Probus AE Antoninianus. Lyons. 

IMP CM AVR PROBVS AVG, radiate bust left, wearing imperial 
mantle, holding Victory on globe.
FIDES MILITVM, Fides standing left, holding two standards. 

Mintmark III. 

RIC V-2 Lyons 28 var (bust type); Bastien 231.
Scarce.