Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 3

Soviet Union Stamps of 1924-40

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Start price: $200

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Description

1933, Leningrad Philatelic Exhibition, red surcharges 30k on 15k black brown and 70k on 35k ultra, complete set of two, nicely centered and post office fresh, full OG, NH, VF, C.v. $507.50, Est. $300-$400 , Sc. #487-88