Watch List notes:

THRACE, Mesambria. Circa 150-125 BC. AR Tetradrachm (32.5mm, 15.00 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, Corinthian helmet above ΔΛ; monogram below throne. Karayotov I 171 (O52/R166); Callataÿ Group 2, dies D5/R6; Price 1051; HGC 3, 1568. Near VF, toned, double struck on obverse, reverse struck with worn die.

From the Colin E. Pitchfork Collection. Ex Malter 79 (23 June 2001), lot 222 (part of).