In 1757, at the Sestroretsk arms plant began the redistribution of the old bronze cannons in copper coins. In 1763 specifically for the Empress in honor of this event was coined a few instances of dimes with the date "1757", but with the monogram of Catherine II, who ruled at this time. The only known specimen from the collections of P. V. Zubov kept in the State historical Museum in Moscow.
Photo from the book "Rare Russian coins XVIII - early XX centuries" From the collection of the numismatic Department of the State historical Museum.The obverse of the coin
shows the monogram of Catherine II, which is a letter "Е"(Catherine), and the Roman "II"(the second one). Upstairs the Imperial crown. The sides of the year, is divided into two parts - "17" and "57". Image is surrounded by two branches connected at the bottom with a bow.The reverse of the coin
depicts the coat of arms of the Russian Empire
in the second half of the XVIII century. The coat of arms double-headed eagle with raised wings, crowned by two Imperial crowns, above is the same crown but larger. Right Talon the eagle holds a scepter, the left - power. On the chest is placed a shield with the Moscow coat of arms: St. George on horseback slaying a serpentine dragon with wings. Moscow
coat of arms surrounded by chain of the order of Saint Apostle Andrey Pervozvannogo. Beneath the feet of the eagle are the letters indicating the place of coinage. At the bottom along the edge is a ribbon with the inscription - "ПЯТЬ • КОПЕЕКЪ"