Alexander III, AR tetradrachm. Termessos mint. 221-200 BC.

Head of Herakles right, wearing lionskin headdress.
ALEXANDROY, Zeus seated left, holding eagle and sceptre,
forepart of horse galloping left over (what looks like) 
IG in left field.

Price 2987; Gordion Hoard I, 44.

Note: The letters in the left field have sometimes been
interpreted to mean the date of Year 13. However, in his 
article "The Alexander Tetradrachms of Termessos Major", 
Andrew McIntyre writes that "A close examination ... 
reveals that the ‘numeral’ on the reverse is not IG, 
but a T with a vertical mark to its left, which is a die 
break in its later stages.