Watch List notes:

MYSIA, Lampsakos. Circa 500-450 BC. AR Drachm (18mm, 5.01 g, 3h). Diademed Janiform female head / Head of Athena left, wearing Corinthian helmet with HΓ monogram on bowl; all within incuse square. Baldwin, Lampsakos, Group A.II (unlisted control mark); SNG BN 1121-5 var. (control mark); CNG E-249, lot 125 = NAC 54, lot 830 (same dies). Lightly toned, some roughness, light cleaning scratches. VF. Very rare with this control mark.

From the Daniel Koppersmith Collection. Ex Classical Numismatic Group Electronic Auction 288 (10 October 2012), lot 196.