Bronze antoninianus, 23mm, 3.84gm, issued AD 276-282 Siscia mint.
Obv: IMP C M AVR PROBVS PF AVG, Radiate bust, wearing imperial mantle, left, holding sceptre surmounted by eagle in right hand.
Rev: VIRTVS PROBI AVG (XXI in ex.), Probus, galloping right, spearing enemy, Q below.