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: $1,500

Buyer's premium:

1982, Public Transportation in 19th and 20th Centuries, (4k)-(32k), complete set of six sunken die stage proofs (engraved part of the design), artist V. Karasev, each one with printer’s markings at sides, approximate size 100x120mm, 6k with minor changes compare to issued stamp, printed on stamp gummed paper, traces of hinges, VF and extremely rare, Est. $3,000-$3,500, Scott #5001-06