Valentinian I AE3, Constantinople. 

DN VALENTINI-ANVS PF AVG, pearl diademed, draped, cuirassed bust right.
SECVRITAS-REIPVBLICAE, Victory walking left, holding wreath and palm branch.

C in left field.
Mintmark CONSA.

RIC IX Constantinople 42a var (unlisted field mark for Valentinian I)

Contributed by John Olding, August 2023.