A beautiful circular piece.
Patina, tarnish.
On the reverse, initials of Fyodor Lesnikov - St. Petersburg mincmaster from 1773-1779.
Obverse: bust of the Tsarina to the right, below her the mint mark СПБ, in the rim the legend:
Б-М-ЕКАТЕРИНА-II-IМП-IСАМОД-ВСЕРОС;
Reverse: eagle of the Russian Empire, on the sides of the tail initials ФЛ, in the rim legend:
1774 МОНЕТА - РУБЛЬ-;