Russia
Nicholas I Rouble 1850 CПБ-ПA, St Petersburg mint, Bitkin-226, KM-C168.1, MS66 NGC. Obv. Crowned double-headed Imperial eagle in circle. Rev. Crowned date and value in wreath. A striking example, with shimmering luster beneath light golden toning. The surfaces are free of notable flaws, and the only imperfections revealed with close examination are tiny edge marks that do not detract from the splendid appearance of this Gem Rouble.
Estimate: 4000-5000 USD