| Description | Date | Identifier | |
| Brief typed memo with location details, measurements, and names. | 18th Mar 1937 | Box 82 \ 5 scan0055 | |
| Broken valve spring (EB 3256) from car 3.B.IV, detailing its failure and temporary replacement with a part from car 6.B.IV. | 18th Mar 1937 | Box 82 \ 5 scan0056 | |
| Noticeable fault in the appearance of dummy shutters compared to standard shutters. | 18th Mar 1937 | Box 82 \ 5 scan0057 | |
| Broken No. 6 valve spring on car 3. B. IV. | 18th Mar 1937 | Box 82 \ 5 scan0058 | |
| Specifications for the lengths of foot brake equalizer levers for a standard Bentley, including an alternative system. | 19th Mar 1937 | Box 82 \ 5 scan0059 | |
| Changing brake lining type for the 3.B.IV model due to squeaking issues. | 19th Mar 1937 | Box 82 \ 5 scan0060 | |
| Worn-out rear brakes after 2,000 miles and a request for relining and sending parts. | 19th Mar 1937 | Box 82 \ 5 scan0061 | |
| Urgent request from France for a new centre plate for a broken slipper wheel. | 20th Mar 1937 | Box 82 \ 5 scan0062 | |
| From France discussing brake equalizer lever lengths, specifications, and issues with non-standard parts. | 21th Mar 1937 | Box 82 \ 5 scan0063 | |
| Acknowledging remarks on brake liners and confirming a future opinion on their squeaking characteristics once fitted. | 22th Mar 1937 | Box 82 \ 5 scan0064 | |
| Dispatch note confirming a slipper wheel centre has been sent by air mail to Paris. | 22th Mar 1937 | Box 82 \ 5 scan0065 | |
| Request for a new spring drive centre and proposing to combine the repair with a brake re-lining in Paris. | 22th Mar 1937 | Box 82 \ 5 scan0066 | |
| Requesting verification of a prop shaft sliding joint and damper settings due to modifications. | 22th Mar 1937 | Box 82 \ 5 scan0067 | |
| Requesting the dispatch of Bentley front brake equalizer levers and an examination of all experimental cars to correct previous mistakes. | 24th Mar 1937 | Box 82 \ 5 scan0068 | |
| Modifications to the isolated change gear lever. | 24th Mar 1937 | Box 82 \ 5 scan0069 | |
| From Chateauroux, France, discussing issues with propeller shaft damper poundage and friction surfaces. | 24th Mar 1937 | Box 82 \ 5 scan0070 | |
| Sending a complete front Bentley equalizer shaft and levers to France. | 25th Mar 1937 | Box 82 \ 5 scan0071 | |
| Responding to a complaint about the sideways movement of an isolated change gear lever. | 2nd Apr 1937 | Box 82 \ 5 scan0072 | |
| Despatch and fitting instructions for diaphragm assemblies. | 7th Apr 1937 | Box 82 \ 5 scan0073 | |
| Report from France detailing a broken exhaust system flange after 4,700 miles. | 11th Apr 1937 | Box 82 \ 5 scan0074 | |
| Telegram reporting a broken aluminised front expansion box flange being returned for examination. | 31th Oct 1911 | Box 82 \ 5 scan0075 | |
| Telegram concerning a broken aluminised front expansion box flange being returned for examination. | 12th Apr 1937 | Box 82 \ 5 scan0076 | |
| Request to return the front expansion box and downtake pipe of an exhaust system for examination. | 12th Apr 1937 | Box 82 \ 5 scan0077 | |
| The despatch of a replacement Front Expansion Box for a Bentley 3-B-IV undergoing trials in France. | 14th Apr 1937 | Box 82 \ 5 scan0078 | |
| Post Office Telegram urgently requesting a front expansion box. | 14th Apr 1937 | Box 82 \ 5 scan0079 | |
| Telegram received by telephone regarding an urgent request for parts. | 14th Apr 1937 | Box 82 \ 5 scan0080 | |
| Confirmation of a telegram sent to request a front expansion box urgently for car chassis Grylls 3BIV. | 14th Apr 1937 | Box 82 \ 5 scan0081 | |
| Telegram-style message sent to Waller in France confirming an item is in running condition. | 16th Apr 1937 | Box 82 \ 5 scan0082 | |
| Telegram received by telephone requesting permission to run item 3BIV until 6BIV is repaired. | 16th Apr 1936 | Box 82 \ 5 scan0083 | |
| Telegram received by telephone regarding the repair of vehicle or engine parts. | 16th Apr 1936 | Box 82 \ 5 scan0084 | |
| Fan modifications, water joint materials, and a distributor seizure investigation. | 17th Apr 1937 | Box 82 \ 5 scan0085 | |
| The inspection and repair of a rear axle pinion, detailing a worn thrust washer and other issues. | 18th Apr 1937 | Box 82 \ 5 scan0086 | |
| Arrangement of sending 6 1/2 x 17 covers and tubes from the India Tyre Co. for testing in France. | 20th Apr 1937 | Box 82 \ 5 scan0087 | |
| Failure report on a new type of Lucas Screen Wiper operating mechanism. | 20th Apr 1937 | Box 82 \ 5 scan0088 | |
| Returning a faulty and previously repaired electrical horn diaphragm disc for inspection. | 20th Apr 1937 | Box 82 \ 5 scan0089 | |
| Oil consumption and crankcase pressure tests with a 30 HP type oil filler, comparing results with and without a rocker cover breather. | 21th Apr 1937 | Box 82 \ 5 scan0090 | |
| Test results for crankcase pressure at various speeds with a crankcase breather only. | 21th Apr 1937 | Box 82 \ 5 scan0091 | |
| Oil consumption and crankcase pressure tests with a 30 HP type oil filler and crankcase breather. | 21th Apr 1937 | Box 82 \ 5 scan0092 | |
| Crankcase breather pressure test results at various speeds. | 21th Apr 1937 | Box 82 \ 5 scan0093 | |
| Fitting of a pressed blade fan, water joints, and the seizure of a Delco-Remy distributor. | 22th Apr 1937 | Box 82 \ 5 scan0094 | |
| Communication regarding a strengthened link for a new type of Lucas windscreen wiper. | 22th Apr 1937 | Box 82 \ 5 scan0095 | |
| The failure and repair of a Lucas windscreen wiper mechanism, including a diagram of the faulty parts. | 25th Apr 1937 | Box 82 \ 5 scan0096 | |
| Replacement link for a broken Lucas windscreen wiper on a 3.B.IV model. | 26th Apr 1937 | Box 82 \ 5 scan0097 | |
| Letter from Joseph Lucas Ltd. regarding a fractured wiper link and the dispatch of a thickened replacement part. | 23th Apr 1937 | Box 82 \ 5 scan0098 | |
| Performance and handling review of a vehicle, noting issues with steering, gearbox, and suspension. | 29th Apr 1937 | Box 82 \ 5 scan0099 | |
| Test drive report and critique of car 3. B. IV, covering engine, steering, gearbox, clutch, and suspension performance. | 29th Apr 1937 | Box 82 \ 5 scan0100 | |
| The transfer of a Tecalemit filter, wheels, oil pipes, and a pendulum lever between chassis 6.B.IV and 3.B.IV. | 3rd May 1937 | Box 82 \ 5 scan0101 | |
| Tests on a pressed blade fan and standardising the Wraith type for Bentley and 25/30 HP cars. | 4th May 1937 | Box 82 \ 5 scan0102 | |
| Tests on crankcase pressures with different breather configurations. | 4th May 1937 | Box 82 \ 5 scan0103 | |
| Test report on crankcase breather pressures with different configurations at various speeds. | 4th May 1937 | Box 82 \ 5 scan0104 | |
| Standardising tested Wraith fan blades for use on Bentley and 25/30 HP cars. | 4th May 1937 | Box 82 \ 5 scan0105 | |
| Wear on the pins and bushes of the anti-judder device on the front brakes of vehicles 6.B.IV and 3.B.IV. | 4th May 1937 | Box 82 \ 5 scan0106 | |
| Investigation into engine misfires, spark plug gaps, and carburettor problems. | 9th May 1937 | Box 82 \ 5 scan0107 | |
| Typed letter from Chateauroux, France, regarding tyre testing and logistics for car 3.B.IV. | 10th May 1937 | Box 82 \ 5 scan0108 | |
| The testing and comparison of two different sizes of India tyres in Chateauroux, France. | 10th May 1937 | Box 82 \ 5 scan0109 | |
| Telegram from Waller to Gardiner regarding steering column shake and spare wheel removal. | 10th May 1937 | Box 82 \ 5 scan0110 | |
| Instructions for continuing an engine run with new K.L.G. spark plugs and a request to measure the old plug gaps. | 10th May 1937 | Box 82 \ 5 scan0111 | |
| Engine misfires due to burnt spark plug points. | 11th May 1937 | Box 82 \ 5 scan0112 | |
| Request to send a complete set of standard Bentley dynamo brushes to France for fitting. | 11th May 1937 | Box 82 \ 5 scan0113 | |
| Broken silencing system downpipe and a request for a new replacement part. | 11th May 1937 | Box 82 \ 5 scan0114 | |
| Urgent internal request for parts for a Bentley Chassis No.3-B-IV to be dispatched to France. | 13th May 1937 | Box 82 \ 5 scan0115 | |
| Broken silencing system and the dispatch of replacement parts. | 11th May 1937 | Box 82 \ 5 scan0116 | |
| Instructions for fitting and bedding a new set of dynamo brushes. | 11th May 1937 | Box 82 \ 5 scan0117 | |
| The dispatch of faulty FLB.50.X. plugs with wide and burnt gaps for inspection. | 12th May 1937 | Box 82 \ 5 scan0118 | |
| Requesting the despatch of India covers and tubes to Mr. Hancock in France. | 13th May 1937 | Box 82 \ 5 scan0119 | |
| Broken top leaf of a Wilmot-Breeden front stabiliser and its effect on chassis shake. | 13th May 1937 | Box 82 \ 5 scan0120 | |
| The failure and repair of petrol pumps, identifying worn brass distance pieces as the cause. | 13th May 1937 | Box 82 \ 5 scan0121 | |
| Dispatching a replacement Front Expansion Box to France for a Bentley 3-B-IV undergoing 15,000 miles trials. | 13th May 1937 | Box 82 \ 5 scan0122 | |
| Sending a new Delco-Remy distributor for testing on chassis 3.B.1V. | 14th May 1937 | Box 82 \ 5 scan0123 | |
| Delco-Remy Distributor, cancelling a new unit despatch and requesting the return of faulty ignition cables. | 15th May 1937 | Box 82 \ 5 scan0124 | |
| Work carried out and faults found, including a new fan, dynamo brushes, carburettor float, slack U-bolts, and an oil leak from a pinion housing bolt. | 17th May 1937 | Box 82 \ 5 scan0125 | |
| Vehicle maintenance work, detailing newly fitted parts and identified faults with a carburettor float, spring bolts, and an oil leak. | 17th May 1937 | Box 82 \ 5 scan0126 | |
| Sketch of an axle pinion assembly highlighting an oil leak from a specific bolt. | 17th May 1937 | Box 82 \ 5 scan0127 | |
| Sketch showing a crack in an S.U. carburetter float at a soldered joint. | 11th May 1937 | Box 82 \ 5 scan0128 | |
| Report investigating the cause of wing and steering column shake by testing the effect of the side-mounted spare wheel. | 11th May 1937 | Box 82 \ 5 scan0129 | |
| Loose square-headed bolt on the rear axle bridge piece. | 19th May 1937 | Box 82 \ 5 scan0130 | |
| Plug misfiring and a Delco-Remy distributor engine cut-out. | 19th May 1937 | Box 82 \ 5 scan0131 | |
| Sketch of a Delco-Remy make and break assembly showing a failing spring steel clip. | 19th May 1937 | Box 82 \ 5 scan0132 | |
| Comparison table of engine dimensions for various American car models. | 19th May 1937 | Box 82 \ 5 scan0133 | |
| Plug misfiring and a Delco-Remy distributor failure. | 19th May 1937 | Box 82 \ 5 scan0134 | |
| Clarification on the operating conditions of a Wraith type fan on a Bentley. | 21th May 1937 | Box 82 \ 5 scan0135 | |
| Telegram received by telephone from Chateauroux. | 22th May 1937 | Box 82 \ 5 scan0136 | |
| Covering note for a report on a 15,000-mile test conducted in France. | 22th May 1937 | Box 82 \ 5 scan0137 | |
| Telegram regarding personnel and vehicle return arrangements after a 15,000-mile test in France. | 28th May 1937 | Box 82 \ 5 scan0138 | |
| Cylinder block wear, measured at 200 Brinell, and instructions for an engine unit replacement and further inspection. | 24th May 1937 | Box 82 \ 5 scan0139 | |
| The despatch of faulty FLB.50.X. plugs for inspection. | 12th May 1937 | Box 82 \ 5 scan0140 | |
| Engine misfiring issues related to spark plugs and a distributor fault. | 19th May 1937 | Box 82 \ 5 scan0141 | |
| Engine bearing performance, filter options, and test results for the 3.B.IV engine. | 29th May 1937 | Box 82 \ 5 scan0142 | |
| Telegram from Hamilton in Chateauroux to Robotham, confirming completion of 3 BIV 15000. | 22th May 1937 | Box 82 \ 5 scan0143 | |
| 15,000-mile test, Delco-Remy distributor failures, and an enquiry about Corundite plugs. | 26th May 1937 | Box 82 \ 5 scan0144 | |
| Troubleshooting issues with overheating petrol pumps. | 18th May 1937 | Box 82 \ 5 scan0145 | |
| Record of oil changes and pressure filter attention for a vehicle at Chateauroux in 1937. | 28th May 1937 | Box 82 \ 5 scan0146 | |
| The inspection and performance of a 3.B.IV felt oil filter at various mileage intervals. | 28th May 1937 | Box 82 \ 5 scan0147 | |
| The relining of all brakes for vehicle 3.B.1V. | 31th May 1937 | Box 82 \ 5 scan0148 | |
| The performance and failures of Lucas Electric Screen Wipers over 15,500 miles in France. | 1st Jun 1937 | Box 82 \ 5 scan0149 | |
| The performance of the coupling between wiper driving boxes. | 1st Jun 1937 | Box 82 \ 5 scan0150 | |
| The testing of an A.C. Revolution Counter, noting it reads lower than actual engine speed causing vibration and component failure. | 1st Jun 1937 | Box 82 \ 5 scan0151 | |
| 15,500 miles running and cooling tests for Engine Unit N° B.3 on a 3.B.IV. Bentley in France. | 2nd Jun 1937 | Box 82 \ 5 scan0152 | |
| Report page detailing specifications and performance notes on engine components. | 2nd Jun 1937 | Box 82 \ 5 scan0153 | |
| Component performance and failures including pistons, valve springs, carburetter, and oil pump after mileage testing. | 2nd Jun 1937 | Box 82 \ 5 scan0154 | |
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