MESOPOTAMIA. Edessa. Septimius Severus, with Caracalla and Geta, 193-211. Ae (bronze, 4.26 g, 19 mm). Laureate head of Septimius to right, facing laureate and draped bust of Caracalla to left. Rev. Bare-headed, draped and cuirassed bust of Geta to right; before, crescent on filleted globe. Lindgren II, 2559; cf. Nomos obolos 17, lot 550. Fine. Extremely rare.