Probus, AE antoninianus, Serdica.

IMP CM AVR PROBVS AVG, radiate bust left, wearing imperial 
mantle, holding eagle-tipped sceptre.
SOLI INVICTO, Sol, holding whip, in spread quadriga facing.
Mintmark KAA

RIC V-2 862.
Common.

Contributed by T&S Petrov, August 2012.