Constantine VI & Irene, 780-797. Miliaresion (Silver, 21 mm, 1.65 g), Constantinopolis. IҺSЧS XRISTЧS ҺICA Cross potent set on three steps. Rev. COҺS/TAҺTInO/S S IRInIЄ/ C ΘЄЧ bA/SILIS in five lines. DOC 4a. SB 1595. Heavy traces of overstriking, otherwise, very fine.
This coin was overstruck on an Umayyad dirhem, with considerable parts of the undertype still visible.