Allectus, AE antoninianus, London, ca. 293 AD. 

IMP C ALLECTVS PF AVG, laureate, draped and cuirassed bust right
PAX AVG, Pax standing left, holding branch and transverse sceptre.
S-A across fields.
Mintmark MSL. 

Used with permission of CNG (cngcoins.com), March, 2012