Postumus Antoninianus, struck 266 AD at Cologne mint. Obv: IMP C POSTVMVS P F AVG, radiate, draped and cuirassed bust right. Rev: MARS VICTOR, Mars standing left, holding spear, leaning on shield which rests on ground. 3,89 g, 21 mm. RIC 312; Elmer 389; AGK (corr.) 42; Cunetio 2422;