Russia
Peter I Rouble (1721) К, Kadashevsky mint, Bitkin-473 (R), Diakov-20 (R1), KM157.5, AU55 NGC. Obv. Laureate bust right. Rev. Crowned double-headed Imperial eagle with date and value. Bright and lustrous, with light golden toning and full underlying luster. Very rare in this condition.
Estimate: 17000-21000 USD