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: $250

Buyer's premium:

1932 (August 29-September 1), 5th SAF cover from Moscow to Bogota, franked by three airship stamps, Friedrichshafen connection, uprated by 3 Colombian adhesives (2 not cancelled), violet confirmation cachet, SCADTA label is alongside, Pernambuco ”1.IX.32” drop and two arrival markings on reverse, mostly VF, Sieger #171, Est. $500-$600, Scott #C21-23