Maximianus, AE Antoninianus. AD 287-293. Struck by Carausius. 24.6 mm. Camulodunum mint.

IMP C M A VAL MAXIMIANVS P F AVG, radiate and cuirassed bust right.
VIRTVS AVGGG, Mars, helmeted, standing right, holding 
reversed spear in right hand, and resting left hand on shield.
S-P across fields.
Mintmark C.

RIC unlisted; RIC 30 var (Diocletian).

With permission of online store, item 40703, Forum Ancient coins.