Carausius AE Antoninianus. C mint. 

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

RIC V-2, Camulodunum 338 var (obv legend).
Very rare. Unpublished.
Numis. Lanz, 2005