Watch List notes:

Trebonianus Gallus. AD 251-253. AR Antoninianus (22mm, 3.90 g, 12h). Rome mint, 6th officina. Special emission, late AD 252. Radiate, draped, and cuirassed bust right / PAX AETERNA, Pax standing left, holding olive branch and transverse scepter. RIC IV 71 (Milan); RSC 76 (Milan). Toned, some die rust. Near EF.