| Description | Date | Identifier | |
| Modifications making it impossible to get a 'jagger', and prioritizing work due to a disastrous accident. | 2nd Mar 1936 | Box 88 \ 2 scan0168 | |
| Test report detailing performance metrics such as speed, oil pressure, and consumption after a run from Porlock Hill. | 3rd Mar 1936 | Box 88 \ 2 scan0169 | |
| Plan for an experimental body and the 4-B-4 chassis. | 5th Mar 1936 | Box 88 \ 2 scan0170 | |
| Repair of a chassis and options for experimental and production bodywork. | 3rd Mar 1936 | Box 88 \ 2 scan0171 | |
| Inspection report on the front axle of a Bentley Demonstration Chassis B.3-GA. | 5th Mar 1936 | Box 88 \ 2 scan0172 | |
| Experimental engine unit in car 4-B-IV and a suggestion to swap it to save costs. | 6th Mar 1936 | Box 88 \ 2 scan0173 | |
| The allocation of a 3 1/2-litre Bentley car for 'Lp', stating it is for standard use and not experimental purposes. | 9th Mar 1936 | Box 88 \ 2 scan0174 | |
| Modifications and test results for car GUB-5. | 12th Mar 1936 | Box 88 \ 2 scan0175 | |
| Trial results for Chassis No. B.2.GA, comparing its performance at Brooklands against a 3.5 litre model. | 16th Mar 1936 | Box 88 \ 2 scan0176 | |
| Requesting the return of an engine, gearbox, and all road springs to the Experimental Department. | 17th Mar 1936 | Box 88 \ 2 scan0177 | |
| Replacement of the engine in 'Wor's Car' (GUB-5) with a new production big bore 20/25 unit. | 18th Mar 1936 | Box 88 \ 2 scan0178 | |
| Requesting the return of damaged but repairable units for inspection regarding Chassis No. 4-B-IV. | 31th Mar 1936 | Box 88 \ 2 scan0179 | |
| The examination of damaged parts for Chassis No. 4-B-IV. | 2nd Apr 1936 | Box 88 \ 2 scan0180 | |
| Request to scrap broken and useless material from a car, specifically the front axle and associated parts. | 9th Apr 1936 | Box 88 \ 2 scan0181 | |
| Instructions for the rebuild of car 4-B-IV, detailing which parts from a new Bentley front axle should be used or scrapped. | 15th Apr 1936 | Box 88 \ 2 scan0182 | |
| Urgent memo regarding the delay in dispatching chassis No. 4.B.IV, which has been re-numbered B.5-GA, due to awaiting an engine. | 27th Apr 1936 | Box 88 \ 2 scan0183 | |
| Repair and re-numbering of a secondhand Bentley chassis and its associated saloon body. | 25th Apr 1936 | Box 88 \ 2 scan0184 | |
| Clarifying a misunderstanding about an experimental engine unit fitted to car 4-B-IV. | 1st May 1936 | Box 88 \ 2 scan0185 | |
| The replacement of stretched spring rings and new linings for a 4-B-IV servo. | 4th May 1936 | Box 88 \ 2 scan0186 | |
| The clutch of car B-2-GA following London Trials and requesting its prompt return. | 12th May 1936 | Box 88 \ 2 scan0187 | |
| Query regarding the cause of a clutch issue on a Bentley Trials Saloon B-4-GA and an urgent request for its return. | 21th May 1936 | Box 88 \ 2 scan0188 | |
| The collection of a Bentley Trials Saloon B-4-GA to test clutch modifications. | 22th May 1936 | Box 88 \ 2 scan0189 | |
| Confirmation regarding clutch modifications and handover of Bentley Trials Car B-4-GA. | 22th May 1936 | Box 88 \ 2 scan0190 | |
| Confirmation of a telephone conversation regarding the collection of a B.4.GA. demonstration Saloon for a press run. | 22th May 1936 | Box 88 \ 2 scan0191 | |
| Correspondence regarding the return of a London Trials Coupe due to a clutch fault that causes an 'appalling jagger' when hot. | 15th Jun 1936 | Box 88 \ 2 scan0192 | |
| Confirming a telephone conversation about sending a Bentley B-2-GA trial car for inspection due to mechanical issues. | 16th Jun 1936 | Box 88 \ 2 scan0193 | |
| Tyre noise on different car models and running on Discol fuel. | 16th Jun 1936 | Box 88 \ 2 scan0194 | |
| Faulty clutch from trials car B-2-GA due to irregular friction facing thickness. | 23th Jun 1936 | Box 88 \ 2 scan0195 | |
| Request to Mr. Drawford for the mileage of a 4 1/4 litre Bentley trials car for examination if it exceeds 10,000 miles. | 11th Sep 1936 | Box 88 \ 2 scan0196 | |
| Mileage figures for 4 1/4 litre Bentley trials cars. | 14th Sep 1936 | Box 88 \ 2 scan0197 | |
| Cancelling previous instructions to rebuild the engine for trials car B-3-GA with standard bearings and shims. | 25th Sep 1936 | Box 88 \ 2 scan0198 | |
| Cover note regarding remarks on TrialsCar No.3-AZ-38. | 1st Oct 1936 | Box 88 \ 2 scan0199 | |
| Investigation of valve and tappet mechanism issues on trials car 3-AZ-38. | 29th Sep 1936 | Box 88 \ 2 scan0200 | |
| Internal memorandum regarding an unsatisfactory clutch on the London Trials Coupe, car B-2-GA. | 14th Oct 1936 | Box 88 \ 2 scan0201 | |
| Requesting modifications for the B-2-GA London Trials Coupe, including a probable clutch change. | 14th Oct 1936 | Box 88 \ 2 scan0202 | |
| Notification regarding the dispatch of chassis B 2 GA to address an issue with the clutch jagger. | 14th Oct 1936 | Box 88 \ 2 scan0203 | |
| File note detailing the weight of a B.2.GA Trials Coupe. | 16th Oct 1936 | Box 88 \ 2 scan0204 | |
| Arranging the collection of chassis number B 2 GA. | 16th Oct 1936 | Box 88 \ 2 scan0205 | |
| Arranging a demonstration run in Birmingham for a Demonstration Saloon, chassis number B.3.GA. | 8th Oct 1936 | Box 88 \ 2 scan0206 | |
| Repair of a rear axle oil leak and the fitting of new experimental oil seals. | 31th Oct 1936 | Box 88 \ 2 scan0207 | |
| Confirming arrangements for a driver to collect a demonstration saloon car. | 2nd Nov 1936 | Box 88 \ 2 scan0208 | |
| Arranging an appointment for a driver with a demonstration saloon car. | 2nd Nov 1936 | Box 88 \ 2 scan0209 | |
| Complaint case follow-up requesting a report on a sheared road shaft for chassis B-189-BL. | 10th Nov 1936 | Box 88 \ 2 scan0210 | |
| Two Bentley cars for Guy A. Vandervell and Geoffrey Vandervell, discussing bearings and potential performance upgrades. | 11th Nov 1936 | Box 88 \ 2 scan0211 | |
| Half shaft failure caused by inaccurate machining and a below-standard finish. | 13th Nov 1936 | Box 88 \ 2 scan0212 | |
| Unsatisfactory clutch on a car undergoing London Trials, which is being sent for investigation and decarbonisation. | 30th Nov 1936 | Box 88 \ 2 scan0213 | |
| Car with clutch and transmission issues during London trials, and the remedial actions taken. | 3rd Dec 1936 | Box 88 \ 2 scan0214 | |
| The performance of a car's clutch during London trials. | 10th Dec 1936 | Box 88 \ 2 scan0215 | |
| Test drive report evaluating a car's performance with different fuels, along with commentary on handling, comfort, and noise levels. | 4th Jan 1937 | Box 88 \ 2 scan0216 | |
| Car's handling, specifically shock absorbers and steering slackness, compared to a standard Bentley. | 4th Jan 1937 | Box 88 \ 2 scan0217 | |
| Requesting confirmation of engine decarbonisation for a Bentley trials car. | 8th Jan 1937 | Box 88 \ 2 scan0218 | |
| Inquiry about the status and programme for car B-61-FC, and its preparation for sale. | 27th May 1937 | Box 88 \ 2 scan0219 | |
| Status and experimental coachwork features of two cars, one being chassis B-61-FC. | 28th May 1937 | Box 88 \ 2 scan0220 | |
| Private memo detailing a 407-mile journey in a Bentley, visiting several aerodromes. | 3rd Jun 1937 | Box 88 \ 2 scan0221 | |
| Preparations for the London Trials Saloon B.119.JY, including fitting new cams and checking brakes. | 9th Jun 1937 | Box 88 \ 2 scan0222 | |
| Arrangements for a Bentley London Trials Saloon B-119-JY to be loaned to a writer from 'The Motor' for a technical review. | 9th Jun 1937 | Box 88 \ 2 scan0223 | |
| Seeking clarification on the standardization of brake cams and the implementation of servo improvements. | 11th Jun 1937 | Box 88 \ 2 scan0224 | |
| Modifications and testing of the Bentley London Trials car B.119.JY. | 15th Jun 1937 | Box 88 \ 2 scan0225 | |
| Telegram requesting to use a car at Brooklands for comparative tests for two hours. | 4th Aug 1937 | Box 88 \ 2 scan0226 | |
| Owner's complaint report for a Bentley with a noisy rear axle due to a fractured pinion extension piece. | 20th Aug 1937 | Box 88 \ 2 scan0227 | |
| Performance data from tests at Brooklands comparing different vehicle and tyre configurations. | 6th Aug 1937 | Box 88 \ 2 scan0228 | |
| Investigation into bearing shell distortion and seizure on Chassis B-117-JY following a top decarb. | 10th Sep 1937 | Box 88 \ 2 scan0229 | |
| Relinquishment of car B-117-JY, a tyre change, and results from Arctic Oil Tests. | 7th Feb 1938 | Box 88 \ 2 scan0230 | |
| Request to fit a modified throttle spring anchorage to a Bentley B.50.LS car for Mr. Lappin. | 22th Feb 1938 | Box 88 \ 2 scan0231 | |
| Requesting to fit an experimental bearing to a Bentley rear axle. | 9th Mar 1938 | Box 88 \ 2 scan0232 | |
| The fitting of a preloaded pinion bearing to a Bentley rear axle. | 10th Mar 1938 | Box 88 \ 2 scan0233 | |
| Short memo regarding a visit to Derby concerning Bentley rear axles. | 11th Mar 1938 | Box 88 \ 2 scan0234 | |
| Requesting details about the failure of an experimental petrol pump on chassis B.50.LS. | 16th Mar 1938 | Box 88 \ 2 scan0235 | |
| The investigation of a petrol pump fault on chassis B.50.LS. | 21th Mar 1938 | Box 88 \ 2 scan0236 | |
| Request to schedule the fitting of a Lucas starter motor and a Delco-Remy distributor on a Bentley B.50.LS. | 3rd May 1938 | Box 88 \ 2 scan0237 | |
| Brief memo regarding arrangements for a car at the Works. | 4th May 1938 | Box 88 \ 2 scan0238 | |
| Report comparing mileage and performance for large, small, and standard tyre sizes. | 7th May 1938 | Box 88 \ 2 scan0239 | |
| Instructions for fitting a modified thermostat to Lappin's Car B.50.LS. | 18th May 1938 | Box 88 \ 2 scan0240 | |
| Serious engine failure in Bentley Saloon No. B-2-LS while on loan. | 12th Jul 1938 | Box 88 \ 2 scan0241 | |
| Reminder note requesting a report on the cause of an engine failure for the B-2-LS Bentley Trials Car. | 18th Jul 1938 | Box 88 \ 2 scan0242 | |
| Examination report on a Bentley Trials Saloon (B.2.LS) following a piston and big end bearing failure. | 19th Jul 1938 | Box 88 \ 2 scan0243 | |
| Continued report discussing flywheel 'flap' and its effect on bearing clearance and wear. | 19th Jul 1938 | Box 88 \ 2 scan0244 | |
| The supply and fitment instructions for Aerolite and R.R. T slot pistons for a car belonging to Lappin. | 6th Aug 1938 | Box 88 \ 2 scan0245 | |
| Request to a customer to monitor oil consumption and schedule an inspection for an engine fitted with special test components. | 17th Aug 1938 | Box 88 \ 2 scan0246 | |
| Telex message requesting pinion bearings removed from a customer's car. | 5th Sep 1938 | Box 88 \ 2 scan0247 | |
| Notification regarding the despatch of a pinion thrust bearing removed from a chassis. | 6th Sep 1938 | Box 88 \ 2 scan0248 | |
| Arrangements for the delivery and handover of demonstration saloon B.82.MR. | 28th Jan 1939 | Box 88 \ 2 scan0249 | |
| Requesting an opinion on the rear axle for Chassis No. B 82 MR due to complaints, with a handwritten note confirming its replacement. | 30th Jan 1939 | Box 88 \ 2 scan0250 | |
| The stripping and examination of a Bentley car after completing 50,000 miles. | 31th Jan 1939 | Box 88 \ 2 scan0251 | |
| Arranging for replacement hand tools to be dispatched for a Bentley car, chassis B.2.MR. | 31th Jan 1939 | Box 88 \ 2 scan0252 | |
| Performance report on Demonstration Saloon B.82.MR, detailing engine check, speedometer accuracy, and rear axle replacement. | 1st Feb 1939 | Box 88 \ 2 scan0253 | |
| Performance, speedometer error, and rear axle of demonstration saloon B.82.MR. | 3rd Feb 1939 | Box 88 \ 2 scan0254 | |
| Arranging the loan of a Bentley overdrive trials car for a road test by Mr Laurence Pomeroy. | 17th Mar 1939 | Box 88 \ 2 scan0255 | |
| Several car faults and discussing tyre mileage under summer conditions. | 18th Mar 1939 | Box 88 \ 2 scan0256 | |
| Internal communication about sending car B-4-MR to Derby and updates on the Streamline Bentley. | 18th Mar 1939 | Box 88 \ 2 scan0257 | |
| Letter to a colleague in hospital discussing their Bentley and a defence unit camp. | 20th Mar 1939 | Box 88 \ 2 scan0258 | |
| Personal letter from a hospital bed discussing health and personal affairs. | 21th Mar 1939 | Box 88 \ 2 scan0259 | |
| To arrange the collection of a Bentley trials car from Messrs. Park Ward. | 21th Mar 1939 | Box 88 \ 2 scan0260 | |
| Work to be carried out on a Bentley B.50.LS. | 21th Mar 1939 | Box 88 \ 2 scan0261 | |
| The replacement of a cylinder block and pistons on Lappin's Car (B.50.LS.). | 21th Mar 1939 | Box 88 \ 2 scan0262 | |
| Correcting the size of oversize pistons for Lappin's Car and requesting the cylinder block be machined accordingly. | 22th Mar 1939 | Box 88 \ 2 scan0263 | |
| Work carried out on a B.2.MR trials Bentley, detailing brake and engine issues. | 28th Mar 1939 | Box 88 \ 2 scan0264 | |
| Delivery note for a Bentley car returned to W. Lappin, Esq. after repairs. | 3rd Apr 1939 | Box 88 \ 2 scan0265 | |
| Delivery note for a repaired Bentley car, chassis number B.50.LS. | 3rd Apr 1939 | Box 88 \ 2 scan0266 | |
| Letter from Rm to Lp regarding their health and the completion of their car. | 3rd Apr 1939 | Box 88 \ 2 scan0267 | |
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