Tetricus II (Caesar 273-274 A.D.) -  AE Antoninianus - 18.96mm, 2.87gr
Obverse - C PIV ESV TETRICVS CAES
Tetricus II, his radiate, draped and cuirassed bust right
Reverse - PAX AVG
Pax standing left, holding branch and scepter.

Minted in Colonia Claudia Agrippina Augusta (Cologne), Moguntiacum (Mainz) or Treveri (Trier) in 273 or 274 A.D.

Reference:  
Webb, P.H., "Roman Imperial Coinage", Volume 5, Part 2 (RIC), p422, nr. 248, Obverse 1A
Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), Volume 6, p122-3, nr. 34
Suarez, R., "Encyclopedia of Roman Imperial Coins" (ERIC),  unlisted (B4, O10, R24, T15)

Quality: Fine+