Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1

Worldwide Air Post Stamps and Postal History - Soviet Union - Zeppelin Flights

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Start price: $75

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1931 (July 25-27), North Pole Flight registered postcard franked by Ice-Breaker ”Malygin” imperforate stamps of 30k and 1r, tied by Leningrad (25.VII) and bearing Ice-Breaker (27.VII) special date stamps, red confirmation cachet and all appropriate markings, VF, Sieger #120Ba, Scott #C26, C28