Leo III the "Isaurian", with Constantine V, 717-741. Miliaresion (Silver, 22 mm, 1.93 g, 12 h), Constantinopolis. IҺSЧS XRISTЧS ҺICA Cross potent on globe set on three steps. Rev. LЄOҺ / S COҺST/AҺTIҺЄ Є / CΘЄЧ ЬA/SILIS in five lines. DOC 22. SB 1512. Minor scrapes and with traces of overstriking, otherwise, good very fine.
This coin was overstruck on an Umayyad dirham, with parts of the undertype still visible.