Watch List notes:

FINLAND: Nicholas II, 1894-1917, AR 50 penniä, 1916-S, KM-2.3, mint error, "double struck, 2nd strike 60% off-center", NGC graded MS65, RRR. The coin was struck once in the normal fashion, then slipped partly off the press and was struck a second time!

Estimate: 500-600 USD