Tacitus (275-276 A.D.) -  AE Antoninianus - 22.47mm, 3.01gr
Obverse - IMP C M CL TACITVS AVG
Tacitus, his radiate, draped and cuirassed bust right
Reverse - CONCORDIA MILITVM
XXIT in Exergue.
Tacitus standing right clasping hands of Concordia standing left.

Minted at the 5th officina in Siscia (Sisak, Croatia) 275 or 276 A.D.
Reference:  
Webb, P.H., "Roman Imperial Coinage", Volume 5, Part 1 (RIC), p344, nr. 183 (obverse 3C)
Sear, D.R., "Roman Coins and their Values" (RCV Millennium Edition), Vol. 3, p450, nr. 11772, variety
Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), nr. 21
Suarez, R., "Encyclopedia of Roman Imperial Coins" (ERIC),  p346, unlisted (B12, O02, R07, T44, M6)
Quality: Very Fine-