Gratian (378-383) AE (Bronze, 2.31g, 18mm) Cyzicus
Obv: D N GRATIANVS P F AVG, pearl diademed, draped, cuirassed bust right
Rev: CONCORDIA AVGGG, Roma, helmeted, seated facing, head left, holding globe and spear, right leg bare; + in right field; SMKB in exergue.
Ref: RIC 17a.