Russia
Nicholas I Rouble 1848 CПБ-HI MS64 NGC, St. Petersburg mint, Bitkin-218, Severin-3543. Obv. Crowned double-headed Imperial eagle. Crowned date and value in wreath. Toned in mottled shades of ruset and gray, with near-perfect strike and surfaces free of all but the most minute marks.
Estimate: 2500-3000 USD