This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs. 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 (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties. العربية ∙ Deutsch ∙ English ∙ español ∙ français ∙ galego ∙ italiano ∙ 日本語 ∙ 한국어 ∙ македонски ∙ português ∙ português do Brasil ∙ русский ∙ sicilianu ∙ slovenščina ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/−

I searched the US govt. copyright records renewal site (http://cocatalog.loc.gov) and found the publication "The Saturday Evening Post" had renewed its copyrights from April 1, 1950 but not before. The search was for "The Saturday Evening Post" with the "Resort results by:" field set to "(Date) ascending." I went through quite a few of the initial pages to make sure nothing was missed (the years did go up). Considering that 5104 entries were shown, the search is accurate; the publication opted not to renew copyrights prior to 1950, and so they are now in the public domain.