ISLAMIC, Arabia. Najahids. al-Mansur ibn Jayyash, AH 487-503 / AD 1094-1109. 1/2 Dinar (Electrum, 18 mm, 1.15 g, 11 h), citing the Najahid ruler as 'al-Mu'ayyad', Zabid, without date. Album A1075. Extremely rare. Struck from slightly worn dies and with a few light scratches, otherwise, good very fine.