Drawing Instruments / Reisszeuge - see all objects
Astrolabes / Astrolabien - see all objects
Dividers / Zirkel - see all objects
Protractors / Winkelmesser - all objects are sold
Sectors / Proportional Zirkel - see all objects
Miscellanous - see all objects
Collection of links regarding scientific instruments in the Web: https://www.pinterest.com/geometricum/scientific-instruments-in-the-web/