Valens, AE3 of Aquileia. 
DN VALEN-S PF AVG, pearl diademed, draped, cuirassed bust right.
SECVRITAS-REIPVBLICAE, Victory advancing left, holding wreath and palm.
Left field: B over dot.
Mintmark SMAQS.

RIC IX Aquileia 9b, type iii(a)

Contributed by Podiceps of the Forum Ancient Coins, Aug, 2011