Tacitus Antoninianus, struck AD 276 at Serdica mint.
Obv: IMP C M CL TACITVS P F AVG, radiate, draped and cuirassed bust right.
Rev: PROVIDEN DEOR / KA•Γ (in exergue), Fides
stg. right, holding standard in each hand, facing Sol stg. left, right
hand raised and holding globe in left hand, * between them.
RIC online 3947 (2 specimens listed)
very rare