Russia
Peter I Rouble (1721), Kadashevsky mint, Bitkin-447 (R), Diakov-15 (R), KM157.5, AU53 NGC. Obv. Laureate bust right. Rev. Crowned double-headed Imperial eagle with date and value. Near mark-free surfaces beneath light golden toning, with abundant bright luster remaining. A lovely example of this very elusive issue.
Estimate: 10000-12000 USD