Gordian III; AE23 of Edessa, Mesopotamia.

Obv: AVTOK M ANT GORDIANOC AVG, Radiate, draped, cuirassed 
bust left, holding shield; star to left.
Rev: ABGAROC BACILEWC.., draped bust right, wearing tiara, 
star to left.

Mionnet V, 160. cf BMC 158 (laureate); Babelon:-; 

Courtesy of T&S Petrov, Jan. 2011