Reverse In the central part, a two-line inscription: IEDEN GROSZ. Below the inscription is the year of mintage 1841.
Obverse The center of the obverse is occupied by a double-headed eagle, the coat of arms of the Russian Empire. Both eagle heads bear crowns, and a third, larger crown is between them. All three crowns are connected by a ribbon. On the eagle's breast is the coat of arms of Moscow - a shield with St. George the Victorious on horseback, slaying a serpent with a long spear (the serpent's head is on the right). Around the shield is the chain of the Order of St. Andrew the Apostle the First-Called. Coats of arms on the wings: Left wing: Polish, Taurida, Finnish. Right wing: Kazan, Astrakhan, Siberian. In the right talon is a scepter, and above it the letter 'M'. In the left talon is an orb, and above it the letter 'W'. Together the letters indicate the Warsaw Mint.