Nummus - Diocletianus GENIO POPVLI ROMANI, Siscia

The GENIO POPVLI ROMANI reverse type was introduced as part of Diocletian's coinage reform of 294–296 AD, which created the nummus as a larger, silvered bronze denomination intended to stabilize a monetary system that had been quietly collapsing for decades. Siscia — modern Sisak in Croatia — was one of the key mints activated to meet the sudden demand for the new coin across the Balkans and Danube frontier.

RIC VI 95a places this piece among the earlier Siscia issues of the reform, before the mint shifted workshop organization following the introduction of the tetrarchic system's full administrative restructuring. The silvering on most survivors has long since stripped away.