Watch mechanism. Interior of an early 20th century pocket watch showing cogs and jewel bearings | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Dimijian, Gregory G. |
Taille de l’image : | 3901 px × 2550 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
|