Antoninianus - Diocletianus PROVIDENT DEOR; Providentia

Diocletian's currency reform of 294 AD — the same year this issue closes — was one of the most sweeping monetary interventions in Roman history, introducing the argenteus and restructuring bronze denominations that had been debased into near-worthlessness over the preceding decades. The antoninianus itself was effectively killed by the reform, making issues from this transitional window some of the last of the type ever produced under imperial authority.

RIC V.2 #74 places this piece among the Lugdunum or eastern mint outputs of the early tetrarchic reorganization, when Diocletian was actively consolidating mint production under the new four-emperor system established in 293.