| Description | Date | Identifier | |
| Despatch of 6 Avon Speed Special tyres to Levallois, Paris for chassis B.12.AW. | 14th Feb 1940 | Box 146 \ 5 scan0271 | |
| Letter confirming the dispatch of washers to Mr. Sleator and offering further assistance. | 14th Feb 1940 | Box 146 \ 5 scan0272 | |
| Troubleshooting report on engine issues for Chassis B-I-CW, specifically petrol mixing with oil and fouling spark plugs. | 14th Feb 1940 | Box 146 \ 5 scan0273 | |
| To arrange a visit to Derby and to follow up on the translation of a seaplane landing gear description. | 17th Feb 1940 | Box 146 \ 5 scan0274 | |
| Attaching a copy of Paris Invoice No.4534 and requesting certification of charges. | 19th Feb 1940 | Box 146 \ 5 scan0275 | |
| Dispatch and billing of 6 Avon Speed Tyre Covers for trials in France. | 21th Feb 1940 | Box 146 \ 5 scan0276 | |
| Confirmation of despatch of 6 Avon Speed Special tyres and tubes for the Paris Trials Car. | 21th Feb 1940 | Box 146 \ 5 scan0277 | |
| Petrol pump issues, discussing fuel composition and diaphragm unit concentricity. | 21th Feb 1940 | Box 146 \ 5 scan0278 | |
| Previous payment of 1,500 francs for photographic activities for the Experimental Department. | 22th Feb 1940 | Box 146 \ 5 scan0279 | |
| Future visit to Derby and a translation of the seaplane landing gear specification. | 26th Feb 1940 | Box 146 \ 5 scan0280 | |
| Requesting the return of Paris invoice No.4534. | 27th Feb 1940 | Box 146 \ 5 scan0281 | |
| Letter proposing to obtain and test a Cotal electromagnetic gearbox for British customers. | 27th Feb 1940 | Box 146 \ 5 scan0282 | |
| The Cotal electromagnetic gearbox, its performance, and usage by French car manufacturers. | 20th Feb 1940 | Box 146 \ 5 scan0283 | |
| The performance and power absorption of Cotal gearboxes, with reference to Peugeot cars. | 20th Feb 1940 | Box 146 \ 5 scan0284 | |
| Translation of a report on the performance and specifications of the Cotal electro-magnetic gearbox. | 20th Feb 1940 | Box 146 \ 5 scan0285 | |
| The pricing, performance, and user feedback of the Cotal gearbox, with comparisons to Peugeot. | 4th Mar 1940 | Box 146 \ 5 scan0286 | |
| Required Cotal gearbox size for a 5.5 litre engine and plans for destructive testing a 3 litre version. | 4th Mar 1940 | Box 146 \ 5 scan0287 | |
| Information on the Cotal gearbox and a request for recommendations for the 5 1/2 litre engine. | 4th Mar 1940 | Box 146 \ 5 scan0288 | |
| The order of an 'Automobile Engineer' Year Book for use in France. | 8th Mar 1940 | Box 146 \ 5 scan0289 | |
| Post office telegram requesting tyre pressures for a Bentley Five chassis. | 12th Mar 1940 | Box 146 \ 5 scan0290 | |
| Correspondence regarding the return of an unused railway ticket half from Derby to London. | 12th Mar 1940 | Box 146 \ 5 scan0291 | |
| Tyre pressures for the Bentley V. | 13th Mar 1940 | Box 146 \ 5 scan0292 | |
| Fix for propeller shaft vibration issues when the vehicle is loaded. | 14th Mar 1940 | Box 146 \ 5 scan0293 | |
| Letter responding to a memo about a continental spare part and tool kit, with suggestions for additional items. | 15th Mar 1940 | Box 146 \ 5 scan0294 | |
| Correspondence thanking for the recommended tyre pressures for a Bentley V. | 20th Mar 1940 | Box 146 \ 5 scan0295 | |
| Telex message giving instructions for invoicing repairs to a Corniche body. | 20th Mar 1940 | Box 146 \ 5 scan0296 | |
| Telegram regarding an invoice and shipping papers for a Corniche body. | 20th Mar 1940 | Box 146 \ 5 scan0297 | |
| Instructions for adjusting B.V. Servos. | 30th Mar 1940 | Box 146 \ 5 scan0298 | |
| Service guide for troubleshooting and repairing Bentley V front dampers. | 1st Apr 1940 | Box 146 \ 5 scan0299 | |
| Steering fault causing a 'craking noise' due to the failure of the GW-1807 outer race. | 1st Apr 1940 | Box 146 \ 5 scan0300 | |
| Notes be written to a customer regarding trouble with front shock absorbers on a new B.V. model. | 1st Apr 1940 | Box 146 \ 5 scan0301 | |
| Road test report on a new Bentley model B.12.AW after 2000 kms of driving. | 2nd Apr 1940 | Box 146 \ 5 scan0302 | |
| Test report detailing issues with a car's stability, brakes, gearbox, and steering. | 2nd Apr 1940 | Box 146 \ 5 scan0303 | |
| Pencil sketch of a front axle and chassis member with cutaway sections indicated. | 2nd Apr 1940 | Box 146 \ 5 scan0304 | |
| Various vehicle issues including noisy tyres, rattles, clearances, and a discussion on fuel octane and valve types. | 2nd Apr 1940 | Box 146 \ 5 scan0305 | |
| Letter requesting technical information about a car's brakes, shock absorbers, and valve settings. | 2nd Apr 1940 | Box 146 \ 5 scan0306 | |
| Covering note addressed to Childs regarding an attached report on Champion Plugs. | 2nd Apr 1940 | Box 146 \ 5 scan0307 | |
| Letter from Champion Sparking Plug Co. regarding a complaint about plug difficulties in Rolls Bentley engines. | 15th Mar 1940 | Box 146 \ 5 scan0308 | |
| Investigation into spark plug fouling issues on a Rolls Bentley, and subsequent testing of different spark plugs and a Delco ignition system. | 4th Mar 1940 | Box 146 \ 5 scan0309 | |
| Query regarding the effect of electrode oxidisation on engine performance after gap checking. | 2nd Apr 1940 | Box 146 \ 5 scan0310 | |
| Letter regarding the urgent dispatch of a clutch centre for a Bentley car used by the R.A.F. in France. | 2nd Apr 1940 | Box 146 \ 5 scan0311 | |
| Confirming the dispatch of a standard 10' Borg & Beck clutch for a B.V. Chassis due to a fault with the existing one. | 5th Apr 1940 | Box 146 \ 5 scan0312 | |
| Letter to W.A. Robotham acknowledging his correspondence about a clutch for S.R. | 6th Apr 1940 | Box 146 \ 5 scan0313 | |
| Telegram requesting an urgent clutch thrust bearing for a B. Twelve chassis. | 8th Apr 1938 | Box 146 \ 5 scan0314 | |
| Authorizing the temporary removal of a clutch thrust from one chassis for another. | 9th Apr 1940 | Box 146 \ 5 scan0315 | |
| Arranging the dispatch of a clutch, lining, and rivets to Mr. Sleator at the Royal Automobile Club. | 10th Apr 1940 | Box 146 \ 5 scan0316 | |
| Sketch for a thermometer bottle adaptor on a Paris Trials Car chassis. | 11th Apr 1940 | Box 146 \ 5 scan0317 | |
| Response to a customer's complaints about various motor car issues. | 11th Apr 1940 | Box 146 \ 5 scan0318 | |
| Request for particulars of an 8 HP SIMCA FIAT induction system. | 11th Apr 1940 | Box 146 \ 5 scan0319 | |
| Chassis clearance and front hydraulic damper issues for the Paris Trials Car. | 12th Apr 1940 | Box 146 \ 5 scan0320 | |
| The diagnosis and repair of issues with dampers, clutch mechanism, and oil flow. | 12th Apr 1940 | Box 146 \ 5 scan0321 | |
| Adjustments to the front brake mechanism, rattling controls, and petrol leaks. | 12th Apr 1940 | Box 146 \ 5 scan0322 | |
| Sketch of the valve mechanism for front hydraulic dampers on Chassis B-12 AW. | 12th Apr 1940 | Box 146 \ 5 scan0323 | |
| List of queries and requests for information regarding the Bentley V Chassis B.12.AW. | 12th Apr 1940 | Box 146 \ 5 scan0324 | |
| Vehicle performance issues including brakes, gearbox noise, and transmission rattle, and considering lever modifications. | 12th Apr 1940 | Box 146 \ 5 scan0325 | |
| Invitation to W. Sleator Esq. to stay and discuss business matters. | 18th Apr 1940 | Box 146 \ 5 scan0326 | |
| To Franco Brittanic Auto regarding modifications to a brake system. | 17th Apr 1940 | Box 146 \ 5 scan0327 | |
| Page 2 of a document concerning measurements in thousandths on a diameter. | 20th Apr 1940 | Box 146 \ 5 scan0328 | |
| Letter from Levallois to Derby confirming a telegram sent earlier that morning requesting the urgent return of a file. | 20th Apr 1940 | Box 146 \ 5 scan0329 | |
| Telegram to Francobrit in France concerning a missing file. | 22th Apr 1940 | Box 146 \ 5 scan0330 | |
| Gearbox noise issues and component swapping on chassis B.12.AW, the Paris Trials Car. | 23th Apr 1940 | Box 146 \ 5 scan0331 | |
| Gearbox noise issues, requesting drawings, blueprints, and springs for a new type of gearbox. | 23th Apr 1940 | Box 146 \ 5 scan0332 | |
| Covering memo regarding a delayed report on the Paris Trials Car, chassis B.12.AW. | 23th Apr 1940 | Box 146 \ 5 scan0333 | |
| The Paris Trials car, chassis B.12.AW, detailing gearbox noise, servo issues, and parts required for repairs. | 15th Apr 1940 | Box 146 \ 5 scan0334 | |
| Telegram concerning an ammunition file left at Park Leys. | 24th Apr 1940 | Box 146 \ 5 scan0335 | |
| Request from Paris for gearbox drawings, specifications for side shaft end play, and various thrust washers. | 25th Apr 1940 | Box 146 \ 5 scan0336 | |
| Fitting raised crown pistons to a Wraith chassis to increase compression. | 26th Apr 1940 | Box 146 \ 5 scan0337 | |
| Short typed message regarding the inability to locate an ammunition file. | 26th Apr 1940 | Box 146 \ 5 scan0338 | |
| Confirmation of parts despatch for the Paris Trials Car B.12.AW. | 26th Apr 1940 | Box 146 \ 5 scan0339 | |
| Requesting the dispatch of Bentley Gearbox parts, including thrust washers and carb needles, to the Royal Automobile Club. | 26th Apr 1940 | Box 146 \ 5 scan0340 | |
| Response to a questionnaire regarding the B.12.AW chassis, covering dampers, gearbox, and brakes. | 26th Apr 1940 | Box 146 \ 5 scan0341 | |
| List of vehicle setup specifications, adjustments, and modifications. | 26th Apr 1940 | Box 146 \ 5 scan0342 | |
| Technical memorandum discussing various mechanical issues and solutions related to the gear lever, suspension, and engine components. | 26th Apr 1940 | Box 146 \ 5 scan0343 | |
| Requesting the dispatch of various gearbox and servo parts for the Paris Trials Car B.12.AW. | 29th Apr 1940 | Box 146 \ 5 scan0344 | |
| Letter concerning a misplaced file containing information and diagrams of ORLICAN ammunition for the M.E.109 aircraft. | 29th Apr 1940 | Box 146 \ 5 scan0345 | |
| Telegram from Robotham to Sleator in Paris enquiring about an experimental Corniche body and travel permits. | 30th Apr 1940 | Box 146 \ 5 scan0346 | |
| Letter concerning a travel permit to France and vacation plans. | 1st May 1940 | Box 146 \ 5 scan0347 | |
| Requesting to add a roll of Bloomsbury Tape to a despatch list for Bentley Gearbox parts. | 3rd May 1940 | Box 146 \ 5 scan0348 | |
| Dispatch of parts for a Bentley Gearbox, including delivery and accounting instructions. | 3rd May 1940 | Box 146 \ 5 scan0349 | |
| Urgent follow-up on gearboxes and a request for parts for the B-I2-AW trials car chassis. | 6th May 1940 | Box 146 \ 5 scan0350 | |
| Query regarding the nitriding of Bentley 4.2 litre crankshafts and the first use of Hykro steel. | 6th May 1940 | Box 146 \ 5 scan0351 | |
| Follow-up letter enquiring about the receipt of an original drawing for a monobloc body. | 2nd May 1940 | Box 146 \ 5 scan0352 | |
| Modifications and issues with a B-I2-AW Paris Trials Car chassis, including radiator packing and rear shock dampers. | 8th May 1940 | Box 146 \ 5 scan0353 | |
| Letter regarding the completion of a Corniche car by Kellners, discussing import licenses, shipping, and logistics. | 9th May 1940 | Box 146 \ 5 scan0354 | |
| Dispatch of various parts for the Chassis B.12.AW Paris Trials Car. | 14th May 1940 | Box 146 \ 5 scan0355 | |
| Search for a new plunger. | 14th May 1940 | Box 146 \ 5 scan0356 | |
| Inquiry regarding the introduction of Hykro steel for Bentley crankshafts and the corresponding chassis number. | 14th May 1940 | Box 146 \ 5 scan0357 | |
| Requesting to find a new plunger based on attached correspondence. | 14th May 1940 | Box 146 \ 5 scan0358 | |
| Hand-drawn sketch with dimensions for a plunger for rear brake shoes. | 1st May 1940 | Box 146 \ 5 scan0359 | |
| Letter regarding engine pinking, brake modifications, and a part request for the Paris Trials Car. | 30th Apr 1940 | Box 146 \ 5 scan0360 | |
| Engine compression ratios, piston options, and carburettor lubrication. | 14th May 1940 | Box 146 \ 5 scan0361 | |
| The despatch of file 'Blythe' for forwarding to Francobritish Automobiles in Paris. | 15th May 1940 | Box 146 \ 5 scan0362 | |
| Letter to Captain Blythe regarding the transmission of a secret file to France. | 15th May 1940 | Box 146 \ 5 scan0363 | |
| Short typed correspondence from Levallois, with a personal handwritten note about the war. | 16th May 1940 | Box 146 \ 5 scan0364 | |
| Acknowledging receipt of a copy of a document regarding two sheets of brass. | 24th May 1940 | Box 146 \ 5 scan0365 | |
| French factory air raid procedures, a personnel issue, and a contract query. | 6th Jun 1940 | Box 146 \ 5 scan0366 | |
| Letter to Mr. Sleator confirming the receipt of a telegram concerning a Bentley chassis payment for American customs. | 27th Dec 1940 | Box 146 \ 5 scan0367 | |
| Patent investigation concerning a clutch with a spring drive and friction damper on the plate. | 20th Mar 1933 | Box 147 \ 1 scan0001 | |
| Adoption of automatic tappets, associated royalties to General Motors, and a request for particulars from Halford. | 11th Apr 1933 | Box 147 \ 1 scan0002 | |
| Major Halford's automatic tappets for a 24-cylinder engine. | 13th Apr 1933 | Box 147 \ 1 scan0003 | |
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