1. Billon dirham of Yahya b. Ismail, M. Tulaytula, xxx H. 1969.222.1123 Creator: Authority: Yahya b. Ismail Geographic region: Mint: M. TulaytulaRegion: Maghrib Time period: Dhu'l-Nunid Medium: Billon Extent: Diameter: 23.0Weight: 5.635