All artworks in the photographs are in public domain due to age. The photographs of two-dimensional objects are also in the public domain. Photographs of three-dimensional objects and all descriptions have been released under the Creative Commons Attribution-Share Alike 3.0 Unported License and the GNU Free Documentation License.
You are free to download and use the images and descriptions on this website under the licenses named above, but if you desire digital images at a higher resolution, for scholarly or commercial publication, please contact our photo services department.