Roman Empire. Carausius, 286 AD. AE Antoninianus. ‘C’ Mint. Pax Reverse.
 
Obv: Radiate, draped, cuirassed bust right. Rev: Pax standing left, holding branch and scepter, SP each side, C below.
 
A green patina, some chipping to edges and roughness to surface, light areas of original silver wash remaining.