Silver denarius, 20mm, 2.58gm, issued AD 218-222 Rome mint.
Obv: IMP CAES M AVR ANTONINVS AVG, Laureate, draped bust right.
Rev: FIDES EXERCITVS, Fides, draped, seated left, holding eagle and standard; before her, standard.
References: Sear 7511, RIC 71, RSC 32.
Toned.