Watch List notes:

Trebonianus Gallus. A.D. 251-253. AR antoninianus (21.18 mm, 3.55 g, 12 h). Rome mint, struck A.D. 252. IMP C C VIB TREB GALLVS AVG, radiate, draped and cuirassed bust right / PAX AETERNA, Pax standing left, holding branch and transverse scepter. RIC 71; RSC 76. EF.