To the best of my knowledge, these works are made available under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: Zdzisław Beksiński (copyrights inherited by Muzeum Historyczne w Sanoku) after his death in 2005.
Distributing the collected works of an awesome Polish painter as an unseeded torrent of a single .rar file seemed inappropriate.
Fork this repo. Submit a PR if you think you can make the collection better.
Distributed version control offers a level of accountability - in this case vaguely preserving the origin of the files, while allowing us to improve the metadata, quality, and organization of the collected works.