Gratian AE3. Constantinople.

DN GRATIA-NVS PF AVG, helmeted, pearl-diademed, draped and 
cuirassed bust right, holding spear and shield.
GLORIA RO-MANORVM, Emperor standing left, head right, on 
galley, raising right hand, Victory seated at helm.
Left field: wreath.
Mintmark CONB.
RIC IX Constantinople 52a, rated common.

Used with permission of CNG coins, www.cngcoins.com.