Maxentius. AE Follis. 307-310 AD. 

IMP C MAXENTIVS PF AVG, laureate, cuirassed bust left, holding shield on left arm, spear over right shoulder
CONSERV-VRB SVAE, Roma seated facing, head left, in hexastyle temple, holding globe & scepter, shield at side, RBP in ex. 

RIC VI Rome 209, rated R2.

Contributed by Dane for Roma Numismatics, June 2009