Dirham - al-Ma'mun with the name of the heir al-Rida
€1.00
| Issuer | Abbasid Caliphate |
| Year | 813-833 |
| Type | Standard circulation coin |
| Value | 1 Dirham (0.7) |
| Currency | Dinar (750-1517) |
| Composition | Silver |
| Weight | 2.89 g |
| Dimensions | |
| Thickness | |
| Shape and Technique | Round (irregular) Hammered |
| Orientation | |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | Album Islamic#224 |