Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 1
Lot 180:
AVIATION PIONEERS AND POLAR RESEARCHERS: 1934-36(c), Heroes of Soviet Union Alexander Belyakov, Mikhail Vodopyanov and Ivan Papanin, Arctic Aviator Yakov Moshkovsky and Arctic Explorer Georgy Ushakov, 7 black-and-white or real photo postcards, very fresh, unused, VF and scarce, printing run of 10,000-20,000 copies, Est. $250-$300
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