| Description | Date | Identifier | |
| Clutch performance and maintenance mileage for 3 1/2 litre models. | 29th Jul 1937 | Box 107 \ 2 scan0227 | |
| Bentley service complaints report detailing faults and the corrective actions taken. | 29th Jul 1937 | Box 107 \ 2 scan0228 | |
| Faults found in vehicles and the corresponding corrective actions taken or proposed. | 29th Jul 1937 | Box 107 \ 2 scan0229 | |
| List of reported faults and the corresponding actions taken to address them. | 29th Jul 1937 | Box 107 \ 2 scan0230 | |
| Monthly report on customer complaints for the Bentley 3.1/2 Litre model. | 18th Aug 1936 | Box 107 \ 2 scan0231 | |
| Various mechanical faults and complaints on vehicles, including brakes, axles, pumps, and clutches. | 18th Aug 1936 | Box 107 \ 2 scan0232 | |
| Various defects and complaints regarding vehicle components and their proposed remedies. | 11th Jan 1937 | Box 107 \ 2 scan0233 | |
| Complaint report regarding the poor enamelling and finish on Bentley 25/30 HP engines. | 11th Jan 1937 | Box 107 \ 2 scan0234 | |
| List of points to be discussed at a Conference of Depot Officials regarding service and repair work. | 22th May 1937 | Box 107 \ 2 scan0235 | |
| Agenda for a meeting to discuss service complaints. | 19th May 1937 | Box 107 \ 2 scan0236 | |
| Agenda for a meeting on service complaints, covering chassis issues, free of charge work, and depot sheets. | 25th May 1937 | Box 107 \ 2 scan0237 | |
| Service accessibility, customer complaints on obsolete models, and stock ordering procedures. | 19th May 1937 | Box 107 \ 2 scan0238 | |
| Draft memo to depots regarding a new scheme for managing spare parts requirements. | 10th May 1937 | Box 107 \ 2 scan0239 | |
| Analysis of customer complaints regarding failures in 3½ and 4¼-Litre Bentley models. | 11th Mar 1937 | Box 107 \ 2 scan0240 | |
| Summary page detailing various vehicle component failures and their average mileage statistics. | 11th Mar 1937 | Box 107 \ 2 scan0241 | |
| Various vehicle component failures, their frequency, and average mileage at occurrence. | 11th Mar 1937 | Box 107 \ 2 scan0242 | |
| Various mechanical issues and their causes or proposed fixes on vehicle components. | 11th Mar 1937 | Box 107 \ 2 scan0243 | |
| List of technical faults, their causes, and the status of their rectification. | 11th Mar 1937 | Box 107 \ 2 scan0244 | |
| Issues with dynamo brush noise and petrol tank leaks. | 11th Mar 1937 | Box 107 \ 2 scan0245 | |
| List of complaints and resolutions for a Phantom III vehicle. | 18th Sep 1936 | Box 107 \ 2 scan0246 | |
| Log detailing mechanical issues, tests, and repairs for various vehicles. | 18th Sep 1936 | Box 107 \ 2 scan0247 | |
| Vehicle faults and the corrective actions taken. | 18th Sep 1936 | Box 107 \ 2 scan0248 | |
| Internal memorandum regarding customer A.Y. Gowen's vehicle performance issues and modification requests for chassis GDX-15. | 9th May 1933 | Box 107 \ 3 scan0001 | |
| Customer's improbable vehicle performance claim and arranging a meeting. | 15th May 1933 | Box 107 \ 3 scan0002 | |
| Brief acknowledgement regarding correspondence concerning Mr. A.Y. Gowen. | 15th May 1933 | Box 107 \ 3 scan0003 | |
| Sharing a testimonial from Mr. J.A.P. Shaw with Works Officials. | 11th Dec 1933 | Box 107 \ 3 scan0004 | |
| Customer satisfaction letter from J.A.P. Shaw regarding his 20 HP Rolls GEN-64, detailing fuel and oil consumption. | 6th Dec 1933 | Box 107 \ 3 scan0005 | |
| Proposed work on a 20/25 vehicle, including a synchromesh box upgrade. | 15th May 1934 | Box 107 \ 3 scan0006 | |
| Proposed works, including fitting a synchromesh gearbox, for chassis GTR-3 owned by Air Vice Marshal Longmore. | 17th May 1934 | Box 107 \ 3 scan0007 | |
| Fitting of a redundant synchromesh box to Chassis No. GTR-3. | 23th May 1934 | Box 107 \ 3 scan0008 | |
| Customer's dissatisfaction with a 'spitting in silencer' issue on a demonstration car. | 31th May 1934 | Box 107 \ 3 scan0009 | |
| Customer complaint about exhaust spitting on a 25 HP trials car, chassis GNC-56. | 4th Jun 1934 | Box 107 \ 3 scan0010 | |
| Letter of complaint from a motor engineer regarding a fault on a 20/25 HP demonstration car. | 4th Jun 1934 | Box 107 \ 3 scan0011 | |
| Page 2 of a letter from William Arnold, Manchester, reporting faults with steering and a weak handbrake. | 26th Jun 1934 | Box 107 \ 3 scan0012 | |
| Complaint case regarding the performance and acceleration of Commander Holbrook's car, chassis GYZ-18. | 26th Jun 1934 | Box 107 \ 3 scan0013 | |
| Complaint from Commdr. Holbrook about the performance of car GYZ-18. | 27th Jun 1934 | Box 107 \ 3 scan0014 | |
| Complaint case memo regarding chassis GYZ-18 for Commdr. Holbrook. | 28th Jun 1934 | Box 107 \ 3 scan0015 | |
| Performance modifications for a 20/25 car, concluding it would be better for the owner to buy a Bentley. | 4th Jul 1934 | Box 107 \ 3 scan0016 | |
| Internal correspondence regarding a customer complaint about a catalogue and a potential sale. | 5th Sep 1934 | Box 107 \ 3 scan0017 | |
| Letter to O.D. Cars, Ltd. regarding the unavailability of a catalogue for 25-HP cars. | 28th Aug 1934 | Box 107 \ 3 scan0018 | |
| Letter regarding car service for chassis GMD59, mentioning a new carburetter and an engine oil issue. | 29th Mar 1935 | Box 107 \ 3 scan0019 | |
| Letter to R.A.C. Johnson regarding chassis GMD-59 and an issue with popping in the silencer. | 2nd Apr 1935 | Box 107 \ 3 scan0020 | |
| Letter from W.C. Thorne to W.A. Robotham regarding a meeting and a complaint about a 25 Rolls Royce Car (G.F.E.39). | 6th Apr 1935 | Box 107 \ 3 scan0021 | |
| Internal memorandum requesting guidance on how to reply to an attached document. | 12th Apr 1935 | Box 107 \ 3 scan0022 | |
| Inquiry about the braking distance of a 25 HP 1935 model. | 15th Apr 1935 | Box 107 \ 3 scan0023 | |
| Response to a query regarding the braking distances of a 20/25 model car. | 15th Apr 1935 | Box 107 \ 3 scan0024 | |
| The difficulty of quantifying the braking performance of a car to a standstill. | 16th Apr 1935 | Box 107 \ 3 scan0025 | |
| Steering modifications and wheel trials for a customer's vehicle, GAE-19. | 25th Apr 1935 | Box 107 \ 3 scan0026 | |
| Customer A.Y. Gowan's request for smaller, experimental wheels and a query about any safety implications. | 10th May 1935 | Box 107 \ 3 scan0027 | |
| Fitting of smaller, non-standardised wheels to a 20/25 model. | 13th May 1935 | Box 107 \ 3 scan0028 | |
| Request for smaller diameter road wheels and its effect on petrol consumption. | 14th May 1935 | Box 107 \ 3 scan0029 | |
| Fitting of smaller, non-standardised wheels on the 20/25 model. | 15th May 1935 | Box 107 \ 3 scan0030 | |
| Customer's request for smaller wheels on a 20/25 chassis. | 21th May 1935 | Box 107 \ 3 scan0031 | |
| Customer complaint from Major Monro regarding engine flooding and vibration issues with car GRF-35. | 27th May 1935 | Box 107 \ 3 scan0032 | |
| Solutions for high petrol consumption in 20/25 HP cars, including testing new carburettors. | 12th Jun 1935 | Box 107 \ 3 scan0033 | |
| Customer's 'clutch jagger' issue on a 20/25 HP chassis, suggesting the car be sent to the Experimental Dept. | 16th Jul 1935 | Box 107 \ 3 scan0034 | |
| Suspension complaints, suggesting a modification to shock absorber valves on Saloon 25 HP cars. | 16th Sep 1935 | Box 107 \ 3 scan0035 | |
| Letter concerning a dissatisfied customer's issues with a 20/25 model and the potential damage to the company's reputation. | 4th Oct 1935 | Box 107 \ 3 scan0036 | |
| Customer case for chassis GAF-20, clarifying the customer's identity and satisfaction level. | 7th Oct 1935 | Box 107 \ 3 scan0037 | |
| Identity and satisfaction of the owner of chassis GAF-20. | 7th Oct 1935 | Box 107 \ 3 scan0038 | |
| Letter discussing a customer complaint and an update on a personal car repair. | 9th Oct 1935 | Box 107 \ 3 scan0039 | |
| Asking for clarification on whether Mr. F. Bernard Clark is the same person as Mr. Ben Clark. | 14th Oct 1935 | Box 107 \ 3 scan0040 | |
| History of correspondence and service for Chassis No. GAF-20. | 11th Oct 1935 | Box 107 \ 3 scan0041 | |
| Follow-up report on a customer's vehicle detailing maintenance, repairs, and owner feedback. | 10th Oct 1935 | Box 107 \ 3 scan0042 | |
| Letter regarding a lack of progress in resolving an issue with a customer's car. | 18th Oct 1935 | Box 107 \ 3 scan0043 | |
| Proposing a changeover of smaller wheels and tyres with Mr. A.Y. Gowen, owner of car GOH-28. | 23th Oct 1935 | Box 107 \ 3 scan0044 | |
| Reply authorizing the fitting of smaller wheels and tyres to Mr. Gowen's car. | 25th Oct 1935 | Box 107 \ 3 scan0045 | |
| Fitting smaller wheels to car GOH-28 and asking about the return of the standard wheels. | 7th Nov 1935 | Box 107 \ 3 scan0046 | |
| Use of wheels from Mr. Gowan's car, chassis GOH-28, for experimental work or by the Test Department. | 8th Nov 1935 | Box 107 \ 3 scan0047 | |
| Enquiring if a thimble filter was fitted to a special carburetter supplied for car GRF-30, with a handwritten reply. | 17th Jan 1936 | Box 107 \ 3 scan0048 | |
| Note about a filter not being fitted to a special carburetter for chassis GRF-30. | 21th Jan 1936 | Box 107 \ 3 scan0049 | |
| Return of a steering column from chassis GUL-41 due to excessive slackness and oil leakage. | 21th Jul 1936 | Box 107 \ 3 scan0050 | |
| Works order for a stock test of a steering column for chassis GUL-41. | 24th Jul 1936 | Box 107 \ 3 scan0051 | |
| The delivery of a steering column for chassis GUL-41. | 23th Jul 1936 | Box 107 \ 3 scan0052 | |
| Persistent servo judder issues on chassis GYH-45 and a request for a cure. | 14th Oct 1936 | Box 107 \ 3 scan0053 | |
| Despatch of missing items, a chromium mascot and a screwdriver, for chassis GXM-70. | 19th Oct 1936 | Box 107 \ 3 scan0054 | |
| Complaint regarding a faulty petrol pump and the findings of its examination. | 2nd Nov 1936 | Box 107 \ 3 scan0055 | |
| Letter detailing a customer's car troubles and the arrangements made for a replacement chassis. | 3rd Nov 1936 | Box 107 \ 3 scan0056 | |
| Dissatisfied customer's (Mr. Jobson) specific chassis requirements and a money-back guarantee agreement. | 3rd Nov 1936 | Box 107 \ 3 scan0057 | |
| Apology for a missed appointment and rescheduling of a meeting to discuss cylinder liners. | 11th Nov 1936 | Box 107 \ 3 scan0058 | |
| Request for a cost estimate for repairs to a cylinder block and pistons for chassis No. GTL-34. | 31th Dec 1936 | Box 107 \ 3 scan0059 | |
| Preignition issues with a 25/30 unit cylinder head and the subsequent swapping of parts. | 2nd Feb 1937 | Box 107 \ 3 scan0060 | |
| Inspection report on a car following a complaint of poor petrol consumption, detailing checks and test results. | 2nd Feb 1937 | Box 107 \ 3 scan0061 | |
| Letter seeking advice on the purchase of a used 20/25 HP car, chassis GMU76, and mentioning a friend's new Phantom III order. | 2nd Feb 1937 | Box 107 \ 3 scan0062 | |
| Letter from Brocklehurst-Whiston Amalgamated Ltd. to W.A. Robotham regarding a potential meeting and business. | 2nd Feb 1937 | Box 107 \ 3 scan0063 | |
| Letter to the Earl of Rothes from the Experimental Dept. discussing a 'U' Series 25 HP car and other company matters. | 3rd Feb 1937 | Box 107 \ 3 scan0064 | |
| Typed personal letter discussing a trip to America, a squash injury, house alterations, and social arrangements. | 3rd Feb 1937 | Box 107 \ 3 scan0065 | |
| Letter from The Earl of Rothes to W.A. Robotham regarding a car and arrangements for potential work. | 5th Feb 1937 | Box 107 \ 3 scan0066 | |
| Letter to The Earl of Rothes regarding an inspection of a car before purchase. | 9th Feb 1937 | Box 107 \ 3 scan0067 | |
| Letter declining an offer for a car due to its body size being smaller than expected and its high price. | 9th Feb 1937 | Box 107 \ 3 scan0068 | |
| The chassis number of H.C. Drayton's Phantom III. | 15th Feb 1937 | Box 107 \ 3 scan0069 | |
| Investigation into poor oil consumption on chassis G.T.L.34 (25/30 model). | 15th Feb 1937 | Box 107 \ 3 scan0070 | |
| Letter from H.M. Hobson Components offering a newly allotted 25/30 HP chassis for fitting with experimental parts. | 23th Jun 1937 | Box 107 \ 3 scan0071 | |
| Letter to T.P. Searight of H.M. Hobson Components Ltd, suggesting he bring his car to Derby for feedback and potential modifications. | 25th Jun 1937 | Box 107 \ 3 scan0072 | |
| Letter from H.M. Hobson Components Ltd. to W. A. Robotham acknowledging a previous letter and suggestion. | 30th Jun 1937 | Box 107 \ 3 scan0073 | |
| Chassis GUN-10, a 30 HP model, detailing the resolution of an exhaust spitting complaint. | 1st Jun 1937 | Box 107 \ 3 scan0074 | |
| Requesting an opinion on tyre and exhaust noise, and brake performance for a car on trial. | 6th Jul 1937 | Box 107 \ 3 scan0075 | |
| Internal correspondence regarding a customer complaint about the brakes on chassis GAE.79. | 4th Jul 1937 | Box 107 \ 3 scan0076 | |
| Resolving a brake squeak issue on Mr. Jules JADOT's car. | 25th Mar 1936 | Box 107 \ 3 scan0077 | |
| Letter to Franco-Britannic Autos Ltd. concerning arrangements for chassis GAE.79 and Mr. Jules Jadot. | 1st Feb 1937 | Box 107 \ 3 scan0078 | |
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