Watch List notes:

Tacitus. A.D. 275-276. AE antoninianus (23.40 mm, 3.60 g, 11 h). Serdica mint. IMP C M CL TACITVS AVG, Radiate, draped and cuirassed bust of Tacitus right / PROVIDEN DEOR, Providentia standing right, with two standards, facing Sol with raised hand and golbe, star between them. RIC V 196. EF.