Watch List notes:

Trebonianus Gallus. A.D. 251-253. AR antoninianus (22.7 mm, 5.11 g, 7 h). Antioch mint. Scarce. IMP CC VIB TREB GALLVS PF AVG, radiate, draped and cuirassed bust right / SAECVLLVM NOVVM, Roma seated facing, holding scepter, in hexastyle temple; ·· in exergue. RIC 91; RSC 111d. aVF.