Watch List notes:

Probus, 276-282. Antoninianus (Billon, 21.5 mm, 4.04 g, 11 h), Siscia, 1st officina, 278. IMP PROBVS P F AVG Radiate, draped and cuirassed bust of Probus to right. Rev. CONCORDIA MILIT / P / XXIMC Probus standing right, clasping right hand of Concordia. Pink VI/1 p. 53. RIC 666. Well centered and sharp. About extremely fine.