Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Canada - 1927, Yukon Airways and Exploration Co. Ltd, reverse die proof of 25c in black, printed on thick card, size 99x76mm, nice and fresh, no gum as produced, NH, VF, C.v. CAD $450, Est. $200-$240 , Sc. #CL42