Postumus, Romano-Gallic Emperor, 260-269. Antoninianus (Billon, 21 mm, 3.84 g, 1 h), Cologne, 266. IMP C POSTVMVS P F AVG Radiate, draped and cuirassed bust of Postumus to right. Rev. MARS VICTOR Mars standing front, head to left, placing his right hand on shield set on ground and holding inverted spear in his left. AGK (corr.) 42. Cunetio 2422. Elmer 389. RIC 312. Rare. Struck from slightly worn dies and with thin flan cracks, otherwise, nearly extremely fine.