Watch List notes:

SELEUKID EMPIRE. Seleukos I Nikator. Second satrapy and kingship, 312-281 BC. AR Tetradrachm (28mm, 17.12 g, 7h). In the name and types of Alexander III of Macedon. Babylon I mint. Struck circa 311-300 BC. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; monogram in wreath in left field, MI below throne. SC 82.5b; Price 3747; HGC 9, 10f. Lightly toned, minor double strike on reverse. EF. Struck on a broad flan.