Watch List notes:

Probus, 276-282. Antoninianus (Billon, 22 mm, 3.91 g, 11 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. Brown patina with subtle silvering; well centered with a ccompact military bust. Good very fine.