| Description | Date | Identifier | |
| Vehicle history note detailing mileage confirmation, accident repairs, clutch work, and decarbonisation. | 30th Sep 1938 | Box 89 \ 5 scan0036 | |
| Letter requesting a check-up on a second-hand Bentley, providing chassis and engine numbers. | 19th May 1939 | Box 89 \ 5 scan0037 | |
| Mileage and personal regards from Jack Bethall. | 19th May 1939 | Box 89 \ 5 scan0038 | |
| Letter from R.R. Jackson of Brooklands inquiring about a training scheme and high compression pistons for a 1939 Bentley. | 19th May 1939 | Box 89 \ 5 scan0039 | |
| Letter of inquiry regarding the price, ratio, and fitting advice for a set of six pistons. | 19th May 1939 | Box 89 \ 5 scan0040 | |
| Letter detailing the history and recommending checks for a second-hand car, chassis B.181.A.E., before purchase. | 23th May 1939 | Box 89 \ 5 scan0041 | |
| Page two of a letter addressed to The Hon. J. Bethell regarding confidential accident details. | 23th May 1939 | Box 89 \ 5 scan0042 | |
| Customer's experimental modification to a propeller shaft damper to fix a clutch 'jagger' issue on chassis B.38-HK. | 31th May 1939 | Box 89 \ 5 scan0043 | |
| Letter from R. R. Jackson of Brooklands Track, chasing a reply to a previous correspondence with Mr. W. A. Robotham. | 1st Jun 1939 | Box 89 \ 5 scan0044 | |
| The avoidance of fitting high compression pistons to pre 'M' Series cars. | 2nd Jun 1939 | Box 89 \ 5 scan0045 | |
| Letter to R.R. Jackson regarding raising the compression ratio of a Bentley engine and an apprenticeship scheme. | 2nd Jun 1939 | Box 89 \ 5 scan0046 | |
| Letter from R. R. Jackson acknowledging receipt of a letter and advising of Mr. Jackson's temporary absence. | 5th Jun 1939 | Box 89 \ 5 scan0047 | |
| Letter chasing the return of an old 4 1/4-litre cylinder head from Victor Martin & Co. Ltd. | 8th Jun 1939 | Box 89 \ 5 scan0048 | |
| Propeller shaft damper's torque requirements to address gearbox and axle rattles. | 9th Jun 1939 | Box 89 \ 5 scan0049 | |
| Response letter discussing an apprenticeship scheme and a client's decision on fitting high-compression pistons. | 19th Jun 1939 | Box 89 \ 5 scan0050 | |
| Inquiry for a special performance Bentley with custom two-seater coachwork. | 26th Jun 1939 | Box 89 \ 5 scan0051 | |
| Car body designs for Roy Gibson, Esq., including Paulin types and B.V or B.II chassis. | 27th Jun 1939 | Box 89 \ 5 scan0052 | |
| Confidential letter discussing the supply of a Bentley with a Streamline body and feedback on a new four-door Saloon. | 29th Jun 1939 | Box 89 \ 5 scan0053 | |
| Whether to charge for axle repairs on a high-mileage vehicle, following an owner's complaint. | 7th Jul 1939 | Box 89 \ 5 scan0054 | |
| Steering joggle complaint on Chassis B.101-KU. | 14th Aug 1939 | Box 89 \ 5 scan0055 | |
| Spline wear on a driving shaft from an 'MR' series rear axle. | 18th Aug 1939 | Box 89 \ 5 scan0056 | |
| Analysis of abnormal wear on a returned axle shaft's splines from a B.4-MR chassis. | 25th Aug 1939 | Box 89 \ 5 scan0057 | |
| Letter sending a report on Bentley economy and lamenting the effect of the War on work and prototypes. | 28th Sep 1939 | Box 89 \ 5 scan0058 | |
| Letter responding to an enquiry regarding increased fuel economy on a 4 1/4 litre Bentley. | 27th Sep 1939 | Box 89 \ 5 scan0059 | |
| Procedures for improving fuel economy on cars. | 27th Sep 1939 | Box 89 \ 5 scan0060 | |
| Procedural document for adjusting carburation and ignition timing on Bentley cars. | 27th Sep 1939 | Box 89 \ 5 scan0061 | |
| Instructions on starting, slow running (tick-over), and achieving maximum economy. | 27th Sep 1939 | Box 89 \ 5 scan0062 | |
| Letter asking for advice on improving the fuel economy of a 4 1/4 litre Bentley car during wartime. | 24th Sep 1939 | Box 89 \ 5 scan0063 | |
| Letter discussing Bentley petrol consumption, a potential new 'Benelephant' engine, and the impact of the war on car design and taxation. | 29th Sep 1939 | Box 89 \ 5 scan0064 | |
| Letter from Low Temperature Carbonisation Limited providing feedback on the use of Arctic oil in a car. | 12th Oct 1939 | Box 89 \ 5 scan0065 | |
| Letter from The Bristol Aeroplane Company regarding the arrangement to collect a Bentley car. | 16th Nov 1939 | Box 89 \ 5 scan0066 | |
| Letter from The Bristol Aeroplane Company regarding engine performance and tyre pressure issues on a Bentley car. | 28th Nov 1939 | Box 89 \ 5 scan0067 | |
| Letter responding to an inquiry about a car's compression ratio and tyre pressures. | 30th Nov 1939 | Box 89 \ 5 scan0068 | |
| A catastrophic engine failure on Mr. Martin Hurst's Bentley. | 5th Mar 1940 | Box 89 \ 5 scan0069 | |
| Letter to W.A. Robotham concerning high oil consumption and engine vibration in a 1936 car. | 5th Mar 1940 | Box 89 \ 5 scan0070 | |
| Letter advising that service work has been transferred from Derby to Hythe Road and suggesting the car is taken there for examination. | 7th Mar 1940 | Box 89 \ 5 scan0071 | |
| How to determine if Mr. Martin Hurst's Bentley has been over-revved following an engine failure. | 7th Mar 1940 | Box 89 \ 5 scan0072 | |
| Letter from Peto & Radford regarding severe engine vibration at high speed and the possibility of a re-bore. | 12th Mar 1940 | Box 89 \ 5 scan0073 | |
| Letter to a customer regarding the potential need for an engine re-bore under 40,000 miles. | 13th Mar 1940 | Box 89 \ 5 scan0074 | |
| Dispatch of a thermostat, casing, and Phantom III radiator for chassis 96 K.T. | 13th Mar 1940 | Box 89 \ 5 scan0075 | |
| Communication regarding the fitting of a thermostat to chassis 96 K.T. and a list of required parts. | 13th Mar 1940 | Box 89 \ 5 scan0076 | |
| Continued memo regarding a customer's cost limit for a vehicle modification. | 13th Mar 1940 | Box 89 \ 5 scan0077 | |
| The supply of a new cylinder head and the potential repair of the old one for chassis B. 33-DK. | 19th Mar 1940 | Box 89 \ 5 scan0078 | |
| Letter regarding a delay in supplying a cylinder head due to preoccupation with armament work. | 20th Mar 1940 | Box 89 \ 5 scan0079 | |
| The supply of a thermostat and casing assembly for a Bentley Chassis B-96-KT. | 28th Mar 1940 | Box 89 \ 5 scan0080 | |
| Letter from the Managing Director of Wellworthy Piston Rings regarding a sheared rear axle shaft on his Bentley. | 28th Mar 1940 | Box 89 \ 5 scan0081 | |
| Analysis report on a broken rear axle from a Bentley, detailing its chemical composition, physical properties, and microstructure. | 28th Mar 1940 | Box 89 \ 5 scan0082 | |
| Letter from Alexander Duckham & Co Ltd regarding the performance of ADCOIDS lubricant on engine valves. | 29th Mar 1940 | Box 89 \ 5 scan0083 | |
| Cancelling a request for a thermostat for chassis B-96-KT after it was found in a case. | 29th Mar 1940 | Box 89 \ 5 scan0084 | |
| Inquiry to a customer about car mileage before a cylinder block failure to check the rate of wear. | 30th Mar 1940 | Box 89 \ 5 scan0085 | |
| Typed memo confirming a phone call regarding a spare axle for a car. | 2nd Apr 1940 | Box 89 \ 5 scan0086 | |
| Letter discussing a rear axle half shaft failure and out-of-guarantee repair options. | 2nd Apr 1940 | Box 89 \ 5 scan0087 | |
| Letter of complaint regarding the pro-rata cost of an engine repair. | 2nd Apr 1940 | Box 89 \ 5 scan0088 | |
| Page 2 of a letter from a dissatisfied Bentley owner, W. Martin-Hurst, regarding the car's issues and his intention to sell it. | 3rd Apr 1940 | Box 89 \ 5 scan0089 | |
| Letter discussing the practicalities and ethics of purchasing a new car, including its size, and the trade-in value of the current vehicle. | 3rd Apr 1940 | Box 89 \ 5 scan0090 | |
| Letter discussing company dividends, car production status at the coach builders, and an invitation to see a new mill. | 4th Apr 1940 | Box 89 \ 5 scan0091 | |
| Letter from Wellworthy Piston Rings Ltd. concerning the failure of an axle shaft and requesting a free of charge replacement. | 4th Apr 1940 | Box 89 \ 5 scan0092 | |
| Letter discussing the length difference between cars due to bumper bars, a trade-in value, and a future viewing. | 5th Apr 1940 | Box 89 \ 5 scan0093 | |
| Letter from Mr. Duckham's Private Secretary to W.A. Robotham regarding valves that may have gone astray. | 8th Apr 1940 | Box 89 \ 5 scan0094 | |
| Letter requesting an opinion on the condition of engine valves after using a lubricating additive. | 29th Mar 1940 | Box 89 \ 5 scan0095 | |
| Letter to Sir Alexander Duckham regarding the condition and comparison of stellited exhaust valves. | 9th Apr 1940 | Box 89 \ 5 scan0096 | |
| Letter from a customer seeking advice on the running-in period after an engine repair and enquiring about the repair cost. | 10th Apr 1940 | Box 89 \ 5 scan0097 | |
| Letter to Wellworthy Pistons Ltd. regarding fair service charges for Bentley owners. | 11th Apr 1940 | Box 89 \ 5 scan0098 | |
| Letter to Mr. Martin-Hurst regarding a cost-sharing offer for a mishap and the potential sale of his car. | 12th Apr 1940 | Box 89 \ 5 scan0099 | |
| Customer dispute over the cost of repairs for a Bentley engine failure. | 12th Apr 1940 | Box 89 \ 5 scan0100 | |
| Letter discussing feedback on Bentley valves and their effect on engine carbon buildup. | 13th Apr 1940 | Box 89 \ 5 scan0101 | |
| Letter advising on the running-in procedure for a Bentley after fitting new pistons. | 15th Apr 1940 | Box 89 \ 5 scan0102 | |
| Letter from the Managing Director of Wellworthy Piston Rings Ltd. regarding a replaced axle shaft. | 15th Apr 1940 | Box 89 \ 5 scan0103 | |
| Letter to Wellworthy Pistons Ltd regarding a denied free axle shaft replacement and a request to expedite bearing delivery for testing. | 18th Apr 1940 | Box 89 \ 5 scan0104 | |
| Letter confirming operational engine speed limits will not be exceeded except for short sprints. | 18th Apr 1940 | Box 89 \ 5 scan0105 | |
| Phone call with Mr. Martin Hurst regarding his decision to keep his S.S. car. | 19th Apr 1940 | Box 89 \ 5 scan0106 | |
| Customer's Bentley with recurrent low speed wobbles. | 30th Apr 1940 | Box 89 \ 5 scan0107 | |
| Letter to The British Thermostat Co. proposing to chrome plate a customer's rebored engine block as an experiment. | 21th Aug 1940 | Box 89 \ 5 scan0108 | |
| To the London Depot regarding a customer's re-bored block to be chrome plated in Derby. | 21th Aug 1940 | Box 89 \ 5 scan0109 | |
| Letter written on behalf of an R.A.F. Wing Commander requesting to purchase a second-hand 21 HP car engine. | 31th Jul 1940 | Box 89 \ 5 scan0110 | |
| Letter to W.F. Goose Esq. regarding an enquiry for a 20 HP Rolls Royce car. | 2nd Aug 1940 | Box 89 \ 5 scan0111 | |
| Letter from 'Goose' and a potential bargain in the 20 HP line for Henderson and Barnes. | 2nd Aug 1940 | Box 89 \ 5 scan0112 | |
| Letter to a client detailing available Bentley Sports Saloons and listing other agents for competitive pricing. | 15th Oct 1940 | Box 89 \ 5 scan0113 | |
| Letter offering one of three newly completed Bentley cars for sale to a selected customer during wartime. | 3rd Dec 1940 | Box 89 \ 5 scan0114 | |
| Sale of a new Bentley V's to Wilmot Breedon and the associated arrangements. | 5th Dec 1940 | Box 89 \ 5 scan0115 | |
| Telegram regarding the completion date for Breedons car. | 24th Dec 1940 | Box 89 \ 5 scan0116 | |
| Telegram received by telephone regarding the finish date for a customer's car. | 24th Dec 1940 | Box 89 \ 5 scan0117 | |
| Telegram received by telephone regarding a breakdown car. | 24th Dec 1940 | Box 89 \ 5 scan0118 | |
| Letter of inquiry regarding the valuation and sale of an inherited car with a Thrupp and Maberly body. | 11th Dec 1940 | Box 89 \ 5 scan0119 | |
| Letter of advice regarding the potential purchase of a Bentley motor car. | 14th Dec 1940 | Box 89 \ 5 scan0120 | |
| Letter advising a customer on the low wartime valuation of a Wraith car, recommending to store it until the war ends. | 15th Dec 1940 | Box 89 \ 5 scan0121 | |
| Query regarding the feasibility of fitting an external oil filter to a 4¼-litre B-155-LE vehicle. | 19th Dec 1940 | Box 89 \ 5 scan0122 | |
| Communication regarding the fitting of an external oil filter to chassis B-155-LE for W. Keith Elliott, Esq. | 22th Dec 1940 | Box 89 \ 5 scan0123 | |
| Letter to British Filters Ltd. about arranging to fit an oil filter to chassis B-155-LE. | 22th Dec 1940 | Box 89 \ 5 scan0124 | |
| Telegram confirmation clarifying the completion date for a customer's car. | 24th Dec 1940 | Box 89 \ 5 scan0125 | |
| Letter to C.W. Breedon regarding the completion of his car and a potential car trial. | 27th Dec 1940 | Box 89 \ 5 scan0126 | |
| Telex message inquiring about the delivery date for a customer's Bentley car. | 19th Dec 1940 | Box 89 \ 5 scan0127 | |
| Letter from Wilmot-Breeden Ltd. regarding the sale of a personal car and an inquiry about a part-exchange discount on a new car. | 30th Dec 1940 | Box 89 \ 5 scan0128 | |
| Letter concerning regulations for purchasing a car and arranging a meeting. | 1st Jan 1941 | Box 89 \ 5 scan0129 | |
| Confirming the chassis number for a Mr. Breedon's Bentley-V. | 1st Jan 1941 | Box 89 \ 5 scan0130 | |
| Follow-up memo regarding a Bentley V, enclosing a copy of a letter sent to Mr. Breedon. | 2nd Jan 1941 | Box 89 \ 5 scan0131 | |
| Letter to C.L. Breedon regarding the purchase price and licensing requirements for a new Bentley car. | 1st Jan 1941 | Box 89 \ 5 scan0132 | |
| Letter confirming a telephone conversation regarding the valuation and potential repair of a car. | 9th Jan 1941 | Box 89 \ 5 scan0133 | |
| Letter to Flight Lieut. Jack Thompson confirming the provisional arrangement to purchase Mr. Breeden's car for £1050. | 12th Jan 1941 | Box 89 \ 5 scan0134 | |
| Of questions and answers regarding the sale of a car to Wilmot Breedon. | 1st Jan 1941 | Box 89 \ 5 scan0135 | |
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