Alexander III AR Tetradrachm. Odessos mint. 280-200 BC. Posthumous issue. 30 mm, 16.7 g.

Head of Herakles right, wearing lionskin headdress.
BASILEWS ALEXANDROY, Zeus seated left, right leg drawn back, holding eagle and sceptre.
I-D in circle-I monogram beneath chair, KOI in exergue.

Price 1171 (this coin, corr (position of monogram); ANS 1944.100.35820 corr. (ditto).

Image courtesy of the ANS New York.