Watch List notes:

Trebonianus Gallus. AD 251-253. AR Antoninianus (22.5mm, 3.25 g, 12h). Rome mint, 5th officina. 4th emission, early AD 253. Radiate, draped, and cuirassed bust right / Salus standing left, holding scepter and feeding from patera snake coiled around and rising from altar to left. RIC IV 46a; RSC 117. Lightly toned, underlying luster. Good VF.