English: Poster for the 1931 film Honor Among Lovers.
The photo has no copyright marks on it as can be seen at links and original upload. At bottom right are some numbers and Country of USA 3083. At lower left is This poster leased from Paramount Publix Corporation and more numbers. The numbers likely refer to the print job for the poster.
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.