On the occasion of the 100th anniversary of WILD Heerbrugg, today Leica Geosystems AG and part of Hexagon, Heerbrugg, Switzerland.
- History of the production site of WILD Heerbrugg
- History of Heinrich Wild
- Explanation of the functions of the T2 theodolite
- Information about the WILD T2 and its comparison to other surveying techniques of its time
- Animated 3D models of the theodolite
- Animated view of the light beam moving through the prisms of the theodolite
- The morphology of the T2 theodolite from 1921 to 1965 (3D models)