MESOPOTAMIA. Edessa. Severus Alexander, 222-235. (Bronze, 31 mm, 15.89 g, 11 h), AYT KAI M AYP AΛΕΞΑΝΔΡΟC Laureate draped and cuirassed bust of Severus Alexander to left, seen from behind. Rev. MH KO EΔΕCCHNΩΝ Tyche flanked by two stars, seated on rock field to left, holding branch; to left flaming altar; river god at feet. SNG Cop. 218 (these dies). Very attractive with nice details. Very fine.