Probus (276-282) AE Antoninianus (Bronze, 21mm, 3.65g) Siscia, 278. Obv: IMP C M AVR PROBVS P AVG, radiate, helmeted, and cuirassed bust to left, holding spear and shield
Rev: VIRTVS PROBI AVG, Mars advancing to right, holding trophy and spear.
Ref: RIC V.2 816;