Constantine I, AE follis, Rome. 314-315 AD.

IMP CONSTANTINVS PF AVG, laureate, draped, cuirassed bust right.
MARTI CONSERVATORI, Mars standing right, holding 
spear and resting hand on shield.

RX-F across fields.
Mintmark R star P

RIC VII 26 var (fieldmarks)

Contributed by Riccardo Marzi, Dec. 2012