Watch List notes:

Postumus. Romano-Gallic Emperor, AD 260-269. Antoninianus (19mm, 6h). Treveri (Trier) mint. 6th emission, AD 268. Radiate, draped, and cuirassed bust right / Pax standing left, holding olive branch and transverse scepter; P to left. RIC V 318; Mairat 162-5; AGK 53; RSC 215c. In NGC encapsulation 3822326-020, graded AU.