Russia
Peter I (The Great) Rouble 1721 К AU53 NGC, Kadashevsky mint, Diakov-1142 (R), Bitkin 481/487, Giel 10, Petr 7 (3 Rub). Obv. Laureate, armored, and draped bust right. Rev. Crowned double-headed Imperial eagle with sword and scepter. Well struck, with rose-gray patina over lustrous surfaces and only a few minor imperfections. Very scarce in this condition.
Estimate: 5000-7000 USD