Alexander III. 336-323 BC. AR  Tetradrachm, Kallatis mint.
Struck 250-225 BC. 

Head of Herakles right, wearing lionskin headdress.
BASILEWS ALEXANDROY, Zeus seated left, holding eagle and 
sceptre; PA monogram in left field, horizontal grain
ear beneath chair. 

Price 926; Müller 494; Black Sea Hoard (Marinescu) 26-27.

Sold by Cayon Numismatics, Dec 2015.