Silvered bronze antoninianus, 21mm, 4.47gm, issued AD 260-265 Cologne mint.
Obv: IMP C POSTVMVS PF AVG, Radiate, draped and cuirassed bust facing right.
Rev: VIRTVS AVG, Virtus standing naked right resting on shield and spear.
References: Sear 10998, RIC 93, RSC 419.