Watch List notes:

CALABRIA. Tarentum. Circa 325-280 BC. Litra (Silver, 12 mm, 0.69 g, 3 h). Cockle shell. Rev. Dolphin swimming to left; below, race torch. HN III 979. Jameson 176 (this coin). Vlasto 1510. Sharply struck, attractive and nicely toned. Minor flan crack, otherwise, extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions and from the collections of Leo Mildenberg, Robert Jameson and Sir Arthur Evans.