Silvered bronze antoninianus, 22mm, 3.74gm, issued AD 285 Lugdunum mint.
Obv: IMP C C VAL DIOCLETIANVS PF AVG, Radiate, draped bust right.
Rev: IOVI CONSERVATORI, Jupiter, standing left, holding thunderbolt and sceptre, B in left field.
References: Sear 12669, RIC 47.
