| Description | Date | Identifier | |
| Letter discussing clutch performance and potential improvements on a 3.5-litre car, referencing a Mr. Dykes Senior. | 31th Dec 1937 | Box 89 \ 4 scan0223 | |
| Clutch judder in a Bentley and the prohibitive cost of fitting an anti-rattle synchromesh device. | 3rd Jan 1938 | Box 89 \ 4 scan0224 | |
| Letter to a customer regarding car modifications, costs, and advice on propeller un-balance. | 3rd Jan 1938 | Box 89 \ 4 scan0225 | |
| Letter from the Sales Director's office regarding a recurring dynamo fault on a 4¼ Litre car. | 11th Jan 1938 | Box 89 \ 4 scan0226 | |
| Letter to W. A. Robotham regarding an issue with the dynamo not engaging on a cold start. | 11th Jan 1938 | Box 89 \ 4 scan0227 | |
| Copy of a letter from Mr. C.W. Nichols concerning a recurring dynamo fault on his 4¼ Litre car. | 11th Jan 1938 | Box 89 \ 4 scan0228 | |
| Letter from C.W. Nichols to W.A. Robotham regarding a fault with the dynamo not cutting in on a cold start. | 11th Jan 1938 | Box 89 \ 4 scan0229 | |
| Cover memo regarding an attached letter from Nichols of Smiths. | 13th Jan 1938 | Box 89 \ 4 scan0230 | |
| Letter from The Light Production Co. Ltd. to W. A. Robotham regarding a car's performance test, achieving 90 m.p.h. | 14th Jan 1938 | Box 89 \ 4 scan0231 | |
| Letter from The Fairey Aviation Co. Ltd. requesting parts for an Alfa Romeo transmission. | 15th Jan 1938 | Box 89 \ 4 scan0232 | |
| Letter discussing the successful repair of a transmission and the wish to place a formal order for subsequent work. | 15th Jan 1938 | Box 89 \ 4 scan0233 | |
| Letter on Fairey Aviation Co. Ltd. letterhead regarding a trip to Derby to collect parts. | 24th Jan 1938 | Box 89 \ 4 scan0234 | |
| Letter declining a request to manufacture transmission parts for an Alfa Romeo due to a heavy workload. | 24th Jan 1938 | Box 89 \ 4 scan0235 | |
| Letter from Lord Cholmondeley's secretary regarding the return of wheels for a Bentley car and requesting a hire invoice. | 26th Jan 1938 | Box 89 \ 4 scan0236 | |
| Letter regarding a no-charge hire of wheels and tyres for Lord Cholmondeley. | 27th Jan 1938 | Box 89 \ 4 scan0237 | |
| Delay in receiving a car from its owner. | 26th Jan 1933 | Box 89 \ 4 scan0238 | |
| Recurring issues with a slipper drive and a sticking throttle on car B-117-JY. | 27th Jan 1938 | Box 89 \ 4 scan0239 | |
| Big end engine failure on chassis B-128-GA. | 27th Jan 1938 | Box 89 \ 4 scan0240 | |
| Requesting the return of a pair of experimental wheels loaned to Lord Cholmondeley. | 27th Jan 1938 | Box 89 \ 4 scan0241 | |
| Letter to W.C. Devereux regarding the fitting of larger wheels, tyres and a steering modification for his Bentley. | 27th Jan 1938 | Box 89 \ 4 scan0242 | |
| Fitting large wheels and tyres to a car for Mr. Devereux, including cost and profit margin. | 27th Jan 1938 | Box 89 \ 4 scan0243 | |
| Request to obtain a set of wheels, tyres, and a pendulum lever for Mr. Devereux's Bentley. | 27th Jan 1938 | Box 89 \ 4 scan0244 | |
| Request for big wheels and tyres for a Bentley, and a related request to the Repair Dept. | 27th Jan 1938 | Box 89 \ 4 scan0245 | |
| Return of wheels for the Marquess of Cholmondeley. | 29th Jan 1938 | Box 89 \ 4 scan0246 | |
| The fitting of large wheels and tyres to Devereux's car using a pair from Lord Cholmondeley's house. | 31th Jan 1938 | Box 89 \ 4 scan0247 | |
| Letter from High Duty Alloys Ltd. regarding the fitting of special wheels and tyres for a Bentley. | 31th Jan 1938 | Box 89 \ 4 scan0248 | |
| Notification regarding the collection of experimental road wheels for a 4¼-litre car, chassis B.169.GP, belonging to Lord Cholmondeley. | 31th Jan 1938 | Box 89 \ 4 scan0249 | |
| Letter to Fairey Aviation Co. Ltd. regarding drawings for gearbox parts. | 1st Feb 1938 | Box 89 \ 4 scan0250 | |
| Engine examination report for chassis B.128-GA concludes that bearing failure was caused by a dangerously low oil level due to owner carelessness. | 1st Feb 1938 | Box 89 \ 4 scan0251 | |
| Letter discussing car maintenance issues with brakes and springs. | 2nd Feb 1938 | Box 89 \ 4 scan0252 | |
| Letter from a customer requesting various spare parts and advice on a repair. | 2nd Feb 1938 | Box 89 \ 4 scan0253 | |
| Letter discussing a car's silencer, the purchase of an Alfa Romeo for racing, and the firm's work on aero engines. | 2nd Feb 1938 | Box 89 \ 4 scan0254 | |
| Letter regarding the attitude of London management towards the cars and personal matters. | 4th Feb 1938 | Box 89 \ 4 scan0255 | |
| Letter to E.A. Thomas, Esq., informing him that Mr. Robotham is away from the works. | 4th Feb 1938 | Box 89 \ 4 scan0256 | |
| Visit to investigate a complaint about the wiring on a Bentley car. | 4th Feb 1938 | Box 89 \ 4 scan0257 | |
| Recurring issue with a customer's nearside headlamp bulb blowing due to a loose bulb holder. | 4th Feb 1938 | Box 89 \ 4 scan0258 | |
| Outstanding complaints for the Bentley 4¼ Litre chassis, concerning the rear axle and engine bearings. | 4th Feb 1938 | Box 89 \ 4 scan0259 | |
| Technical report on improvements and issues regarding bearings, brakes, servos, and steering. | 4th Feb 1938 | Box 89 \ 4 scan0260 | |
| Clutch and battery faults and modifications. | 4th Feb 1938 | Box 89 \ 4 scan0261 | |
| Report regarding a front brake seizure complaint, suggesting two potential causes for the issue. | 7th Feb 1938 | Box 89 \ 4 scan0262 | |
| Analysis of S.U. petrol pump complaints on Bentley chassis at Kingsbury Depot. | 11th Feb 1938 | Box 89 \ 4 scan0263 | |
| Analysis of component failures on a test rig, specifically related to leakage and rubber plugs. | 11th Feb 1936 | Box 89 \ 4 scan0264 | |
| Summary table of Bentley petrol pump complaints at Kingsbury, categorized by fault type and pump model. | 12th Feb 1938 | Box 89 \ 4 scan0265 | |
| Four S.S.C. petrol pumps returned from Kingsbury Depot due to various complaints. | 12th Feb 1938 | Box 89 \ 4 scan0266 | |
| Investigation into gummed-up pump valves, suspecting paraffin's effect on rubber plugs and proposing remedies. | 12th Feb 1938 | Box 89 \ 4 scan0267 | |
| Reporting a soft crankshaft with worn and scored journals on Chassis B.165.KU. | 17th Feb 1938 | Box 89 \ 4 scan0268 | |
| Performance and characteristics of graphite bronze clutch facings. | 19th Feb 1938 | Box 89 \ 4 scan0269 | |
| Inquiry into the seriousness of Bentley rear axle tube failures by checking how many 3½ litre cars have passed 50,000 miles. | 22th Feb 1938 | Box 89 \ 4 scan0270 | |
| Catastrophic engine failure due to a connecting rod on Chassis No. B.149.JY. | 23th Feb 1938 | Box 89 \ 4 scan0271 | |
| Letter to Mr. Paddon of Messrs Paddon Brothers regarding an update on chassis 130.K.T. | 23th Feb 1938 | Box 89 \ 4 scan0272 | |
| Customer complaints about the directional stability of Bentley cars due to overloaded rear tyres. | 24th Feb 1938 | Box 89 \ 4 scan0273 | |
| Testing a Bentley's oversteering issue by adjusting tyre pressures and fitting different wheels and tyres. | 22th Feb 1938 | Box 89 \ 4 scan0274 | |
| Bentley rear axle tube failures, listing chassis numbers that have exceeded 50,000 miles. | 25th Feb 1938 | Box 89 \ 4 scan0275 | |
| Slight synchro rattle and clutch judder related to graphite bronze clutch facings. | 25th Feb 1938 | Box 89 \ 4 scan0276 | |
| Analysis of an engine seizure on a 4 1/2 Litre Bentley, focusing on lubrication failure and a proposed cure. | 3rd Mar 1938 | Box 89 \ 4 scan0277 | |
| List of engine lubrication modifications for different vehicle series. | 3rd Mar 1938 | Box 89 \ 4 scan0278 | |
| Letter regarding the harsh springing on a Bentley (B.27 CW) and arranging for it to be sent for adjustment. | 4th Mar 1938 | Box 89 \ 4 scan0279 | |
| Responding to a query about direction stability issues in Bentley cars. | 4th Mar 1938 | Box 89 \ 4 scan0280 | |
| Letter of complaint regarding a recurring dynamo fault on a Bentley motorcar. | 5th Mar 1938 | Box 89 \ 4 scan0281 | |
| Letter discussing fitting experimental springs and larger tyres to a customer's car. | 5th Mar 1938 | Box 89 \ 4 scan0282 | |
| Letter to a customer discussing carburetter silencer failure, brake advice, and company business focus. | 10th Mar 1938 | Box 89 \ 4 scan0283 | |
| Forwarding a letter which requests a number of spanners and parts. | 10th Mar 1938 | Box 89 \ 4 scan0284 | |
| The handover of a Silent Zone Lamp Switch and a key cover promised to a Mr. Devereux. | 14th Mar 1938 | Box 89 \ 4 scan0285 | |
| Chasing the location of returned wheels for The Marquis of Cholmondeley in order to cancel an invoice. | 14th Mar 1938 | Box 89 \ 4 scan0286 | |
| Cracked air silencer on chassis B.230.GA, requesting examination, repair, and advice on prevention. | 17th Mar 1938 | Box 89 \ 4 scan0287 | |
| The return of a petrol pump, RB.1003, after examination found no faults. | 17th Mar 1938 | Box 89 \ 4 scan0288 | |
| Letter to a customer regarding troubleshooting potential issues with their motor car's front end and governor unit. | 19th Mar 1938 | Box 89 \ 4 scan0289 | |
| Suggesting the use of low viscosity oil (Mobiloil Arctic) to reduce engine wear on chassis B.144.HK. | 22th Mar 1938 | Box 89 \ 4 scan0290 | |
| Letter to Mr. C.L. Breeden of Wilmot-Breeden Ltd confirming the loan of an experimental 4¼-litre Bentley. | 23th Mar 1938 | Box 89 \ 4 scan0291 | |
| Customer's request for credit or return of removed wheels and tyres for chassis B.149.JY. | 25th Mar 1938 | Box 89 \ 4 scan0292 | |
| Complaints from Mr. Roberts of Park Wards about a sticking throttle on his Bentley and a misfire on the Park Ward's Trial Car. | 29th Mar 1938 | Box 89 \ 4 scan0293 | |
| Inquiring about the source of a suggestion that a customer named Devereux should not pay for new wheels and tyres. | 30th Mar 1938 | Box 89 \ 4 scan0294 | |
| Withdrawing a previous communication regarding a misunderstanding about chargeable wheels and tyres for chassis B.149.JY. | 30th Mar 1938 | Box 89 \ 4 scan0295 | |
| Resolving customer complaints about inefficient brakes on Bentley and 20-25/25-30 HP models. | 30th Mar 1938 | Box 89 \ 4 scan0296 | |
| Car repairs for a customer, specifically a sticking throttle, brakes, and misfires. | 31th Mar 1938 | Box 89 \ 4 scan0297 | |
| Letter from a customer complaining about a noise and play in the back axle. | 4th Apr 1938 | Box 89 \ 4 scan0298 | |
| Letter to G.R.N. Minchin regarding the scheduling of work on his car. | 6th Apr 1938 | Box 89 \ 4 scan0299 | |
| Proposal to produce a 4¼-litre Bentley engine from experimental parts and a 25/30 engine for Mr. Bruce Gardner's car. | 6th Apr 1938 | Box 89 \ 4 scan0300 | |
| Request to get the necessary parts ready for Minchin's car. | 6th Apr 1938 | Box 89 \ 4 scan0301 | |
| Concerning a customer complaint about a Bentley car's central lubrication system. | 8th Apr 1938 | Box 89 \ 4 scan0302 | |
| Customer's criticism of the centralised lubrication system on a Bentley B-142-LS. | 8th Apr 1938 | Box 89 \ 4 scan0303 | |
| Letter detailing how a car's noise issue was significantly reduced by tightening the back wheels. | 8th Apr 1938 | Box 89 \ 4 scan0304 | |
| Letter to a customer discussing the difficulty of tightening Rudge Whitworth wheels and potential experimental designs. | 11th Apr 1938 | Box 89 \ 4 scan0305 | |
| Quote of £65 to a customer for an engine conversion and the subsequent logistical arrangements. | 13th Apr 1938 | Box 89 \ 4 scan0306 | |
| Customer's dangerous juddering brakes and a request to provide a loaner car. | 20th Apr 1938 | Box 89 \ 4 scan0307 | |
| Brief internal memorandum chasing a reply to a previous communication. | 20th Apr 1938 | Box 89 \ 4 scan0308 | |
| From Rm. to G.A. Daniell attaching a copy of a previous memo to GWH. | 22th Apr 1938 | Box 89 \ 4 scan0309 | |
| Supply of experimental parts for a 4¼-litre engine and the proposed use of a 3½-litre engine as a stand-by. | 22th Apr 1938 | Box 89 \ 4 scan0310 | |
| Parts and overhaul work required to re-assemble a 25/30 unit as a 4 1/4 litre Bentley for car B.117.BL. | 23th Apr 1938 | Box 89 \ 4 scan0311 | |
| List of required engine modifications and overhaul instructions with a request for credit. | 23th Apr 1938 | Box 89 \ 4 scan0312 | |
| Arranging for a Bentley to be brought in for a brake job and providing a loaner Rolls-Royce. | 26th Apr 1938 | Box 89 \ 4 scan0313 | |
| Brake upgrades for Squadron Leader Staniland's Bentley. | 27th Apr 1938 | Box 89 \ 4 scan0314 | |
| Urgent memo regarding Mr. G.A. Daniell bringing his car, chassis B-142-LS, for service on the lubrication system and squeaking brakes. | 5th May 1938 | Box 89 \ 4 scan0315 | |
| Cover note to A. Hartley Esq. regarding a memo for chassis No. B.162-LS. | 30th May 1938 | Box 89 \ 4 scan0316 | |
| Rear axle noise on car B.162-LS and the results of a road test. | 30th May 1938 | Box 89 \ 4 scan0317 | |
| Charging brake squeak reduction costs on a Bentley to company policy as a goodwill gesture towards supplier Wilmot-Breeden Ltd. | 9th Jun 1938 | Box 89 \ 4 scan0318 | |
| Requesting clarification on how to allocate a labour charge for work completed on chassis B.214-GA. | 11th Jun 1938 | Box 89 \ 4 scan0319 | |
| Letter from Fairey Aviation to E.W. Hives regarding brake performance on a Bentley. | 11th Jun 1938 | Box 89 \ 4 scan0320 | |
| Page two of a letter from The Fairey Aviation Co. Ltd. thanking someone for work on brakes. | 13th Jun 1938 | Box 89 \ 4 scan0321 | |
| Letter providing feedback on a car's performance, noting issues with poor brakes and slack in the transmission. | 13th Jun 1938 | Box 89 \ 4 scan0322 | |
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