Rule, Regula, Pointer and Alidade Images
Alidade Image:
| Date | 16th century |
| Place | Germany |
| Material | Brass |
| Inventory no. | 39887 |
| Acquisition | Presented by Lewis Evans in 1924 |
Alidade
| Appearance | Tip | Sights | Pinholes | Notches | Description |
|---|---|---|---|---|---|
| Double-ended, counter-changed, original. | Simple | Rigid | Single | None |