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: $400

Buyer's premium:

1935, Moscow – San Francisco Flight, red surcharge 1r on 10k dark brown, small ”f” in San Francisco variety (position 7), large part of OG (gum lost at bottom left corner), VF, Soviet Philatelic guarantee hs, V. Zagorsky certificate, C.v. $1,500, Est. $700-$800, Scott #C68b