Papers and photographs relating to Caunter's career, 1908-[1960], including one photograph album, containing 90 photographs, newspaper cuttings and invitations, 1908-1933, notably photographs of Crefeld POW camp, Germany, 1916, Caunter's return to UK following his escape from Schwarmstedt POW camp, Germany, 1917, group photographs of officers, Staff College, Camberley, Surrey, 1922-1923 and Senior Officers Course, Hythe, Kent, 1927, with thirty five loose photographs, 1909-1941, including Salonika, 1918, Iraq, 1920-1921, Egypt, 1936, and Western Desert, Libya, 1941. Papers relating to the First Libyan Campaign, Western Desert, 1940-1941, and Caunter's command of 4 Armoured Bde in the capture of Fort Capuzzo, Battle of Beda Fomm, Libya, Feb 1941, including typescript memorandum by Caunter entitled 'Notes on the disposal of prisoners captured by AFV (Armoured Fighting Vehicle) units', 1 Oct 1940; two typescript 7 Armoured Div intelligence summaries, Dec 1940; typescript memorandum by Caunter entitled 'Some lessons from the campaign', [1941]; typescript account entitled 'The story of the 4th Armoured Brigade in the First Libyan campaign', Western Desert, 1940-1941; two letters from Capt Basil Henry Liddell Hart, dated Jan 1947 and Dec 1951, relating to Caunter's deployment of armoured forces in the Battle of Beda Fomm, Western Desert, Feb 1941. Memoranda and reports relating to Caunter's service as Brig General Staff and Deputy Director of Staff Duties, Armoured Troops, General Headquarters, India, 1941-1943, including typescript memorandum by Caunter, 'Defence of the North West Frontier of India and appreciation' [1942]; typescript report by Lt Col Rothwell H Brown, US Army, 'Report of conditions noted in armoured units and ordnance establishments by the US Army Tank Training Detachment', 10 Nov 1942; edition of Tanks and tank folk by Eric Kennington (Country Life, London, 1943).

Two pilot's flying log books, 1933-1937 and 1937-1960. Typescript 'Report on GAF (German Air Force) night fighting from the interrogation of prisoners' by Wing Cdr W K Davison, Officer Commanding 88 Sqn, RAF [1944]; typescript report by James Lansdale Hodson entitled 'Night fighters' [1944]; typescript memorandum by Slade, 'Notes for new crews' [1944]; typescript 'Report on GAF night fighter system. A post mortem' [1945]. Photograph album with uncaptioned photographs of Slade's RAF service in Egypt and Iraq, 1933-1937. Fifteen photographic negatives and 185 photographs, 1933-1960, including aerial photographs of terrain, Iraq, 1934-1937, group photographs, 1942-1945, and Fairey Aviation Limited aircraft in flight [1960], notably the Gannet and the Rotodyne.