Constans. AE Follis. Aquileia. 

DN CONSTA-NS PF AVG, pearl diademed, draped, cuirassed bust right

FEL TEMP-REPARATIO, emperor in military dress standing 
on galley left, holding phoenix on globe and labarum, 
Victory sitting at the stern, steering the ship. 

Mintmark AQS. 

RIC VIII Aquileia 108. Scarce.

Courtesy of Roma Numismatics, Feb, 2010