Carausius, AR denarius, 286-93 AD.

IMP C CARAVSIVS PF AVG, laureate, draped bust right.
ADVENTVS AVG, Carausius on horseback left, raising
right hand, captive beneath horse's front hooves.
Mintmark RSR.

RIC 535.
Rated R2.

From the Frome hoard. Courtesy of the PAS scheme of the
British Museum.