Caracalla, AE27 of Trapezus, Pontus, 52.39 g, dated local year 153, AD 216-217. 14.12 g. 

AYT KA M AY ANTWNEINOC CEB, laureate, draped and cuirassed bust right.
TRAPEZOYNTIWN, ET RNG, Mithras on horseback riding right, altar to right. 

Wojan 46a (this coin); RecGen 20 var; BMC 1897-1-4-9 var (with AYΡ in obv. legend).