20th century German colour guide published in the book Colour Primer (Die Farbenfibel, 1921) by German chemist and Nobel laureate Wilhelm Ostwald (1853-1952). | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Science History Institute |
Taille de l’image : | 3734 px × 4680 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |