Watch List notes:

SICILY. Syracuse. Second Democracy, 466-405 BC. Hemilitra (Silver, 9 mm, 0.41 g), circa 425-420 BC. Head of Arethusa to left, her hair bound in a sakkos. Rev. Wheel of four spokes containing six pellets. Boehringer 639. Buceti 335 (same dies). Rare. Clear, well-centered and with a dark patina as found. Minor marks, otherwise, about extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions, ex Münzen und Medaillen FPL 505, November/December 1987, 49.