Probus Antoninianus, struck AD 276-282 at Ticinum mint.
Obv: IMP C PROBVS P F AVG, radiate, draped and cuirassed bust right.
Rev: VIRTVS AVG / PXXI (in exergue), Mars advancing left, holding trophy and spear.
3,30 g, 22 mm.
RIC 428
Ex Grohs-Fligely collection 1875-1962, with collector's ticket.