Alexander I Balas, Seleukid Kingdom. 152-145 BC. AE13mm, 
2.35 g. Antioch mint. Struck 150-146 BC. 

Aegis with gorgoneion
BASILEWS ALEXANDROU above and beneath Pegasos leaping right; monogram below. 

SC 1792.2; Hoover 938.

With permission of cngcoins.com, July 2010
Estimate $100