Watch List notes:

Probus, 276-282. Antoninianus (Billon, 22 mm, 4.17 g, 12 h), Serdica, 4th officina, 277. IMP C M AVR PROBVS P F AVG Radiate cuirassed and mantled bust of Probus to right. Rev. VIRTVS PROBI AVG / KA Δ Probus on horseback to right, spearing enemy whose shield lies beneath horse. RIC 877. Well struck and clear example. Very fine.