| Date | 1925 |
| Maker | Charles Frewen Jenkin |
| Place | Oxford |
| Material | Aluminium |
| Inventory no. | 75059 |
Alidade
| Appearance | Tip | Sights | Pinholes | Notches | Description |
|---|---|---|---|---|---|
| Double-ended, original. | Flat | None | None | None | The sights have broken off. |
| Date | 1925 |
| Maker | Charles Frewen Jenkin |
| Place | Oxford |
| Material | Aluminium |
| Inventory no. | 75059 |
| Appearance | Tip | Sights | Pinholes | Notches | Description |
|---|---|---|---|---|---|
| Double-ended, original. | Flat | None | None | None | The sights have broken off. |