Maximian Herculius. AE Follis. 25mm. 307 AD. Aquileia. 

IMP C MAXIMIANVS PF AVG, laureate head right

CONSERV-VRB SVAE, Roma seated facing, head left, shield at side,
 holding globe and sceptre within hexastyle temple which has 
knobs as acroteria and wreath in pediment. 

Mintmark AQP. 

RIC VI Aquileia 118.

With permission of Roma Numismatics, Jan. 2010