Fatimids. Al-Mustansir billah, AH 427-487 / AD 1036-1094. Dinar (Gold, 21.5 mm, 4.29 g), Misr (al-Fustat) mint, AH 448 =1056-1057 AD. Inscription in three concentric circles around a central pellet: inner, al-Mustansir billah amir al-mu'minin; middle, da'a al-imam mu'id li-tawhhid al-ilah al-samad; outer "bism-illah Duriba haza al Dinar bi Misr Sanat Thaman wa arba'in wa arba'a-mi'a. Rev. Inscription in three concentric circles around a central pellet: inner, la illah illa-llah Mouhammad rasul allah; middle, wa ali afdal al-wassiyin wa wazir khair al-moursalin; outer, Muhammad rasul allah arsalahou bil houda li-youzhirahou 'ala al-din kullahou wa law kariha al Moushrikoun. Album 719A. ICV 837. Nicol 2131. Lustrous, well-struck and clear. Some minor striking flatness, otherwise, good extremely fine.

Al-Mustansir was the eighth Fatimid Caliph and, ruling for 60 years, had the longest reign.