Trajan Decius (249-251) AR Antoninianus (Silver, 3.73g, 22mm) Rome.
Obv: IMP C M Q TRAIANVS DECIVS AVG, radiate, draped, and cuirassed bust of Trajan Decius right, seen from behind
Rev: ABVNDANTIA AVG, Abundantia standing facing, head right, emptying cornucopia held in both hands.
Ref: RIC IV.III 10b.