Links

Historical astronomical instruments:

- Martin Brunold lives as astrolabes builder in Abtwil (Switzerland)
  www.astrolabe.ch


Exhibitions and museums:

- Musée international d'horlogerie ⋅ The International Museum of Horology
  in La Chaux-de-Fonds | Switzerland
  www.mih.ch

- Mathematical Physics Salon ⋅ Collection of scientific instruments in Dresden | Germany
  www.skd.museum

Others

- Luxembourg amateur astronomers (AAL)
  www.aal.lu

- Otto Nikolaus Kruch living as an artist in Cuties | Germany
  www.kruch-art.de

- DGC - German Society for chronometry e.V. in Nuremberg | Germany
  www.dg-chrono.de

- Internationale Coronelli - Society for Study of Globes in Vienna | Austria
  www.coronelli.org

- AstroMedia-Verlag (Germany)
  www.astromedia.de