Watch List notes:

Tacitus. A.D. 275-276. Æ antoninianus (22 mm, 3.49 g, 5 h). Serdica, June, A.D. 276. IMP C TACITVS INVICTVS P F AVG, radiate, draped and cuirassed bust of Tacitus right / PRO-VIDEN D-EOR, Fides Militum standing facing, head right, holding two standards, facing Sol standing left, extending arm and holding globe; KAΔ. RIC 196; BN p. 407. Very rare - only six examples recorded in RIC V online, one of which is noted as being a cast forgery. A few minor deposits on brown patina. Good very fine.