Trebonianus Gallus (251-253).     AE Sestertius, Rome mint, 251-253.   Obv.    IMP CAES C VIBIVS TREBONIANVS GALLVS AVG. Laureate, draped and cuirassed bust right.        Rev.   LIBERTAS AVGG SC. Libertas standing left, holding pileus and sceptre.     RIC IV  114a.     19.29 g.   31.00 mm.          VF.