Tacitus, silvered antoninianus, Ticinum. AD 275-276. 

IMP CM CL TACITVS AVG COS III, radiate bust left, wearing
imperial mantle, holding eagle-tipped sceptre.
PROVIDE AVG, Providentia standing left, holding globe and sceptre.

Mintmark Q. 

RIC 120 (corr.); Cohen 92; Estiot 1849, La Venera 1828.
Rare

Sold by Gorny & Mosch, April 2015.