ISLAMIC, Fatimids. al-Musta'li billah, AH 487-495 / AD 1094-1101. Dirham (Billon, 16 mm, 1.81 g, 2 h), citing al-Musta'li billah, without mint and date. In the outer margin, 'no god but Allah, Muhammad is the Prophet of Allah, Ali is the chosen one of Allah' (in Kufic). Rev. In the inner field, 'the Imam Ahmad'; in the outer margin, 'Abu'l Qasim al-Mutasa'li billah, Commander of the Faithful'; (all in Kufic). Album 727. Nicol 2431. Extremely rare. Somewhat rough and with a minor edge crack, otherwise, about very fine.
Ex Album 44, 15 September 2022, 417.
This interesting example cites al-Musta'li billah as 'al-Mutasa'li billah in error.