Watch List notes:

Probus, 276-282. Antoninianus (Billon, 23 mm, 3.59 g, 12 h), Cyzicus, 280. IMP C M AVR PROBVS P F AVG Radiate, helmeted and cuirased bust of Probus to left, holding shield and spear over his right shoulder. Rev. VIRTVS PROBI AVG /XXIMC Probus riding horse right, holding shield and hurling spear at fallen enemy to lower right; shield and Q below. RIC 912-3. Very rare example, intact silvering. Very fine.