Carausius, AE antoninianus. Camulodunum mint. AD 286-293.

IMP C CARAVSIVS AVG, radiate, draped and cuirassed bust right.
PAX AVGGG, Pax standing left, holding olive branch and vertical sceptre.
S-P across fields.
Mintmark MC.

RIC V-2, Camulodunum 336 var (mintmark); Bourne 164; Rogiet hoard 997; PAS 2005T434; BM 2007,4056.171 (this coin, Elveden hoard).

Image courtesy of the British Museum.