DescriptionTrain locomotive passes El Palo Alto, 1929.png
English: Original caption: " 'Palo Alto,' the tall tree stands where trains send withering smoke veil around it." Taken from a negative photostat found in Palo Alto Historical Society archives (folder: El Palo Alto). San Francisco News, date is October 17, 1929, found on page 10.
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.