The photo is taken from a 1935 book with no author and no copyright notice. It has been faithfully reproduced and released under a Creative Commons Noncommercial 3.0 license. However, since this is a faithful two-dimensional reproduction of a work that is within the public domain, it should be within the public domain itself, at least in the United States.
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.