Antoninianus - Maximianus CONSERVATOR AVGG

Maximianus issued coins under the CONSERVATOR AVGG legend to reinforce the ideological framework of the new Tetrarchic system — specifically the fiction of harmonious co-rule between himself and Diocletian. The plural AVGG (Augusti) was a deliberate shorthand for both emperors simultaneously, a numismatic device that dressed political necessity in the language of divine protection. Diocletian had elevated Maximianus to co-Augustus in 286, less than a year after naming him Caesar, an unusually rapid promotion driven by the immediate military crises on the Rhine and in Britain under the usurper Carausius.

RIC V.2 #581F places this among the Lugdunum output of the period.