Nicholas I (1825-55), medallic Rouble, 1841, by Gube, for the marriage of the future Alexander II to Maria of Hesse-Darmstadt, conjoined busts left, rev. monogram on crowned cartouche, with Hymen and Cupid supporters, m.m. on left, mintmaster's initials (correctly spelt) NG below, edge milled (Dav.288A; Sev.3370), good very fine, rare