Valerian I, 253-260. Antoninianus (Silver, 24 mm, 4.74 g, 6 h), Viminacium, 254. IMP VALERIANVS P AVG Radiate, draped and cuirassed bust of Valerian I to right, seen from behind. Rev. CONCOR EXERC Concordia standing front, head to left, holding patera over lighted altar in her right hand and cornucopiae in her left. Cohen 36. Eauze 1374. MIR 803d. RIC 233 corr. ('Mediolanum' and bust type). An exceptional piece, lightly toned, boldly struck and with a particularly expressive portrait. Minor flan fault on the reverse, otherwise, good extremely fine.