Gratian. AE3. Trier. 367-375 AD. 

DN GRATIA-NVS PF AVG, pearl diademed, draped, cuirassed bust right
GLORIA RO-MANORVM, Victory advancing left, holding wreath and 
palm branch. 

Star in left field
mintmark TRP. 

RIC IX Trier 31c type viii(a) and 47b, type xiii (identical). Scarce.

With permission of Roma Numismatics, May 2010