Probus, Antoninianus, 277, Fourth Emission, Siscia, Officina 4IMP C M AVR PROBVS P F AVGRadiate, cuirassed bust left, spear in right hand over shoulder, shield decorated with dot pattern in leftSOLI INVICTO-AVG Sol in quadriga galloping left, right hand raised, whip in left XXIQ in exergue 22mm x 23mm, 3.38g