Russia
Nicholas I Proof Rouble 1844 CПБ-КБ, Crowned double-headed Imperial eagle / Crowned date and value in wreath, Bitkin 205, UZD 1622, Proof 64 NGC. The strike is near-flawless and the mirrored surfaces display light russet toning. A few light marks are noted.
Estimate: 8000-10000 USD