Seleukid Kingdom. Seleukos I Nikator, 312-280 BC. AR Tetradrachm (27.4mm, 16.6g, 6h). Babylon I mint. Struck under the name of Alexander III the Great. Head of Herakles facing right, wearing lion's headdress; Rev.:Zeus holding eagle and sceptre, monogram within wreath in left field, MI below throne. Price 3747. About Very Fine. Estimated Value $550 - UP