Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 3

Soviet Union

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Start price: $150

Buyer's premium:

1933, Leningrad Philatelic Exhibition, red surcharges 30k/15k black brown and 70k/35k ultra, complete set of two, nice and fresh, full OG, NH, VF, C.v. $508, Scott #487-88