Zeměměřické a astronomické přístroje používané na území ČR od 16. do konce 20. století
Gottlieb Friedrich Schubert established a workshop in Freiberg, Saxony, in 1771, which became known for the production of plane tables, clinometers and mine-measuring instruments, especially compass instruments. In 1791, the workshop was taken over by Johann Gottfried Studer, a mechanic of the Mining Academy, and he introduced new devices, mainly theodolites, into production.
From 1823 the company was run by Wilhelm Friedrich Lingke, who further expanded it . In collaboration with the Munich physicist and optician Joseph Fraunhofer, the author of the production of optical glass and achromatic telescopes, they built an astronomical and triangulation theodolite as the pinnacle of the company's production. In 1859 the company was taken over by his son August Friedrich Lingke, 10 years later the mechanic Schramm became his business partner. The company also produced, for example, Nagel’s plummets for connecting surveys. The company was taken over in 1873 and was made famous by its employee, the excellent designer Max Hildebrand.
