Russia
Nicholas II gold 10 Roubles 1899 ЭБ MS63 NGC, St. Petersburg mint, Bitkin-5, Fr-179. Obv. Bust left. Rev. Crowned double-headed Imperial eagle with date and value. Bright mint luster, with only a few very light marks. By far, the scarcest of the 1899 10 Rouble varieties.
Estimate: 2000-2500 USD