Gratian AE3, Siscia.

DN GRATIA-NVS PF AVG, pearl diademed, draped, cuirassed bust right.
GLORIA RO-MANORVM, Gratian advancing right, holding labarum and dragging captive.
F in left field.
D over hooked R in right field.
Mintmark Delta SISCE.

RIC IX Siscia 14d, type xliii, rated rare.

From Dane's collection, Dec. 2011.