History of Aviation, Rare Stamps and Postal History of the World, Part 3

Soviet Union

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Start price: $600

Buyer's premium:

1983, Academician Aleksandr Sidorenko, 4k multicolored, left sheet margin horizontal imperforated pair with control colored lines on selvage, excellent quality item, full OG, NH, VF, Est. $900-$1,200 , Sc. #5196 imp