Constans AE3 AD 324-350.

CONSTAN-S PF AVG, rosette-diademed, draped, cuirassed bust right
VICTOR-IA AVGG, Victory standing facing, head right, holding 
a wreath in each hand.
Right field: Chi-Rho.
Mintmark: star BSIS star

RIC VIII Siscia 181, rated Scarce.
Note : the stars are on the exergual line.

Courtesy of deamoneta.com, Jun, 2010