MESOPOTAMIA. Carrhae. Septimius Severus, with Caracalla, 193-211. Assarion (bronze, 4.23 g, 18 mm). Laureate head of Septimius Severus to right. Rev. AΥΡ KAΡ [...] Laureate and draped bust of Caracalla to right, seen from behind; to right, crescent set on filleted globe. Dandrow, Edessa, 9. Nearly very fine. Very rare.