Antoninianus - Maximianus PAXX AVGG, Pax

The PAXX AVGG reverse type — a deliberate orthographic quirk sometimes interpreted as a scribal error but more likely a die-cutter's idiosyncrasy — appears across the Diocletianic reform coinage of the early 290s, when the mint system was being reorganized under the emerging tetrarchic structure. Maximianus held the rank of Augustus in the West from 286, and joint-reign reverse legends like this one were politically calculated to project collegial harmony between him and Diocletian at a moment when the empire's administrative division was still being consolidated.