Probus, antoninianus, Rome. 24mm, 4.36 g.

IMP PROBVS AVG, radiate, helmeted and cuirassed bust left 
holding spear and shield.
ROMAE AETER, hexastyle temple with Roma seated within, holding Victory and sceptre.
Mintmark R dot in crescent gamma.

RIC V-2 Rome 186.

With permission of auctiones.ch, eAuction #42, Lot 86. 
Estimate: CHF 50.00