Alexander III, AR Tetradrachm. Posthumous issue. Uncertain mint in Macedonia or Greece, struck ca. 310-275 BC. 25 mm, 16.87 g. 

Head of Herakles right, wearing lionskin headdress.
ALEXANDROY, Zeus seated left, one leg drawn back, holding eagle and sceptre. 
Dolphin downwards to left in left field, NO beneath the throne. 

Price 858; Armenak hoard 150. 

With permission of iNumis Mail Bid Sale 9, Lot 14, Oct. 2009.