Watch List notes:

THRACE, Mesambria. Circa 150-125 BC. AR Tetradrachm (30mm, 16.54 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, crested Corinthian helmet right above ΔA; (HP)A below throne. Karayotov I 190–3 var. (O57/R– [unlisted rev. die]); Price 1054; HGC 3, 1568. VF, toned, minor double strike and small die break on reverse.

From the Colin E. Pitchfork Collection. Ex Classical Numismatic Group 58 (19 September 2001), lot 223.