Russia
Alexander I Rouble 1823 СПБ-ПД MS64 PCGS, St. Petersburg mint, Bitkin-137, KM-C130. Obv. Crowned double-headed Imperial eagle with date. Rev. Crowned four-line inscription in wreath. Fully brilliant, silver-white mint luster, with nicely defined devices. The only noticeable imperfections are three tiny marks in the upper left reverse field. Superior eye-appeal for a Rouble of this type. No examples have been certified finer by PCGS, or NGC.
Estimate: 3500-4500 USD