Open data in E-Pics Rare Books
The image catalogue E-Pics Rare Books (external link) contains over 15,000 attractive images from science and technology. They can now be downloaded for free in web resolution (1024x768) or as high-resolution JPG and TIF files.
Further images that can be used freely for private, academic or commercial purposes are constantly added to image catalogue. The pictures, illustrations and maps stem from digitised old prints, which are provided on the platform e-rara.ch and labelled with the public domain mark.