Argenteus - Diocletianus VICTORIAE SARMATICAE, Nicomedia

The VICTORIAE SARMATICAE types commemorate Diocletian's campaigns against the Sarmatians along the Danube frontier, concluded by 294–295. The argenteus itself was a deliberate revival of the old republican silver standard — Diocletian reintroduced it as part of his broader monetary reform package, struck at roughly the weight of Nero's denarius, after silver coinage had effectively vanished from circulation for decades under the radiates of the third-century crisis. Nicomedia was Diocletian's own capital in the East, making issues from this mint particularly proximate to imperial authority.