Watch List notes:

SELEUKID EMPIRE. Seleukos I Nikator. As satrap, 321-315 BC. AR Tetradrachm (27.5mm, 17.07 g, 12h). In the name of Philip III of Macedon. Uncertain mint 6A (in Babylonia). Struck circa 320-315 BC. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; monograms in left field and below throne. SC Ad39.2; Price P164 (Marathos); HGC 9, 11a. Slightly off center on obverse. VF.

From the Judy Day Frink Collection, purchased from Owl Ltd (John Barton).