| Description | Date | Identifier | |
| Magazine page from 'The Motor' covering news on car taxes, parliamentary questions for motorists, and industry events. | 20th Jun 1939 | Box 27 \ 3 Scan123 | |
| Race report from 'The Motor' magazine about the Le Mans race, won at a record speed. | 20th Jun 1939 | Box 27 \ 3 Scan124 | |
| Magazine page from 'The Motor' with a continuing report on the 1939 Le Mans 24-hour race. | 20th Jun 1939 | Box 27 \ 3 Scan125 | |
| Page from 'The Motor' magazine reporting on the 1939 Le Mans race. | 20th Jun 1939 | Box 27 \ 3 Scan126 | |
| Magazine page reporting on the Le Mans race and other general motoring news. | 20th Jun 1939 | Box 27 \ 3 Scan127 | |
| Outlining the reorganisation of departmental duties concerning service and proving engineering. | 23th Jun 1939 | Box 27 \ 3 Scan128 | |
| Pouch left behind by Trethewey, which is being sent on by bag. | 27th Jun 1939 | Box 27 \ 3 Scan129 | |
| Request for two boards to support sandbags on the roof of an experimental car. | 27th Jun 1939 | Box 27 \ 3 Scan130 | |
| Circulating a board resolution regarding officials participating in record-making competitions. | 29th Jun 1939 | Box 27 \ 3 Scan131 | |
| To all departments regarding restrictions on trunk calls and procedures for private telephone calls. | 29th Jun 1939 | Box 27 \ 3 Scan132 | |
| Letter from 'The Motor' magazine highlighting articles of interest from their June 1939 issues. | 4th Jul 1939 | Box 27 \ 3 Scan133 | |
| Letter announcing new cars and a technical review on 'Valves and Valve Seat Inserts' for 'THE MOTOR' publication. | 7th Jul 1939 | Box 27 \ 3 Scan134 | |
| The disposal of a 5-gallon tin of scrap oil. | 7th Jul 1939 | Box 27 \ 3 Scan135 | |
| Revising nightshift hours due to a blackout in July 1939. | 11th Jul 1939 | Box 27 \ 3 Scan136 | |
| Requesting an update on the position of a list of outstanding experiments and parts. | 13th Jul 1939 | Box 27 \ 3 Scan137 | |
| Authorizing the purchase of surplus sample oil by an employee. | 14th Jul 1939 | Box 27 \ 3 Scan138 | |
| Outlining the company policy on the use of private cars for business, including expenses and insurance. | 20th Jul 1939 | Box 27 \ 3 Scan139 | |
| Instruction to the Insurance Office for an employee to withdraw their National Health and Unemployment cards for a period of embodiment. | 26th Jul 1939 | Box 27 \ 3 Scan140 | |
| To all testers requesting assistance to improve and standardise the format of reports, including the use of photography and sketches. | 2nd Aug 1939 | Box 27 \ 3 Scan141 | |
| Letter from 'The Motor' magazine summarizing July articles on streamlining, new cars, and technical reviews. | 3rd Aug 1939 | Box 27 \ 3 Scan142 | |
| Page 2 of a letter from the Technical Editor of 'The Motor' magazine discussing future articles and road tests. | 9th Aug 1939 | Box 27 \ 3 Scan143 | |
| Listing outstanding jobs and parts required for various engines, listed in order of urgency. | 9th Aug 1939 | Box 27 \ 3 Scan144 | |
| Programme of work to be carried out on various chassis and cars for the week commencing 14.8.39. | 11th Aug 1939 | Box 27 \ 3 Scan145 | |
| Status report and task list for various vehicles, including checks, adjustments, cleaning, and coachbuilding work. | 11th Aug 1939 | Box 27 \ 3 Scan146 | |
| Brief typed memo confirming a scheduled attendance at the Works. | 12th Aug 1939 | Box 27 \ 3 Scan147 | |
| Listing the order of urgency for experimental work on various projects. | 12th Aug 1939 | Box 27 \ 3 Scan148 | |
| Debit Advice No.118 for an Air France Ticket from Franco Britannic Autos Ltd. | 14th Aug 1939 | Box 27 \ 3 Scan149 | |
| Letter to the Automobile Association recommending a hotel for an A.A. recommendation. | 21th Aug 1939 | Box 27 \ 3 Scan150 | |
| Cover note for a pamphlet regarding safety Ignition Connections. | 21th Aug 1939 | Box 27 \ 3 Scan151 | |
| L.M. & S. special saloon and a note written to Mr. Short of the English Electric Co. | 22th Aug 1939 | Box 27 \ 3 Scan152 | |
| Letter to English Electric Co. Ltd. declining a request for two special engines. | 22th Aug 1939 | Box 27 \ 3 Scan153 | |
| Communication to English Electric Co. regretting inability to supply a suitable engine for railway saloons. | 22th Aug 1939 | Box 27 \ 3 Scan154 | |
| That factory sirens and lights are to be used for A.R.P. purposes only, not for timekeeping. | 1st Sep 1939 | Box 27 \ 3 Scan155 | |
| To all superintendents detailing the implementation of a two-shift working system due to a present emergency. | 2nd Sep 1939 | Box 27 \ 3 Scan156 | |
| Announcing staff appointments for Air Raid Precaution (A.R.P.) and Evacuation roles. | 5th Sep 1939 | Box 27 \ 3 Scan157 | |
| Letter from 'The Motor' magazine discussing content changes and recent articles at the start of wartime. | 11th Sep 1939 | Box 27 \ 3 Scan158 | |
| Letter from 'THE MOTOR' magazine's Technical Editor outlining upcoming articles and recent road tests. | 11th Sep 1939 | Box 27 \ 3 Scan159 | |
| Letter from 'The Motor' magazine to W.A. Robotham announcing the temporary suspension of sending road test reprints. | 12th Sep 1939 | Box 27 \ 3 Scan160 | |
| Request for a list of staff and their abbreviations for the Glasgow location. | 12th Sep 1939 | Box 27 \ 3 Scan161 | |
| List of Glasgow staff members, their positions, and their corresponding abbreviations. | 14th Sep 1939 | Box 27 \ 3 Scan162 | |
| Requesting arrangement of payment for pieces that have been received and are in order. | 14th Sep 1939 | Box 27 \ 3 Scan163 | |
| Letter from Ferodo Ltd. introducing a nephew's company for potential work on precision aero-parts. | 18th Sep 1939 | Box 27 \ 3 Scan164 | |
| Temperature-operated switch for a Bentley chassis. | 20th Sep 1939 | Box 27 \ 3 Scan165 | |
| Letter to J.N. Longley of Messrs. Ferodo Ltd., regarding subcontracting work. | 20th Sep 1939 | Box 27 \ 3 Scan166 | |
| Typed note regarding a lunch invitation for LHS's visit. | 21th Sep 1939 | Box 27 \ 3 Scan167 | |
| Announcing the merger of the Alum Foundry and Die Casting Foundry into a single department, with related staff appointments. | 21th Sep 1939 | Box 27 \ 3 Scan168 | |
| Correcting transposed captions for Dornier Do 215 and Do 17 aircraft recognition drawings in 'Flight' magazine. | 21th Sep 1939 | Box 27 \ 3 Scan169 | |
| General Trade Licences, their cost, conditions for surrender, and rebate. | 21th Sep 1939 | Box 27 \ 3 Scan170 | |
| Announcing the appointment of Mr. E.G. Florence as Chief First-Aid and Ambulance Officer. | 22th Sep 1939 | Box 27 \ 3 Scan171 | |
| Notifying of an attached letter concerning the appointment of Wing Commander J. Oliver as overseer. | 22th Sep 1939 | Box 27 \ 3 Scan172 | |
| Letter from the Air Ministry regarding the appointment of overseers to engine constructors' works to accelerate development and production. | 20th Sep 1939 | Box 27 \ 3 Scan173 | |
| The return of glasses and the price of a gas mask. | 25th Sep 1939 | Box 27 \ 3 Scan174 | |
| The transportation of small units to Crewe and issues with parts getting lost. | 25th Sep 1939 | Box 27 \ 3 Scan175 | |
| Arranging for the despatch of urgent material to Crewe via any private car making the journey from Derby. | 26th Sep 1939 | Box 27 \ 3 Scan176 | |
| Requesting information on any alterations to the specifications of experimental cars or units. | 27th Sep 1939 | Box 27 \ 3 Scan177 | |
| Letter to T.C. Worth of The Harborough Aircraft Mfg. Co., regarding the loan of Index Cards and the return of Lloyd's Register. | 27th Sep 1939 | Box 27 \ 3 Scan178 | |
| Test report on John Graybler Aero Sparking Plugs submitted by Sir Malcolm Stewart. | 27th Sep 1939 | Box 27 \ 3 Scan179 | |
| Notification of a change of address for The Associated Ethyl Company Limited. | 2nd Oct 1933 | Box 27 \ 3 Scan180 | |
| Letter to Captain Bird thanking him for his previous correspondence. | 28th Sep 1939 | Box 27 \ 3 Scan181 | |
| Letter from the Divisional Petroleum Office regarding the procedure for petrol allocation. | 29th Sep 1939 | Box 27 \ 3 Scan182 | |
| Listing machines to be moved to Hyde Road, Hendon, and noting that only 12 will be sent. | 29th Sep 1939 | Box 27 \ 3 Scan183 | |
| Requesting Standardization Sheets be sent to a recipient for signature. | 29th Sep 1939 | Box 27 \ 3 Scan184 | |
| The design of a test rig for Vulture auxiliary gearboxes and the need for a suitable power unit. | 29th Sep 1939 | Box 27 \ 3 Scan185 | |
| Appointing Mr. Anderson to be in charge of matters relating to the rationing of petrol within the company. | 30th Sep 1939 | Box 27 \ 3 Scan186 | |
| Internal request to order an ink-stand and a coat cupboard for an office. | 30th Sep 1939 | Box 27 \ 3 Scan187 | |
| Rm. to F. requesting copies of previous and future memos on installation subjects. | 2nd Oct 1939 | Box 27 \ 3 Scan188 | |
| From Rm to Dor requesting a copy of a previous memo and all future similar memos. | 2nd Oct 1939 | Box 27 \ 3 Scan189 | |
| Requesting the supply of two Tan-Sad chairs for the Aero weight analysis job. | 2nd Oct 1939 | Box 27 \ 3 Scan190 | |
| Requesting permission to draw additional petrol from company tanks due to an insufficient allowance for business travel. | 3rd Oct 1939 | Box 27 \ 3 Scan191 | |
| Letter of introduction for a supplier interested in providing filters for test beds. | 3rd Oct 1939 | Box 27 \ 3 Scan192 | |
| The availability of a rig for testing Vulture auxiliary gearboxes. | 3rd Oct 1939 | Box 27 \ 3 Scan193 | |
| Requesting an enclosed item be passed on as the mailing van does not call at Duffield. | 3rd Oct 1939 | Box 27 \ 3 Scan194 | |
| Setup of a new subcontract office in Glasgow, based on learnings from the Belper office. | 3rd Oct 1939 | Box 27 \ 3 Scan195 | |
| Flowchart detailing the functioning of the Derby Sub-Contract office. | 4th Oct 1939 | Box 27 \ 3 Scan196 | |
| Request for an oak desk and chair for an office. | 4th Oct 1939 | Box 27 \ 3 Scan197 | |
| Minutes of the first Power Plant Interchangeability Sub-Committee Meeting. | 4th Oct 1939 | Box 27 \ 3 Scan198 | |
| The lack of standardisation for S.B.A.C. Group III engines and a discussion on panel designs. | 4th Oct 1939 | Box 27 \ 3 Scan199 | |
| Visitor's pass to inspect test beds and a recommendation to see EJJ at the Glasgow Factory first. | 4th Oct 1939 | Box 27 \ 3 Scan200 | |
| Notice about changing the delivery of periodicals to once a week due to the 'existing state of hostilities'. | 4th Oct 1939 | Box 27 \ 3 Scan201 | |
| Confirming receipt of instructions and attaching a copy of a previous memo. | 5th Oct 1939 | Box 27 \ 3 Scan202 | |
| Conference report on an engine 'cutting out' issue with the Boulton-Paul Defiant aircraft. | 21th Feb 1939 | Box 27 \ 3 Scan203 | |
| Engine cut-out issues and modifications for Defiant and Hurricane aircraft. | 5th Oct 1939 | Box 27 \ 3 Scan204 | |
| Letter to M. Wilks of The Rover Company Ltd., regarding the type of oil used in aero engines. | 5th Oct 1939 | Box 27 \ 3 Scan205 | |
| Cover sheet for a report on a visit to the United States of America. | 26th May 1939 | Box 27 \ 3 Scan206 | |
| Visit to the U.S.A. regarding the standardisation of aero engine and aircraft components. | 15th May 1939 | Box 27 \ 3 Scan207 | |
| Index for international discussions on the standardisation of aero engines, aircraft parts, and aviation fuels. | 15th May 1939 | Box 27 \ 3 Scan208 | |
| Table of contents and introduction for a report on aero engines and accessories, following visits to American firms. | 15th May 1939 | Box 27 \ 3 Scan209 | |
| Aircraft engine production and development at Pratt & Whitney and Wright Aeronautical, including details on current models and future concepts. | 15th May 1939 | Box 27 \ 3 Scan210 | |
| American aircraft engine developments, including notes on Allison's V-12 and 'W' 24-cylinder engines. | 15th May 1939 | Box 27 \ 3 Scan211 | |
| Various aircraft engines, including specifications and performance details from competing manufacturers. | 15th May 1939 | Box 27 \ 3 Scan212 | |
| Various engine components, focusing on the development and performance of big end bearings. | 15th May 1939 | Box 27 \ 3 Scan213 | |
| Engine bearing loads and supercharger development, comparing American and British technologies. | 15th May 1939 | Box 27 \ 3 Scan214 | |
| Notes on American aero-engine design, specifically Pratt & Whitney and Wright Cyclone blowers and connecting rods. | 15th May 1939 | Box 27 \ 3 Scan215 | |
| Technical analysis of crankcases, crankshafts, and cylinders from Wright and Pratt & Whitney engines. | 15th May 1939 | Box 27 \ 3 Scan216 | |
| Cylinder head cracking issues and a comparison of design solutions from Wright and Pratt & Whitney. | 15th May 1939 | Box 27 \ 3 Scan217 | |
| Piston ring wear, cylinder finishes, and a comparison of various aircraft engine mounting systems. | 15th May 1939 | Box 27 \ 3 Scan218 | |
| Comparison of American and British aircraft engine oil systems, focusing on oil returns and scavenging. | 15th May 1939 | Box 27 \ 3 Scan219 | |
| New type test requirements, piston and piston ring issues, and sparking plug performance. | 15th May 1939 | Box 27 \ 3 Scan220 | |
| Reduction gears and a comparison of cartridge versus electric engine starters. | 15th May 1939 | Box 27 \ 3 Scan221 | |
| American engine starter technology, valve design, and testing procedures. | 15th May 1939 | Box 27 \ 3 Scan222 | |
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