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Summary
It is not taken in 1912, as stated before. Norbert Wiener is an old man in this picture, thus this is definitely taken sometime before 1964. This gives the time of the picture as 1951. However, there is no copyright notice on it, thus it fails to comply with required copyright formalities and is therefore in the public domain.
Licensing
Public domain Public domain false false
This work is in the public domain published in the United States between 1931 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.
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