Réplique Sesterce - Trajan - Pont sur le Danube

Trajan's Danube bridge, completed around 105 AD under the engineer Apollodorus of Damascus, was the longest arch bridge the ancient world would see for over a thousand years — spanning roughly 1,135 meters on 20 stone piers. The original sestertius commemorating it is among the most historically loaded bronze issues of the Principate, struck to mark the infrastructure that made the second Dacian campaign logistically possible.

This is a modern replica. The brass composition confirms it immediately; ancient sestertii were struck in orichalcum, a zinc-rich brass alloy whose precise formulation was lost well before the third century.