Kings of Macedon, Alexander III 'the Great' (336-323 BC) AE (Bronze, 15mm, 4.31g) struck posthumously under Philip III Arrhidaios.
Obv: Macedonian shield decorated on the boss with three-quarter head of Herakles facing slightly to right, wearing Nemean lion's skin headdress.
Rev: Crested Macedonian helmet; to lower left, monogram; to lower right, kerykeion.
Ref: Price 2803.