Russia, Nicholaus I, Ruble 1829 НГ

A natural circulation ruble of a well-liked issue.

Obverse: eagle of the Russian Empire of the 1825 pattern, under it the initials НГ, in the rim the legend:
1829 ГОДА. МОНЕТА РУБЛЬ;

Reverse: in a laurel and oak wreath crowned information about the mint ordnance:
ЧИСТАГО/СЕРЕБРА/4 ЗОЛОТН./21 ДОЛЯ./С.П.Б.;