Watch List notes:

Trebonianus Gallus, 251-253. Antoninianus (Silver, 21 mm, 3.66 g, 7 h), Rome, 251. IMP CAE C VIB TREB GALLVS AVG Radiate, draped and cuirassed bust of Trebonianus Gallus to right, seen from behind. Rev. ROMAE AETERNAE Roma seated left on shield, holding Victory in right hand and long scepter in left. Cohen 105. RIC 63. An extremely rare type from Gallus' first emission. Minor deposits, otherwise, very fine.