Probus, 276-282. Antoninianus (Billon, 24 mm, 4.52 g, 6 h), Serdica 1st officina, 277. IMP C M AVR PROBVS AVG Radiate bust of Probus to left, wearing imperial mantle and holding eagle-tipped scepter. Rev. SOLI INVICTO / KAA Sol, radiate, standing front in spread quadriga, with his head turned to left, his right arm raised and with whip in his left. RIC 862. C 574. Well struck with intact silvering and amazing details. Extremely fine.