Probus, Antoninianus, 277 (Pink)/280-281 (Gysen), Fourth Emission, Serdica, Officina 1IMP C M AVR PROBVS P F AVGRadiate, cuirassed bust rightVIRTVS PROBI AVGEmperor galloping on horseback right, spearing enemy whose shield lies beneath horseKA . A . in exergue23mm x 24mm, 3.90g