NAJJAHID: al-Mansur b. Jayyash, 1094-1109, AV ½ dinar (1.14g), Zabid, ND, A-A1075, the ruler 's name actually written as al-Mu 'ayyad, either the proper name recorded as al-Mansur (based on examples in the Tübingen Collection), or the brother of al-Mansur, style identical to the common contemporary half dinar of the Sulayhid Queen 'Arwa bint Ahmad, EF, RRR. There are no examples of this ruler (either spelling) on Zeno & CoinArchives.
Estimate: 200-300 USD