Watch List notes:

Sicily. Syracuse. Second Democracy, 466-405 BC. Tetradrachm (Silver, 27 mm, 16.95 g, 3 h), c. 450. Charioteer driving quadriga walking to right, holding goad in his right hand and the reins in both; above, Nike flying right to crown the horses; in exergue, ketos to right. Rev. ΣΥRΑΚΟΣΙ - Ο - Ν Head of Arethusa to right, wearing a broad hair band, a crescent earring and a pearl necklace between two simple torcs; around, four dolphins swimming to right. Basel 439 (same dies). Boehringer 533 (V273/R374). SNG ANS 171 (same dies). A very attractive piece, struck on a broad flan and nicely toned. Extremely fine.
From the Prospero Collection, New York Sale XXVII, 4 January 2012, 166, and ex Bank Leu 50, 25 April 1990, 65 and Bank Leu 22, 8 May 1979, 33.