Fatimids. al-'Aziz billah. AH 365-386 / AD 975-996. AR Dirham (23.5mm, 2.73 g, 10h). Sur mint. Dated AH 368 (AD 978/9). Cf. Nicol 612 (dated AH 369). Softly struck on a slightly curved flan with some resulting weakness. VF. Of the highest rarity, apparently unpublished.