight cachet for the Casummit Lake–Sioux Lookout service.
Sioux Lookout → Casummit Lake	12 December 1934	3435		First-flight cachet for the service extension from Sioux Lookout to Casummit Lake.
Kenora → Whitefish Bay	5 January 1935	3501		Inaugural-flight cachet for the Kenora–Whitefish Bay service.
Whitefish Bay → Kenora	5 January 1935	3501a		Return-direction inaugural-flight cachet for the Whitefish Bay–Kenora service.
Bourlamaque → Siscoe	11 January 1935	3503d		Bilingual English/French official cachet for the Bourlamaque–Siscoe dispatch.
Siscoe → Val d’Or	11 January 1935	3503		Official-cachet dispatch on the Siscoe–Val d’Or leg; Val d’Or was an intermediate point on the Siscoe–Bourlamaque route.
Winnipeg → God’s Lake	14 January 1935	3505a		Black cachet variant for the Winnipeg–God’s Lake dispatch, carried via Norway House.
Winnipeg → God’s Lake	14 January 1935	3505a		Cachet for the Winnipeg–God’s Lake dispatch of the Winnipeg–God’s Lake service. The archive filename labels this image “rouge”; the catalogue lists the dispatch in black or purple.
Winnipeg → Norway House	14 January 1935	3505		Black cachet variant for the Winnipeg–Norway House dispatch.
Winnipeg → Norway House	14 January 1935	3505		Purple cachet variant for the Winnipeg–Norway House dispatch.
God’s Lake → Winnipeg	15 January 1935	3505d		Cachet for the God’s Lake–Winnipeg return dispatch of the Winnipeg–God’s Lake service.
Norway House → Winnipeg	15 January 1935	3505e		Cachet for the Norway House–Winnipeg dispatch of the Winnipeg–God’s Lake service. The archive filename labels this image “purple”; the catalogue lists it in black.
Cross Lake → Norway House	27 January 1935	3507a		Cachet for the Cross Lake–Norway House return dispatch of the Norway House–Cross Lake service.
Norway House → Cross Lake	27 January 1935	3507		Cachet for the Norway House–Cross Lake service, flown in both directions on January 27, 1935.
Winnipeg → Berens River	2 February 1935	3509		Cachet for the Winnipeg–Berens River dispatch of the Winnipeg–Berens River service.
Berens River → Winnipeg	4 February 1935	3509a		Cachet for the Berens River–Winnipeg return dispatch of the Winnipeg–Berens River service.
Collins → Pickle Crow	22 February 1935	3513		Cachet for the Collins–Pickle Crow first-flight service.
Pickle Crow → Collins	22 February 1935	3513a		Cachet for the Pickle Crow–Collins return dispatch of the Collins–Pickle Crow first-flight service.
Halifax → Sydney	29 July 1935	3521		Halifax–Sydney cachet for the July 29 dispatch in the six-day special flight series celebrating Sydney’s 150th anniversary; the catalogue lists this variant in blue.
Sydney → Halifax	29 July 1935	3521a		Sydney–Halifax cachet for the July 29 dispatch in the six-day special flight series celebrating Sydney’s 150th anniversary; the catalogue lists this variant in red.
Halifax → Sydney	30 July 1935	3521b		Halifax–Sydney cachet for the July 30 dispatch in the six-day special flight series celebrating Sydney’s 150th anniversary; the catalogue lists this variant in black.
Sydney → Halifax	30 July 1935	3521c		Sydney–Halifax cachet for the July 30 dispatch in the six-day special flight series celebrating Sydney’s 150th anniversary; the catalogue lists this variant in blue.
Halifax → Sydney	31 July 1935	3521d		Sydney’s 150th-anniversary special-flight cachet, listed in brown.
Sydney → Halifax	31 July 1935	3521e		Sydney’s 150th-anniversary special-flight cachet, listed in brown; darker scan variant.
Sydney → Halifax	31 July 1935	3521e		Sydney’s 150th-anniversary special-flight cachet, listed in brown.
Halifax → Sydney	1 August 1935	3521f		Sydney’s 150th-anniversary special-flight cachet, listed in green.
Sydney → Halifax	1 August 1935	3521g		Sydney’s 150th-anniversary special-flight cachet, listed in black.
Halifax → Sydney	2 August 1935	3521h		Sydney’s 150th-anniversary special-flight cachet, listed in magenta.
Sydney → Halifax	2 August 1935	3521i		Sydney’s 150th-anniversary special-flight cachet, listed in purple.
Halifax → Sydney	3 August 1935	3521j		Sydney’s 150th-anniversary special-flight cachet, listed in purple.
Sydney → Halifax	3 August 1935	3521k		Sydney’s 150th-anniversary special-flight cachet, listed in green.
Cole → Kenora	16 August 1935	3523c		First official-flight cachet for Cole’s addition as a call on the Kenora–McKenzie Island route.
Cole → McKenzie Island	16 August 1935	3523a		First official-flight cachet for Cole’s addition as a call on the Kenora–McKenzie Island route.
Kenora → Cole	16 August 1935	3523		First official-flight cachet for Cole’s addition as a call on the Kenora–McKenzie Island route.
McKenzie Island → Cole	16 August 1935	3523b		First official-flight cachet for Cole’s addition as a call on the Kenora–McKenzie Island route.
Fort Chipewyan → Goldfields	2 September 1935	3525		Official first-flight cachet for the Fort Chipewyan–Goldfields service.
Goldfields → Fort Chipewyan	2 September 1935	3525a		Return-direction cachet for the Goldfields–Fort Chipewyan service; the catalogue says the pilot returned with mail the same day.
Beauval → Dore Lake	18 September 1935	3527b		Catalogue-listed black cachet for the Beauval–Dore Lake leg of the route extension.
Dore Lake → Beauval	18 September 1935	3527a		Catalogue-listed black cachet for the Dore Lake–Beauval leg of the route extension.
Dore Lake → Prince Albert	18 September 1935	3527c		Catalogue-listed black cachet for the Dore Lake–Prince Albert leg of the route extension.
Prince Albert → Dore Lake	18 September 1935	3527		Catalogue-listed cachet for the Dore Lake addition to the Prince Albert–Ile a la Crosse route.
Vancouver → Seattle	1 October 1935	3529		Cachet for the Vancouver–Seattle service, matching catalogue item 3529. Filed in the archive as 3529a.
Kenora → Machin	19 May 1936	3601		Official first-flight cachet for the Kenora–Machin service; the catalogue lists black and purple cachets.
Machin → Kenora	19 May 1936	3601a		Return-direction cachet for the Kenora–Machin service; the catalogue lists black and purple cachets.
Cole → Golden Arm	8 June 1936	3605b		Catalogue-listed cachet for the Cole–Golden Arm leg of the route extension.
Golden Arm → Cole	8 June 1936	3605a		Catalogue-listed cachet for the Golden Arm–Cole leg; the image includes a Canada Goose design.
Golden Arm → Red Lake	8 June 1936	3605c		Catalogue-listed cachet for the Golden Arm–Red Lake leg of the route extension.
Red Lake → Golden Arm	8 June 1936	3605		Catalogue-listed cachet for Golden Arm’s addition to the Kenora–McKenzie Island route.
Red Lake → Golden Arm	8 June 1936	3605		Cachet for the Red Lake–Golden Arm inaugural service. Filed in the archive as 3619f.bmp; the route matches catalogue 3605.
Buffalo Narrows → Ile a la Crosse	18–19 November 1936 (day unconfirmed)	3615e		Service period shown. AMCN2 prints “Nov. 1” for this leg, inconsistent with its 18–19 November heading; exact day remains unconfirmed.
Buffalo Narrows → La Loche	18 November 1936	3615b		First-official-flight cachet for the La Loche extension via Buffalo Narrows.
Ile a la Crosse → Buffalo Narrows	18 November 1936	3615		First-official-flight cachet for the Buffalo Narrows extension of the Prince Albert–Ile a la Crosse service.
Ile a la Crosse → La Loche	18 November 1936	3615a		First-official-flight cachet for the La Loche extension.
La Loche → Buffalo Narrows	19 November 1936	3615c		First-official-flight cachet for the return-direction dispatch on the extended service.
La Loche → Ile a la Crosse	19 November 1936	3615d		First-official-flight cachet for the return-direction dispatch on the extended service.
Rimouski → Harrington Harbour	17 December 1936	3619c		Bilingual official-cachet variant for the inaugural winter service from Rimouski.
Rimouski → Havre St. Pierre	17 December 1936	3619a		Bilingual official-cachet variant for the inaugural winter service from Rimouski.
Rimouski → Natashquan	17 December 1936	3619b		Bilingual official-cachet variant for the inaugural winter service from Rimouski.
Harrington Harbour → Rimouski	18 December 1936	3619d		Bilingual official-cachet variant for the return service.
Natashquan → Rimouski	18 December 1936	3619e		Bilingual official-cachet variant for the return service.
Sept Iles → Rimouski	19 December 1936	3619g		Bilingual official-cachet variant for the return service.
Rimouski → Port Menier	25 December 1936	3619h		Official cachet for the winter-service dispatch. This leg was flown on December 25, not when the service began on December 17.
Port Menier → Rimouski	30 December 1936	3619i		Official cachet for the return winter-service dispatch, flown on December 30.
Fort St. John → Fort Nelson	11 January 1937	3701		Official cachet for a Fort St. John–Fort Nelson service dispatch.
Fort Nelson → Fort St. John	13 January 1937	3701a		Official cachet for the return-direction service dispatch.
Fort St. John → Finlay Forks	13 January 1937	3701c		Official cachet for a Fort St. John–Finlay Forks service dispatch.
Fort St. John → Fort Grahame	13 January 1937	3701d		Official cachet for a Fort St. John–Fort Grahame service dispatch.
Fort St. John → Gold Bar	13 January 1937	3701b		Official cachet for a Fort St. John–Gold Bar service dispatch.
Finlay Forks → Fort St. John	15 January 1937	3701f		Official cachet for the return-direction service dispatch.
Fort Grahame → Fort St. John	15 January 1937	3701e		Official cachet for the return-direction service dispatch.
Gold Bar → Fort St. John	15 January 1937	3701g		Official cachet for the return-direction service dispatch.
Prince George → Fort St. James	2 June 1937	3709		Official cachet for a dispatch on the Prince George–Takla Landing inaugural route, which included Fort St. James as an intermediate stop.
Prince George → Manson Creek	2 June 1937	3709a		Official cachet for the Prince George–Manson Creek dispatch on the inaugural route; duplicate image.
Prince George → Manson Creek	2 June 1937	3709a		Official cachet for the Prince George–Manson Creek dispatch on the inaugural route.
Prince George → Takla Landing	2 June 1937	3709b		Official cachet image for the June 1937 Prince George–Takla Landing inaugural service, showing the outbound leg.
Fort St. James → Prince George	3 June 1937	3709e		Official cachet image for the June 1937 return leg from Fort St. James on the Prince George–Takla Landing service.
Manson Creek → Prince George	3 June 1937	3709d		Official cachet image for the June 1937 return leg from Manson Creek on the Prince George–Takla Landing service.
Takla Landing → Prince George	3 June 1937	3709c		Official cachet image for the return leg of the June 1937 Prince George–Takla Landing inaugural service.
Prince George → Fort Grahame	5 June 1937	3711b		Official cachet image for the outbound Prince George–Fort Grahame leg of the June 1937 inaugural service.
Prince George → Fort McLeod	5 June 1937	3711		Official cachet image for the June 1937 Prince George–Fort Grahame inaugural service, showing the Fort McLeod leg.
Finlay Forks → Prince George	6 June 1937	3711d		Official cachet image for the June 1937 return leg from Finlay Forks on the Prince George–Fort Grahame service.
Fort Grahame → Prince George	6 June 1937	3711c		Official cachet image for the return Fort Grahame–Prince George leg of the June 1937 inaugural service.
Fort McLeod → Prince George	7 June 1937	3711e		Official cachet image for the June 1937 return leg from Fort McLeod on the Prince George–Fort Grahame service.
Edmonton → Fort Nelson	5 July 1937	3713		Official cachet image for the Edmonton–White Horse inaugural service, showing the Edmonton–Fort Nelson leg.
Edmonton → White Horse	5 July 1937	3713a		Official cachet image for the outbound Edmonton–White Horse leg of the July 1937 inaugural service.
Fort Nelson → White Horse	5 July 1937	3713b		Official cachet image for the Fort Nelson–White Horse leg of the July 1937 Edmonton–White Horse inaugural service.
Fort Nelson → Edmonton	8 July 1937	3713e		First official flight cachet for the Fort Nelson–Edmonton return leg of the Edmonton–White Horse service.
White Horse → Edmonton	8 July 1937	3713d		First official flight cachet for the White Horse–Edmonton return leg; the image spells the name “White Horse.”
White Horse → Fort Nelson	8 July 1937	3713c		Official cachet image for the return White Horse–Fort Nelson leg of the July 1937 Edmonton–White Horse service.
Prince Albert → Fond du Lac	12 July 1937	3717		First official flight cachet for the Prince Albert–Fond du Lac leg on the additional-points service to Goldfields.
Prince Albert → Norite Bay	12 July 1937	3717b		First official flight cachet for the added Prince Albert–Norite Bay stop; Norite Bay was a new post office.
Prince Albert → Stony Rapids	12 July 1937	3717a		First official flight cachet for the added Prince Albert–Stony Rapids stop on the Goldfields route.
Fond du Lac → Prince Albert	13 July 1937	3717e		Prince Albert–Fond du Lac service inaugural; return leg.
Norite Bay → Prince Albert	13 July 1937	3717c		First official flight cachet for the Norite Bay–Prince Albert return leg of the additional-points service.
Stony Rapids → Prince Albert	13 July 1937	3717d		First official flight cachet for the Stony Rapids–Prince Albert return leg of the additional-points service.
Fort Smith → Aklavik	21 July–1 August 1937 (river-steamer mail; not an air flight)	3719		Vice-Regal Party Arctic Tour mail associated with the S.S. Distributor river-steamer service, not an air flight; this is the HBC Flag version.
Fort Smith → Aklavik	21 July–1 August 1937 (river-steamer mail; not an air flight)	3719		Vice-Regal Party Arctic Tour mail associated with the S.S. Distributor river-steamer service, not an air flight.
Montreal → Burlington	10 August 1937	3721b		Montreal–Burlington cachet from the Boston–Burlington–Montreal air service.
Herb Lake → The Pas	17 August 1937	3723a		First official flight cachet for the Herb Lake–The Pas return leg of Arrow Airways’ service.
The Pas → Herb Lake	17 August 1937	3723		First official flight cachet for Arrow Airways’ The Pas–Herb Lake service.
Cumberland House → The Pas	8 September 1937	3729b		Return-direction cachet image for the official Cumberland House–The Pas service.
Sturgeon Landing → The Pas	8 September 1937	3729c		Cachet image for the Sturgeon Landing–The Pas dispatch on the official The Pas–Cumberland House service.
The Pas → Cumberland House	8 September 1937	3729a		Cachet image for the official The Pas–Cumberland House service.
The Pas → Sturgeon Landing	8 September 1937	3729		Cachet image labelled The Pas–Sturgeon Landing, associated with the official The Pas–Cumberland House service.
Germansen Landing → Prince George	26 January 1938	3803a		Return-direction cachet image for the inaugural Germansen Landing–Prince George service.
Prince George → Germansen Landing	26 January 1938	3803		Cachet image for the inaugural Prince George–Germansen Landing service, added to the Prince George–Fort St. James route.
Prince George → Ware	12 March 1938	3807		Cachet image for the inaugural Prince George–Ware service, when Ware was added to the Prince George–Fort Grahame route.
Ware → Prince George	14 March 1938	3807a		Return-direction cachet image for the inaugural Ware–Prince George service.
White Horse → Fairbanks	3 May 1938	3813		White Horse cachet image for the May 3 dispatch to Fairbanks on the Pacific Alaska Airways through service.
White Horse → Juneau	8 May 1938	3813a		White Horse cachet image for the May 8 dispatch to Juneau on the Pacific Alaska Airways through service.
Vancouver → Fort St. John	4 August 1938	3833c		Proof image of the Vancouver–Fort St. John cachet for the inaugural official service.
Vancouver → Fort St. John	4 August 1938	3833c		BMP cachet-image variant for the Vancouver–Fort St. John dispatch of the inaugural official service.
Vancouver → Prince George	4 August 1938	3833b		Proof image of the Vancouver–Prince George cachet for the inaugural official service.
Vancouver → Prince George	4 August 1938	3833b		BMP cachet-image variant for the Vancouver–Prince George dispatch of the inaugural official service.
Vancouver → Quesnel	4 August 1938	3833a		Proof image of the Vancouver–Quesnel cachet for the inaugural official service.
Vancouver → White Horse	4 August 1938	3833d		BMP cachet-image variant for the Vancouver–White Horse dispatch of the inaugural official service.
Vancouver → Williams Lake	4 August 1938	3833		Detached cachet image for the Vancouver–Williams Lake dispatch of the inaugural official service.
Vancouver ↔ White Horse corridor	4–8 August 1938	3833 series		Composite reference sheet of multiple cachets for the Vancouver–White Horse service. Retained as one archive image.
White Horse → Vancouver	6 August 1938	3833e		Proof image of the White Horse–Vancouver return-direction cachet for the inaugural official service.
White Horse → Vancouver	6 August 1938	3833e		BMP cachet-image variant for the White Horse–Vancouver return dispatch of the inaugural official service.
Fort St. John → Vancouver	7 August 1938	3833f		Proof image of the Fort St. John–Vancouver return-direction cachet for the inaugural official service.
Fort St. John → Vancouver	7 August 1938	3833f		BMP cachet-image variant for the Fort St. John–Vancouver return dispatch of the inaugural official service.
Prince George → Vancouver	7 August 1938	3833g		Proof image of the Prince George–Vancouver return-direction cachet for the inaugural official service.
Prince George → Vancouver	7 August 1938	3833g		Official cachet for the inaugural Vancouver–White Horse service, depicting the Prince George–Vancouver leg.
Quesnel → Vancouver	7 August 1938	3833h		Proof image of the official cachet for the Quesnel–Vancouver leg of the inaugural service; not a flown cover.
Quesnel → Vancouver	7 August 1938	3833h		Official cachet for the Quesnel–Vancouver leg of the inaugural Vancouver–White Horse service.
Williams Lake → Vancouver	8 August 1938	3833i		Official cachet for the Williams Lake–Vancouver leg of the inaugural service; this version references the Cameron Claim.
Calgary → Montreal	1 March 1939	3903ac		Duplicate archive-file variant of the Calgary–Montreal segment cachet for the Trans-Continental route inaugurated on 1 March 1939.
Calgary → Montreal	1 March 1939	3903ac		Cachet for the Calgary–Montreal segment of the Trans-Continental route inaugurated on 1 March 1939.
Calgary → Toronto	1 March 1939	3903ad		Duplicate archive-file variant of the Calgary–Toronto segment cachet for the Trans-Continental route inaugurated on 1 March 1939.
Calgary → Toronto	1 March 1939	3903ad		Cachet for the Calgary–Toronto segment of the Trans-Continental route inaugurated on 1 March 1939.
Calgary → Vancouver	1 March 1939	3903ae		Cachet for the Calgary–Vancouver segment of the Trans-Continental route inaugurated on 1 March 1939.
Edmonton → Montreal	1 March 1939	3903af		Proof image of the Edmonton–Montreal segment cachet for the Trans-Continental route inaugurated on 1 March 1939; this is not a flown cover.
Edmonton → Montreal	1 March 1939	3903af		Cachet for the Edmonton–Montreal segment of the Trans-Continental route inaugurated on 1 March 1939.
Edmonton → Toronto	1 March 1939	3903ag		Proof image of the Edmonton–Toronto segment cachet for the Trans-Continental route inaugurated on 1 March 1939; this is not a flown cover.
Edmonton → Toronto	1 March 1939	3903ag		First-official-flight cachet for the TCA Trans-Continental route.
Lethbridge → Montreal	1 March 1939	3903ah		First-official-flight cachet for the TCA Trans-Continental route.
Lethbridge → Vancouver	1 March 1939	3903ai		First-official-flight cachet for the TCA Trans-Continental route.
Montreal → Calgary	1 March 1939	3903w		Trans-Canada Airlines transcontinental-route inaugural cachet, with a bilingual Lachine Rapids illustration.
Montreal → Edmonton	1 March 1939	3903x		Trans-Canada Airlines transcontinental-route inaugural cachet, with a bilingual Jacques Cartier Bridge illustration.
Montreal → Lethbridge	1 March 1939	3903y		Trans-Canada Airlines transcontinental-route inaugural cachet, with a bilingual Lachine Canal illustration.
Montreal → North Bay	1 March 1939	3903j		Cachet image for the Montreal–North Bay leg, with bilingual Montreal Harbour wording.
Montreal → Regina	1 March 1939	3903v		Trans-Canada Airlines transcontinental-route inaugural cachet, with a bilingual tobogganing-at-Montreal illustration.
Montreal → Vancouver	1 March 1939	3903z		Trans-Canada Airlines transcontinental-route inaugural cachet, marked “First Official Flight.”
North Bay → Montreal	1 March 1939	3903f		Cachet image for the North Bay–Montreal leg, with a Champlain-themed design.
North Bay → Ottawa	1 March 1939	3903e		Cachet image for the North Bay–Ottawa leg of the TCA Trans-Continental route inauguration.
North Bay → Toronto	1 March 1939	3903d		Cachet image for the North Bay–Toronto leg of the TCA Trans-Continental route inauguration.
North Bay → Winnipeg	1 March 1939	3903q		Cachet image for the North Bay–Winnipeg leg of the TCA Trans-Continental route inauguration.
Ottawa → Vancouver	1 March 1939	3903u		Trans-Canada Airlines transcontinental-route inaugural cachet, marked “First Official Flight.”
Regina → Montreal	1 March 1939	3903aa		Cachet for the Regina–Montreal segment of the Trans-Continental route inaugurated on 1 March 1939.
Regina → Vancouver	1 March 1939	3903ab		Cachet for the Regina–Vancouver segment of the Trans-Continental route inaugurated on 1 March 1939.
Toronto → Calgary	1 March 1939	3903r		Cachet image for the Toronto–Calgary leg, featuring the University of Toronto.
Toronto → Edmonton	1 March 1939	3903s		Cachet image for the Toronto–Edmonton leg, featuring a Toronto skyline design.
Toronto → North Bay	1 March 1939	3903o		Cachet image for the Toronto–North Bay leg, with a Canadian National Exhibition reference.
Toronto → Ottawa	1 March 1939	3903g		Cachet image for the Toronto–Ottawa leg, featuring Toronto’s waterfront.
Toronto → Vancouver	1 March 1939	3903t		Cachet image for the Toronto–Vancouver leg, featuring a Toronto street design.
Transcontinental service (multiple routes)	1 March 1939	3903 series		Composite reference sheet of multiple transcontinental cachets, including Edmonton and Vancouver dispatches. Retained as one archive image.
Vancouver → Calgary	1 March 1939	3903aj		Proof image of the first-official-flight cachet for the TCA Trans-Continental route.
Vancouver → Calgary	1 March 1939	3903aj		Separate BMP archive image of the first-official-flight cachet for the TCA Trans-Continental route.
Vancouver → Lethbridge	1 March 1939	3903ak		Proof image of the first-official-flight cachet for the TCA Trans-Continental route.
Vancouver → Lethbridge	1 March 1939	3903ak		Separate BMP archive image of the first-official-flight cachet for the TCA Trans-Continental route.
Vancouver → Montreal	1 March 1939	3903al		Proof image of the first-official-flight cachet for the TCA Trans-Continental route.
Vancouver → Montreal	1 March 1939	3903al		Separate BMP archive image of the first-official-flight cachet for the TCA Trans-Continental route.
Vancouver → Ottawa	1 March 1939	3903an		Proof image of the first-official-flight cachet for the TCA Trans-Continental route.
Vancouver → Ottawa	1 March 1939	3903an		Separate BMP archive image of the first-official-flight cachet for the TCA Trans-Continental route.
Vancouver → Regina	1 March 1939	3903am		Proof image of the first-official-flight cachet for the TCA Trans-Continental route.
Vancouver → Regina	1 March 1939	3903am		Separate BMP archive image of the first-official-flight cachet for the TCA Trans-Continental route.
Vancouver → Toronto	1 March 1939	3903ao		Proof image of the cachet for the TCA Trans-Continental route inauguration; not a flown cover.
Vancouver → Toronto	1 March 1939	3903ao		Separate bitmap image of the cachet for the TCA Trans-Continental route inauguration.
Winnipeg → North Bay	1 March 1939	3903		Cachet for the Winnipeg–North Bay segment of the Trans-Continental route inaugurated on 1 March 1939.
Winnipeg → Ottawa	1 March 1939	3903b		Cachet image for the Winnipeg–Ottawa leg of the TCA Trans-Continental route inauguration.
Winnipeg → Toronto	1 March 1939	3903a		Cachet for the Winnipeg–Toronto segment of the Trans-Continental route inaugurated on 1 March 1939.
Shediac → Botwood	27 June 1939	3921e		Pan American Airways trans-Atlantic dispatch cachet for the Shediac-to-Botwood leg.
Shediac → Foynes	27–28 June 1939	3921f		Pan American Airways trans-Atlantic dispatch cachet for the Shediac-to-Foynes leg; “Eire” identifies the destination context.
Shediac → New York	1 July 1939	3921g		Pan American Airways trans-Atlantic service dispatch cachet for the Shediac-to-New York leg.
Montreal → Botwood	5–10 August 1939	3925j		Imperial Airways trans-Atlantic dispatch cachet, labelled black. The catalogue gives the service period; the exact date of this leg is not established.
Montreal → Foynes	5–10 August 1939	3925k		Imperial Airways trans-Atlantic dispatch cachet, labelled black. The catalogue gives the service period; the exact date of this leg is not established.
Montreal → Southampton	5–10 August 1939	3925l		Imperial Airways trans-Atlantic dispatch cachet, labelled black. The catalogue gives the service period; the exact date of this leg is not established.
Toronto	16–17 August 1940	4005		Commemorative cachet for the Eleventh Annual Convention and Exhibition of the American Air Mail Society in Toronto; this is an event cover, not a flown route.
Moncton → Bangor	3 January 1941	4101		First-flight service cachet for the Moncton–Bangor route.
Quebec → Montreal	16 April 1942	4203d		Return-leg cachet for the Montreal–Three Rivers–Quebec service.
Three Rivers → Montreal	16 April 1942	4203e		Return-leg cachet for the Montreal–Three Rivers–Quebec service.
Moncton → Gander	1 May 1942	4205		Cachet for the first regular Canada–Newfoundland service, on the Moncton–Gander leg via Sydney.
Sydney → Gander	1 May 1942	4205b		Cachet for the Sydney–Gander leg of the first regular Canada–Newfoundland service.
Sydney → St. John’s	1 May 1942	4205c		Cachet for the Sydney–St. John’s leg of the first regular Canada–Newfoundland service.
Montreal → Washington, D.C.	15 April 1946	4605a		Montreal cachet for the first official Montreal–Washington flight.
Ottawa → Washington, D.C.	15 April 1946	4605		Ottawa cachet for the first official Ottawa–Washington flight; the image also depicts the Peace Tower.
London → Chicago	1 July 1946	4609d		London dispatch for the inaugural London–Chicago service.
Montreal → Chicago	1 July 1946	4609		English-language Montreal cachet for the inaugural Montreal–Chicago service.
Montreal → Chicago	1 July 1946	4609		French-language Montreal cachet for the inaugural Montreal–Chicago service.
Ottawa → Chicago	1 July 1946	4609b		Ottawa dispatch for the inaugural Ottawa–Chicago service.
Toronto → Chicago	1 July 1946	4609c		Toronto dispatch for the inaugural Toronto–Chicago service.
London → Cleveland	1 August 1946	4613a		London cachet for Trans-Canada Airlines’ first service into Cleveland.
Toronto → Cleveland	1 August 1946	4613		Toronto cachet for Trans-Canada Airlines’ first service into Cleveland.
Halifax → Boston	1 April 1947	4711		Halifax cachet for the Boston service; the catalogue says the first flight went via Yarmouth.
Yarmouth → Boston	1 April 1947	4711a		Yarmouth cachet for the Boston service on its first scheduled date.
Saint John → Boston	15 April 1947	4711b		Saint John cachet for the Boston service, inaugurated there on April 15.
Vancouver → Fiji	13 July 1949	4903a		Canadian Pacific Airlines trans-Pacific service inaugural cachet, Fiji-destination variant.
Vancouver → Sydney, Australia	13 July 1949	4903b		Canadian Pacific Airlines trans-Pacific service inaugural cachet, Sydney-destination variant.
Vancouver → Hong Kong	19 September 1949	4911		Canadian Pacific Airlines alternate trans-Pacific route inaugural cachet, Vancouver–Hong Kong variant dated 19 September.
Toronto → New York	18 April 1950	5005		Official cachet for the first Canadian airmail carried by jet aircraft, on the Avro C-102 Jetliner demonstration flight.