Watch List notes:

ANCIENT COINS, GREEK, Sicily, Syracuse (Deinomenid Tyranny, 485-466 BC), Silver Tetradrachm, struck c.485-479 BC, charioteer driving a quadriga right, Nike above, rev ΣVPAK-OΣI-[ON], head of Arethusa facing right, dolphins swimming around, 17.17g, 8h (Boehringer 107 (V49/R73)). A small metal-flaw at centre of obverse, fine.
from the David Sellwood Collection

Estimate: £300-350