This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice . For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. 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 (50 p.m.a. ), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

This image depicts a flag of a Dutch municipality or province. These flags are registered with the Hoge Raad van Adel . Usage of the flag is often restricted by municipal rules and laws. In view of Dutch legislation, this image is regarded as being in the public domain , as are reproductions of this flag.