Watch List notes:

CALABRIA. Tarentum. Circa 280-228 BC. Diobol (Silver, 12 mm, 1.01 g, 10 h). Head of Athena, wearing crested Attic helmet adorned with Skylla. Rev. Infant Herakles battling two serpents; above to left, monogram of ΤΑΡ; in exergue, monogram ΛΕ. HN III 1068. Vlasto 1460-1461 var. Sharp and bright. Struck on a faulty flan, otherwise, extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions, ex Numismatica Ars Classica 8, 3 April 1995, 43.