| Date |
14th century |
| Place |
Europe |
| Material |
Brass |
| Inventory no. |
47615 |
| Acquisition |
Presented by J. A. Billmeir in
1957 |
Rule, Regula, Pointer and Alidade Images
Alidade Image:
Alidade Image:
Alidade
| Appearance |
Tip |
Sights |
Pinholes |
Notches |
Description |
| Double-ended, counter-changed,
original. |
Gothic, simple |
Rigid |
Double |
None |
|
Scales
| Range & Units |
Numbered |
Geometry |
Location |
| Unequal
hours |
2 - 6 1/12 of daylight |
Every 1 hours |
Linear |
Rule, left arm |
| Unequal
hours |
2 - 6 1/12 of daylight |
Every 1 hours |
Linear |
Rule, right arm |
