Rule, Regula, Pointer and Alidade Images
Alidade Image:
| Date | 1733/4 (A.H. 1146) |
| Maker | Muḥammad ibn Aḥmad al-Baṭṭuṭī |
| Place | Morocco |
| Material | Brass |
| Inventory no. | 51459 |
| Acquisition | Presented by J. A. Billmeir in 1957 |
Alidade
| Appearance | Tip | Sights | Pinholes | Notches | Description |
|---|---|---|---|---|---|
| Double-ended, Fixed and imovable, replacement. | Decorative | Rigid | Single | None | There is some decorative scroll work close to the pivot hole on this alidade.. |