Gratian AV 1-1/4 Solidus. Antioch. 

D N GRATIA-NVS P F AVG, rosette-diademed, draped, cuirassed bust right.
VICTORIA ROMANORVM, Victory advancing left holding wreath and palm.
Chi-rho in left field.
Mintmark ANOBZ

Not in RIC or RSC with this reverse legend.

With permission of Leu Numismatik, auction 10, lot 436.