Watch List notes:

Probus, 276-282. Antoninianus (Silvered bronze, 21 mm, 3.54 g, 6 h), Siscia, 276. IMP C M AVR PROBVS AVG Radiate and cuirassed bust of Probus to right, breastplate decorated with gorgoneion, holding parazonium with eagle-headed pommel in his left hand. Rev. CONCORD MILIT / Γ / XXI Probus, on the left, and Concordia, on the right, standing facing and clasping their right hands. Alföldi 26/33. Cohen -. Gysen -. RIC -. An extremely rare and unusual bust type. Somewhat corroded and with minor deposits, otherwise, good fine.