ARAB-BYZANTINE: Standing Emperor, ca. 670-690, AE fals (4.82g), Dimashq, year "17", A-3517.1, dagger or sword above the T to left, with annulet below, blundered Greek legend to right // capital M, totally blundered date formula left & right, cross above, mint name in Arabic below, overstruck on undetermined host, pleasing patina, VF, R.
Estimate: 90-120 USD