Exchange of notes between the Government of the United Kingdom of Great Britain and Northern Ireland and the Egyptian Government extending the relevant provisions of the Suez Canal Base agreement of October 19, 1954 to the "Contractor" and to British civilian technicians located at Abou Sueir Airfield and Fanara Flying Boat Station : Cairo, June 24, 1956 (Cmd. (Great Britain. Parliament) ;, 1956)