Bidspirit auction | Soviet Union - Die Proofs

Soviet Union - Die Proofs Selection - 1977, Postal Official and Postal Code, die proof of (4k) in brown representing a part of engraved design (stage proof), artist G. Komlev, engraver L. Mayorova, size 120x87mm, produced on wove paper without gum, VF and very rare, Est. $300-$400, Sc. # 4619