Mesopotamia, Nisibis. Severus Alexander. A.D. 222-235. AE 28 (27.4 mm, 11.09 g, 11 h). AV KAI MAP AV CE ··· AΛEΞ[ANΔPOC], laureate head right / CEΠ KOΛ NECIB MHT, turreted and draped bust of Tyche right, ram leaping right above, star behind head and before. BMC 5 var (slight drapery on bust); SNG Cop 233 var (no star behind); SNG Righetti 2618 var. (slight drapery, no star behind Tyche). Fine, porous. Rare variety.