Antoninianus - Diocletianus CONCORDIA MILITVM, Heraclea

By 295–296, Diocletian's tetrarchic system was barely a decade old, and the CONCORDIA MILITVM type was doing explicit ideological work — broadcasting military unity across an empire that had spent most of the third century tearing itself apart through usurpation and civil war. The Heraclea mint, established around 291 in Thrace, was one of Diocletian's new provincial facilities created specifically to decentralize production and support the eastern campaigns.

RIC VI 13 places this among the early Heraclean issues before the coinage reform of 296–297 that would introduce the post-reform radiate and restructure bronze denominations across all mints.