Russia
Nicholas I Poltina (1/2 Rouble) 1831 CПБ-HГ AU55 NGC, St. Petersburg mint, Bitkin-122, Severin-2976. Obv. Crowned double-headed Imperial eagle, wings down, with date and value. Rev. Crowned four-line inscription in wreath. Moderately abraded, with ash-gray toning and abundant remaining underlying luster.
Estimate: 1000-1500 USD