Watch List notes:

Postumus. Romano-Gallic Emperor, AD 260-269. Antoninianus (22mm, 3.60 g, 12h). Treveri (Trier) mint. 2nd emission, 2nd phase, AD 262. Radiate, draped, and cuirassed bust right / Neptune standing left, holding dolphin and trident; to left below, prow left. RIC V 76; Mairat 51-55; AGK 46; RSC 205a. Toned, well struck. Good VF.