FATIMID: al-Mustansir, 1036-1094, glass jeton/weight (1.02g), A-724, FGJ-261, 4-line text, larger than the surface of this piece: ma'add / al-imam abu / tamim al-mustansir / billah; very light yellowish green, translucent, Fine to VF, RR. Balog recorded only 1 example of this type, large size of 5.85g (for the double dirham); the weight of this piece is for the ¼ dinar.
Estimate: 150-200 USD