Watch List notes:

ISLANDS off IONIA, Chios. Circa 270-220 BC. AR Tetradrachm (29mm, 16.64 g, 12h). In the name and types of Alexander III of Macedon. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; in left field, sphinx seated right above monogram; Σ below throne. Bauslaugh, Posthumous, Series 19, obv. die 28; Price 2346; HGC 6, 1132. VF, small edge chip, some porosity on reverse. Very rare, five noted by Bauslaugh (including the one in Pella), one in CoinArchives.

From the Colin E. Pitchfork Collection, purchased from Freeman & Sear, 17 January 2004.