Constantius II AE3. 337-341 AD.

CONSTAN-TIVS AVG, pearl-diademed head right.
GLOR-IA EXERC-ITVS, two soldiers holding spears and shields with 
one standard between them, dot on banner, dot to left and right 
of top of banner. 

Mintmark SMANS.

RIC VIII Antioch 54