Sicily.   Syracuse.   Dionysios I to Dionysios II.     AE Hemilitron, c. 375-344 BC.   Obv.    ΣYPA. Head of Athena left, wearing laureate Corinthian helmet.        Rev.   Bridled hippocamp swimming left.     CNS II 34; HGC 2 1456; SNG ANS 435-446.     7.9 g.   20 mm.        Dark green patina, minor roughness.    Good VF/About EF.