Poland under Russia, Nicholas I, 10 groschen 1840 - NGC MS66

A beautifully preserved, specimen example of a 10-penny coin.

A coin recognized with the second highest grade ever given, in NGC grading, where only 2 out of over 300 graded coins received MS67.

Obverse: eagle, at its tail the mint's initials M-W;

Reverse: in a laurel and oak wreath the inscription:
10/GROSZY/1840;