Russia
Catherine II gold 10 Roubles 1780-СПБ F15 PCGS, St. Petersburg mint, KM-C79b, Fr-129b, Bitkin-38. Obv. Crowned and draped bust right. Rev. Crowned cruciform coats-of-arms around imperial double eagle and with date in angles. Even wear, but a pleasing example of the type.
Estimate: 4500-6000 USD