Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 1
Lot 151:
NORTH POLE FLIGHTS AND RELATED ITEMS: 1938-61, 12 mainly illustrated covers, representing registered cover from Leningrad to NYC of 1938, cancellations of North Pole Stations No.7, 8 and 9, North Pole souvenir sheet on registered cover to Vienna and etc., fresh quality, VF, Est. $300-$400
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