| Date |
late 16th century |
| Place |
Flanders |
| Material |
Brass |
| Inventory no. |
45365 |
| Acquisition |
Purchased from H. E. Backer in
1952 |
Rule, Regula, Pointer and Alidade Images
Alidade Image:
Alidade Image:
Rule Image:
Rule Image:
Rule
| Appearance |
Tip |
Sights |
Pinholes |
Notches |
Description |
| Double-ended, counter-changed,
original. |
Decorative |
None |
None |
None |
|
Scales
| Range & Units |
Numbered |
Geometry |
Location |
| Declination |
0 - 70 Degrees |
Every 10 degrees |
Linear |
Rule, left arm |
| Declination |
0 - 25 Degrees |
Every 10 degrees |
Linear |
Rule, right arm |
Alidade
| Appearance |
Tip |
Sights |
Pinholes |
Notches |
Description |
| Double-ended, counter-changed,
original. |
Decorative |
Rigid |
Double |
None |
The bolt that secures the rete
and the plates is integrated into the alidade. |
Scales
| Range & Units |
Numbered |
Geometry |
Location |
| Equal
hours |
2 - 12 Times of day |
Every 1 hours |
Linear |
Rule, right arm |
| Equal
hours |
1 - 10 Times of day |
Every 1 hours |
Linear |
Rule, left arm |
