Follis - Constans I FEL TEMP REPARATIO, Phoenix standing on the globe, Treveri

The FEL TEMP REPARATIO ("happy times are here again") coinage was launched in 348 AD to celebrate the 1,100th anniversary of Rome's founding — a massively coordinated imperial propaganda effort issued simultaneously across nearly every mint in the empire. Treveri (modern Trier) was among the most productive western mints of the period, supplying coinage to the Rhine frontier armies. The phoenix type, specifically, was the rarest of the three FEL TEMP reverse designs and was discontinued earliest, making Treveri examples notably scarcer than the soldier-and-horseman types that dominated later production under Constantius II.