German armed forces maps, gazetteers, and geographic charts of the United Kingdom, 1939-1944. Includes detailed study produced by the Commander in Chief of the German Air Force concerning the organisation of the RAF, the strengths and locations of British aircraft production facilities, the location of RAF flight schools, airfields and anti-aircraft facilities, the location and strengths of RN facilities in Britain and the North Sea, and British aircraft carrier strengths, 1939; German harbour atlas and gazetteer produced and distributed by the Commander in Chief of the German Air Force, entitled Seehafensatlas Großbritannien, detailing in 1:50,000 maps and aerial photographs, naval harbours and ports in Britain, 1940; German Navy High Command map books of naval ports and harbours in the United Kingdom, their associated agricultural and heavy industries production rates, defence facilities, and geographical locations, 1940; map books issued by the Commander in Chief of the German Air Force, entitled Luftgeographisches Einzelheft Großbritannien, detailing the location of British heavy industry, gas works, water works, aircraft and naval production facilities in Britain, including 1:21,120 maps, 1940; German Army High Command book, entitled Militärgeographie Angaben über Irland, and detailing in photographs the towns, cities and countryside of Ireland and Northern Ireland; German Army Command gazetteer of Ireland and Northern Ireland, entitled Militärgeographie Angaben über Irland, listing county sizes, numbers of inhabitants, population densities, industries, and harbour and port facilities in Ireland and Northern Ireland, 1940; German Army High Command gazetteers of Britain, listing alphabetically towns and cities, their longitude and latitude co-ordinates, their respective counties, numbers of inhabitants, industrial and agricultural production rates, and trains station facilities, 1941; map book distributed by the Commander in Chief of the German Air Force, entitled Britische Flugrüstungsindustrie, detailing the location, size, and production rate of ship-building and aircraft production centres in Great Britain, 1941; map books distributed by the Commander in Chief of the German Air Force including detailed photographs, 1:100,000 and 1:250,000 maps, longitude and latitude co-ordinates, population density statistics, and points of reference notes for town and cities in Britain, 1943-1944

Papers and photographs relating to Wilson's career, 1928-1990, especially his service as test pilot for British and captured German aircraft, 1937-1945, setting the world air speed record, 1945, and his role as Commandant, Empire Test Pilots' School, 1945-1947, including three flying log books, 1928-1944; typescript copy of unpublished memoir entitled 'Icy calm. Recollections of a wartime test pilot', written in [1972]. One hundred and seventy four official and personal photographs relating to Wilson's career, 1930-[1950], including damaged Bristol Bulldog fighter, crash landed by Wilson, UK, 1931; captured German aircraft Heinkel He111, Junkers Ju88, Messerschmitt Me109, Messerschmitt Me110 and Italian Fiat CR42 [1941-1945]; testing of CAM (Catapult Assisted Merchantman) aircraft launch apparatus and tests on Fairey Fulmar, Blackburn Shark and General Aircraft Hotspur gliders with RATOG (Rocket Assisted Take-Off Gear), 1941-1942; Empire Test Pilots' School students under instruction and in flight, 1945-1947; photographs of De Havilland Mosquito, Avro Lancaster, Hawker Tempest, Supermarine Spitfire, Gloster Meteor and De Havilland Vampire, 1945-1947; prototype of Planet Aircraft Satellite, 1948-1949. Contemporary reports, memoranda and official and personal correspondence, 1937-1990, including typescript memorandum by Wilson entitled 'Pilot's impressions of the [Blackburn] Botha', 1940; typescript report by Wilson entitled 'Observations of fighter requirements', 1940; typescript report by Wilson entitled 'Tactical trials and other observations on the De Havilland E6/41 (known as the DH100 Spider-Crab, later renamed Vampire) with Halford H1 engine', 1944, and Empire Test Pilots' School student's confidential report for Sqn Ldr J G Mann, RAF, Course No 3, 1946; typescript report by Cyril Francis Caunter entitled 'A historical summary of the Royal Aircraft Establishment 1918-1948', 1949; correspondence with potential publishers for Wilson's memoir, 1972-1990. Publications, 1946-1972, including two editions of The Times, 1946 and 1947, edition of The Aeroplane with article on the Empire Test Pilots' School, 1946, and booklet entitled 'Empire Test Pilots' School Personnel Supplement. List of graduates 1943-1972 and present staff' [1972].

Papers of ACM Sir Neil Wheeler including training account, report, press cuttings and photographs, 1939-1991, notably a comprehensive report on the Royal Air Force Operations in Malaya, June 1948-March 1949, produced by Air Headquarters, Royal Air Force Malaya, May 1949; text for talk by Wheeler on early aerial photographic reconnaissance, delivered at a Royal Air Force Historical Society seminar, 1991; undated detailed account of training for, planning and leading wing strikes against shipping convoys, 1942-1943. Cutting of article 'Cameramen of the Air: Photographing bomb damage - vital work of RAF PRU'S (Photographic Reconnaissance Units)', from The Times, 1 Sept 1943. Printed maps of Norwegian, English, French and German coastlines, [1942], with handwritten annotations. Album of Photographic Reconnaissance Unit photographs, 1940-1941, many with captions, showing locations in France, the Netherlands, Germany and Norway including: Brest harbour; anti-aircraft fire over Cherbourg; Morlaix; Brest; Chateau Bougon Aerodrome, Nantes; Nantes; St Nazaire; La Rochelle; La Pallice; Rochefort; Bordeaux; Dunkirk, showing wrecks on beaches; Le Havre; Zeebrugge; Boulogne; railway yards near Calais; Vlissingen Aerodrome; Antwerp; Ter Neuzen; Flushing; St Inglevert Aerodrome; Knickerbein W/T beam stations; Amsterdam; Ijmuiden; Gravelines; the Nordzee Canal; Caen; Schipol aerodrome; Stavanger; Bergen; Egersund Port; convoys in the Skaggerak area; Herl-Herdla Aerodrome; Lista aerodrome; Kiel; Bremerhaven; Brunsbuttel; Wilhelmshaven; The Hague; Dieppe; Rotterdam; Poix Aerodrome; Ostend; also photograph of shelling damage in Guernica, Spain, 2 Jun 1941; photograph of office showing maps and operations board for 8 Apr 1941; printed map with drawn annotations showing the ranges in nautical miles of medium range, long range, super long range and extra super long range Spitfires from Wick, St Eval and Heston. Loose photographs, 1939-1943, many with captions, showing: aircraft including a Maryland, a Swordfish, a Hawker Fury and a Heyford; Wheeler and colleagues at airfields in Wick, Scotland and St Eual, Cornwall, 1941; Wheeler and aircrew of 236 Squadron, 1943. Also painting of the insignia of 236 Squadron.

One hundred and three photographs relating to Wardman's RAF service, [1932-1944], including eighty three, mostly captioned, aerial photographs of North West Frontier Province, India [1932]-1934; photographs of RAF aircraft including Westland Wapiti Mk IIA, Avro Tutor, Hawker Hector [1932-1939]; three photographs of Wardman in No 3 (Indian) Wing RAF sports teams, Quetta, India, 1934; group photograph with Wardman and RAF pilots '46th Flying Instructors Course, Central Flying School, September-December 1935'; group photograph captioned 'No 612 (County of Aberdeen) (AC) (Army Co-operation) Squadron, Auxiliary Air Force, July 1938'; group photograph captioned '1935 600 City of London Fighter Squadron', group photograph captioned 'Brough [Yorkshire], January 1939', group photograph in front of Bristol Blenheim bomber [1940], Airspeed Horsa upon Salisbury plain [1944], group photograph captioned '296 Sqn Airborne Forces Headquarters', photograph of 296 Sqn badge, group photograph of RAF officers 1944, group photo of RAF Officers with Italian badge captioned 'East Colne 1945', two photographs of Handley Page Halifax bombers from towing gliders on crossing of Rhine March 24 1945, group photo of Norway visit, photo of Halifax taking off captioned ''R' for Mo, Joe' [1945], group photo captioned 'Celebration! promotion to Wg Cdr'. Also small Union flag displayed on the first British truck taken to France, and later used by the French Army, Aug 1914, (the flag originally belonged to a relative of Wardman who worked for Vulcan Motor and Engineering Company, Crossens, Southport, Lancashire).

US Strategic Bombing Survey, Civil Defense Division, report entitled Target Report of Civilian Defense Division Field Team No 82, covering air-raid protection facilities and allied subjects in the city of Hamburg, Germany, 1945. The report is in two volumes. The first volume contains the field report of the US Strategic Bombing Survey, Civil Defense Division, and includes information on the organisation and operation of German civil defence, including fire control and incident control precautions; German passive defence installations and precautions, including gas protection and camouflage; information on German evacuation techniques and civil defence training measures. The second volume contains photographic, manuscript, and typescript exhibits for the first volume. Included in the second volume are population figures of Hamburg, 1940-1945; damage statistics for dwellings, cultural buildings, and industrial buildings, 1940-1945; statistics on those killed during the bombing of Hamburg, 1940-1945; organisation of German anti-aircraft divisions; organisational chart of German air raid personnel; photographs of oil refinery and storage fires caused during Allied bombing raids in Jul 1943; photographs of civilians killed during Allied bombing raid in Jul 1943; translation of German instructional regulations on how to handle the dead; report on the activities of German medical and emergency personnel; statistics on the heavy raids on Hamburg, 24 Jul-3 Aug 1943; reports of interviews with German civil servants, police and fire personnel, and air defence personnel.

The Papers of the President's Science Advisory Committee, 1957-1961 are microfilmed copies of meeting minutes, correspondence, agenda, scientific reports and studies from the President's Science Advisory Committee (PASC), 1957-1961. The records of the PASC in the Eisenhower administration detail science policy, 1957-1961, primarily relating to arms control and disarmament through nuclear power; space; medical research; and particle physics. The PASC records include minutes and agenda from PASC's regular monthly meetings; minutes from the annual meetings with Eisenhower, compiled by PASC Executive Officer David Beckler; reports, speeches, studies and correspondence relating to the North Atlantic Treaty Organization (NATO) Space Project, US Strategic Air Command; satellite communications; nuclear testing; nuclear propulsion; early warning defence systems; US and Soviet biological and chemical warfare capabilities; US aircraft development, the US National Aeronautics and Space Administration (NASA) Lunar Program; ocean surveillance projects; the Television Infrared Observation Satellite Program; the Apollo lunar Program; US anti-submarine warfare capabilities; Soviet scientific progress, 1957-1961; US missile programs and radar and radio astronomy advancements. Microfilm also includes correspondence and memoranda between PASC and Eisenhower; Emanuael Piore, PASC consultant and research director for IBM; Alan Waterman, President of the National Science Foundation; Senator Henry M Jackson; and presidential adviser Gen Andrew Jackson Goodpaster.

The Soviet Estimate: US Analysis of the Soviet Union, 1947-1991 is a themed microfilm collection which presents an integrated record of US intelligence estimates and studies relating to Soviet strategic projections, military capabilities, science and technology, economics and internal politics, 1946-1991. The estimates and studies were produced either collectively as national intelligence products or by individual agencies, and include contributions from the US Central Intelligence Agency (CIA); the Director of Central Intelligence; the US Defense Intelligence Agency; and, the US State Department. The collection includes CIA and British Secret Intelligence Service debriefing transcripts of former Soviet Gavnoye Razvedyvatelnoye Upravleniye (GRU), Chief Intelligence Directorate, Soviet General Staff, operative Oleg V Penkovskii, relating to Soviet military organisation and plans for nuclear war, Soviet nuclear targets and deployments in Europe, missile technology and launch sites, Soviet military personnel, the capture of Capt Francis Gary Powers, US Air Force U-2 High Altitude Reconnaissance Aircraft pilot, 1 May 1960, profiles of Soviet military officers, locations of Soviet nuclear weapons tests, Soviet intelligence organisations and Soviet chemical and biological weapons programs, Soviet development and deployment of Inter-Continental Ballistic Missiles (ICBMs), positions of Soviet divisions in East Germany, and the Berlin Crisis (1958- 1962), 20 Apr-14 Oct 1961; yearly US estimates of Soviet strategic capabilities, 1947- 1983, including the 'missile gap' National Intelligence Estimates, 1957-1961; detailed estimates of the Soviet space program, including National Intelligence Estimates (NIEs) relating to lunar exploration, manned space flight, reconnaissance satellites, space exploration, space weapons and weapons development, 1962-1967; US Air Force report entitled 'A History of Strategic Arms Competition: Volume 3, A Handbook of Selected Soviet Weapons and Space Systems', including data relating to Soviet air to surface missiles (AS), Tupolev bomber aircraft, M-4 / Mya-4 / 2M Myasishchev ('Bison') aircraft, space weapons, communication satellites, electronic intelligence capabilities, surface to surface (SS) theatre missiles and ICBMs, Intermediate Range Ballistic Missiles (IRBMs), Submarine-Launched Ballistic Missiles (SLBMs), Jun 1976; US intelligence community experiment in competitive analysis conducted by the CIA 'B Team' relating to US misperceptions of Soviet strategic objectives and offensive and defensive forces, Dec 1976; report from the US Department of State entitled 'History of the Strategic Arms Competition 1945-1972, parts 1 and 2', including detailed surveys and analyses of Soviet and US decision making on nuclear forces, force deployments, and nuclear strategies, Mar 1981; Special National Intelligence Estimate relating to Soviet support for international terrorism and revolutionary activities, including mention of arms transfers, military training, political violence, and terrorist activities in Africa, Asia, Europe, Latin America and the Middle East, May 1981; reports from the CIA concerning Soviet perspectives on research and development in energy-directed weapons and involvement in space weapons and Strategic Defense Initiative (SDI) research, 1985; National Intelligence Estimates relating to General Secretary of the Soviet Communist Party Mikhail Sergeyevich Gorbachev's prospects for reforming the Soviet economic and political system, including mention of his economic agenda and its implications for the Soviet military program, the dynamics of Soviet civil-military relations, the impact of reforms on labour production, health, standards of living and technological development, and the rise of civil unrest and nationalism in the Soviet Union, 1985- 1989; CIA report concerning the probabilities of a coup d'etat in the Soviet Union and the growing influence of Chairman of the Russian Republic Supreme Soviet, Boris Nikolayevich Yeltsin, May 1991.

Papers of Ralph Thrale, 1916-1984, mainly relating to the Royal Observer Corps, including: memoir 'Seaborne', co-authored by Thrale, detailing experiences of Thrale and a colleague while Royal Observer Corps 'Seaborne' volunteers posted to merchant shipping as aircraft identifiers, 1944; Thrale's Royal Navy certificate of service, 1944, and Royal Observer Corps certificate of war service, 1946.The collection also includes publications collected by Thrale on related topics, including books: Aircraft of the fighting powers by H J Cooper and O G Thetford (Harborough Publishing Company, Leicester, 1941); Britain's wonderful Air Force edited by Air Cdre Peregrine Forbes Morant Fellowes (Odhams Press, London, 1942); Forewarned is forearmed: the authorized history of the Royal Observer Corps by T E Winslow (William Hodge & Co, London, 1948) and Observers' tale: the story of Group 17 of the ROC edited by H Ramsden Whitty, Commandant, 17 Group, Royal Observer Corps (London, 1950). Journals: The Journal of the Royal Observer Corps Club, Oct 1941-Nov 1942 and an incomplete run of Aircraft recognition Sep 1942-Sep 1984. Ministry of Information publications: The Battle of Britain, August-October 1940 (HMSO, 1941); Coastal Command (HMSO, 1943) and Combined Operations, 1940-1942 (HMSO, 1943). Also The Bystander's Fragments from France, volumes of cartoons by Bruce Bairnsfather detailing life in the trenches (numbers 1-6, c 1916-1918) and article, 'The reply to English propaganda' by Joseph Paul Goebbels, translated from German and reprinted from Völkischer Beobachter, 14 Jul 1939.

Papers of MRAF Sir John Slessor, 1965-1968, including: correspondence regarding the Defence Review on Naval Airpower with Air Chief Marshal Sir Charles Elworthy; W M Mills, Ministry of Defence; Edward Shackleton, Ministry of Defence; Hawker Siddeley Aviation Ltd; Air Marshal Sir Kenneth Cross, Transport Command; and others, 1965-1968, particularly debating the use of aircraft carriers. Correspondence regarding the Battle of the Atlantic with Vice Admiral Sir Peter Gretton; Capt Stephen Roskill, historian; the Air Historical Branch; the Naval Historical Branch; and others, 1966-67, including statistical analysis of efficacy of RAF and information and statistics from Air History Branch regarding U-Boat destruction, 1955. Correspondence with Capt B H Liddell Hart, 1965; with Rear Admiral Samuel Morison, USNR, 1968; with Professor Arthur Marder, 1966. Articles by Slessor relating to the Defence Review on Naval Airpower, including: 'An Integral part of the Fleet', 1964; 'The Capital Ship Complex', 1965; 'Air Power - Seabourne or Shore-based', 1965; 'Naval Air Power - Is it Worth It?', 1965; 'The Story of Jutland: Some reflections on Vol. 3 of "From the Dreadnought to Scapa Flow" - Arthur J Marder', 1966; 'Air Power and the Defence Review', 1966; 'Air Power East of Suez', 1966; 'The Purchase of the F111', 1966; 'Meeting Today's Defence Needs: Virtues of Shore-Based Planes', letter to The Times , 1968; and 'The Air League's Memorandum on Defence - January 1967', 1967. Also articles by others including: 'The case for the Aircraft Carrier' by Fletcher Pratt, and response 'The Case for Land-Based Air Power' by Francis V Drake, The Reader's Digest , 1949; German, Italian and Japanese U-Boat Casualties during the War: Particulars of Destruction , (HMSO, 1946); A memorandum on Defence , The Air League, 1967; and 'Merchant Aircraft Carriers' by Kenneth Poolman, Air Pictorial , Oct 1968.

Copies of papers and photographs relating to his military career, 1915-[1921], dated 1915-[1921], [1970-1980] and 1983, principally comprising letters to his father, 1915-1916; his flying log book, 1915-1917, covering his service with 1 Reserve Aeroplane Sqn, Royal Flying Corps, UK and with 8 and 12 Sqns, BEF, France; notes and texts of lectures relating to aerial combat tactics, produced by instructors at the Royal Flying Corps School of Aerial Gunnery, 1916; his diary, 1918, including details of his work [as an experimental pilot with the Aircraft Directorate and the Air Board]; notebook containing notes on the performance of various aircraft, [1918-1921]; 'Memoir of service with the Royal Flying Corps, 1915 and 1916', written in [1970-1980].

Papers of Wg Cdr James Redman, 1930-1943, comprise copy photographs relating to the career of Wg Cdr James Redman: aircraft including Vickers Victoria V, Bristol Type 105 Bulldog, Handley Page Heyford, Hawker Hart, Hawker Hind, and various crashed aircraft, 1930s; HMS GLORIOUS after refit as an aircraft carrier, [1935]; and group personnel photograph with an Avro Lancaster, [1943].

Official illustrated edition of RAF Middle East: The Official Story of Air Operations in the Middle East, from February 1942 to January 1943 (His Majesty's Stationery Office, London, 1945); official illustrated edition of Atlantic Bridge: The Official Account of RAF Transport Command's Ocean Ferry (His Majesty's Stationery Office, London, 1945)

Typescript unpublished memoir of Squadron Leader Harry 'Wacker' Pain, 1937-1978, including descriptions of: training as an Aircraft Apprentice, RAF Halton, 1937; wireless operator training in Wallace and Wapiti biplanes; airborne wireless operator training, RAF Driffield, 1939; working for Special Duties Flight, Coastal Command, as a gunner in long range Sunderland flying boats, 1939-1942, including survivor searches after submarine attacks, escorting convoys, account of destruction of flying boats Cabot and Caribou, Bodo, Norway, Apr 1940, training messenger pigeons, serious injury in crash and subsequent reposting as Signals Instructor, 1942, and retraining as an Air Traffic Control Officer, 1943. Also anecdotes from various postings including Nutts Corner, Northern Ireland, 1944-1946; opening a new Area Control Centre in Gibraltar, 1946; RAF Mingaladon, Burma, 1947, and RAF Negombo, Ceylon, 1948; Area Control Centre, RAF Watnall, UK, 1949; RAF Gutersloh, Germany, 1954-1957; Air Traffic Controller at RAF Coningsby, 1957-1959; assisting with the introduction of radar guided systems and the formation of Border Radar in RAF Bishops Court, County Down, Northern Ireland, 1959-1962 and RAF Boulmer, Alnwick, 1962-1964; RAF Paya Lebar, Singapore, 1964-1967; as controller, Northern Radar, RAF Lindholme, 1967-1970; RAF Patrington, Withernsea, 1970-1971; Senior Operations Officer, Border Radar, RAF Boulmer, 1971-1973.

Papers of Colonel Sir Stuart (Richard) Newman, 1916-1994, including call up and telegram, Aug 1939; letters home, [1940-1945]; two portrait photographs, [1940] and [1944]; photograph album, 1941-1942; letter to Newman, Mar 1948, from three former Luxembourg cadets, requesting confirmation of their Officer Cadet Training Unit training under Newman, 1945-1946; White Paper, 'Re-organisation of the army reserves' (HMSO, Dec 1965), and related press statement, Dec 1965, by the Council of Territorial and Auxiliary Forces Associations; correspondence, Mar 1993 - Mar 1994, relating to the future of the Territorial Army; photograph album of Newman's father, Capt Thomas Pacey Newman, 1916-[1924], and photocopy letter from Mrs Newman (wife of Thomas, mother of Stuart), to her son Roland, 9 Jun 1944, with eye witness description of planes and gliders leaving for France, evening of 6 Jun, with transcript.

Papers and photographs relating to work with UN Relief and Rehabilitation Administration in China, 1946-1947, and the Ex-Services Campaign for Nuclear Disarmament Group, 1984-1987, including four manuscript narrative diaries of Holman's military service, 1941-1945; two photograph albums with views of Egypt, Palestine, South Africa, Aden, and at sea on board HM Hospital Ship LLANDOVERY CASTLE, 1942-1945; booklet by Aubrey Hammond entitled The story of 50 Div (Schindler's Press, Cairo, 1943); papers relating to work with UN Relief and Rehabilitation Administration in China, including edition of the Canton Daily Star, 1946, 137 mostly uncaptioned photographs of urban and rural China, correspondence with UN staff and letters of appointment,references and memoranda, 1946-1947; typescript draft article by Holman on the National Health Service, 1961; sixty six editions of I F Stone's Bi-Weekly and I F Stone's Weekly, 1963-1971; edition of the King-Hall newsletter, 1966; booklet entitled The silent killers. New developments in gas and germ weapons (Campaign for Nuclear Disarmament, London, 1981); papers relating toEx-Services Campaign for Nuclear Disarmament Group, including fourteen editions of 'Ex-Services Campaign for Nuclear Disarmament Group Newsletter', 1984-1987, meeting agendas and associated leaflets and circulars; booklet entitled The soldier's tale (Ex-Services Campaign for Nuclear Disarmament Publications, Bristol, 1987). Also publications, 1937-1987, including four John Playerand Sons cigarette card albums entitled 'The Coronation of HM King George VI and HM Queen Elizabeth 1937', 'Military uniforms of the British Empire overseas' [1937], 'An album of modern naval craft' [1939], and 'Aircraft of the Royal Air Force' [1939]; booklet entitled British, French and German warships at a glance (Sampson Low, Marston and Company, London, 1940); five editions of Lilliput magazine, 1940-1944.

Also notebook including an account of Holman's service in Italy, 28 Mar - 13 May 1945 (2014 accession).

Papers, mostly photocopies, relating to Operation FRESHMAN, an abortive British-Norwegian assault on a heavy water plant at Vemork, Norway, Nov 1942, written in 1942-1945 and [1983], notably operation orders, Nov 1942; letter to Maj Pardon, dated Jul 1945, giving extracts from Henniker's report on the operation, written in [1942]; summary of information received about the movements of personnel from the crashed gliders, Jun 1945.

Papers relating to his RAF career, 1939-1951, dated [1939-1951], 1984-1985, [1987], 1991, 1993, particularly his service in the USSR, 1941, and Sweden, 1948, principally comprising photographs of Haw and his RAF colleagues, [1939-1951]; press cuttings, 1941, [1946], 1948, 1956, [1987], 1991, [1993]; 'Pilot's notes for Spitfire 22 and 24 Griffon 61 engine' (Air Publication 2816 B andC), prepared by the Air Ministry, 1947, with amendments list, 1950. Audio tape of interview with Paul Hamlin, 1993, concerning Haw's service at Coolham Airfield in 1944.

Papers relating to his RAF service, 1931-1961, principally comprising his flying log book, 1931-1954, including details of bombing missions, North West Europe, 1944-1945; unsigned typescript report recommending the rearming of No 232 Wing and No 252 Sqn with Mosquito XXVIs, [1945-1946]; photograph of portrait of MRAF Hugh Montague Trenchard, 1st Viscount Trenchard, by Francis Beresford, signed by Beresford, 1955.