Watch List notes:

SICILY, Syracuse. Hieron I. 478-466 BC. AR Tetradrachm (25mm, 16.83 g, 11h). Struck circa 475-470 BC. Charioteer driving quadriga right; above, Nike flying right, crowning horses / Diademed head of Arethousa right; four dolphins around. Boehringer Series XIId, 348 (V171/R244); HGC 2, 1307. VF, toned.

From the Dr. Lawrence D. Sporty Collection. Ex vAuctions 262 (14 April 2011), lot 7.