Silver antoninianus, 22mm, 3.07gm, issued AD 251-253 Rome mint.
Obv: IMP CAE C VIB VOLVSIANO AVG, Radiate, draped, cuirassed bust right.
Rev: PIETAS AVGG, Pietas, veiled, draped, standing left, raising both hands, altar left.
References: Sear 9761, RIC 182, RSC 88.