A very nicely preserved quarter bolt.
Obverse: in the cord rim the eagle of the Russian Empire of the 1832 pattern, on the sides of its tail the initials of the mincmaster, in the outer rim the legend:
ЧИСТОГО СЕРЕБРА 1 ЗОЛОТНИК 5 1/4 ДОЛЕЙ;
Reverse: in a laurel and oak wreath crowned inscription:
*25*/КОПѢЕКЪ/1855/С.П.Б;