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Gratian AE 18mm. Struck 367-375. 
DN GRATIANVS PF AVG, pearl-diademed, draped, and cuirassed bust right.
GLORIA RO-MANORVM, Gratian walking right, holding labarum and dragging 
captive; 
S in left field, D in right field. 
Mintmark GammaSISC. 

RIC IX Siscia 14c, type xiii.