Valentinian I, AE3, Siscia. 

DN VALENTINI-ANVS PF AVG, pearl diademed, draped, cuirassed bust right 
SECVRITAS-REIPVBLICAE, Victory advancing left, holding wreath 
and palm. 
Star over A in left field. 
Mintmark: dot delta SISC. 

RIC IX Siscia 7a, type v(b).

Dane's collection, Jan. 2013