DescriptionDing Xian experimental broadcasting to combat illiteracy, Asia Magazine (1935).jpg
English: Original caption: "Crowds in the streets of eight villages of Ting Hsien listen to lectures broadcast from a station operated by the Mass Education Movement in an experimental drive against illiteracy."
This is from page 23 of the January 1935 edition of Asia. The copyright of Asia was not renewed, and hence this image is in the public domain.
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.