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, Mordovian Autonomous Republic, die proof of 4k in carmine (issued color), artist Y. Kosorukov, size 89x120mm, printed on wove paper, no gum as issued, NH, VF and very rare, Est. $500-$600,Scott #4806