VAGI Mesopotamia, Edessa. Gordian III & Agbar US $26.00 Mar-26-03 davidvagi_smythe Mesopotamia, Edessa. Gordian III. A.D. 238-244. AE29 29. Radiate, draped and cuirassed bust of Gordian III; star before Diademed and draped bust of Abgar X right; star behind. BMC 97-8.