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

Soviet Union - Die Proofs Selection

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Start price: $250

Buyer's premium:

1980, Georg Ots, Estonian Singer, die proof of 4k in slate blue (issued color), artists P. Lukhtein and V. Trager, engraver V. Smirnov, size 90x120mm, printer’s markings at four sides, no gum as issued, VF, Est. $400-$500, Scott #4818