Rule, Regula, Pointer and Alidade Images
Alidade Image:
| Date | late 16th or early 17th century |
| Place | Persia (?) |
| Material | Brass |
| Inventory no. | 47063 |
| Acquisition | Lent by the Bodleian Library, Oxford, in 1952 |
Alidade
| Appearance | Tip | Sights | Pinholes | Notches | Description |
|---|---|---|---|---|---|
| Double-ended, original. | Decorative | Rigid | Single | None |