A very nice example of this issue.
The details are well preserved.
Obverse: the eagle of the Russian Empire; below it, the mint mark “M-W” separated by the eagle’s tail;
Reverse: inscription along the edge: ЧИСТAГО СЕРЕБРА 60 3/4 ДОЛИ., with a central inscription in 5 lines:
15/КОПЪЕКЪ/1/zloty./1838.;
