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

Soviet Union - Die Proofs Selection

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Start price: $200

Buyer's premium:

1977, Postal Official and Mail Delivery, die proof of 4k in brown (issued in brown and black), engraved part of the design, artist G. Komlev, engraver I. Mokrousov, printer’s markings at sides, size 118x87mm, produced on wove paper without gum, VF and very rare, Est. $300-$400, Sc. # 4623