Gratian, AE3, August 9, 378-August 25, 383, Fourth Period, Thessalonica, Officina 3 D N GRATIA_NVS P F AVGPearl-diademed, draped, cuirassed bust rightCONCOR_DIA AVGGG Roma seated facing on throne, head left, reversed spear in right hand, globe in left, left leg bare G in right field SMTES in exergue 16mm x 18mm, 2.06g