Russia
Alexander II silver Proof 10 Kopecks 1858 CПБ-ФБ, St. Petersburg mint, Bitkin-65, KM-C164.1, PR64 NGC. Obv. Crowned double-headed Imperial eagle. Rev. Crowned date and value in wreath. Deeply mirrored fields, with moderately frosted devices. The flaws are few, and minuscule, and the cameo contrast is noticeable. Very scarce in this Choice Proof condition.
Estimate: 1250-1500 USD