Abney level & Compass
Combination abney level + compass
This is a strange instrument, combining an abney level for vertical angles with a magnetic compass for horizontal angles. As a result it can full fill the role of a boussole theodolite but with a limited accuracy. The compass has a separate visor and is mounted on top of a regular abney level. The box it came in is probably not the original box as most of these instruments would have a leather carrying case rather than a box.
abney compass
Data sheet
- Material
- Brass
- graduation
- deg
- measuring range
- -90..90 (abney)
- accuracy
- 1 (compass)
1' (abney) - fine reading
- vernier (single)
- Size instrument (l x w x h) in m
- 0.06 x 0.19 x 0.07
- weight instrument in kg
- 0.4
- Size case (l x w x h) in m
- 0.12 x 0.20 x 0.08
- weight case & in kg
- 0.5
- country obtained from
- United Kingdom
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Combination abney level + compass