Watch List notes:

SELEUKID EMPIRE. Seleukos I Nikator. As satrap, 321-315 BC. AR Tetradrachm (24.5mm, 17.13 g, 6h). In the name of Philip III of Macedon, types of Alexander III. Uncertain mint 6A in Babylonia. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; monogram in left field. SC Ad39.5; Price P226; HGC 9, –. VF, lightly toned, compact flan. Rare.

From the Colin E. Pitchfork Collection. Ex Triton VI (14 January 2003), lot 1524 (part of).