Sicily.   Syracuse.    AR Tetradrachm, First Democracy, c. 510-491 BC.   Obv.    SVRA(koppa)/SION. Charioteer, holding reins in both hands, driving slow quadriga right.        Rev.   Head of Arethusa left within incuse circle in centre of quadripartite incuse square.     HGC 2 1301; SNG ANS 2; SNG München 918; Boeringher 9 (V7/R5).     16.15 g.   26.5 mm.      RR.  Very rare early Tetradrachm. Some corrosions.    VF.