Watch List notes:

THRACE, Mesambria. Circa 225-175 BC. AR Tetradrachm (31mm, 16.56 g, 12h). In the name and types of Alexander III of Macedon. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; helmet right in inner left field, ΛA below throne. Karayotov I 59 (O23/65); Price 1029; HGC 3, 1567. Dark toning, flan crack, minor double strike, flan flaw and die wear on obverse. EF.

From the James Barry Collection, purchased from Calgary Coin Gallery (Robert Kokotailo), November 2010.