Russia
Nicholas I copper Pattern 3 Kopecks 1827-CПБ MS65 Brown NGC, St. Petersburg mint, Bitkin-915 (R3), Brekke-200 (R2), UZD-3258 (R2). Obv. Crowned double-headed eagle. Rev. Date and value. This issue is a pattern for the 1830-39 series. Even chocolate-brown patina, with boldly defined features and no significant flaws. A classic rarity, with no regular issue 3 Kopecks coined for this date and only a tiny number of patterns struck. This is the finest example certified, of only three total pieces, by NGC and PCGS combined.
Estimate: 8000-10000 USD