Probus, Antoninianus, 278, Fifth Emission, Siscia, Officina 6IMP C M AVR PROBVS P AVGRadiate, cuirassed bust left, spear in right hand over shoulder, shield in leftVIRTV_S PR_OBI AVGMars walking right, spear pointing forward in right hand, trophy in left over shoulderXXIVI in exergue22mm x 23mm, 4.41g