Watch List notes:

CALABRIA. Tarentum. Circa 325-280 BC. Hemilitra (Silver, 10 mm, 0.64 g, 2 h). Cockle shell. Rev. Taras, holding kantharos in his right hand and spindle in his left; in the field to right, monogram of ΑΡ; below, Μ. HN III -. Vlasto 1603. Rare. Clear and lightly toned. Good very fine.
From the "Collection sans Pareille" of Ancient Greek Fractions.