Russia
Nicholas I 25 Kopecks 1839 CПБ-HГ MS62 NGC, St. Petersburg mint, Bitkin-282, KM-C166.1. Full, brilliant mint luster, with boldly struck devices and only a few tiny, barely noticeable, handling marks. A conditionally rare issue in Mint State, with only three pieces certified in Uncirculated by NGC and PCGS combined, with only a single example finer than this piece.
Estimate: 800-1000 USD