Gordian III, AR Antoninianus, AD 238-239, Antioch Mint. 22 mm.

IMP CAES M ANT GORDIANVS AVG, radiate, draped and cuirassed bust right.
ROMAE AETERNAE, Roma seated left on shield, holding Victory and spear. 

RIC IV-3 200; RSC 312. 
Scarce.

With permission of Numismatik Naumann auction 90, Lot 589, June 2020.