Alexander III, AR tetradrachm, lifetime issue, 336-323 BC. 
25 mm, 17.13 g, Amphipolis mint, struck under Antipater, ca 332-326 BC. 

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

Janiform headed vase in left field. 

Price 6; Mueller 853; Demanfur 91-131; SNG Cop 660.

With permission of Leu Numismatik, Auction 6, lot 76,
Dec. 2018.