The coin is minted from copper were issued from 1849 to 1855. The obverse and reverse sides have a protruding on the circumference of the piping.
The obverse of the coin shows the monogram of Nicholas I (the large stylized letter "Н" at the bottom of Roman numeral "I" above the letter "Н"great Imperial crown).
On the coin reverse in the middle of the specified par - "ПОЛУШКА" on top of a large Imperial crown, below the year of issue "1853.", below - letters "Е.М."(Yekaterinburg coin).
Species of mite sample of 1849: 1849-1855 (EM);
1850-1853 (VM) - Warsaw chasing.