Watch List notes:

Probus, 276-282. Antoninianus (Billon, 22 mm, 3.89 g, 6 h), Siscia, 4th officina, 280. IMP C PROBVS P F AVG Radiate and cuirassed bust of Probus to right. Rev. PAX AVGVSTI /Q/ XXI Pax standing front, her head turned to left, holding an olive branch in her right hand and a transverse scepter in her left. Cohen 420. RIC 712. Well-centered and with a lovely portrait. Extremely fine.