Trebonianus Gallus, AE Sestertius, struck 251-253 AD. IMP CAES C VIBIVS TREBONIANVS GALLVS AVG, laureate, draped bust right, seen from the back. SECVRITAS AVGG, Securitas standing facing, head right, leaning on column, legs crossed, right arm over head. S-C across fields. (Reverse proper to Hostilian). RIC 124; Cohen 124; Sear 9680, rated Rare Contributed by Juergen Elsass, Dec. 2010