AR Tetradrachm [17,43 gm, 25,50 mm]. Struck circa 450-440 BC. Charioteer driving quadriga right; above, Nike flying right, crowning hoses; in exergue, ketos right / Head of Arethousa right, wearing tainia; four dolphins around. Boehringer Series XVIb, 570 (V286/R391); BMC 94 (same dies). EF.