Watch List notes:

Probus, 276-282. Antoninianus (Billon, 23 mm, 3.75 g, 5 h), Cyzicus, 4th officina, 280. IMP C M AVR PROBVS P F AVG Radiate bust of Probus to left, wearing imperial mantle and holding eagle-tipped scepter with his right hand. Rev. SOLI INVICTO / C M / XXIΔ Sol, radiate, standing front in spread quadriga, with his head turned to left, his right arm raised and with whip in his left. RIC 911. A well-struck, sharp, and silvered piece; with an unusual, spread arrangement of the mintmark. Extremely fine.