RIC 157 Bust Type F Probus AE Antoninianus. Rome Mint. IMP PROBVS AVG, Radiate and cuirassed bust r. / ADVENTVS AVG, Emperor on horseback l., raising hand and holding a sceptre, squashed captive underfoot; R (crescent) (Gamma) in ex. Emission 4 Officina 3. Minted in 279 A.D. References RIC 157 Bust Type F (rated Common). Weight 4.54 gms. Size 24.13mm Contributed by Martin Griffiths, March, 2004.