Simple theodolite by Johannes Macarius of Modena, Italy, 1676
Made by the architect Joannes Macarius of Modena, Italy, with the inscription 'Ioannes/Macarius/Mirandolanus/Fecit Anno 1676' engraved on the alidade. Circumferentors (with a complete circle scale) and graphometers (with a half circle scale) were widely used throughout the 17th and 18th centuries to compare angles, so that the user could work out how far away a distant object was. A joint on the support allowed for both vertical and horizontal use.
- Object Number:
Overall theodolite: 370 mm x 360 mm x 100 mm, 2.7 kg
Additional alidade: 306 mm x 170 mm x 15 mm,
- simple theodolite
- furnishing and equipment
- measuring device - instrument
- Fulgence, Mons. (Paris)
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