Seleukos I Nikator. 312-281 BC. AE21mm, 10.49 g. Seleukeia 
ad Tigrim mint II. 

Winged head of Medusa right.
BASILEWS SELEYKOY above and beneath bull butting right; 
Q above, XAX monogram between hind legs. 

SC 151.2a; HGC 9, 76.

With permission of cngcoins.com, Feb. 2014.