Watch List notes:

THRACE, Mesambria. Circa 175-150 BC. AR Tetradrachm (31.5mm, 15.47 g, 12h). In the name and types of Alexander III of Macedonia. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; in inner left field, helmet above ΔA; ΠY monogram below throne. Karayotov I 133 (O47/R128); Callataÿ p. 103, dies D31/R2; Topalov, Messambria 18; Price 1047. VF, toned.

From the collection of the MoneyMuseum, Zurich. Ex Münzen und Medaillen GmBH 4 (19 March 1999), lot 264.