Probus AE Antoninianus. AD 276-282. Rome. 

IMP PROBVS AVG, radiate, cuirassed bust right
ADVENTVS AVG, Probus on horseback left, holding sceptre, 
right hand raised, captive before. 

Mintmark R wreath B. 

RIC V-2, 157; Cohen 37. 

With permission of cgb.fr, France.