Coins of this type with the dual denomination was produced from 1834 to 1841 only at the Warsaw mint. Used in the monetary circulation of the Kingdom of Poland before the introduction on the territory of the Russian coins of local issue.The obverse of the coin
depicts the State Emblem of the Russian Empire
in 1830. The coat of arms double-headed eagle crowned with two Imperial crowns, above is the same crown but larger. Right Talon the eagle holds a scepter, the left - power. Placed on the breast 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. Lifted up on the wings of an eagle located the coats of arms of the six kingdoms (three on each wing). On the left the arms of the kingdoms: Kazan, Astrakhan and Siberian. On the right the arms of the kingdoms of Poland, Tauric Chersonesos and the Grand Duchy of Finland. To the left of the tail - the letter "M" the right - letter "W"(Mennica Warszawska, Warsaw, coin production).The reverse of the coin
, nominal value - "30 КОПЕЕКЪ 2 ZLOTE." below the date "1838.". On a circle the inscription: "ЧИСТАГО СЕРЕБРА 1 ЗОЛ. 25 1/2 ДОЛИ."
The circumference of the front and back sides, with a rim of inward-facing teeth.