Watch List notes:

Probus, 276-282. Antoninianus (Billon, 21.5 mm, 3.73 g, 6 h), Siscia, 6th officina (S), 277. IMP C M AVR PROBVS P F AVG Radiate bust of Probus to left, wearing imperial mantle, holding in right hand scepter surmounted by an eagle. Rev. ADVENTVS PROBI AVG / XXIS Probus on horseback to left, extending right arm in salute and holding long scepter in his left; under horse's raised leg, bound captive seated left. RIC 632. Some silvering still intact. Good very fine.

From the Trausnitz Collection, acquired prior to 2007.