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.
Image bears no copyright markings, as can be seen in the original uploaded file. Text on the back of the photo reads as follows: The screen's sinister Sidney [sic] Greenstreet portrays Rex Stout's world-famous orchid-fancying, beer-drinking sleuth, Nero Wolfe, over NBC BEGINNING FRIDAY, OCT. 20 (NBC, 8:30 p.m., PST; 7:00 p.m., CST). This is the 70-year-old actor's first regular radio series, although he has previously appeared on various broadcasts of radio adaptations of his motion pictures. NBC PHOTO OCTOBER 1950
This photograph appears without copyright notice in The Detective in Hollywood (1978) by Jon Tuska. An edited version (cropped and flopped) of this NBC publicity photograph fills page 60 of the hardcover edition.
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