Watch List notes:

Probus, 276-282. Antoninianus (Billon, 24 mm, 3.95 g, 6 h), Ticinum, 282 AD. IMP C PROBVS AVG Radiate bust left, wearing imperial mantle, holding scepter surmounted by eagle. Rev. SECVRIT PERP / VI XXI / I Securitas standing left, leaning on column, raising right hand over her head. RIC 525. C. 612. Intact silvering, very attractive. About extremely fine.