Umayyad Caliphate. temp. 'Umar ibn Abd al-Aziz. AH 99-101 / AD 717-720. AR Dirham (26.6mm, 2.77g, 5h). Ifriqiya mint. Dated AH 99 / AD 717/8. Klat 87. Light double-striking on reverse. Good VF. Extremely rare, just one specimen of this mint and date recorded by Klat.