Gordian III, AE of Nicaea, Bithynia. 20.09 g. 

M A NT GORDIANOC AVG, radiate, draped and cuirassed bust
left, holding spear and shield, countermark on neck. 
NIKAIEWN, Herakles, with Eros on his knee and holding club,
riding right on the back of a lion. 

RecGen 700

Courtesy of Helios Auction 5, June 2011