Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 1
Lot 39:
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
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