Russia, Nicholas I, Rouble 1853 HI

Very attractive glossy piece in uneven patina.

Obverse: eagle of the Empire of the 1844 pattern, between its legs and tail the initials HI, in a rope border, in the outer border an inscription beginning with a rosette:
ЧИСТAГО СЕРЕБРА 4 ЗОЛОТНИКА 21 ДОЛЯ;

Reverse: in a laurel and oak wreath crowned inscription:
MOHETA/РУБЛЬ/1853/СПБ;