Trebonianus Gallus, AR antoninianus with reverse of Volusian. Rome.

IMP CAES C VIBIVS TREBONIANVS GALLVS AVG, radiate, draped and cuirassed bust right.
PM TRP IIII COS II, emperor standing left, holding patera and short sceptre, sacrificing over altar to left.

RIC 3; RSC 95.
Very rare.