Gordian III, AE of Edessa, Mesopotamia.

AVTOK K M ANT GORDIANOC CEB, radiate, draped and
cuirassed bust right. 
ABGAROC BACKKEVC (sic), Abgar on horseback right, left hand
outstretched. 

BMC 41, Babelon 95. 

From JNG XIX, 1969.