Coin depicted roughly twice actual size*

Antoninianus of Valerian I

Silver antoninianus, 21mm, 3.19gm, issued AD 257 Mediolanum mint.

Obv: IMP VALERIANVS P AVG, Bust of Valerian, radiate, draped, right.

Rev: SPES PVBLICA, Spes, draped, walking left, holding flower in right hand and raising robe with left hand.

References: Sear 9978, RIC 257.