Galla Placidia, mother of Valentinian III (died 450 AD). AE 12.5 mm. Rome mint. Obv. [DN GALLA PLACIDIA PF AVG]. Pearl-diademed and draped bust right. Rev. SALVS REIPVBLICE. Cross; in right field, P; in exergue [RM]. RIC 2112 (R4). AE. g. 1.08 mm. 12.50 RRRR. Very rare. Dark green patina with lighter highlights. F/VF.