Watch List notes:

SELEUKID EMPIRE. Seleukos I Nikator. Second satrapy and kingship, 312-281 BC. AR Tetradrachm (28mm, 17.06 g, 4h). 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, H below throne. SC Ad57E (= 82.6 var. [no pellet in monogram]); Price 3704 var. (same); HGC 9, 10f. Toned, trace deposits, light marks, delamination on reverse. Near EF. Fine style and well struck in high relief.