Watch List notes:

Probus, 276-282. Antoninianus (Billon, 23 mm, 3.14 g, 6 h), Siscia, 277. IMP C M AVR PROBVS P F AVG Radiate bust of Probus to left, wearing imperial mantle and holding eagle-tipped scepter. Rev. VIRTVS PROBI AVG / V/XXI Emperor on horse galloping left, raising javelin in right hand to strike enemy on ground below. Alföldi type 98, 3. RIC 818. Light roughness, otherwise, good very fine.