Tacitus. Antoninianus. Lyons. 275-276 AD. 

IMP CL TACITVS AVG, radiate, draped, cuirassed bust right
SALVS AVG, Salus standing right, feeding serpent in arms. 

B-A across fields. 

Bastien 80 var; RIC 58 var (standing right). Scarce.

With permission of Roma Numismatics, March, 2010