Template:PD-UKGov

This work is in the public domain worldwide. This is because either:

It is a photograph created by the United Kingdom Government taken prior to 1 June 1957; or
It is an engraving or photograph created by the United Kingdom Government and commercially published more than 50 years ago; or
It is any other work created by the United Kingdom Government published more than 50 years ago.

See Copyright, Crown copyright artistic works (archived resource) and HMSO Email Reply.