Gratian, AE4 engraver's error, Cyzicus.

DN GRATIA-NS PF AVG (sic), pearl diademed, draped, cuirassed bust right.
VOT X MVLT XX within wreath.
Mintmark SMKB

RIC IX Cyzicus 21a var (obv legend).
Engraver's error.

Contributed by Rob Dyer, March 2015.