Watch List notes:

KINGS of MACEDON. Philip III Arrhidaios. 323-317 BC. AR Tetradrachm (25.5mm, 17.06 g, 5h). In the types of Alexander III. Susa mint. Struck under Koinos, circa 322-320 BC. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; P in left field, Ξ below throne. Price P218. Lustrous, slightly off center, light roughness on obverse. Good VF. Very rare, three in CoinArchives, two in Pella database (a third piece there is misidentified).