Alexander III. AR Tetradrachm. Lifetime issue, 336-323 BC. 25 mm, 17.19 g. ‘Amphipolis’ mint. Struck under Antipater, circa 332-326 BC. 

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

Price 57 var (position of legs); ANS 1944.100.29617-29618. 
 
With permission of cngcoins.com, auction 236, Lot: 50, July 2010.