EGYPT. Alexandria. Julia Mamaea, Augusta, 222-235. Tetradrachm (Billon, 24 mm, 12.06 g, 12 h), Dated regnal year IΔ (14) of Severus Alexander = 234/235 . ΙΟΥ ΜΑΜΑΙΑ CΕΒ ΜΗΤΕ CΕΒ Κ CΤΡΑ Draped bust of Julia Mamaea to right, wearing stephane. Rev. L IΔ Jugate busts of Sarapis and Isis to right; to right, palm branch. Dattari 4518. Milne 3177. RPC VI, ID 10655.6 this coin. This coin illustrates the type in RPC online; very rare. Some roughness, otherwise, very fine.