Watch List notes:

CALABRIA. Tarentum. Circa 325-280 BC. Trihemitetartemorion (Silver, 8 mm, 0.28 g). Two crescents back to back; above and below, pellet; in the crescent on the right, Χ. Rev. Two crescents back to back; above and below, pellet. HN III 982. Vlasto 1758 ff. var. (apparently none known with the Χ in the crescent). Clear, toned and well-struck. Extremely fine.
From the "Collection sans Pareille" of Ancient Greek Fractions, ex Münzen und Medaillen FPL 505, November-December 1987, 18.