Probus, AE antoninianus, Siscia.

IMP CM AVR PROBVS PF AVG, radiate bust left, wearing 
imperial mantle, holding eagle-tipped sceptre.
PAX AVG, Pax standing left holding olive-branch and 
transverse sceptre.
Mintmark XXIQ.

RIC V-2 Siscia 704.
Common.

Contributed by T&S Petrov, August 2012.