Alexander III AR Tetradrachm, 270-220 BC, Chios mint. Posthumous issue. 

Head of Herakles right, wearing lionskin headdress.
ALEXANDROY, Zeus seated left, holding eagle and sceptre. 
Sphinx sitting left over AMHR monogram in left field, A under throne.

Price 2337; Bauslaugh Series 13, 25-48 (same dies).

With permission of TimeLine Auctions 
(www.timelineauctions.com), Apr, 2017