Tacitus Antoninianus, struck AD 276 at Ticinum mint.
Obv: IMP C M CL TACITVS AVG, radiate and cuirassed bust right.
Rev: MARTI PACIF / S (in exergue), Mars advancing left, holding branch in right hand, spear and shield in left.
3,94 g, 21 mm.
RIC 145