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On November 21, 1963, the General Assembly of the United Nations adopted a resolution whereby the year 1965, the twentieth year of the establishment of the United Nations, would be designated as International Co-operation Year. The Assembly called upon all member countries to publicize the activities of international co-operation in which they were engaged and to draw up plans to promote the objectives of International Co-operation Year. Canada was a member of the preparatory committee for this project and a member of the United Nations Committee for I.C.Y.
The Canada Post Office marked the achievements of international co-operation with a slogan cancellation and the release of the I.C.Y. stamp on March 3, 1965. The stamp was designed by Harvey Thomas Prosser.
a) Slogan
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The I.C.Y. slogan was used at Vancouver, Halifax, Montreal, Ottawa, Toronto, and Winnipeg.
b) I.C.Y. Stamp
Essays
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National Archives of Canada
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National Archives of Canada
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National Archives of Canada
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National Archives of Canada
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National Archives of Canada
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National Archives of Canada
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National Archives of Canada
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National Archives of Canada
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National Archives of Canada
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National Archives of Canada
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National Archives of Canada
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National Archives of Canada
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National Archives of Canada
First Day Covers
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Canada Post Office Announcement Cover
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Canadian Post Office first day cover. The CPO used "Rosecraft" envelopes to announce the release of the I.C.Y. stamp. This announcement was mailed to Portugal.
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Overseas Mailers
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Usages
Surface Letter to the US
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Windsor to Evanston, Ill., March 29, 1965
5 cents surface letter rate
International Air Mail
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Edmonton to Ulverston, England, November 26, 1965
15 cents air mail letter rate to Great Britain
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Quebec to Freden/leine, Germany, March 22, 1966
15 cents air mail letter rate to Europe