1860 AD., Russian Empire, Alexander II, Warsaw mint, 1 Kopek, KM Y 3.2.

Russian Empire, Czar Alexander II (1855-81), Warsaw mint, 1860 AD.,
1 Kopek (23 mm / 4,78 g), mintage 3.766.000 , plain edge,
Obv.: A / II , A -monogram surmounted by a crown, within it the letter-numeral II.
Rev.: КОПЕЙКА / 1860 / B.M. , value in Cyrillic letters surmounted by a crown, date and mintmark below.
KM Y 3.2 .