Alexander III, AR tetradrachm, Babylon mint. 24 mm, 17.12 g. Lifetime issue, 336-323 BC. 

Head of Herakles right, wearing lionskin headdress.
ALEXANDROY, Zeus seated left, holding eagle and sceptre.

Trident head left in left field.
IFLI monogram over M beneath chair.

Price 3633; Demanhur hoard 4228-4230; Newell, 'Reattribution' 213.

With permission of cngcoins.com, auction 230, Lot 30, March 2010.