Watch List notes:

Postumus. Romano-Gallic Emperor, A.D. 260-269. AR antoninianus (23.3 mm, 3.31 g, 11 h). Treveri mint, struck A.D. 263-265. IMP C POSTVMVS P F AVG, radiate, draped, and cuirassed bust right / PROVIDENTIA AVG, Providentia standing left, holding globe and transverse scepter. RIC 80; AGK 69; RSC 295a. aVF.