| Date |
ca. 1400 |
| Maker |
Jean Fusoris |
| Place |
Paris |
| Material |
Brass |
| Inventory no. |
39540 |
| Acquisition |
Presented by Lewis Evans in
1924 |
Rule, Regula, Pointer and Alidade Images
Alidade Image:
Rule Image:
Pointer
| Appearance |
Tip |
Sights |
Pinholes |
Notches |
Description |
| Single-ended, replacement. |
Gothic, simple |
None |
None |
None |
|
Alidade
| Appearance |
Tip |
Sights |
Pinholes |
Notches |
Description |
| Double-ended, counter-changed,
original. |
Gothic, inverted |
Rigid |
Single |
None |
|
Scales
| Range & Units |
Numbered |
Geometry |
Location |
| Unequal
hours |
2 - 11 1/12 of daylight |
Every 1 hours |
Linear |
Rule, left arm |
