Small simple theodolite with fixed and moveable sights, French, 1571-1600
The scale on this circumferentor is engraved on the circle '10(10)360' clockwise, by degrees. Circumferentors (with a full circle scale) and graphometers (with a half circle scale) were widely used through the 17th and 18th centuries for angle measurement. A joint on the support allowed for both vertical and horizontal use.
- Object Number:
- simple theodolite
- furnishing and equipment
- measuring device - instrument
- Court, Thomas Henry
- Permanent collection
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