Correct http://www.tifcollection.com/egypt-julia-mamaea-serapis-tet IOV(ΛIA) MAMAIA CEB(ACTH) MHTE(P) CE(BACTOV) K(AI) CTPA(TOΠEΔωN) Julia Mamaea Augusta Mater (Mother) of Augustus (Emperor) and the Camps Emmett's book has a handy table expanding the legend abbreviations
Ah, close, but no cigar! I took CTRA as short for στρατηγός (army commander; general), not στρατοπεδεία (encampments).