This artistic work created by the United Kingdom Government is in the public domain
This is because it is one of the following:
- It is a photograph created by the United Kingdom Government and taken prior to 1 June 1957; or
- It was commercially published prior to 1968; or
- It is an artistic work other than a photograph or engraving (e.g. a painting) which was created by the United Kingdom Government prior to 1968.
HMSO has declared that the expiry of Crown Copyrights applies worldwide (ref: HMSO Email Reply).
More information. See also Copyright and Crown copyright artistic works.