Silver antoninianus, 22mm, 3.76gm, issued AD 253 Antioch, Syria mint.
Obv: IMP C P LIC VALERIANVS AVG, Radiate, draped bust right.
Rev: PIETAS AVGG, Valerian and Gallienus, standing face to face, sacrificing at altar between them.
References: see Sear 9955, RIC 284.