Watch List notes:

SELEUKID EMPIRE. Seleukos I Nikator. First satrapy, 321-315 BC. AR Tetradrachm (24.5mm, 17.05 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; Taylor Series I (unlisted obv. die); Price P225; HGC 9, 11a. In NGC encapsulation 5872238-109, graded Ch XF, Strike: 5/5, Surface: 3/5.