Watch List notes:

THRACE, Mesambria. Circa 100-72/1 BC. AR Tetradrachm (31.5mm, 15.58 g, 12h). In the name and types of Alexander III of Macedonia. Dio–, magistrate. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; ∆IO in inner left field, MEΣAM in exergue. Karayotov I 316 (O96/R312); Callataÿ Group 4, dies D5/R4; Price 1128; HGC 3, 1570. Near VF, toned, weak strike on obverse, light cut on reverse.

From the Colin E. Pitchfork Collection. Ex Classical Numismatic Group 58 (19 September 2001), lot 247.