Watch List notes:

Postumus, Romano-Gallic Emperor, 260-269. Antoninianus (Billon, 23 mm, 2.70 g, 7 h), Cologne, 263. IMP C POSTVMVS P F AVG Radiate, draped and cuirassed bust of Postumus to right. Rev. P M TR P IIII COS III P P Mars walking right, holding spear in his right hand and trophy over his left shoulder. AGK (corr.) 64. Cunetio 2406. Elmer 332. Minor roughness and with a flan crack, otherwise, about extremely fine.