Carausius, AE antoninianus. Camulodunum mint.

IMP C CARAVSIVS PF AVG, radiate, draped, cuirassed bust right.
PAX AVG, Pax standing left, holding olive branch and vertical sceptre.
S-P across fields.
Mintmark MLXXI.
RIC V-2, Camulodunum 300
Common.
Note This mintmark on this coin has been judged to be 
Camulodunum, not London.

Submitted by the finder in England, via Timeline Originals, May 2013.