Follis - Decentius as Caesar SALVS, Lugdunum

Decentius was elevated to Caesar by his brother Magnentius in 351, a calculated move to shore up control of the Rhine frontier while Magnentius himself faced the advancing forces of Constantius II. The usurpation ended at the Battle of Mons Seleucus in August 353, after which Decentius hanged himself within days of learning his brother had died — making coins struck in his name products of a regime that lasted barely two years before total collapse.

Lugdunum was the administrative and monetary heart of the western usurpation, and RIC VIII 157 and 159 represent closely related emissions from that mint's output during the crisis peak.