Gratian. A.D. 367-383. AE centenionalis (18.1 mm, 2.80 g, 11 h). Alexandria mint, struck A.D. 378-383. D N GRATIANVS P F AVG, pearl-diademed, draped and cuirassed bust of Gratian right / CONCORDIA AVGGG, Roma, helmeted, seating facing, looking left, right leg bare, holding globe and spear; ALEA in exergue. RIC 9a.1; LRBC 2870. gVF, black patina with earthen highlights.
RIC rates this as common but there are none to be found at ACSearch and only one, in variation, at Wildwinds.