Postumus Antoninianus, 11.
emission, struck 263 AD at Cologne mint. 3,53g, 22mm.
Obv: IMP C POSTVMVS P F AVG, radiate and cuirassed bust right.
Rev: SERAPI COMITI AVG, Serapis standing left, right arm raised, holding
long transverse sceptre in left hand.
AGK 90, Cunetio 2437, Elmer 383