Alexander III.  336-323 BC. AR Tetradrachm. Mesembria mint. Struck 175-125 BC. 

Head of Herakles right, wearing lionskin headdress /
BASILEWS ALEXANDROY to right and left of Zeus seated left, holding 
eagle and sceptre; Corinthian helmet and DA in left field,
PoR monogram beneath throne. 
Price 1062; Müller 466.

With permission of TimeLine Auctions (www.timelineauctions.com), March, 2014