RIC 642, Siscia. Bust type F. Denomination: Antoninianus.
Pink attributes this coin to the first emission of Rome.

	OBV.: IMP C M AVR PROBVS AVG Radiate, cuirassed bust right. REV.: CLEMENTIA TEMP Clementia standing left, legs crossed, leaning on column, holding sceptre. Mintmark: / XXIZeta Image provided courtesy of Michel Prieur, CGB.