Probus, Bi antoninianus, Ticinum. 22mm, 4.24 g. 

IMP C PROBVS AVG CONS II, Radiate bust left, wearing
imperial mantle and holding eagle-tipped sceptre.
VIRTVS AVG, Mars walking right, holding spear and trophy
Mintmark PXXT. 

RIC V-2 Ticinum 432. 
Rare

With permission of auctiones.ch, eAuction #42, Lot 92. Nov. 2015.
Estimate: CHF 50.00