Watch List notes:

SICILY, Halykiai. Circa 390-370 BC. Æ (16mm, 3.38 g, 7h). Acheloios Mazaro as man-headed bull standing left / Boar left. Lazzarini, Monetazione, Series III, Em. 1; MSP I 28 (this coin illustrated); CNS 45 (Himera?); HGC 2, 493 (Himeraia?). Fine, brown patina, areas of stabilized corrosion. Rare.

Ex Edgar L. Owen Collection (Classical Numismatic Group Electronic Auction 367, 27 January 2016), lot 55.