The Canadian International Philatelic Exhibition, CAPEX 78, was held at the Canadian National Exhibition Grounds in Toronto from June 9 to 18, 1978. This was the nation's second international stamp exhibition, the first having been held in 1951. CAPEX 78 will commemorate the centennial of Canada's entry into the Universal Postal Union.
The Official First Day Cover (OFDC) for the stamp issued by Canada Post.
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