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

Worldwide Air Post Stamps and Postal History - Russia and Soviet Union

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Start price: $150

Buyer's premium:

1933, Stratostat USSR-1, 5k, 10k and 20k, complete set of three, full OG, NH, VF, C.v. $463, Est. $250-$300, Scott #C37-39