A briefcase left behind by infamous Cambridge spy Guy Burgess as he fled to Moscow in 1951 is among never-before-seen MI5 artefacts going on display at The National Archives in Kew, South-West London.

MI5 reveals never-before-seen spy secrets in National Archives Exhibition - Exhibits include Guy Burgess’s briefcase, which was left behind as he fled to Moscow, and a 110-year-old lemon used by ...