Kings of Macedon, Alexander III 'the Great' (336-323 BC) AR Drachm (Silver, 4.32g, 16mm), struck under Antigonos I Monophthalmos, Magnesia ad Maeandrum, ca 319-301.
Obv: Head of Herakles to right, wearing lion's skin headdress.
Rev: ΑΛΕΞΑΝΔΡΟΥ Zeus seated left on backless throne, holding eagle in his right hand and long scepter with his left; to left and below throne monograms.
Ref: Price 1970.