Seleukid Kingdom. Seleukos I Nikator. 312-281 BC. AR Tetradrachm (26mm, 17.11g). 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 82.6; Price 3704; HGC 9, 10f.