Rule, Regula, Pointer and Alidade Images
Alidade Image:
| Date | ca.1715 |
| Maker | ‘Abd al-A’imma |
| Place | Iṣfahān |
| Material | Brass |
| Inventory no. | 37321 |
| Acquisition | Presented by Lewis Evans in 1924 |
Alidade
| Appearance | Tip | Sights | Pinholes | Notches | Description |
|---|---|---|---|---|---|
| Double-ended, replacement. | Simple | Rigid | Double | None | The alidade does not appear to be original - the brass has a different sheen to it and the general construction seems at odds with the rest of the instrument.. |