Trebonianus Gallus. A.D. 251-253. AR antoninianus (23 mm, 3.64 g, 7 h). Rome, A.D. 252. IMP C C VIB TREB GALLVS AVG, radiate and cuirassed bust of Trebonianus Gallus right / PAX AETERNAE, Pax standing facing, head left, holding olive branch and transverse scepter. RIC 71; RSC 76. Flip-over double strike with Gallus's portrait clear on the bod of Pax. NGC AU, strike: 2/5, surface: 5/5.