Poland
Alexander I of Russia gold 25 Zlotych 1823-IB VF25 NGC, Warsaw Mint, Bitkin-816 (R2), Fr-108, KM-C102a. Obv. Bust of Alexander I right. Rev. Crowned double-headed eagle with date and value. Even circulation, with moderate marks consistent with the grade. An extremely rare issue with a tiny mintage of only 479 pieces.
Estimate: 5000-7000 USD