Tetricus II (Caesar 273-274 A.D.) -  AE Antoninianus - 16.55mm, 2.57gr
Obverse - C P E TETRICVS CAES
Tetricus II, his radiate head right
Reverse - PIETAS AVGVSTOR
Pontificial implements.

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), p423, nr. 259, Obverse 3A
Cohen, H, "Descriptions Historique des Monnaies frappees sous l'Empire Romain" (C), Volume 6, p125, nr. 60
Van Meter, D., "Handbook of Roman Imperial Coins", p270, nr. 3
Suarez, R., "Encyclopedia of Roman Imperial Coins II" (ERIC2),  p577, nr 10 (B6, O1, R28, T20)

Quality: Good-