Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2

Soviet Union 1941-91

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Start price: $75

Buyer's premium:

1950, 75th Anniversary of the UPU, perforated and imperforate sets of two and Soviet Air Routes 60k brown, five stamps used on air mail registered cover from Moscow to Bulgaria, all appropriate markings and Sofia arrival ds, mostly VF, Est. $150-$200, Scott #1392-93, a, C84