1. Billon 1/2 dirham of Salih ibn Mirdas/Thamal b. Salih, Halab, 1024 - 1029. 1973.125.1 Creator: Authority: Salih ibn MirdasAuthority: Thamal b. Salih Geographic region: Mint: HalabRegion: SyriaState: Mirdasids Time period: Mirdasid Medium: Billon Extent: Weight: 2.75