Rule, Regula, Pointer and Alidade Images
Alidade Image:
| Date | 16th century (?) |
| Place | North Africa |
| Material | Brass |
| Inventory no. | 37527 |
| Acquisition | Lent by the Bodleian Library, Oxford, in 1952 |
Alidade
| Appearance | Tip | Sights | Pinholes | Notches | Description |
|---|---|---|---|---|---|
| Double-ended, original. | Simple | Rigid | Single | None |