Case details and confessions from some of the members of the so-called Cambridge Five spy ring have also been provided to the National Archives as part of the exhibit. Kim Philby, Anthony Blunt ...

Philby, Maclean, Blunt and 'fifth man' Cairncross became synonymous with treachery at the heart of the British establishment. A KGB agent names the Cambridge spy ring's 'fifth man'.

Blunt, who died at his home in Highgate, North London, in 1983 at the age of 75, was the fourth member of the infamous Cambridge spy ring, who betrayed Britain to Moscow during the Cold War.

His British passport has also been displayed for the first time. Guy Burgess was part of the Cambridge Five spy ring and fled to Moscow to avoid being discovered in 1951 (Jonathan Brady/PA ...

He was a member of the Cambridge Five spy ring and fled to Moscow with fellow traitor Donald Maclean due to fears of being uncovered. Image: The Krogers' 'flash transmission' radio equipment ...

Burgess's British passport is also being exhibited for the first time. He was a member of the Cambridge Five spy ring and fled to Moscow with fellow spy Donald Maclean in 1951 due to fears of ...

The members of the ring were Donald Maclean (1913 - 1983 ... NKVD (later KGB), the Soviet security agency. While teaching at Cambridge University, Blunt was influential in recruiting the other ...

He was a member of the Cambridge Five spy ring and fled to Moscow with fellow spy Donald Maclean in 1951 due to fears of being discovered. None of the Cambridge Five were ever prosecuted for spying.

He was a member of the Cambridge Five spy ring and fled to Moscow with fellow spy Donald Maclean in 1951 due to fears of being discovered. None of the Cambridge Five were ever prosecuted for spying.