Alexander III AR tetradrachm. uncertain mint in Greece or Macedonia. Posthumous issue, struck 310-275 BC. 27 mm, 17.09 g. 

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

MW monogram in left field, RHA monogram beneath throne. 

Price 826.
Very rare.

With permission of cngcoins.com, auction 340, Lot 77, Dec. 2014.