Watch List notes:

SELEUKID EMPIRE. Seleukos I Nikator. As satrap, 321-315 BC. AR Tetradrachm (25mm, 17.15 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; monogram in left field. SC Ad39.5; Taylor Series I, 57–8 (A20/P5); Price P225; HGC 9, 11a. Near VF, toned.

From the Colin E. Pitchfork Collection, purchased from Classical Numismatic Group, December 1994.