Probus, AE antoninianus. Siscia mint.

IMP CM AVR PROBVS PF AVG, radiate, cuirassed bust left,
holding spear and shield.
PM TRI P COS II PP, lion walking left, head of ox before it.
Mintmark XXIS.

RIC V-2 Siscia 611; Sear 12007 var.

Contributed by Carpe Diem Numismatics, July 2015.