Tacitus, AE Antoninianus. Lyons mint. 

IMP CM CL TACITVS AVG, radiate, draped, cuirassed bust right
TEMPORVM FELICITAS, Felicitas standing left, holding
 caduceus and cornucopiae
Left field: Delta. Right field: A

Bastien I, 84, Cohen 143; RIC V (1) 63 var (obv. legend). Scarce.

Sold on ebay in March 2010 by French seller Philippe Lacoste.