Gordian III, AE29 of Trapezus, Pontus. Dated local year 175, AD 238-239. 27.12 g. AY K M AN GORDIANOC CEB, laureate, draped and cuirassed bust right. TRAPEZOYNTIWN, ET POE, Mithras on horseback riding right, tree behind, altar to right, star in upper right field. RecGen 45; Wojan 125-127; Grand Duc Michaelovic 1408. Sold by Gorny & Mosch auction 241, Lot 1853, Oct. 2016.