Watch List notes:

SELEUKID EMPIRE. Seleukos I Nikator. As satrap, 321-315 BC. AR Tetradrachm (27mm, 17.19 g, 2h). 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; monogram in left field. SC Ad39.5; Taylor Series I, 57 (A20/P5); Price P225; HGC 9, 11a. VF, slightly off center, a few light marks.