Large refracting telescope at the Potsdam Astrophysical Observatory,Germany. Engraving from Die Naturkrafte by Wilhelm M Meyer (Leipzig,1903) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / UIG / Universal History Archive |
Taille de l’image : | 2333 px × 3756 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |