Constans AE2, Rome. 310-313 AD. 

DN CONSTA-NS PF AVG, pearl diademed, draped, cuirassed bust right.
FEL TEMP-REPARATIO, emperor, in military dress, standing in 
prow of galley, holding phoenix on globe and standard with 
chi-ro on banner. Victory sitting at the stern, steering the ship. Officina letter digamma (S) in left field.
Mintmark RT.
RIC VIII Rome 133
Rated R3.

Contributed by Robert Edwards, March 2014.