Watch List notes:

ISLANDS off CARIA, Kos. Circa 370/60-345 BC. AR Tetradrachm (23mm, 14.96 g, 11h). Dion, magistrate. Bearded head of Herakles left, wearing lion skin / Crab; below, club above ΔIΩN; all in dotted square within incuse square. Ingvaldsen Issue VI, 16a (O8/R16) = Stefanaki Series IV, Issue 9, 212 (this coin, illustrated in both references); HGC 6, 1302. Lightly toned, minor flan flaw on reverse. VF.

From the William H. Birkinshaw Collection. Ex Classical Numismatic Group 49 (17 March 1999), lot 609; Classical Numismatic Group 46 (24 June 1998), lot 446.