From the case:
Tam o' shanter hat (photo)

This 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 taken prior to 1 June 1957; or
- It was published prior to 1970; or
- It is an artistic work other than a photograph or engraving (e.g. a painting) which was created prior to 1970.
HMSO has declared that the expiry of Crown Copyrights applies worldwide