MESOPOTAMIA. Nisibis. Severus Alexander, 222-235. (Bronze, 25 mm, 12.03 g, 11 h). ΑΥT ΚΑI Μ ΑΡΑΥ CE ΑΛEΞΑΝΔΡΟC C Laureate head of Severus Alexander to right. Rev. CEΠ ΚΟΛΟ ΝECΙΒΙ ΜΗΤP Turreted, veiled and draped bust of Tyche to right; above, ram leaping right, head turned back; in right field, star. Cf. SNG Copenhagen 233 ( bust ). SNG Righetti 2618. With a dark brown patina and boldly engraved heads. Light porosity, otherwise, good very fine.