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 (though struck through 1867/8). 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 ..... (date unlisted); KM..... (under Netherlands). (RRR) RARE NGC AU Details