Watch List notes:

SELEUKID EMPIRE. Seleukos I Nikator. As satrap, 321-315 BC. AR Tetradrachm (26mm, 17.20 g, 9h). 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; Taylor Series I, 11–9 var. (unlisted dies); Price P164 (Marathos); HGC 9, 11a. VF, lightly toned.

From the Colin E. Pitchfork Collection, purchased from Fred Shore, 13 January 2006.