English: Parapsychologist Helmut Schmidt testing a subject in a random number generator experiment.
Date
before 1978
date QS:P,+1978-00-00T00:00:00Z/7,P1326,+1978-00-00T00:00:00Z/9
Source
Anonymous photograph published with no copyright notice. The photograph features the parapsychologist Helmut Schmidt and was taken in the early 1970s.
Author
AnonymousUnknown author
Licensing
Public domainPublic domainfalsefalse
This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.