• Because the INP stamp isn't very clear on the photo's back, an example of it has also been uploaded; the addresses and style of stamp match.
• Since en:Rudolph Valentino died in August 1926, the photo had to have been taken by the news agency at that time. A copyright renewal search was done in artworks for the years 1953 and 1954. This was a division of en:International News Service and was bought by United Press International in 1958. There were no results for International News Service or International News Photos.
• Further, since the back of the photo indicates that the Minneapolis Sunday Tribune published a copy of the photo on September 22, 1946, another search was done in periodical renewals for the Minneapolis Sunday Tribune for the years 1973 and 1974. There were no renewals for the newspaper.

On the basis of both searches, there's no evidence that copyright continues to be claimed on this material.

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 ∙ +/−