Postumus, AE Antoninianus, Cologne, AD 268. 3.87 g. 

IMP C POSTVMVS PF AVG, radiate, draped bust right.
IOVI CONSERVAT, Jupiter standing left, holding thunderbolt
and sceptre, child at foot.

RIC V-II Cologne 308; Elmer 388; Cohen 151. 
Scarce.

With permission of PF Jacquier, Sept. 2015.