Note: RIC lists legend 2 (IMP C M AVR PROBVS AVG), bust A and cites Milani.
However, Milani (LV 3620, p. 146) lists only IMP C PROBVS P F AVG which is congruent with Pink, as below.

4th emission of Ticinum, 278 CE.

RIC 425 corr.; Pink p. 64[52], new rev. with leg. 5; Ticinum. Bust type F. Denomination: Antoninianus.

OBV.: IMP C PROBVS P F AVG

Radiate, cuirassed bust right.

REV.: VICTORIA GERM

Trophy between two captives.

Mintmark: // VIXXT

Weight: 3.46 g.
Die axis: ?
Diameter: ?

Image provided courtesy of Philippe Gysen