| Description | Date | Identifier | |
| Letter concerning seized bearings and crankshaft measurements for chassis B.125.GP. | 7th Jun 1938 | Box 146 \ 1 scan0274 | |
| Cover letter forwarding an extract of a letter from Lord Cholmondeley regarding comparative vehicle tests. | 7th Jun 1938 | Box 146 \ 1 scan0275 | |
| Extract from a letter by Lord Cholmondeley comparing a Lagonda and a Bentley at Brooklands. | 4th Jun 1938 | Box 146 \ 1 scan0276 | |
| Recurring engine big end bearing failures for chassis B.I35.BL. | 8th Jun 1938 | Box 146 \ 1 scan0277 | |
| Inspection report on connecting rod big-end bearing failures, discussing driving habits and potential causes. | 8th Jun 1938 | Box 146 \ 1 scan0278 | |
| The potential cause for a seized No. 5 big end bearing and the subsequent question of payment. | 8th Jun 1938 | Box 146 \ 1 scan0279 | |
| Rattles developing in Bentley rear silencers and requesting information on the cause and solution. | 9th Jun 1938 | Box 146 \ 1 scan0280 | |
| Cost of fitting a 2-inch shorter gear lever to Bentley cars sold in France. | 10th Jun 1938 | Box 146 \ 1 scan0281 | |
| Letter regarding the testing of Michelin 'Pilote' tyres and a proposal for further tests with newly manufactured tyres and wheels. | 14th Jun 1938 | Box 146 \ 1 scan0282 | |
| Agreement to fit Halls metal bigends and large capacity oil pumps to three and a half litre Bentleys. | 15th Jun 1938 | Box 146 \ 1 scan0283 | |
| Order for large capacity oil pumps and reporting on a wrecked engine on a 3 1/2 litre Bentley chassis. | 15th Jun 1938 | Box 146 \ 1 scan0284 | |
| From Paris to Derby concerning the supply of shorter Bentley gear levers. | 15th Jun 1938 | Box 146 \ 1 scan0285 | |
| Letter discussing the modification of Bentley gear levers and proposing a shorter lever as an option for export chassis. | 15th Jun 1938 | Box 146 \ 1 scan0286 | |
| Letter discussing tyre specifications for car B.III, a potential meeting with Mr. Michelin, and streamline car testing. | 20th Jun 1938 | Box 146 \ 1 scan0287 | |
| Big end bearing failures on a 3 1/2 Litre Bentley and the decision to upgrade materials and oil pumps for cars used on the Continent. | 21th Jun 1938 | Box 146 \ 1 scan0288 | |
| Letter concerning a request from the Standard Company for an appreciation of ESSO fuel for a publicity pamphlet. | 21th Jun 1938 | Box 146 \ 1 scan0289 | |
| Telegram from Paris to Duffield regarding a 'streamcar' being ready. | 14th Jun 1938 | Box 146 \ 1 scan0290 | |
| Letter arranging travel to witness the testing of a streamlined car before delivery to the customer. | 23th Jun 1938 | Box 146 \ 1 scan0291 | |
| 'plug trouble' with Esso petrol and recommending Discol as an alternative. | 23th Jun 1938 | Box 146 \ 1 scan0292 | |
| Letter from Paris to Derby regarding a trip for the 'Nuit de Longchamp' and a 'stream-lined job'. | 23th Jun 1938 | Box 146 \ 1 scan0293 | |
| Typed memo confirming travel arrangements and a meeting at Le Bourget airport. | 28th Jun 1938 | Box 146 \ 1 scan0294 | |
| Confirming a telephone conversation to reserve three seats on a British Airways flight. | 28th Jun 1938 | Box 146 \ 1 scan0295 | |
| Engine report detailing a N°5 big end bearing failure, including crankshaft and bearing measurements. | 30th Jun 1938 | Box 146 \ 1 scan0296 | |
| The condition of main bearings and an oil flow test for an R.20 engine. | 30th Jun 1938 | Box 146 \ 1 scan0297 | |
| Typed letter regarding a change of travel arrangements for a trip to Paris. | 30th Jun 1938 | Box 146 \ 1 scan0298 | |
| Short typed message requesting a phone call to Sleator Francobrit Levallois-Perret. | 30th Jun 1938 | Box 146 \ 1 scan0299 | |
| Request to provisionally book a flight seat to Paris from Heston Airport. | 4th Jul 1938 | Box 146 \ 1 scan0300 | |
| Viscosity of Castrol oils in France for chassis lubrication. | 1st Jul 1938 | Box 146 \ 1 scan0301 | |
| Condition report on the crankshaft and bearings for chassis B.64.KT, detailing measurements due to an engine knock. | 4th Jul 1938 | Box 146 \ 1 scan0302 | |
| Badly scored main bearings and a crankshaft inspection during a visit. | 4th Jul 1938 | Box 146 \ 1 scan0303 | |
| Letter regarding sending main bearings from chassis B.64.KT for analysis to determine their alloy composition. | 4th Jul 1938 | Box 146 \ 1 scan0304 | |
| Letter concerning the condition of main bearings removed from chassis B.5.AE after an engine failure. | 4th Jul 1938 | Box 146 \ 1 scan0305 | |
| Photograph showing the condition of upper and lower main bearing halves after 18,750 miles. | 6th Jul 1938 | Box 146 \ 1 scan0306 | |
| Requesting an order of 5 gallons of De Laval oil to be despatched to the Paris depot for trial. | 6th Jul 1938 | Box 146 \ 1 scan0307 | |
| The engine failure of chassis B.174.EF, detailing required replacement parts and a post-dismantling inspection report. | 8th Jul 1938 | Box 146 \ 1 scan0308 | |
| Melted big-end bearing in chassis B.174.EF and the subsequent agreement for repair. | 8th Jul 1938 | Box 146 \ 1 scan0309 | |
| Photograph showing the upper and lower halves of seven main bearings after 26,138 miles. | 8th Jul 1938 | Box 146 \ 1 scan0310 | |
| Main and big end bearing issues across three different Bentley chassis, detailing modifications and customer liability. | 8th Jul 1938 | Box 146 \ 1 scan0311 | |
| Instructions for fitting a high-pressure petrol pump and bracket to Monsieur Emberico's Streamline Bentley. | 8th Jul 1938 | Box 146 \ 1 scan0312 | |
| Message from Rm regarding arrival at Le Bourget and requesting to be met. | 9th Jul 1938 | Box 146 \ 1 scan0313 | |
| From 'Rm' requesting the cancellation of a previous booking and obtaining a new flight and railway ticket. | 9th Jul 1938 | Box 146 \ 1 scan0314 | |
| Summary of modifications and repairs to Bentley 4 1/4 litre engines for cars in France. | 11th Jul 1938 | Box 146 \ 1 scan0315 | |
| Modifications and repairs to Bentley 3 1/2 litre engines for cars located in France. | 11th Jul 1938 | Box 146 \ 1 scan0316 | |
| Broken front bumper on chassis B.9.DK for Mr. Van der Hauzeur. | 12th Jul 1938 | Box 146 \ 1 scan0317 | |
| Despatch note detailing parts sent for trial, including a 'General' oil filter and Aerolite pistons for Bentley engines. | 15th Jul 1938 | Box 146 \ 1 scan0318 | |
| To Bentley Motors regarding the analysis results for chassis B.125.GP, belonging to Mr. Jacques Faure. | 15th Jul 1938 | Box 146 \ 1 scan0319 | |
| Lending a Bentley 3.1/2 Litre spare engine to a customer, Mme. Rueff, while her car's engine is repaired, and inquiring if the spare has been updated. | 15th Jul 1938 | Box 146 \ 1 scan0320 | |
| Twisted rocker shaft on chassis 3-CP-88, its likely cause, and a design improvement. | 15th Jul 1938 | Box 146 \ 1 scan0321 | |
| Analysis of a G.S.S.C. pump failure on chassis GAR.14, suggesting causes other than weak springs. | 15th Jul 1938 | Box 146 \ 1 scan0322 | |
| Letter from Duckham's Chairman requesting information on susceptible engine parts for lubricant testing. | 15th Jul 1938 | Box 146 \ 1 scan0323 | |
| To Bentley Motors regarding a 'General' filter and 'L' section rings for a 3 1/2 litre Bentley. | 18th Jul 1938 | Box 146 \ 1 scan0324 | |
| Engine stress, a spare engine, bodywork drawings and potential styling collaboration. | 18th Jul 1938 | Box 146 \ 1 scan0325 | |
| To Bentley Motors regarding a 'General' filter and 'L' section rings for a 3 1/2 litre Bentley. | 18th Jul 1938 | Box 146 \ 1 scan0326 | |
| Parts list for Bentley pistons and oil filter pipes to be sent to the Paris Depot. | 18th Jul 1938 | Box 146 \ 1 scan0327 | |
| The despatch of various engine parts to the Paris Depot. | 19th Jul 1938 | Box 146 \ 1 scan0328 | |
| From Levallois regarding a free-of-charge steering repair for Chassis B.CF.88. | 20th Jul 1938 | Box 146 \ 1 scan0329 | |
| Response regarding chassis GAR.14 for Comte de Clemy-Collet, pending action from the Head Electrician. | 20th Jul 1938 | Box 146 \ 1 scan0330 | |
| Policy for fitting large capacity oil pumps to 3.5-litre Bentley chassis in France. | 27th Jul 1938 | Box 146 \ 1 scan0331 | |
| Cover note regarding correspondence about Duckham's Adcoids. | 1st Aug 1938 | Box 146 \ 1 scan0332 | |
| Letter from A. Duckham discussing Bentley engine performance and lubrication with ADCOIDS oil additive. | 25th Jul 1938 | Box 146 \ 1 scan0333 | |
| Broken shock damper lever sent for examination for chassis 3.AZ.212. | 29th Jul 1938 | Box 146 \ 1 scan0334 | |
| Faulty thrust bearing on a B.35.KU chassis trials car, detailing its short service life. | 1st Aug 1938 | Box 146 \ 1 scan0335 | |
| Short lifespan of a damaged thrust bearing on a trials car, chassis B.35.KU. | 1st Aug 1938 | Box 146 \ 1 scan0336 | |
| Evaluation of 'Adcoids' on engine cylinder bore wear. | 4th Aug 1938 | Box 146 \ 1 scan0337 | |
| Analysis of seized main bearings from chassis B.125.GP, suggesting the cause was incorrect clearance or improper running-in. | 4th Aug 1938 | Box 146 \ 1 scan0338 | |
| The fitting of large oil pumps to several 3 1/2 litre Bentley cars in France, listing chassis numbers and owner details. | 8th Aug 1938 | Box 146 \ 1 scan0339 | |
| Advisability and cost of fitting large oil pumps to several customer vehicles. | 8th Aug 1938 | Box 146 \ 1 scan0340 | |
| To Bentley Motors regarding the analysis of the main bearing for chassis B.64.KT. | 8th Aug 1938 | Box 146 \ 1 scan0341 | |
| Catastrophic engine failure on Chassis B.38.JD belonging to Mr R.E. James. | 9th Aug 1938 | Box 146 \ 1 scan0342 | |
| Repair options and shipping costs for a customer's car. | 8th Aug 1938 | Box 146 \ 1 scan0343 | |
| Letter regarding a delay in a streamlined car's readiness for the Motor Show and projects for new frontal designs. | 9th Aug 1938 | Box 146 \ 1 scan0344 | |
| Repairs for Mrs. Bondy's Chassis 3.CP.48, including sending a new fan and petrol pump. | 9th Aug 1938 | Box 146 \ 1 scan0345 | |
| Customer's letter regarding engine overheating issues and a request for a new fan. | 7th Aug 1938 | Box 146 \ 1 scan0346 | |
| Performance trial results for a Paulin Bentley and a standard car at the Montlhéry circuit. | 30th Jul 1938 | Box 146 \ 1 scan0347 | |
| Calculations predicting the speed of a Paulin Bentley based on drag and vehicle modifications. | 30th Jul 1938 | Box 146 \ 1 scan0348 | |
| Page of calculations for windage, tractive resistance, horsepower, and maximum speed. | 30th Jul 1938 | Box 146 \ 1 scan0349 | |
| Calculations and comparisons of the aerodynamic coefficient 'K' for a car based on its frontal area. | 9th Aug 1938 | Box 146 \ 1 scan0350 | |
| Sending a car to Derby for examination for signs of negligence. | 9th Aug 1938 | Box 146 \ 1 scan0351 | |
| Issues with a customer's car, including overheating, petrol fumes, and vapour lock. | 9th Aug 1938 | Box 146 \ 1 scan0352 | |
| Customer letter detailing an engine overheating issue and requesting a new 5-bladed fan. | 7th Aug 1938 | Box 146 \ 1 scan0353 | |
| Repairs and parts for Mrs. Bondy's car, chassis 3.CP.48, addressing issues caused by hot weather. | 9th Aug 1938 | Box 146 \ 1 scan0354 | |
| Letter from a customer about engine overheating issues in the mountains and requesting a new fan. | 7th Aug 1938 | Box 146 \ 1 scan0355 | |
| Chassis B.38.JD for R.E. James Esq., confirming the car will be sent to Derby. | 10th Aug 1938 | Box 146 \ 1 scan0356 | |
| Letter to Bentley Motors regarding a customer complaint about harsh springing on chassis B.60.GA and proposed wheel modifications. | 11th Aug 1938 | Box 146 \ 1 scan0357 | |
| Policy for fitting large capacity oil pumps to Bentley 3 1/2 and 4 1/4 litre chassis. | 11th Mar 1938 | Box 146 \ 1 scan0358 | |
| Comparison of rear seat room dimensions between a Vanvooren Bentley and other standard Bentley models. | 12th Aug 1938 | Box 146 \ 1 scan0359 | |
| Fitting larger 6.50 x 17 tyres for a customer, noting potential for low-speed wobbles and heavier steering. | 15th Aug 1938 | Box 146 \ 1 scan0360 | |
| Requesting to obtain a pair of wind lamps, as seen on a Talbot car, for use on an experimental car. | 17th Aug 1938 | Box 146 \ 1 scan0361 | |
| Confirming the fitting of a new radiator matrix has resolved an overheating issue on chassis 3.AZ.218 for Mrs. Snagge. | 18th Aug 1938 | Box 146 \ 1 scan0362 | |
| Letter from a customer's chauffeur confirming a radiator repair has resolved an overheating issue. | 4th Aug 1938 | Box 146 \ 1 scan0363 | |
| Letter explaining the causes of low-speed wobble in cars, and discussing wind resistance. | 19th Aug 1938 | Box 146 \ 1 scan0364 | |
| From Rm/Gry to Sr. regarding an article in the magazine 'La Vie Automobile'. | 20th Aug 1938 | Box 146 \ 1 scan0365 | |
| Letter responding to an inquiry with an enclosed illustration of a wing lamp. | 22th Aug 1938 | Box 146 \ 1 scan0366 | |
| French notice illustrating an aerodynamic, chrome-plated brass wing lantern. | 1st Apr 1937 | Box 146 \ 1 scan0367 | |
| To Mr. Bunt advising to hold action as a promising sample lamp has been received from Messrs. Lucas. | 24th Aug 1938 | Box 146 \ 1 scan0368 | |
| Forwarding a customer letter regarding a lost oil filler nut on Chassis B.104.HK and her suggestion for a wire mesh modification. | 25th Aug 1938 | Box 146 \ 1 scan0369 | |
| Customer's suggestion to include a gauze in the filler cap for Chassis B.104.HK. | 31th Aug 1938 | Box 146 \ 1 scan0370 | |
| Acknowledgement of receipt of documents sent to Bentley Motors Ltd in Derby. | 31th Aug 1938 | Box 146 \ 1 scan0371 | |
| Complaint case memo regarding multiple failures on Mr. Benjamin Guinness's car, chassis 3-AZ-150. | 5th Sep 1938 | Box 146 \ 1 scan0372 | |
| The forwarding of a letter and a dismantled oil cooler for repair. | 5th Sep 1938 | Box 146 \ 1 scan0373 | |
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