| Description | Date | Identifier | |
| Authorising a payment of £6.5.0d to Cornercrofts for work on five discs for chassis 9.B.V. | 10th Mar 1939 | Box 160 \ 1 scan0089 | |
| Request to send an official order to Cornercroft Ltd. for five special steel discs for chassis 9.B.V. | 10th Mar 1939 | Box 160 \ 1 scan0090 | |
| Requesting the return of a loaned wheel disc to Messrs. Cornercroft Ltd. | 24th Mar 1939 | Box 160 \ 1 scan0091 | |
| Letter to Cornercroft Ltd. regarding a sample steel wheel disc and requesting a quotation for a revised design. | 24th Mar 1939 | Box 160 \ 1 scan0092 | |
| Letter from Cornercroft Ltd. regarding a sample set of discs and a quote for further orders. | 27th Mar 1939 | Box 160 \ 1 scan0093 | |
| Loan of a cover and tube to Messrs. Cornercroft Ltd. | 25th Mar 1939 | Box 160 \ 1 scan0094 | |
| Letter to Cornercroft Ltd. regarding the despatch of a 6.50 x 16 cover and tube on loan. | 25th Mar 1939 | Box 160 \ 1 scan0095 | |
| The despatch of one R.R. hub cap on loan to Cornercroft Ltd. | 28th Mar 1939 | Box 160 \ 1 scan0096 | |
| Letter to Cornercroft Ltd. regarding a wheel nut and a drawing for engraving on discs. | 28th Mar 1939 | Box 160 \ 1 scan0097 | |
| Letter from Cornercroft Ltd. concerning the completion and dispatch of a sample set of discs, and arranging a meeting to discuss new designs. | 31th Mar 1939 | Box 160 \ 1 scan0098 | |
| Letter of thanks to Messrs. Cornercroft Ltd. for expeditiously sending wheel discs. | 3rd Apr 1939 | Box 160 \ 1 scan0099 | |
| Seeking approval for payment of an invoice from Cornercroft Ltd. for experimental outer discs and special hub caps. | 26th Apr 1939 | Box 160 \ 1 scan0100 | |
| Authorising the payment of £15 for a special set of wheel discs from Cornercrofts. | 27th Apr 1939 | Box 160 \ 1 scan0101 | |
| Letter to Cornercroft Ltd. regarding the fitment of an 'Ace' disc to a front wheel assembly. | 1st May 1939 | Box 160 \ 1 scan0102 | |
| Letter to Messrs. Cornercroft Ltd. regarding a delay in sending a sample wire wheel. | 15th May 1939 | Box 160 \ 1 scan0103 | |
| Requesting to delay the return of loaned materials from Messrs. Cornercroft pending a decision on standardisation. | 17th May 1939 | Box 160 \ 1 scan0104 | |
| Letter to Cornercroft Ltd. regarding issues with welding outer discs to steel wheels and seeking an alternative method. | 23th May 1939 | Box 160 \ 1 scan0105 | |
| Arranging the loan of a steel wheel and press-on cap to Cornercroft Ltd. | 26th May 1939 | Box 160 \ 1 scan0106 | |
| Letter to Cornercroft Ltd. regarding the design and quotation for possible wheel discs. | 26th Jun 1939 | Box 160 \ 1 scan0107 | |
| Request for a quote for a stainless steel spring from Messrs. Cornercroft Ltd. | 26th Jun 1939 | Box 160 \ 1 scan0108 | |
| Letter to Cornercroft Ltd. regarding a drawing of a steel wheel and a sample wire wheel for Bentley production. | 27th Jun 1939 | Box 160 \ 1 scan0109 | |
| Letter from Cornercroft Ltd. discussing pricing and specifications for wheel discs and hub caps. | 27th Jun 1939 | Box 160 \ 1 scan0110 | |
| Letter to Messrs. Cornercroft Ltd. requesting the supply of a part called a 'spider'. | 28th Jun 1939 | Box 160 \ 1 scan0111 | |
| Dispatch of a 6.50 x 16 wheel and tyre on loan to Messrs. Cornercroft Ltd. in Coventry. | 28th Jun 1939 | Box 160 \ 1 scan0112 | |
| Letter from Cornercroft Ltd. acknowledging receipt of a letter and advice note regarding a wheel. | 29th Jun 1939 | Box 160 \ 1 scan0113 | |
| Covering order for experimental wheel disc parts from Cornercroft Ltd. | 30th Jun 1939 | Box 160 \ 1 scan0114 | |
| Follow-up letter regarding the return of a loaned 6.50 x 16 Cover and Tube. | 1st Jul 1939 | Box 160 \ 1 scan0115 | |
| Return of a loaned cover and tube from Cornercrofts. | 3rd Jul 1939 | Box 160 \ 1 scan0116 | |
| Letter from Cornercroft Ltd. arranging a meeting to discuss outstanding points and a sample of stainless steel. | 3rd Jul 1939 | Box 160 \ 1 scan0117 | |
| Confirming arrangements for Hope's visit to Cornercroft Discs in Coventry. | 4th Jul 1939 | Box 160 \ 1 scan0118 | |
| Letter from Cornercroft Ltd. regarding a quotation for the manufacture of wheel discs and stainless steel caps. | 11th Jul 1939 | Box 160 \ 1 scan0119 | |
| Quotation from Cornercroft Ltd. for the supply of wheel discs and tools. | 11th Jul 1939 | Box 160 \ 1 scan0120 | |
| Design and pricing of wheel discs for the Corniche model. | 13th Jul 1939 | Box 160 \ 1 scan0121 | |
| Letter to Messrs. Cornercroft Ltd. regarding a quotation and testing of two types of wheel discs. | 13th Jul 1939 | Box 160 \ 1 scan0122 | |
| Letter from Cornercroft Ltd. regarding a quotation for wheel discs and a forthcoming drawing for Scheme 2. | 14th Jul 1939 | Box 160 \ 1 scan0123 | |
| Three possible forms of ornamentation for steel wheel cover discs, including costs and model application. | 15th Jul 1939 | Box 160 \ 1 scan0124 | |
| Loan and despatch of two wheels to Messrs. Cornercroft Ltd. | 18th Jul 1939 | Box 160 \ 1 scan0125 | |
| Letter from Cornercroft Ltd. regarding the supply of experimental wheel discs for Scheme 1. | 17th Jul 1939 | Box 160 \ 1 scan0126 | |
| Letter from Cornercroft Limited offering to produce an experimental set of 'Scheme 1' upon return of samples. | 20th Jul 1939 | Box 160 \ 1 scan0127 | |
| Letter to Cornercroft Ltd. regarding wheel disc arrangements, requesting a drawing of the 'spider' component before proceeding. | 20th Jul 1939 | Box 160 \ 1 scan0128 | |
| Letter from Cornercroft Ltd. confirming a drawing is being made for a 'spider' part. | 21th Jul 1939 | Box 160 \ 1 scan0129 | |
| Letter from Cornercroft Ltd. regarding a drawing of a 'Steel Spider' and an order for ten sets of Discs. | 24th Jul 1939 | Box 160 \ 1 scan0130 | |
| Letter to Messrs. Cornercroft Ltd. discussing a drawing for a steel spider and suggesting modifications for a grease seal. | 25th Jul 1939 | Box 160 \ 1 scan0131 | |
| Design objections and a proposed new design for steel wheel discs. | 10th Aug 1939 | Box 160 \ 1 scan0132 | |
| The arrival and preparation of wheel discs for the Corniche model. | 11th Aug 1939 | Box 160 \ 1 scan0133 | |
| Letter to Cornercroft Ltd. regarding a drawing for steel wheels and a request to produce a set of discs for testing. | 21th Aug 1939 | Box 160 \ 1 scan0134 | |
| Letter from Cornercroft Ltd. regarding a modified spider arrangement and the supply of a set of discs. | 22th Aug 1939 | Box 160 \ 1 scan0135 | |
| Telegram specifying that wing lamps should be made from aluminium. | 23th Aug 1939 | Box 160 \ 1 scan0136 | |
| Letter to Messrs. Cornercroft Ltd. regarding screw-on wheel discs and the material for wing lamps. | 23th Aug 1939 | Box 160 \ 1 scan0137 | |
| Discussions with Cornercroft Ltd. regarding the fitment and dithering issues of Bentley V wheel covers and discs. | 24th Aug 1939 | Box 160 \ 1 scan0138 | |
| Non-returned model used for making discs and the decision to bear the cost. | 19th Oct 1939 | Box 160 \ 1 scan0139 | |
| Charge from Cornercroft Ltd for work on wheel discs and seeking confirmation of receipt. | 21th Nov 1939 | Box 160 \ 1 scan0140 | |
| Requesting further particulars about wheel discs. | 22th Nov 1939 | Box 160 \ 1 scan0141 | |
| Invoice from Cornercroft Ltd for work on experimental wheel discs. | 25th Nov 1939 | Box 160 \ 1 scan0142 | |
| Confirming receipt of wheel discs and authorising payment for them. | 27th Nov 1939 | Box 160 \ 1 scan0143 | |
| Letter from Cornercroft Ltd. regarding a conversation about manufacturing two special sets of wheel discs and hub caps. | 15th Feb 1940 | Box 160 \ 1 scan0144 | |
| Letter to Messrs Cornercroft Ltd. regarding the despatch of wheels and a request for discs. | 19th Feb 1940 | Box 160 \ 1 scan0145 | |
| Letter from Cornercroft Ltd. regarding Ace Wheel Discs for Bentley, explaining that detail drawings are unavailable due to a recent fire. | 14th Oct 1940 | Box 160 \ 1 scan0146 | |
| General arrangement drawing for an 'ACE' wheel disc. | 7th Nov 1940 | Box 160 \ 1 scan0147 | |
| Design of wheel discs for the 'Myth' model. | 7th Nov 1940 | Box 160 \ 1 scan0148 | |
| Page from 'The Autocar' magazine titled 'Useful Hints and Tips' with handwritten notes on body design. | 8th Aug 1907 | Box 160 \ 2 scan0001 | |
| Article from 'The Autocar' magazine discussing car body design principles, including streamline form, weight distribution, and frame distortion. | 8th Aug 1914 | Box 160 \ 2 scan0002 | |
| Article from 'The Autocar' magazine discussing car body design, weight distribution, and frame distortion. | 8th Aug 1914 | Box 160 \ 2 scan0003 | |
| Article from 'The Autocar' magazine discussing considerations for car body design, focusing on chassis rigidity and flexibility. | 8th Aug 1914 | Box 160 \ 2 scan0004 | |
| Article from 'The Autocar' magazine titled 'Light Car Talk' discussing the author's car experiences and carburettor performance. | 8th Aug 1914 | Box 160 \ 2 scan0005 | |
| Road acceleration and tractive resistance tests to investigate performance variations between similar cars. | 1st Mar 1923 | Box 160 \ 2 scan0006 | |
| Road acceleration and tractive resistance tests. | 26th Feb 1923 | Box 160 \ 2 scan0007 | |
| Analysis of horsepower curves, mechanical efficiency, and performance comparison between different car models. | 26th Feb 1923 | Box 160 \ 2 scan0008 | |
| Report page analysing mechanical efficiency from graphs, noting a significant power drop between the clutch and road wheels. | 5th Mar 1923 | Box 160 \ 2 scan0009 | |
| Letter accompanying a road performance report for a standard 40/50 chassis with medium compression. | 5th Mar 1923 | Box 160 \ 2 scan0010 | |
| Letter discussing a formula for calculating tire resistance and applying it to a 40/50 touring car. | 28th Mar 1923 | Box 160 \ 2 scan0011 | |
| Comparison of horsepower loss and rolling resistance for different tire sizes and inflation pressures. | 28th Mar 1923 | Box 160 \ 2 scan0012 | |
| Study on the effect of tyre inflation and deflation on vehicle speed and performance for a 40/50 HP and GOS.11 model. | 26th Apr 1923 | Box 160 \ 2 scan0013 | |
| The gradients and contours of Hazel-wood Hill and Swinscoe Hill. | 26th Apr 1923 | Box 160 \ 2 scan0014 | |
| Letter correcting a calculation slip concerning tyre resistance, horsepower loss, and inflation pressures. | 1st May 1923 | Box 160 \ 2 scan0015 | |
| Comparison of speeds with different tyre pressures on a 6-EX car. | 2nd May 1923 | Box 160 \ 2 scan0016 | |
| Tractive resistance tests on a 3-EX Car with Canadian Dunlop Cord Tyres at different pressures. | 1st Jun 1923 | Box 160 \ 2 scan0017 | |
| Graph showing the effect of tyre pressure on tractive resistance for well-worn tyres. | 1st Jun 1922 | Box 160 \ 2 scan0018 | |
| Graph showing tyre horsepower versus inflation pressure, submitted by Dunlop. | 1st Jun 1922 | Box 160 \ 2 scan0019 | |
| Graph showing the variation of horsepower consumed by a tyre over time as its temperature increases. | 1st Jun 1923 | Box 160 \ 2 scan0020 | |
| Tests carried out to prove the effect of tyre pressures on maximum speed. | 1st Jun 1923 | Box 160 \ 2 scan0021 | |
| Test report on the effect of tyre pressures on 40/50 performance. | 1st Jun 1923 | Box 160 \ 2 scan0022 | |
| Tyre tests, covering effects on speed, tractive resistance, and fuel consumption. | 1st Jun 1923 | Box 160 \ 2 scan0023 | |
| Page discussing the effect of tyre pressure on petrol consumption. | 25th May 1923 | Box 160 \ 2 scan0024 | |
| Comparison of laboratory and road test figures for cord tyres, highlighting discrepancies in rolling resistance due to deflation. | 25th May 1923 | Box 160 \ 2 scan0025 | |
| Analysis of petrol consumption figures based on the tractive resistance of hard versus soft tyres. | 19th Jun 1923 | Box 160 \ 2 scan0026 | |
| Data sheet showing wind resistance and tyre losses in horsepower at various speeds. | 17th Aug 1923 | Box 160 \ 2 scan0027 | |
| Graph comparing the tractive resistance of standard tyres versus balloon tyres at various speeds. | 24th May 1925 | Box 160 \ 2 scan0028 | |
| Letter from Dunlop Rubber Co Ltd discussing tractive resistance test results for cord and canvas tyres. | 10th Sep 1923 | Box 160 \ 2 scan0029 | |
| Summary of tests on the tractive resistance of pneumatic tyres. | 1st Mar 1920 | Box 160 \ 2 scan0030 | |
| Letter from Dunlop Rubber Co. Ltd. discussing the properties and considerations of Balloon Tyres. | 8th Jan 1924 | Box 160 \ 2 scan0031 | |
| Diagrams and calculations for the EAC-1 steering system, including centre point steering and pivot backward lean. | 8th Jan 1924 | Box 160 \ 2 scan0032 | |
| The performance tests of the 46-PK trials car, comparing its speed and engine to the 107-MG model. | 1st Feb 1924 | Box 160 \ 2 scan0033 | |
| Issues with steering and braking performance, and modifications to improve them. | 2nd Feb 1924 | Box 160 \ 2 scan0034 | |
| The increase in speed expected from a 35% increase in power, analysing tractive resistance. | 1st Feb 1924 | Box 160 \ 2 scan0035 | |
| The method of determining the tractive resistance of a touring car at 60 M.P.H. and over. | 26th Feb 1923 | Box 160 \ 2 scan0036 | |
| Tractive resistance and horsepower requirements for a touring car. | 1st Feb 1924 | Box 160 \ 2 scan0037 | |
| Breakdown of wind resistance figures for various car components, based on wind-tunnel tests. | 1st Feb 1924 | Box 160 \ 2 scan0038 | |
| Inquiry to Messrs. Bolton & Paull regarding wind resistance testing for cars. | 19th Feb 1924 | Box 160 \ 2 scan0039 | |
| Letter from Boulton & Paul Ltd confirming they will carry out wind channel tests on 1/10th scale models. | 21th Feb 1924 | Box 160 \ 2 scan0040 | |
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