Watch List notes:

Tetricus I. Romano-Gallic Emperor, AD 271-274. Antoninianus (19mm, 2.31 g, 11h). Uncertain mint. IIIII P TET[RIC]VS P F AVG, radiate, draped, and cuirassed bust right / PIITAS AVGG, implements of the pontificate: aspergillum, simpulum, capis, secespita, and lituus. Cf. RIC V 111; Mairat –; AGK –. VF, attractive green patina.

If it were not for the blundered inscriptions, this coin would most likely be an official issue, as the portrait style is well rendered.