Felt-tip pen. Coloured scanning electron micrograph of the writing point of a felt-tip pen. Magnification x20 at 6x4.5cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Power And Syred |
Taille de l’image : | 4889 px × 3694 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |