Watch List notes:

CALABRIA. Tarentum. Circa 280-228 BC. Diobol (Silver, 12 mm, 1.01 g, 6 h). Head of Athena, three-quarter facing to right, wearing triple-crested Attic helmet adorned with Skylla; to left and right of the top crest, Ε - Υ. Rev. ΤΑΡΑ[ΝΤΙ] Herakles, bare-headed, standing to right, battling the Nemean lion; in the field to left, club downwards above an amphora; between Herakles' legs, ΕΥΦ. HN III 1062. Vlasto 1437/8. Sharp, lightly toned and most attractive. Good extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions.

This facing head of Athena, wearing her triple-crested helmet adorned with Skylla, is a real tour-de-force, a fitting parallel to the head of Herakles on, above, lot 31.