c. 474-450 BC. Tetradrachm, 17.29g (3h). Obv: Charioteer driving walking quadriga right, holding kentron and reins; Nike above, crowning horses, ketos in exergue. Rx: Head of Arethusa right, wearing earring and necklace, ΣVRΑΚΟΣΙΟΝ and four dolphins around. Boehringer 512. Ex Roma 3, 31 March 2012, lot 71. Purchased from Spink, 1 April 1966.