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capex 87 capex 78 overprinted capex 87

Canada Special Event Cover #CPEC3 - CAPEX 87 - CAPEX 78 overprinted CAPEX 87 (1987)

SKU: COT-CPEC03

Description

Canada 1987 Philatelic Exhibition Card, prepared by Ashton-Potter Limited, to demonstrate the colour progression in the production of postage stamps by offset lithography.