Nicholas I. 1825-1855 1852 20 Kopecks 1852, St. Petersburg Mint, ПA. 4,09 g. Bitkin 341. Severin 3590. GM 37.5. Attractive toning. Very rare as a proof. Choice Proof. 20 копеек 1852, СПб МД, ПА. ...

Part I: Russian Coins & Medals Nicholas I, 1825-1855 Commemoratives 20 Kopecks 1852 CПБ-ПA. Bit 341, Sev 3590, Uzd 1698. Authenticated and graded by PCGS MS 66 Gem brilliant uncirculated