Reverse The center of the reverse is occupied by the coat of arms of the Russian Empire—a double-headed eagle, both heads of which bear crowns. A third, larger crown is positioned above and between them. On the eagle's breast is the coat of arms of Moscow—a shield depicting St. George the Victorious on horseback, slaying a serpent with a long spear (the serpent's head is to the right). The shield is surrounded by the chain of the Order of St. Andrew the Apostle the First-Called. In its right talon, the eagle holds a scepter, and in its left, an orb. Below the right talon is the letter 'S', and below the left, the letter 'A'. These are the initials of mintmaster Stepan Afanasyev. Above the eagle is the year of mintage—'1770'. Around the eagle, facing inward, is the inscription: МОНЕТА•РУБЛЬ•
Obverse The center of the obverse features a right-facing profile portrait of the Russian Empress Catherine II. On the lower left part of the portrait are the letters 'T•I•', indicating the medallist Timofey Ivanov. At the bottom, beneath the portrait, is the abbreviation 'С П Б' (Saint Petersburg Mint). Along the edge, in an arc from the lower left, runs the inscription: Б•М•ЕКАТЕРИНА•II•IМП•IСАМОД•ВСЕРОСС•