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.
The works were published without any copyright (the backs of the images are blank), and there was no copyright registered with the US Copyright office.
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inception
1958
media type
image/jpeg
checksum
cfbc57346126c973d0e0dd08f33dbd19e41e46e4
determination method: SHA-1
data size
19,312 byte
height
500 pixel
width
360 pixel
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