Watch List notes:

Probus, 276-282. Antoninianus (Billon, 23 mm, 4.03 g, 6 h), Serdica, 2nd officina, 277. IMP C M AVR PROBVS AVG Radiate, cuirassed and helmeted bust of Probus to left, holding spear over right shoulder and shield on left arm. Rev. VIRTVS PROBI AVG / KAB Probus on horseback to right, spearing enemy whose shield lies beneath horse. RIC 878. Almost fully silvered. About extremely fine.