Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2
Lot 925:
Description
1982, 60th Anniversary of the Soviet Union, 12 sunken die proofs of (10k) in various colors, complete or part of the engraved design for each of six values, approximate size 100×111-120mm, artist Y. Ryakhovsky, printer’s markings at sides, produced on gummed paper, previously hinged, VF and with high probability unique assemblage, Est. $5,000-$6,000, Scott #591-96
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