[Note: U.S. rates are not included in this article]
The international air mail post card rate to all countries was 10 cents, a rate which had been introduced on January 1 1966. The air mail post card rate remained unchanged during the Centennial period. On July 1, 1971, the surface post card rate to all destinations was increased to 10 cents, the same rate as that for air mail service, eliminating the surface post card rate.
1. To June 30, 1971
Senders had the option of transmitting their post cards by surface mail (link) or by air mail.
German Federal Republic
Toronto to Munich, October 5, 1967
10 cents air mail post card rate
Austria
Halifax to Vienna, September 28, 1967
10 cents air mail post card rate
Belgium
Montreal to Brussels, July 2, 1967
10 cents air mail post card rate
Netherlands
Montreal to Amsterdam, July 14, 1967
10 cents air mail post card rate
Iceland
Montreal to Reykjavik, May 12, 1967
10 cents air mail post card rate
Switzerland
Montreal to Zug, August 29, 1967
10 cents air mail post card rate
Montreal to Wellington, Jume 1, 1967
10 cents air mail post card rate
Hong Kong
Toronto to Hong Kong, July 1969
10 cents air mail post card rate
Indonesia
Vancouver to Palembang, May 13, 1971
10 cents air mail post card rate
India
Expo 67 Montreal to Madras, June 13, 1967
10 cents air mail post card rate
Mali
Delta to Sangha, September 26, 1969
2. From July 1, 1971
The surface post card rate to all destinations was increased to 10 cents, the same as the air mail post card rate, eliminating the surface post card service.
Great Britain
Macdonald College to York, June 27, 1972
10 cents international post card rate
Jasper Park Lodge to Edinburgh, August 7, 1972
10 cents air mail post card rate
Calgary to London, October 1, 1973
10 cents post card rate
Change of Address card (5-72)
German Federal Republic
Toronto to Munich, October 12, 1972
10 cents international post card rate
Sweden
Quebec to Orebro, July 6, 1971
10 cents international post card rate
Italy
Toronto to Venice, 1972
10 cents international post card rate
Norway
Vancouver to Asmark, June 13, 1972
10 cents international post card rate
Tonga
Victoria to Vava'u, April 23, 1972
10 cents international post card rate
Martinique
Sorel to Trois Islets, August 1, 1974
10 cents international post card rate
Insufficiently Prepaid
a) To June 30, 1971
Air conveyance required that at least 75% of the air mail rate was prepaid, otherwise the card was sent by surface mail. The post card shown below was shortpaid for air conveyance. 6 cents paid 60% of the 10 cents air mail rate. Since 75% prepayment was required, the card was sent by surface mail (7 cents).
Toronto to Pavina, May 28, 1969
Shortpaid for air conveyance and sent by surface mail at 7 cent UPU surface rate
Shortpaid 1 cents and Canada tax fraction 2/12 applied
No indication that the Italian post office charged the addressee postage due
b) From July 1, 1970
On July 1, 1971 the surface post card rates were abolished. The post card rate to all destinations was now 10 cents, the same as the air mail rate. Insufficiently prepaid cards regardless of the amount prepaid were now taxed and conveyed by air.
Pointe-Claire-Dorval to New Malden, England, August 22, 1971
10 cents international post card rate
Shortpaid 3 cents and Canada T marking 6/12
The numerator was correct, but the denominator should have been 15
The Canadian international letter rate increased from 12c to 15c on July 1, 1971
British 2p due handstamp
2p was the minimum amount charged from February 15, 1971 to December 31, 1975
The correct T fraction was applied to the short paid post card shown below mailed in 1973.
Wellington to South Benfleet, England, July 17, 1973
10 cents international post card rate
Shortpaid 2 cents and correctly taxed 4/15
Charged the minimum 2p by the British Post Office
Czechoslovakia
Minett to Prague, July 1973
10 cents international post card rate
Shortpaid 2 cents
The Canadian post office did not apply a T fraction (T4 indicated that 4 cents was due)
The Czechoslovak post office charged 2 Kcs postage due
Hong Kong
Winnipeg to Hong Kong, October 13, 1972
10 cents international post card rate
Shortpaid 5 cents
Canada Tax Fraction 10/15