Rule, Regula, Pointer and Alidade Images
Alidade Image:
| Date | 15th or 16th century |
| Place | Persia |
| Material | Brass |
| Inventory no. | 41261 |
| Acquisition | Presented by Lewis Evans in 1924 |
Alidade
| Appearance | Tip | Sights | Pinholes | Notches | Description |
|---|---|---|---|---|---|
| Double-ended, replacement. | Decorative | Rigid | Single | None | The rule is crudely graduated with equally spaced lines. The left arm was repaired. It looks to be a replacement.. |