Rule, Regula, Pointer and Alidade Images
Alidade Image:
Alidade Image:
| Date | 1653/4 (A.H. 1064) |
| Maker | Ḍiyā’ ad-Dīn Muḥammad |
| Place | Lahore |
| Material | Brass |
| Inventory no. | 38862 |
| Acquisition | Presented by J. A. Billmeir in 1957 |
Alidade
| Appearance | Tip | Sights | Pinholes | Notches | Description |
|---|---|---|---|---|---|
| Double-ended, replacement. | Simple | Rigid | Single | None | The alidade is almost certainly a replacement; the metal and the finish are distinctly different from the rest of the instrument. |