Trebonianus Gallus AR Antoninianus. 

Obv: IMP CAE C VIB TREB GALLVS AVG, radiate, draped bust right 
Rev: MARTI PACIFERO, Mars running left holding branch and spear. 

RIC IV-3, 40, rated rare

Contributed by Dane for George Clegg (biggyg), December, 2005.