Watch List notes:

ANCIENT COINS. Greek Coins. Other Properties. Macedon, Potidaia (c.500-480 BC), Silver Tetrobol, Poseidon Hippios, naked, on horseback right, holding trident, Π-O below, rev quadripartite incuse square, two quarters each containing a floral ornament, 2.45g (Head, Historia Numorum, p.212; NC 1900, p.276, 4, pl. XIII, 4 = Babelon, Traité, I, pl. LII, 7; J Alexander, Potidaea: Its History and Remains, 1963, p.56, 1).Softly struck on obverse, toned, very fine and very rare.

Estimate: £300-400