Trebonianus Gallus, AR antoninianus, 23.3 mm. 3.6 g. Rome. 252-253 AD. 

IMP C C VIB TREB GALLVS AVG, radiate, draped and cuirassed bust right.
PAX AETERNA, Pax standing left, holding branch and transverse sceptre. 

RIC 71; RSC 76; Sear 9639.

With permission of Eidmar auction 3, lot 540 (on biddr.com), March 2024.