Rule, Regula, Pointer and Alidade Images
Alidade Image:
| Date | 1728/9 (A.H. 1141) |
| Maker | Muḥammad ibn Aḥmad al-Baṭṭuṭī |
| Place | North Africa |
| Material | Brass |
| Inventory no. | 52713 |
| Acquisition | Presented by Lewis Evans in 1924 |
Alidade
| Appearance | Tip | Sights | Pinholes | Notches | Description |
|---|---|---|---|---|---|
| Double-ended, original. | Decorative | Rigid | Double | Single |