ARAB-BYZANTINE: Justin & Sophia type, late 7th century, AE ½ follis (3.74g), Skythopolis (Baysan), "year 7 ", A-3510, ABQ-B1 (same dies), two seated figures derived from Justin & Sophia, mint name in Greek around / capital K, X above, ANNO left, year right, I in exergue, decent strike with no weakness, VF, RRR.
Estimate: 400- 600 USD