Canada Airmail Special Delivery - Complete 1942-1947 Mint Set of 4

Featuring a Trans-Canada Lockheed Super Electra and a Douglas DC-4 Transatlantic Mail Plane, these 4 beautifully engraved stamps are all of Canada's Airmail Special Delivery stamps. An error on the 4-engine DC-4 stamp resulted in a new design where the accent over the second 'E' in "EXPRES" was corrected. (#CE1-4)