File:Hans Burkhardt's untitled, 1950.JPG

Licensing
Fair use rationale for Hans Burkhardt:
 * 1) This is a historically significant work that could not be conveyed in words.
 * 2) Inclusion is for information, education and analysis only.
 * 3) Its inclusion in the article(s) adds significantly to the article(s) because it shows the work of the subject of the article.
 * 4) The image is a low resolution copy of the original work and would be unlikely to impact sales of prints or be usable as a desktop backdrop.