Netherlands 1 Ducat 1818 St. Petersburg Mint. Imitating a gold Ducat of Willem I Rare Russia 1 Ducat 1818. Russian Empire time of Alexander I (1801-1825). AV 1 Ducat. In the types of the Netherlands trade coinage. St. Petersburg (with the marks of Utrecht) dated 1818. PARVAE CRESCUNT• CONCORDIA RES knight standing right holding sword and bundle of arrows; sword and caduceus (privy mark and mintmark) across upper fields date across lower fields / MO• AUR• REG• BELGII AD LEGEM IMPERII• inscribed within ornamented cartouche. Gold. Friedberg 161; Bit-19 (R) RARE NGC AU 53 ONLY 5 COIN IN HIGHER GRADE