Carausius, AE antoninianus. Camulodunum mint.

IMP C CARAVSIVS PF I AVG, radiate, draped, cuirassed bust right.
PROVID AVG, Providentia standing left, holding globe and cornucopiae. S-C across fields.
RIC V-2, Camulodunum 502 var (obv legend)
Rare. 
CNG sale, sold in 2004 for $207