Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 3

Soviet Union

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Start price: $250

Buyer's premium:

1978, Pokrova-on-Nerl’ Church, 10k multicolored, printed on ordinary paper without lacquered coating, top left corner margin block of four, full OG, NH, VF and scarce multiple, a common block is added for comparison, Est. $400-$500, Sc. # 4710 var