This image is in the public domain because according to the Copyright Law of Ghana ("Copyright Act, 2005, Act 690", р. 5/2005), "Work is not copyrighted if the work is:

1. Law, sub-law act or other kind of law act.
2. Official materials of state authorities or materials published by any other person or institution which do public function.
3. Official translations of materials of state authorities or translation of materials published by any other person or institution which do public function.
4. Any of acts in judgment processes."
   

Hence it is assumed that this image has been released into public domain.

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.

This non-U.S. work was published in 1929 or later, but is in the public domain in the United States because it was simultaneously published (within 30 days) in the U.S. and in its source country and is in the public domain in the U.S. as a U.S. work (no copyright registered, or not renewed).

---

For background information, see the explanations on Non-U.S. copyrights . Note: in addition to this statement, there must be a statement on this page explaining why the work is in the public domain in the U.S. Additionally, there must be verifiable information about previous publications of the work.