Trebonianus Gallus, AR antoninianus, 22 mm, 3.53 gr. 252-253 AD. 

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

RIC 71; RSC 76.

Contributed by Dr. Hubert Lanz, auction November 2000, 
Added July 2011.