Tacitus (275-276).     BI Antoninianus. Lugdunum (Lyon) mint, 276 AD.   Obv.    IMP CL TACITVS AVG. Radiate, draped and cuirassed bust right.        Rev.   MARS VICTOR. Mars advancing right, holding trophy and spear; to left, B; to right, A.     RIC V 30; RIC V online 3309.     3.87 g.   22.00 mm.          About VF/VF.