Russia
Nicholas I silver 5 Kopecks 1845 CПБ-КБ MS66 NGC, St. Petersburg mint, Bitkin-399, KM-C163. Obv. Crowned double-headed Imperial eagle. Rev. Crowned date and value in wreath. Fully struck, with light golden toning over frosty, lustrous surfaces. None have been certified finer by NGC or PCGS.
Estimate: 800-1000 USD