TechInfoDepot:Image copyright tags/Other

Images of unknown usability
The following tags do not adequately indicate whether they can be used on TechInfoDepot. Please add source and licence information, if not provided, and a fair use rationale if the image is being used under fair use.
 * PD-Germany — for photographic works and other images where the German photographer (or creator) died more than 70 years ago. Due to this tag's history, many images whose creators died less than 70 years ago are tagged with this tag. Source and licencing information should be added.