London (CNN) Incredibly rare World War II footage of British spy staff shot at a site connected to the famous codebreaking facility Bletchley Park has been discovered and published online.

The 11-minute video is thought to be a compilation of footage shot at the Whaddon Hall facility used by communication staff from the UK's Special Intelligence Service (SIS) -- also known as MI6 -- from 1939 to 1945, according to a press release from the Bletchley Park Trust published Friday.

During the war, Bletchley Park, a mansion in Buckinghamshire, England, was home to the British government's Code and Cypher School, where codebreakers famously cracked Nazi Germany's Enigma cypher.

It is the only wartime film of a site linked to the project and features members of MI6 Section VIII, who were responsible for passing intelligence from Bletchley Park to Allied commanders in the field.

The silent film shows MI6 workers off duty at Whaddon Hall and Whaddon Chase, as well as footage of the Whaddon fox hunt, a cricket match and a game of soccer.

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