Date |
ca. 1500 |
Place |
Italy (?) |
Material |
Brass |
Inventory no. |
35146 |
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, original. |
Gothic, simple |
None |
None |
None |
May be later in date like the alidade. |
Scales
Range & Units |
Numbered |
Geometry |
Location |
Declination |
0 - 24 Degrees |
Every 10 degrees |
Linear |
Rule |
Declination |
0 - 70 Degrees |
Every 10 degrees |
Linear |
Rule |
Alidade
Appearance |
Tip |
Sights |
Pinholes |
Notches |
Description |
Double-ended, counter-changed,
original. |
Gothic, simple |
None |
None |
None |
This crude alidade
might be a later replacement. Both sighting vanes have
broken off. |