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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
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiBIJuCbDcQFOMs5OIZXHLOapUErmOFCKzThXuPCmAFjd66ecXRUHyxz3ran6eZY00NcJUVoaAflE1EGSb2mb92OSIqIg4y3Zw-eIGP4ptLfOGAWQXMFlUl2VcPTeUcsPFj5pNFyxSsUk4h/s400/1965+ICY+Slogan+closeup.jpg)
The I.C.Y. slogan was used at Vancouver, Halifax, Montreal, Ottawa, Toronto, and Winnipeg.
b) I.C.Y. Stamp
Essays
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh0sPQMlpB0_pXLj0J0hpJPL-WAtbjg12P-EuiJ58LRFscy_ra95YOUjsiPFx6L5FbqX5wfETrNKbNRKU85gAg80Y0bEd2enfMVErMQT2u2lpG35G-dQNDCBg2_0-CcHIqbDa3dRprqEnk/s320/ICY+1.jpg)
National Archives of Canada
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National Archives of Canada
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National Archives of Canada
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgZfiAOvh5PEoCn2IFVe5adLtZ56IwDNb4M42tr_5Xdq-okGOGJzupQ5dos_qZxq7Rw4K2jrGOHp8mCxGcPEsIlMXFdRe2pW2BG2GlFnSnwGFSHs7x4zJfHxtYFmnb4dGm4Xk-czgFpAWE/s320/ICY+5.jpg)
National Archives of Canada
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgpkK-u5daPKMEZKJIVFXb83Yvf9zrrp3njNexIFaUD9s27qx7TvYq8j-ecEbSenKpkv3Qnv2al4lO_ZzsUs-7LEQ_Cn42pejZ-Oe9qCmTDFXtiMXqqx53PPcIFpMMXZF4FPHmyx-piPGQ/s320/ICY+6.jpg)
National Archives of Canada
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National Archives of Canada
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National Archives of Canada
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjSO06SZKXnLGl1H8u5CLecJ0YlZOk51cM6H1XsKo9o3Ouh0Sd8QDtub1JVXnJS6x87A0qqpiEV6yRomg-XAq7f3YAJNE4MvXhiO4dvuRVuzvm0m7-WpCojAJepTz2-nkJYezjCdI9xkc4/s320/ICY+15.jpg)
National Archives of Canada
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National Archives of Canada
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National Archives of Canada
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj2qtEklJNWTO5-Nll1yZtVUNhqoU_Baty2DxBzNyo2S1AsX1FWVUW79ip94D2u8i1RDGHRf8fHi_UyG1jnpnPuKOqUzh48So-kLHwb61XpH_waQOuPT07oXJlrvL-NTreL0VC-QdTCpQ4/s320/ICY+11.jpg)
National Archives of Canada
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiInzNvs2PpfNG8Ln79KojRIvNN_Qdd6Ek95rxr0LVmod66MGjIsq0bebq5H14uxXYnpVv4VBeJBxGo-az6hL3maUEcHTBOwYAk5wrgjnmvZRMnlwlhmWu4tCW95eNgh3IhW_4q8wcIiNE/s320/ICY+12.jpg)
National Archives of Canada
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj0kY0WRpy06TjXy02TDAYjBgyJsTHAYTw20TD189b-9V6fpI3YWkOmX79mzIzQ0Bn53BDERr-DkMoq5pQeRf9UbDZ-E6PeoxKrMV_MDRsdWLB1P1rOtxMnzY1yC2YsMezYeaSbPPygIjU/s320/ICY+13.jpg)
National Archives of Canada
First Day Covers
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiIKyGfycbp-BQqDd0r58xkA3R3MCkKsimUW9aRfafEKB8LuOoy3hiYK5-2soYdLIm6E1-jPHT1RX-VrACDMKEvitY53GAwGPLI61n6zMMXAkfFNxzYPLeHcGB6Cm2818MIpB49aCsruvuV/s640/1965+International+Co-operation+Year+10.jpg)
Canada Post Office Announcement Cover
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhZY1GSFocLgcB5i2lM07n8Faw3_NTOGYpdZE6YcG6pTudpNzlmYvu5VH-O5VY6j1EP4KAFnYEDG2dc38JD9GV6vAdQUCduOXuxtqfIqZ4ySsCnok6FsKybLDdPU2Z8p4pyf7Rjavo68XZ3/s640/1965+International+Co-operation+Year+11.jpg)
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.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgZ9ywNRtXSGgS7dOmdp_U-KhT4WI_KUAB2LxymnxkHPANVYIh9Yg2SE2Ub74AvEPVVFQ6Y6UNnXqkuMZcxKoIM1LNgTHVSWXb14lFhiM3Eg1Z36mfnPDt2lJeYhQC-SbbonQQqEvNScLwK/s640/1965+International+Co-operation+Year+9.jpg)
Overseas Mailers
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEggfCAReJM5xiRZgK9NdmAg3wP3p8x27yU8mwyDRyOmgI4NsRR4TEVxxjzTRavFXJ6OzoOV15gt71_FCQvGitZgdctT1OdHtGgR9W7ysvtSG0r1q1CxlvIOx_zmEJ_tEmXZRAG4hyphenhyphenVpY0mH/s640/1965+International+Co-operation+Year+7.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjvV4bubMKXytxffWzAjr6Fg1d_3DIhlfv8rrjfBq13O-W4qiK0K042ybiiMvxEqegCLXQ0eayz8qdelDIo92QqfXjufB2H_PhDnqJD1c1fv0gL8vwBdSk-U5gOnnyFKHZp-EhXFpWpnfFe/s400/1965+International+Co-operation+Year+8.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgdiXXvqDMgCTdeIRDDZB1m9PND1wCMdp1VNqpALat_MtUxd1DN2V_7sswB9QoKIP0niNqa5ZFHmYsRQpjBm41ufnCPCj3w_wdahUEz3sfOKkT5om0hH2wekeBzl4-Sus0oQdilrZuVkl2y/s640/1965+International+Co-operation+Year+6.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTXQuvOfn3zFJgV5Di6dxtqDxeWF6_xEEO1UnIx125iHqcsiSLOH6EkXGMKOHYb4y2aF4Td7W9c8fZ0QiJ6c1Kewf9N_bH7V03fATnD8ZHMquhukZPZ7QOpoPydaMwVNep4SyYwZc9R3Ij/s640/1965+International+Co-operation+Year+5.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhrsHJDRPRCLowkBL7BFFMlCUGFKvlJulhq7KVgf597g96mBdLjt8blL1x4ZZSk_q4FcBeLB_jc3Y63tsmdnQpoN-u_2Jm7Jo9wJYllNbyWYvOFSkY3663t7kcI60Zm9W7tUxDfOyl3wgU0/s640/1965+International+Co-operation+Year+3.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtX55Fk6Y9uB9Tj8sRbm5AOMG3R2gZmPTH_0CWNt7pyVF6ipNRKfebsWVbRBPKkaWkHSj2vIx83H4IT8TEt56WZKcNXiJTd0QOyoEQvc_60qmw7lV-Z407Rbpm5wH_hez9ckoOYib1jYwy/s640/1965+International+Co-operation+Year+2.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhjuFPj0NO7dJXbMFnHQF1N2l_krsQK4RW5tMYy-jmDjOy8uudkrDovismjnVuTOZ-bQ-yBUzhRv8uinWGodNgoKBG5RYWYPAUwkYE7HnKfGHW6jzJhTBm1iR-EUo5dnAKYUAZGW_Gv38i/s640/1965+International+Co-operation+Year+1.jpg)
Usages
Surface Letter to the US
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgtnI0II8mEVIVSwKwClTtLUHX9WuUxf0Pg0o7wNMdZZni2pefWrusxzUiL6_eGmLi3d7L90usXL3VBwN6anMymiZAl2M6sRa7Rt8Oc85t9rEFpBPkI_DvtJMhIKkY2GIClutqiGMG5wxBi/s640/1965+International+Co-operation+Year+12.jpg)
Windsor to Evanston, Ill., March 29, 1965
5 cents surface letter rate
International Air Mail
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpKD-TDqYk1DRcuE4hg5aemK5_Z-6sCGOMCpEOOYzfz6tfqsxwrRAceOzBo150_xIv2UQeVKXMFJY2iT_1UP-T9A1WxMFhAkGKKNPFzRjf1ZlCLHaXqY4UUbBfdlQkI1PqfOP2vJnWFrFF/s640/1965+International+Co-operation+Year+4.jpg)
Edmonton to Ulverston, England, November 26, 1965
15 cents air mail letter rate to Great Britain
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiz5WwWNduE8q4iNSLD4UaeH0TavkMvH6zEx1URU59LFFcV2TgA-aOJIbHHkfAu_d7o6qJ_G6nGailTFO4oL9Kx-9uEB9Fn8Z90KSXEueu9tImbI3zqKB4o-I9zhwoX3kpOlTgdjBzRV9ju/s640/1965+International+Co-operation+Year+13.jpg)
Quebec to Freden/leine, Germany, March 22, 1966
15 cents air mail letter rate to Europe