R54 - Probus (A.D. 276-282), Billon Reform Antoninianus, Cyzicus (Belkis, Turkey) mint, undated, sixth officina, radiate bust of Probus left wearing Imperial mantle, holding eagle tipped sceptre, IMP C M AVR PROBVS PF AVG, rev., Sol driving a quadriga in the heavens, SOLI INVICTO, CM / XXIS (RIC 911), practically as struck, traces of original silvering. $110