Valerian I (253-260) AE Antoninianus (Bronze, 3.71g, 22mm) Antioch, 257.
Obv: IMP VALERIANVS AVG, radiate, draped bust of Valerian I right
Rev: P M TR P V COS IIII P P, Valerian and Gallienus standing, facing each other, resting hands on shields between them, two spears behind.
Ref: RIC V.I 277