Watch List notes:

THRACE, Mesambria. Circa 225-175 BC. AR Tetradrachm (36mm, 16.51 g, 1h). In the name and types of Alexander III of Macedon. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left on ornate throne with thunderbolt on rear leg; in left field, crested Corinthian helmet right; ΛA below throne, monogram in exergue. Karayotov I 68 (O23/R77); Price 1032 corr. (thunderbolt on leg); HGC 3, 1567. VF, toned, flan crack, overstruck on uncertain type. Very rare, Karayotov notes five examples (including the one in Pella), one in CoinArchives.

From the Colin E. Pitchfork Collection. Ex Superior (5 December 1997), lot 1359.