Russia
Catherine I Rouble 1727 AU53 NGC, Red mint, Bitkin-50 (R), KM177.1. Obv. Bust right. Rev. Crowned double-headed Imperial eagle with date and value. Well struck for the issue, with traces of luster beneath slate-gray patina and light flan flaws. Variety with two dots under the eagle's tail. Rare in this condition.
Estimate: 6000-7000 USD