Maxentius. AE Follis. 307-310 AD. 

IMP C MAXENTIVS PF AVG, laureate, cuirassed bust left, holding shield on left arm, spear pointed forwards in right hand.
CONSERV-VRB SVAE, Roma seated facing, head left, in hexastyle temple, holding globe and sceptre, shield at side, 
decorated pediment.

Unclear mintmark, possible RBP. 

RIC VI Rome 209.

Contributed by Chris Scarlioli, Feb. 2017.