Sicily, Syracuse, Hieron I, Tetradrachm ca. 475-470 BC, very rare variety

Sicily. Syracuse. Hieron I. Tetradrachm ca. 475-470 BC. Silver 17.09 g.; 25.4 mm.
Obverse: Head of Arethusa right, wearing pearl tainia; four dolphins around // Reverse: Charioteer, holding kentron and reins, driving slow quadriga right; above, Nike flying right, crowning horses.

HGC: 2-1307.

Very rare variety with this obverse die. Extremely fine EF 40-45