Maxentius AE Follis. 

Obv: IMP C MAXENTIVS PF AVG, laureate head right 

Rev: CONSERV-VRB SVAE, Roma seated facing, head left, in 
hexastyle temple, holding globe and scepter, Victories as acroteria; wreath in pediment.

H in left field; 
Mintmark: RS. 

RIC VI Rome 202a, rated common.

Courtesy of Roma Numismatics, Feb, 2010