Russia
U.S.S.R. Proof 20 Kopecks 1976, KM-Y132, PR65 PCGS. Obv. National Arms. Rev. Date and value within wheat sprigs. A bit of Cameo contrast, with a sharp strike, mirrored fields, and only a few tiny spots. Very rare and unlisted in Proof.
Estimate: 1000-1200 USD