| Description | Date | Identifier | |
| From Rm. to GWH seeking clarification on a reported failure and discussing engine mountings. | 6th Jan 1937 | Box 83 \ 1 scan0318 | |
| Confirmation of a telegram reporting a connecting rod failure and requesting new bearings. | 6th Jan 1937 | Box 83 \ 1 scan0319 | |
| Confirmation of a telegram sent regarding a bigend failure. | 6th Jan 1937 | Box 83 \ 1 scan0320 | |
| From Chateauroux, France, requesting tyres and reporting on crankcase modifications. | 5th Jan 1936 | Box 83 \ 1 scan0321 | |
| Car mileage test which resulted in a big-end failure, including temperature readings and engine inspection notes. | 6th Jan 1936 | Box 83 \ 1 scan0322 | |
| The failure of a con-rod bearing due to heat, lack of clearance, and metal seizure. | 7th Jan 1937 | Box 83 \ 1 scan0323 | |
| Request for feedback on the handling of India tyres compared to Dunlop tyres. | 7th Jan 1937 | Box 83 \ 1 scan0324 | |
| Letter detailing the dispatch of connecting rod bearings and the results of an engine component examination. | 7th Jan 1937 | Box 83 \ 1 scan0325 | |
| Hand-drawn sketch of a seized Bentley No. 6 Big End Pin. | 6th Jan 1927 | Box 83 \ 1 scan0326 | |
| Despatching 8 India tyres to compare their handling performance against Dunlop tyres. | 7th Jan 1937 | Box 83 \ 1 scan0327 | |
| The difficulties encountered when fitting a connecting rod due to machining inaccuracies causing bearing distortion. | 10th Jan 1937 | Box 83 \ 1 scan0328 | |
| The difficulties fitting a connecting rod for 6.B.IV due to machining inaccuracies and housing distortion. | 10th Jan 1937 | Box 83 \ 1 scan0329 | |
| Recommendation to run future tests on 6.B.1V with 40 lbs oil pressure. | 11th Jan 1937 | Box 83 \ 1 scan0330 | |
| Asking for clarification on which type of ignition plugs to use, AC or Champion. | 11th Jan 1937 | Box 83 \ 1 scan0331 | |
| Letter clarifying a telegram recommendation for oil pressure during future tests on vehicle 6.B.IV. | 11th Jan 1937 | Box 83 \ 1 scan0332 | |
| The dispatch of engine parts for testing on chassis 6-B-IV in France. | 11th Jan 1937 | Box 83 \ 1 scan0333 | |
| Lack of lubrication to the rear damper and brake equalizer due to a pipe blocked with solder. | 11th Jan 1937 | Box 83 \ 1 scan0334 | |
| Responding to a telegram about oil pressure settings for future vehicle tests. | 11th Jan 1937 | Box 83 \ 1 scan0335 | |
| Expressing concern over the underperformance of Girling brakes on a car. | 1st Jan 1937 | Box 83 \ 1 scan0336 | |
| Lack of lubrication to the rear damper and brake equalizer due to a soldered pipe. | 11th Jan 1937 | Box 83 \ 1 scan0337 | |
| Driver feedback on engine mounting, radiator, and wing movement following a test. | 11th Jan 1937 | Box 83 \ 1 scan0338 | |
| Engine mounting issues and starting handle alignment following the fitting of new wings. | 11th Jan 1937 | Box 83 \ 1 scan0339 | |
| Feedback and test results concerning Girling Brakes on a vehicle. | 12th Jan 1937 | Box 83 \ 1 scan0340 | |
| Field report detailing failures of a down pipe, an oil indicator, and oil surge issues during testing. | 13th Jan 1937 | Box 83 \ 1 scan0341 | |
| Hand-drawn sketch of a front expansion box. | 13th Jan 1937 | Box 83 \ 1 scan0342 | |
| The receipt of Wakefield's oil and Champion spark plugs, detailing issues with plug installation. | 13th Jan 1937 | Box 83 \ 1 scan0343 | |
| Accident report detailing a car crash in France, listing the damage sustained. | 15th Jan 1937 | Box 83 \ 1 scan0344 | |
| Broken exhaust down pipe and a loss of oil pressure related to helical oil pumps. | 15th Jan 1937 | Box 83 \ 1 scan0345 | |
| Oil pressure failure after braking and concerns about standardizing modifications to the oil circulation system. | 15th Jan 1937 | Box 83 \ 1 scan0346 | |
| Missing bolts for the exhaust stay to the crankcase. | 18th Jan 1937 | Box 83 \ 1 scan0347 | |
| Broken Bentley exhaust downtake pipe and arranging a 15,000-mile test for a new aluminized mild steel version. | 18th Jan 1937 | Box 83 \ 1 scan0348 | |
| Car accident involving vehicle 6-B-IV near Limoges, France. | 18th Jan 1937 | Box 83 \ 1 scan0349 | |
| Request to replace rear aluminium brake drums on car 6.B.1V with those from car B.56.BN, and to return a damaged drum from another car. | 21th Jan 1937 | Box 83 \ 1 scan0350 | |
| Requesting the dispatch of replacement parts for vehicle 6-B-IV to Paris. | 21th Jan 1937 | Box 83 \ 1 scan0351 | |
| Telegram requesting a front axle, controls, fittings, and brake components for a Bentley 6 B IV. | 12th Apr 1934 | Box 83 \ 1 scan0352 | |
| Telegram received by telephone, detailing a parts request for a Bentley vehicle. | 20th Jan 1937 | Box 83 \ 1 scan0353 | |
| Telegram requesting a complete front axle assembly and other parts for a Bentley 6 B. Iv. | 20th Jan 1937 | Box 83 \ 1 scan0354 | |
| Sending a replacement front axle with aluminium drums and instructions for brake testing. | 30th Jan 1937 | Box 83 \ 1 scan0355 | |
| Arrangements for the replacement of damaged drums on two vehicles. | 22th Jan 1937 | Box 83 \ 1 scan0356 | |
| Returning a damaged front drum and the status of replacement drums for car B.56.BN. | 25th Jan 1937 | Box 83 \ 1 scan0357 | |
| Confirming the fitting of replacement drums for 56.BN and the return of the original drums. | 27th Jan 1937 | Box 83 \ 1 scan0358 | |
| Inquiring about when a vehicle or engine will be operational again following an accident. | 1st Feb 1937 | Box 83 \ 1 scan0359 | |
| The dispatch of parts for car 6.B.IV to Paris and arranging for vehicle repairs and testing. | 1st Feb 1937 | Box 83 \ 1 scan0360 | |
| Customs delays for parts for car 6.B.IV and the readiness of car 3.B.IV to go to France. | 2nd Feb 1937 | Box 83 \ 1 scan0361 | |
| Spares for Paris, modified rear axle parts for testing, ignition plug issues, and Bentley cylinder bore regrind results. | 3rd Feb 1937 | Box 83 \ 1 scan0362 | |
| Progress of car repairs and acknowledging receipt of a Letter of Credit. | 6th Feb 1937 | Box 83 \ 1 scan0363 | |
| Progress update on car work, including re-erecting the rear axle and body, and acknowledgement of a Letter of Credit. | 6th Feb 1937 | Box 83 \ 1 scan0364 | |
| Status update on the build progress of car 6.B.IV. | 8th Feb 1937 | Box 83 \ 1 scan0365 | |
| Fitting a rear axle, including skimming a tube and changing hubs. | 9th Feb 1937 | Box 83 \ 1 scan0366 | |
| Request for two headlamps without reflectors or bulbs for chassis 6.B.IV to be sent to Levallois, France. | 10th Feb 1937 | Box 83 \ 1 scan0367 | |
| Request for two headlamps for chassis 6.B.IV to be sent to Levallois, France. | 10th Feb 1937 | Box 83 \ 1 scan0368 | |
| Request to return smashed drums from vehicle 6BIV to reuse the special hubs for contraction crackling tests. | 13th Feb 1937 | Box 83 \ 1 scan0369 | |
| Communication about sending new connecting rods with modified material and a modified oil pump to address specific failures. | 15th Feb 1937 | Box 83 \ 1 scan0370 | |
| Instruction to fit six special K.L.G. type E.27 sparking plugs to Chassis 6.B.IV for standardisation testing. | 17th Feb 1937 | Box 83 \ 1 scan0371 | |
| The fitting of an original and a new brake drum to a front axle to continue testing. | 17th Feb 1937 | Box 83 \ 1 scan0372 | |
| To G.W. Hancock in France regarding a Brimol drum and servo cams for vehicle 6-B-IV. | 19th Feb 1937 | Box 83 \ 1 scan0373 | |
| Vehicle testing arrangements in France and technical feedback on steering and handling with roll-pads. | 20th Feb 1937 | Box 83 \ 1 scan0374 | |
| Requesting the current status of a car with regards to re-commencing its test. | 22th Feb 1937 | Box 83 \ 1 scan0375 | |
| Car returning to endurance mileage testing following radiator comparison tests. | 23th Feb 1937 | Box 83 \ 1 scan0376 | |
| Requesting separate copies of correspondence be sent to two individuals during a colleague's absence in England. | 25th Feb 1937 | Box 83 \ 1 scan0377 | |
| Girling brakes servo fault on car 6.B.IV, caused by a narrow slot on the crossmember. | 25th Feb 1937 | Box 83 \ 1 scan0378 | |
| Hand-drawn diagram illustrating a special stop plate on a cross member for a brake servo rod. | 25th Feb 1937 | Box 83 \ 1 scan0379 | |
| Girling brake system foul on vehicle 6.B.1V due to a rod lacking sufficient clearance. | 27th Feb 1937 | Box 83 \ 1 scan0380 | |
| Telegram message concerning the dispatch and stretching of engine valves. | 2nd Mar 1937 | Box 83 \ 1 scan0381 | |
| Telegram received by telephone form. | 2nd Mar 1937 | Box 83 \ 1 scan0382 | |
| Unreliable Lucas horns and sending Delco horns for testing. | 3rd Mar 1937 | Box 83 \ 1 scan0383 | |
| Fitting new con-rods, servo cams, and an expansion box, along with outstanding oil pump and exhaust clip issues. | 3rd Mar 1937 | Box 83 \ 1 scan0384 | |
| Correspondence regarding an exhaust clip that came off a downtake pipe during fitting. | 5th Mar 1937 | Box 83 \ 1 scan0385 | |
| Oil pump failure after braking during a 15,000-mile test and requesting further data. | 8th Mar 1937 | Box 83 \ 1 scan0386 | |
| Chasing a report on the status of a car that was due for completion. | 8th Mar 1937 | Box 83 \ 1 scan0387 | |
| The return of parts for chassis 6.B.IV and a customs declaration reminder for Mr. Hancock. | 8th Mar 1937 | Box 83 \ 1 scan0388 | |
| Letter regarding the return of damaged parts from Chassis 6-B-IV for inspection after an accident. | 4th Mar 1937 | Box 83 \ 1 scan0389 | |
| Instructions and test results for fitting a Chevrolet suction ignition control to a Bentley 3.B.IV unit. | 8th Mar 1937 | Box 83 \ 1 scan0390 | |
| Instructions for replacing the front carburetter and connecting the suction pipe. | 8th Mar 1937 | Box 83 \ 1 scan0391 | |
| Short typed memo to Waller in France requesting reports on 3 B. or 6 B., sent by Grylls. | 8th Mar 1937 | Box 83 \ 1 scan0392 | |
| Fault with an exhaust system clip slipping off the lagging and a proposed solution. | 8th Mar 1937 | Box 83 \ 1 scan0393 | |
| Received telegram regarding missing reports and the corresponding reply sent. | 8th Mar 1937 | Box 83 \ 1 scan0394 | |
| Comparison tests of vehicles 3.B.IV and 6.B.IV in France. | 9th Mar 1937 | Box 83 \ 1 scan0395 | |
| Modification to the rear Girling hand brake lever to make it easier to operate. | 9th Mar 1937 | Box 83 \ 1 scan0396 | |
| Clarifying a misunderstanding about an exhaust system and advising on a new gearbox stay design. | 10th Mar 1937 | Box 83 \ 1 scan0397 | |
| Clarifying a previous memo regarding the exhaust system's lagging clip and discussing a production modification. | 10th Mar 1937 | Box 83 \ 1 scan0398 | |
| Performance of an oil pump and filter element on vehicles 6.B.IV and 35-EX. | 10th Mar 1937 | Box 83 \ 1 scan0399 | |
| Leverage, adjustments, and performance of rear Girling brakes. | 11th Mar 1937 | Box 83 \ 1 scan0400 | |
| Examination and subsequent repairs carried out on a vehicle's front brakes. | 12th Mar 1937 | Box 83 \ 1 scan0401 | |
| Repeated fracturing of the main oil pipe from the pump to the Tecalemit filter. | 12th Mar 1937 | Box 83 \ 1 scan0402 | |
| Requesting a comparison of oil pressure recovery after braking under different filter arrangements for models 6.B.IV and 35-EX. | 13th Mar 1937 | Box 83 \ 1 scan0403 | |
| Internal correspondence regarding the oil used in chassis 35-EX and an ongoing oil test on a Phantom III. | 14th Mar 1930 | Box 83 \ 1 scan0404 | |
| Telegram requesting new top and bottom oil pipes for a Tecalemit filler for chassis Grylics 6B. | 14th Mar 1930 | Box 83 \ 1 scan0405 | |
| Modifications and testing of an external filter, including pipe and bracket issues. | 15th Mar 1937 | Box 83 \ 1 scan0406 | |
| Requesting the return of a changed O.S. front drum and other defective brake components to Derby. | 15th Mar 1937 | Box 83 \ 1 scan0407 | |
| Telegram to Waller in France with instructions to stiffen a filter bracket. | 15th Mar 1937 | Box 83 \ 1 scan0408 | |
| Urgent request to fabricate a more rigid bracket and oil pipe set due to reports of breakages from vibration. | 15th Mar 1937 | Box 83 \ 1 scan0409 | |
| Following up on a telegram about oil pipe failure on car 6.B.IV, requesting thicker gauge replacement pipes. | 14th Mar 1937 | Box 83 \ 1 scan0410 | |
| Operation and potential improvements for the rear Girling brakes, specifically the handbrake. | 14th Mar 1937 | Box 83 \ 1 scan0411 | |
| Examination report on the condition of rear Girling brakes following complaints of groans and loss of adjustment. | 14th Mar 1937 | Box 83 \ 1 scan0412 | |
| Telegram received by telephone regarding a broken silchrome exhaust valve on cylinder number four. | 16th Mar 1937 | Box 83 \ 1 scan0413 | |
| Telegram with instructions for replacing exhaust valves and reporting an oil pressure issue. | 16th Mar 1937 | Box 83 \ 1 scan0414 | |
| Confirming the dispatch of a complete piston to Chateauroux, France, by Air Mail. | 17th Mar 1937 | Box 83 \ 1 scan0415 | |
| Telegram requesting a complete piston for vehicle 6-BIV and reporting an oil pressure issue on vehicle 3-BIV. | 16th Mar 1937 | Box 83 \ 1 scan0416 | |
| Confirmation of a telegram regarding a broken exhaust valve and a scored cylinder on a Bentley. | 16th Mar 1937 | Box 83 \ 1 scan0417 | |
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