Carausius, AE antoninianus. Camulodunum mint. 

IMP CARAVSIVS PIVS IN AVG, radiate, draped and cuirassed bust right.
ABVNDAN AVGGG, Abundantia standing left, emptying cornucopiae into modius. 

S-P across fields. 
Mintmark C. 

RIC V-2 189 var (legends); Vogelaar 1143; Bourne 52.
R5.