Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 2

Soviet Union - Large Die Proof

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Start price: $1,000

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1976, History of Aviation, 3k-16k, complete set of five die proofs in gray black, artist E. Aniskin with group of engravers, approximate size 90x120mm, each one with printer’s markings at sides, minor usual paper bends, no gum as produced, VF and very rare, especially in complete set, Est. $2,000-$2,500, Scott #4500-04