Russia
Nicholas I Rouble 1831 CПБ-HГ AU58 PCGS, St. Petersburg mint, KM-C161, Bitkin-111 (R), open 2 reverse. Obv. Crowned double-headed Imperial eagle, with wings down, date and vale in legend. Rev. Crowned four-line inscription in wreath. Boldly struck, with slate-gray toning in the central areas, deepening to a richer charcoal color around the peripheries.
Estimate: 700-900 USD