Centenionalis - Magnentius SALVS DD NN AVG ET CAES, Ambianum

Magnentius seized power in January 350 by having himself proclaimed emperor at a dinner party in Autun, killing the legitimate Augustus Constans in the process. His mint at Ambianum — modern Amiens — became one of his primary western production centers during the civil war against Constantius II that followed. The SALVS DD NN AVG ET CAES reverse type is a deliberate piece of political messaging, broadcasting the health and legitimacy of both Augustus and Caesar to a western audience that Constantius was actively trying to peel away.

Magnentius was decisively defeated at the Battle of Mons Seleucus in 353, after which Ambianum ceased operations entirely.