Carausius, AE antoninianus. London mint. 

IMP CARAVSIVS PF AVG, radiate, draped and cuirassed bust right 
PAX AVG, Pax standing left holding branch and vertical 
sceptre. 
F-O over F across fields. 
Mintmark ML. 
RIC V-2, London 101 (right fieldmark overstruck). 

with permission of cngcoins.com, 2005.