No.1130. Rare. gFine. $150.

Gordian III & Tranquillina AE28 Pentassarion of Istros, Moesia Inferior. 

Obv: Confronted draped busts 

Rev: ICTPIHNWN, Athena, helmeted, standing left with sheild at foot, 
 facing serpent entwined tree, E in center.

By permission of ancientcoinart.com.