1. Silver dirham of al-Hasan al-A'sam ibn Ahmad, Dimashq, 362 H. 1917.216.664 Creator: Authority: al-Hasan al-A'sam ibn Ahmad Date: 362 AH Geographic region: Mint: DimashqRegion: SyriaState: Qarmatids Time period: Qarmatid Medium: Silver Extent: Diameter: 25.0Weight: 3.4