| Description | Date | Identifier | |
| Testing of modified ball bearings and simplified rear axles on experimental cars. | 4th Jan 1941 | Box 98 \ 4 scan0169 | |
| Logbook note detailing vehicle running issues including clutch, timing gear, and carburation problems. | 30th Jan 1941 | Box 98 \ 4 scan0170 | |
| Record of a road test run to Crewe and back, detailing distance, petrol used, and petrol consumption. | 15th Mar 1941 | Box 98 \ 4 scan0171 | |
| Feedback memo on car 9-B-V's performance, noting issues with a rattling roof, a water leak, and a small petrol tank. | 23th Mar 1941 | Box 98 \ 4 scan0172 | |
| Response to customer feedback regarding a rattling sunshine roof, windscreen leak, and petrol tank capacity. | 25th Mar 1941 | Box 98 \ 4 scan0173 | |
| Letter to Hiduminium Engineering Ltd. listing problems faced in making a 'Light Alloy' car. | 4th Apr 1941 | Box 98 \ 4 scan0174 | |
| Letter from Hiduminium Engineering Ltd. postponing a visit to discuss jointing methods and a specific drawing. | 1st Apr 1941 | Box 98 \ 4 scan0175 | |
| Adverse criticisms and performance issues of a car following a run to Glasgow. | 20th Mar 1941 | Box 98 \ 4 scan0176 | |
| Driver's report on vehicle design flaws regarding the rear window and gear lever, and notes on fuel consumption. | 20th Mar 1941 | Box 98 \ 4 scan0177 | |
| Loaned vehicle, noting resolution of a water leak issue on the drive to London. | 8th Apr 1941 | Box 98 \ 4 scan0178 | |
| Specification revision for a Bentley 60 Engine Unit No.3, detailing changes to the water pump and camshaft. | 23th Apr 1941 | Box 98 \ 4 scan0179 | |
| Specification revision for Bentley 60.No.3 Unit, chassis 9-B-V, detailing part changes. | 20th May 1941 | Box 98 \ 4 scan0180 | |
| Specification revision for an induction pipe on a Bentley 60 No. 3 Unit. | 20th May 1941 | Box 98 \ 4 scan0181 | |
| Road test, reporting issues with carburation, tyres, clutch, brakes and the axle. | 16th Jul 1941 | Box 98 \ 4 scan0182 | |
| Engine failure and other issues during a journey to London in vehicle 9.B.V. | 15th Jan 1942 | Box 98 \ 4 scan0183 | |
| Revisions and parts fitted to a Bentley Chassis 9-B-V. | 17th Sep 1943 | Box 98 \ 4 scan0184 | |
| Parts list and request for blueprints concerning the Bentley 111 Chassis front axle and shock damper. | 17th Mar 1938 | Box 98 \ 5 scan0001 | |
| Listing required and non-required parts for a Bentley 111 front axle experiment. | 22th Mar 1938 | Box 98 \ 5 scan0002 | |
| Parts list and instructions for an experiment on the Bentley 111 front axle. | 22th Mar 1938 | Box 98 \ 5 scan0003 | |
| Replacement parts and blueprints for the Bentley 111 front axle. | 21th Jun 1938 | Box 98 \ 5 scan0004 | |
| Modification to the front axle pivot pin lubrication for Bentley III & Bentley 50 models. | 30th Jun 1938 | Box 98 \ 5 scan0005 | |
| Parts list for the Bentley 111 front axle and front brakes. | 5th Oct 1938 | Box 98 \ 5 scan0006 | |
| List of parts with their part numbers, descriptions, and quantities required. | 5th Oct 1938 | Box 98 \ 5 scan0007 | |
| Parts requirements for the Bentley 111 hydraulic front axle and brakes. | 11th Nov 1938 | Box 98 \ 5 scan0008 | |
| Instruction memo detailing parts for a Bentley 111 hydraulically operated front brake system. | 11th Nov 1938 | Box 98 \ 5 scan0009 | |
| Camshaft recommendation for the Bentley III unit, comparing it with the standard camshaft. | 14th Oct 1937 | Box 98 \ 5 scan0010 | |
| Modifications to the camshaft, rocker ratio, and valve train for Wraith III and Bentley III models. | 14th Oct 1937 | Box 98 \ 5 scan0011 | |
| The specifications and suitability of a camshaft for a Bentley 111. | 2nd Nov 1937 | Box 98 \ 5 scan0012 | |
| Spring-loaded thrust plunger for the camshaft on Wraith III and Bentley 111 models. | 21th Jan 1938 | Box 98 \ 5 scan0013 | |
| Request to design and create drawings for an alternative camshaft for B.III. | 12th Apr 1938 | Box 98 \ 5 scan0014 | |
| Camshaft performance and proposed modifications for the B.III engine unit. | 12th Apr 1938 | Box 98 \ 5 scan0015 | |
| Summary of test results regarding engine valve timing for optimal power across different speeds. | 12th Apr 1938 | Box 98 \ 5 scan0016 | |
| Graph comparing valve overlap and timing positions for different camshaft designs. | 13th May 1938 | Box 98 \ 5 scan0017 | |
| Requesting a trial of a new camshaft with a different firing order for a Bentley III. | 13th May 1938 | Box 98 \ 5 scan0018 | |
| Requesting a test on a new B.III camshaft and for the necessary cam form drawing to be urged. | 4th May 1938 | Box 98 \ 5 scan0019 | |
| Scheme for modifications to the Bentley III camshaft. | 16th May 1938 | Box 98 \ 5 scan0020 | |
| Camshaft dimensions, camwheel material, and associated drawings. | 16th May 1938 | Box 98 \ 5 scan0021 | |
| Specifications and changes for an alternative camshaft for the Bentley 111. | 17th May 1938 | Box 98 \ 5 scan0022 | |
| Blueprints for a Bentley 111 camshaft, Ex.S.759. | 21th May 1938 | Box 98 \ 5 scan0023 | |
| Requesting the production of a camshaft with specific design parameters. | 21th Jun 1938 | Box 98 \ 5 scan0024 | |
| New blueprints for a Camshaft L.O.P. for the Bentley III Chassis, section 5090. | 13th Oct 1938 | Box 98 \ 5 scan0025 | |
| Requesting instructions for a new Bentley III camshaft for maximum power experiments. | 17th Oct 1938 | Box 98 \ 5 scan0026 | |
| Requesting the instruction of three sets of blueprints for Bentley 111 camshaft components. | 14th Dec 1938 | Box 98 \ 5 scan0027 | |
| Index card listing file references for Wraith engine characteristics, camshafts, and Humber Super Snipe data. | 2nd Mar 1939 | Box 98 \ 5 scan0028 | |
| Update to the Bentley V Camshaft EB.3466. | 2nd Mar 1939 | Box 98 \ 5 scan0029 | |
| Wear on the I/C shaft end thrust plunger, requesting two new plungers with a hardened finish. | 3rd Jun 1939 | Box 98 \ 5 scan0030 | |
| Blueprints for a new hardened steel camshaft thrust plunger for the Bentley 111 chassis. | 13th Jun 1939 | Box 98 \ 5 scan0031 | |
| Recommended flywheel timing markings for the B.V. model. | 6th Jul 1939 | Box 98 \ 5 scan0032 | |
| The failure of a lightened Camwheel, including total running times. | 16th May 1940 | Box 98 \ 5 scan0033 | |
| Photograph of a shattered camwheel after a test bed run. | 16th May 1940 | Box 98 \ 5 scan0034 | |
| Comparison photograph of two different flywheel designs, one solid and one with lightening holes. | 1st Aug 1939 | Box 98 \ 5 scan0035 | |
| Tyre trouble being experienced on the 'Corniche' model. | 1st Aug 1939 | Box 98 \ 5 scan0036 | |
| Secret internal memo discussing dangerous failures of Avon tyres on the Corniche model and considering standardization with Dunlop tyres. | 1st Aug 1939 | Box 98 \ 5 scan0037 | |
| Providing guidance on the content of daily reports for the 'Corniche' car, particularly regarding tyre testing and other engineering issues. | 1st Aug 1939 | Box 98 \ 5 scan0038 | |
| The hand ignition control distributor moving under braking. | 1st Aug 1939 | Box 98 \ 5 scan0039 | |
| Issue of main battery leads burning and potential rerouting solutions. | 1st Aug 1939 | Box 98 \ 5 scan0040 | |
| Requesting a test on standard 6.50 x 16 Dunlop tyres on the Streamline car. | 2nd Sep 1939 | Box 98 \ 5 scan0041 | |
| Secret internal memorandum discussing tyre testing and performance for the 'Corniche' model. | 2nd Aug 1939 | Box 98 \ 5 scan0042 | |
| Schemes and modifications for the Bentley 5. Corniche exhaust system. | 3rd Aug 1938 | Box 98 \ 5 scan0043 | |
| Ventilation issues of the 'Corniche' and plans for a new 8-cylinder Paulin chassis. | 4th Aug 1939 | Box 98 \ 5 scan0044 | |
| Tyre test results, body suitability, and modifications to the ventilation system. | 4th Aug 1939 | Box 98 \ 5 scan0045 | |
| Tyre tread separation and inquiring about tyre types used on other high-performance cars. | 4th Aug 1939 | Box 98 \ 5 scan0046 | |
| Suspension issues for two cars, including torque arm fouling and a request for spare rubbers. | 5th Aug 1939 | Box 98 \ 5 scan0047 | |
| Telegram postponing wing repairs for a Corniche following a non-serious accident. | 6th Aug 1939 | Box 98 \ 5 scan0048 | |
| Accident report for a Bentley car involved in a collision with a bus in France. | 6th Aug 1939 | Box 98 \ 5 scan0049 | |
| Axle ratios for the 'Corniche' model based on tests for directional stability. | 7th Aug 1939 | Box 98 \ 5 scan0050 | |
| Responding to various points on vehicle testing, including tyres, ventilation, and engine controls. | 7th Aug 1939 | Box 98 \ 5 scan0051 | |
| List of repairs, part requests, and modifications for experimental vehicles. | 7th Aug 1939 | Box 98 \ 5 scan0052 | |
| Tyre performance during high-speed Autobahn tests for the 'Corniche' model. | 7th Aug 1939 | Box 98 \ 5 scan0053 | |
| Modifications and outstanding issues for the Corniche model at Châteauroux. | 7th Aug 1939 | Box 98 \ 5 scan0054 | |
| Improvements and outstanding issues on a vehicle, covering noise levels, steering, ventilators, and water leaks. | 7th Aug 1939 | Box 98 \ 5 scan0055 | |
| Faults and modifications on various car components. | 7th Aug 1939 | Box 98 \ 5 scan0056 | |
| Short typed message regarding the despatch of a fitter to Chateauroux, France. | 8th Aug 1939 | Box 98 \ 5 scan0057 | |
| A discrepancy between a confirmation telegram and a phone version of a message. | 9th Mar 1934 | Box 98 \ 5 scan0058 | |
| Telegram reporting that the Robotham Corniche was badly smashed. | 8th Aug 1939 | Box 98 \ 5 scan0059 | |
| Telegram received by telephone regarding a badly smashed Cornish vehicle. | 8th Aug 1939 | Box 98 \ 5 scan0060 | |
| The Corniche and chassis 30.G.VII. | 8th Aug 1939 | Box 98 \ 5 scan0061 | |
| Listing details of failed tyres with loose treads despatched for inspection from Châteauroux. | 8th Aug 1939 | Box 98 \ 5 scan0062 | |
| Enclosing Rose's report on the accident of I4.B.V. | 9th Aug 1939 | Box 98 \ 5 scan0063 | |
| Accident report for a Bentley car which skidded and rolled over to avoid a collision. | 9th Aug 1939 | Box 98 \ 5 scan0064 | |
| Accident involving the Corniche model, including driver's injuries, a witness account, and initial damage assessment. | 9th Aug 1939 | Box 98 \ 5 scan0065 | |
| Tests on the hand ignition control system and distributor modifications after encountering issues. | 9th Aug 1939 | Box 98 \ 5 scan0066 | |
| Lubrication of rear road springs to prevent creaking. | 9th Aug 1939 | Box 98 \ 5 scan0067 | |
| Car crash involving the 'Corniche' model and subsequent repair plans. | 9th Aug 1939 | Box 98 \ 5 scan0068 | |
| Private memo detailing a telegram about a car being badly smashed in France. | 9th Aug 1939 | Box 98 \ 5 scan0069 | |
| Crashed car, its 8-week repair time, and the impact on the upcoming Earls Court Show. | 10th Aug 1939 | Box 98 \ 5 scan0070 | |
| Instruction memo for ordering alternative 10/41 rear axle gears for the Bentley 5 'Corniche' EX 'A' Series. | 11th Aug 1939 | Box 98 \ 5 scan0071 | |
| Follow-up memo chasing the return of two Bentley badges sent for modification to fit the Corniche model. | 11th Aug 1939 | Box 98 \ 5 scan0072 | |
| The arrival and necessary work for wheel discs for the Corniche model. | 11th Aug 1939 | Box 98 \ 5 scan0073 | |
| Accident involving the 'Corniche' car, its impact on the Paris Salon exhibition, and driver negligence. | 11th Aug 1939 | Box 98 \ 5 scan0074 | |
| Cover memo for a report on an accident involving the Streamline car 14.B.V. | 11th Aug 1939 | Box 98 \ 5 scan0075 | |
| Request to replace a smashed Corniche frame and to contact John Thompsons. | 12th Aug 1939 | Box 98 \ 5 scan0076 | |
| Telegram confirming travel arrangements for a Mr. Robotham on a night cargo boat from Dieppe to Newhaven. | 12th Aug 1939 | Box 98 \ 5 scan0077 | |
| Request for a description of the 'Corniche' special streamline saloon chassis for inclusion in a new Bentley catalogue. | 14th Aug 1939 | Box 98 \ 5 scan0078 | |
| Telegram advising that a chassis has arrived at Newhaven and is awaiting customs clearance. | 16th Aug 1938 | Box 98 \ 5 scan0079 | |
| Cover memo attaching the specification for the 6 'Corniche' chassis. | 16th Aug 1939 | Box 98 \ 5 scan0080 | |
| Telegram received by telephone regarding a chassis dispatched by lorry. | 16th Aug 1939 | Box 98 \ 5 scan0081 | |
| Telegram confirming the dispatch of a chassis by lorry. | 16th Oct 1939 | Box 98 \ 5 scan0082 | |
| Telegram from Waller to Robotham urgently requesting brake shoes, specifying 'Ninety' as preferred. | 1st Aug 1939 | Box 98 \ 5 scan0083 | |
| To the Transport department regarding booking expenses for retrieving 14.B.V. from Newhaven. | 16th Aug 1939 | Box 98 \ 5 scan0084 | |
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