Watch List notes:

Probus, 276-282. Antoninianus (Silvered bronze, 23 mm, 3.71 g, 6 h), Serdica, 277. IMP C M AVR PROBVS P F AVG Radiate bust of Probus to left, wearing imperial mantle and holding eagle-tipped scepter in his right hand. Rev. SOLI INVICTO / KA•Γ• Sol, radiate, standing front, head to left, in spread quadriga, raising his right hand in salute and holding whip in his left. Cohen -. RIC 861 var. (differing bust types). Unpublished with this bust type. Minor flan crack, otherwise, nearly extremely fine.