7th emission of Siscia, IMP C M AVR PROBVS AVG, Radiate, cuirassed, bust right. / CONCORD MILIT, Emperor standing right, clasping hand of Concordia. Error -IV / XXI
Date: ca.280AD
Diameter: 22mm
Weight: 3.45g
Catalogue ref: RIC 651, Alfoldi type26, Not in with IV as should be VI