Postumus (259-268). AR Antoninianus, Cologne mint, 260-269. Obv. IMP C POSTVMVS P F AVG. Radiate and draped bust right. Rev. PAX AVG. Pax, draped, standing left, holding olive-branch in right hand and sceptre in left hand. RIC V 318. 4.18 g. 20.5 mm. Well executed refined portrait. Pleasant old cabinet tone. About EF.