Kings of Macedon. Alexander III 'the Great' (336-323 BC). AR Tetradrachm Babylon, 324/3 BC. Obv. Head of Herakles to right, wearing lion skin headdress. Rev. Zeus seated left on high-backed throne, holding long scepter in his left hand and, in his right, eagle standing right with wings closed; below throne Monogram. 17.12gm, VF