Watch List notes:

Probus, 276-282. Antoninianus (Billon, 22 mm, 3.45 g, 12 h), Siscia, 5th officina, 277. IMP PROBVS AVG Radiate bust of Probus to left, wearing consular robes and holding an eagle-tipped scepter. Rev. VIRTVS PROBI AVG / V/ XXI Mars advancing right, holding trophy and transverse spear. RIC 815 var. (not this officina recorded). A rare variant of a scarce type; well struck and clear. Some flatness, otherwise, very fine.