Valerian I (253-260). AE 20 mm. Alexandria Troas mint, Troas. Obv. IMP LIC VALERIA[NVS A] Laureate and draped bust right. Rev. COL AVG. Horse grazing right; in exergue, TRO. Bellinger A436. 4.82 g. 20.00 mm. Brown surfaces. About EF.