| Description | Date | Identifier | |
| Despatch of a 25 HP Vauxhall and the decision to retain a Packard for further interest in its suspension. | 22th Nov 1937 | Box 123 \ 4 scan0356 | |
| Disposal of two cars, one to be dismantled and the other for re-sale. | 22th Nov 1937 | Box 123 \ 4 scan0357 | |
| Swapping a non-standard B.20 unit, which requires a one-off job, for a B.22 service unit. | 24th Nov 1937 | Box 123 \ 4 scan0358 | |
| Handover of vehicle 37-EX to the repair department for re-sale. | 29th Nov 1937 | Box 123 \ 4 scan0359 | |
| List of Wraith cars by body style and color with associated references. | 21th Dec 1937 | Box 123 \ 4 scan0360 | |
| Handover of experimental car 22.G.5 to the Repair Department. | 31th Dec 1937 | Box 123 \ 4 scan0361 | |
| Quarterly report from the experimental garage detailing work on Phantom III and 4 1/4 Litre Bentley vehicles for the period ending 31st December 1937. | 6th Jan 1938 | Box 123 \ 4 scan0362 | |
| Test and development notes for the 4 1/4 Litre Bentley and Wraith models. | 6th Jan 1938 | Box 123 \ 4 scan0363 | |
| Status of test cars and chassis, including those used for investigation and those recently disposed of. | 6th Jan 1938 | Box 123 \ 4 scan0364 | |
| Disposing of experimental cars, including a Phantom III, and transferring parts between other models. | 17th Mar 1938 | Box 123 \ 4 scan0365 | |
| The disposal of experimental cars and the analysis of a competitor Jaguar. | 18th Mar 1938 | Box 123 \ 4 scan0366 | |
| Testing of experimental cars, specifically a Jaguar, before it is dismantled. | 21th Mar 1938 | Box 123 \ 4 scan0367 | |
| The handover status of two cars, 32-EX and B-23-AE, for sale preparation. | 2nd Apr 1938 | Box 123 \ 4 scan0368 | |
| List of nine specific work instructions for modifications to a vehicle chassis. | 4th Apr 1938 | Box 123 \ 4 scan0369 | |
| The handover of two experimental cars, a Phantom III and a Bentley, for disposal. | 6th Apr 1938 | Box 123 \ 4 scan0370 | |
| Quarterly report from the experimental garage detailing tests on Phantom III and Bentley models. | 6th Apr 1938 | Box 123 \ 4 scan0371 | |
| Status report on the testing, development, and disposal of various vehicle chassis and components. | 6th Apr 1938 | Box 123 \ 4 scan0372 | |
| Listing required parts modifications and interchanges for car 32.EX. | 6th Apr 1938 | Box 123 \ 4 scan0373 | |
| Quarterly report on cars in the experimental garage for July 1938. | 30th Jun 1938 | Box 123 \ 4 scan0374 | |
| The development and testing of the Bentley 50, Wraith, and other competitor vehicles. | 30th Jun 1938 | Box 123 \ 4 scan0375 | |
| Disposal of an Oldsmobile and a Bentley Chassis, and the consideration of a Buick as a benchmark for a future engine. | 18th Jul 1938 | Box 123 \ 4 scan0376 | |
| Specification sheet detailing special features for the 3.B.IV chassis. | 19th Jul 1938 | Box 123 \ 4 scan0377 | |
| The disposal of an Oldsmobile and a Bentley chassis. | 5th Aug 1938 | Box 123 \ 4 scan0378 | |
| Short note regarding a car delivery delay to Lillie Hall, pending further information from an Oldsmobile. | 8th Aug 1938 | Box 123 \ 4 scan0379 | |
| 1939 Buick, following up on a previously overlooked communication. | 18th Jul 1938 | Box 123 \ 4 scan0380 | |
| Disposal of two cars from the experimental garage. | 3rd Oct 1938 | Box 123 \ 4 scan0381 | |
| Quarterly report from October 1938 detailing the status of cars in the experimental garage. | 3rd Oct 1938 | Box 123 \ 4 scan0382 | |
| Status report on various test cars, detailing their use in development, testing, and their eventual disposal. | 3rd Oct 1938 | Box 123 \ 4 scan0383 | |
| Status report on various experimental cars and ongoing tests as of January 1st. | 3rd Jan 1939 | Box 123 \ 4 scan0384 | |
| Status report on various car chassis, including development, testing, and disposal. | 3rd Jan 1939 | Box 123 \ 4 scan0385 | |
| Work to be done on various experimental cars. | 27th Feb 1939 | Box 123 \ 4 scan0386 | |
| Quarterly report on the development and testing of experimental cars for April 1939. | 1st Apr 1939 | Box 123 \ 4 scan0387 | |
| Use of unlicensed chassis for testing and the disposal of various cars. | 1st Apr 1939 | Box 123 \ 4 scan0388 | |
| Disposal of two experimental cars, 35-EX and 28-G.VI. | 3rd May 1939 | Box 123 \ 4 scan0389 | |
| Repairs and modifications for experimental cars 35-EX and 28-G-VI. | 10th Jun 1939 | Box 123 \ 4 scan0390 | |
| The disposal of items 35.EX and 28.G.VI, requesting if any experimental parts need saving. | 19th Jun 1939 | Box 123 \ 4 scan0391 | |
| Quarterly report on the status and development of experimental cars for June 1939. | 29th Jun 1939 | Box 123 \ 4 scan0392 | |
| The status of competitor cars, unlicenced test rigs and cars disposed of since the last report. | 29th Jun 1939 | Box 123 \ 4 scan0393 | |
| Status report memorandum on experimental cars. | 6th Dec 1939 | Box 123 \ 4 scan0394 | |
| The status of the vehicle fleet, detailing disposals, new acquisitions, and chassis used for testing. | 6th Dec 1939 | Box 123 \ 4 scan0395 | |
| List of cars in the Experimental Garage for the year-end stocktaking of 1939. | 21th Dec 1939 | Box 123 \ 4 scan0396 | |
| Outline of fitting work, including weight analysis for Production Continental, Buick, and Studebaker chassis, and a proposed engine change. | 19th Jan 1940 | Box 123 \ 4 scan0397 | |
| List of Buick vehicle components. | 23th Jan 1940 | Box 123 \ 4 scan0398 | |
| Clarifying a previously quoted number for an experimental chassis. | 3rd Feb 1940 | Box 123 \ 4 scan0399 | |
| Recommendation to use car 25 G.6 as internal transport instead of overhauling it for sale due to its outdated specification. | 3rd Feb 1940 | Box 123 \ 4 scan0400 | |
| Inspection notes on the condition and specification of various vehicle components. | 3rd Feb 1940 | Box 123 \ 4 scan0401 | |
| List of notes and required actions for various car components. | 3rd Feb 1940 | Box 123 \ 4 scan0402 | |
| List of parts and specifications for the Wraith Chassis 25.G.VII. | 3rd Feb 1940 | Box 123 \ 4 scan0403 | |
| List of vehicle components and systems with their associated part and drawing reference numbers, including handwritten annotations. | 3rd Feb 1940 | Box 123 \ 4 scan0404 | |
| Index of engine components and their associated reference numbers. | 3rd Feb 1940 | Box 123 \ 4 scan0405 | |
| List of vehicle components and systems with their corresponding reference numbers. | 3rd Feb 1940 | Box 123 \ 4 scan0406 | |
| List of various automotive components with their corresponding 'LOP' reference numbers. | 3rd Feb 1940 | Box 123 \ 4 scan0407 | |
| Parts list for the Wraith Chassis 25.G.VII. | 3rd Feb 1940 | Box 123 \ 4 scan0408 | |
| List of vehicle components and reference numbers, primarily for the Wraith III engine unit. | 3rd Feb 1940 | Box 123 \ 4 scan0409 | |
| Index of engine component parts and their associated reference numbers. | 3rd Feb 1940 | Box 123 \ 4 scan0410 | |
| List of vehicle components and systems, including gearbox, electrical, and controls, with their associated reference numbers and annotations. | 3rd Feb 1940 | Box 123 \ 4 scan0411 | |
| Index page listing various electrical components and their corresponding drawing or part numbers. | 7th Feb 1940 | Box 123 \ 4 scan0412 | |
| Importance of periodical adjustments for rationalised cars and requesting a parts list. | 7th Feb 1940 | Box 123 \ 4 scan0413 | |
| Requirements for spot lamps and cigarette lighter handles on experimental cars. | 7th Feb 1940 | Box 123 \ 4 scan0414 | |
| Disposition of the non-standard experimental car 25.G.VI and recommending the sale of car 28.G. | 8th Feb 1940 | Box 123 \ 4 scan0415 | |
| The condition and necessary modifications for various car components. | 8th Feb 1940 | Box 123 \ 4 scan0416 | |
| Replacement of a Delco distributor and old-style floorboards. | 3rd Feb 1940 | Box 123 \ 4 scan0417 | |
| The status and financial allowances for Experimental Cars. | 9th Feb 1940 | Box 123 \ 4 scan0418 | |
| Arranging the collection of car 28.G.6 upon delivery of a 7-seater limousine. | 13th Feb 1940 | Box 123 \ 4 scan0419 | |
| Logistical arrangements for exchanging experimental vehicle 25-G-VI. | 14th Feb 1940 | Box 123 \ 4 scan0420 | |
| Telegram-style message about a collection being ready on a Saturday. | 15th Feb 1940 | Box 123 \ 4 scan0421 | |
| Experimental chassis 28-G-VI, its non-standard engine features, and potential modification for sale. | 20th Feb 1940 | Box 123 \ 4 scan0422 | |
| List of chassis parts requiring inspection at 5,000-mile intervals. | 21th Feb 1940 | Box 123 \ 4 scan0423 | |
| Non-standard features of an experimental car, chassis WXA.7. | 24th Feb 1940 | Box 123 \ 4 scan0424 | |
| Agreeing to the conversion of a car into a transport lorry and requesting the allocation of a new engine. | 13th Mar 1940 | Box 123 \ 4 scan0425 | |
| Quarterly report on the status and development of experimental cars for the period ending March 1940. | 30th Mar 1940 | Box 123 \ 4 scan0426 | |
| Distributing blueprints for a new Water Pump Casing for the Bentley 50 Cast Iron Engine. | 31th May 1938 | Box 123 \ 5 scan0001 | |
| Sending preliminary prints and requesting a new drawing for the Bentley 50-8 Cast Iron Engine. | 2nd Jun 1938 | Box 123 \ 5 scan0002 | |
| Design changes for an 8-cylinder Bentley 50 engine. | 20th May 1938 | Box 123 \ 5 scan0003 | |
| Confirming specifications for the patterns of a B.50 Cast Iron Engine. | 2nd Jun 1938 | Box 123 \ 5 scan0004 | |
| New blueprints and a List of Parts (L.O.P.) for the water pump of the Bentley 60 Cast Iron Engine. | 15th Jun 1938 | Box 123 \ 5 scan0005 | |
| Instructions regarding a modified fan mounting and associated new drawings for the Bentley 60 Cast Iron Engine. | 15th Jun 1938 | Box 123 \ 5 scan0006 | |
| Providing new drawings for a modified fan mounting and thermostat components for the Bentley 60 Cast Iron Engine. | 15th Jun 1938 | Box 123 \ 5 scan0007 | |
| Blueprints for Oil Relief Valves and Fittings for the Bentley 60 Cast Iron Engine. | 16th Jun 1938 | Box 123 \ 5 scan0008 | |
| New blueprints for the Bentley 60 Cast Iron Engine camshaft gear and front end. | 17th Jun 1938 | Box 123 \ 5 scan0009 | |
| New drawings for the Bentley 60 Chassis Crankshaft and Camshaft components. | 18th Jun 1938 | Box 123 \ 5 scan0010 | |
| Instructions and blueprints for a Bentley 60 Chassis oil filler, breather pipe, and dipstick. | 18th Jun 1938 | Box 123 \ 5 scan0011 | |
| Request to complete the crankcase detail drawing for the Bentley 80 Straight 8 Cast Iron Engine. | 20th Jun 1938 | Box 123 \ 5 scan0012 | |
| List of new drawings and parts for the Crankshaft Damper on a Bentley 60 Chassis with a cast iron engine. | 23th Jun 1938 | Box 123 \ 5 scan0013 | |
| Sending Bentley 60 Cast Iron Engine blueprints to the Patent Office for investigation. | 25th Jun 1938 | Box 123 \ 5 scan0014 | |
| New drawings and a List of Parts for the Bentley 60 Chassis valves and fittings. | 25th Jun 1938 | Box 123 \ 5 scan0015 | |
| Internal instruction memo regarding cylinder modifications for the Bentley 60 Chassis with a cast iron engine. | 28th Jun 1938 | Box 123 \ 5 scan0016 | |
| Leyland's method of painting the inside of cast iron engine cases to improve bearing cleanliness. | 29th Jun 1938 | Box 123 \ 5 scan0017 | |
| Letter to Ferodo Ltd. regarding belt drawings and the potential cost of new moulds for a new engine. | 29th Jun 1938 | Box 123 \ 5 scan0018 | |
| Letter from Ferodo Limited regarding belt drawings and suggesting alternative mould sizes. | 30th Jun 1938 | Box 123 \ 5 scan0019 | |
| Instructions and new drawing details for the Wheelcase section of the Bentley 60 Chassis (Cast Iron Engine). | 30th Jun 1938 | Box 123 \ 5 scan0020 | |
| Letter to Ferodo Ltd. requesting sample belts for a fan drive based on drawings EB.3927 and EB.3948. | 2nd Jul 1938 | Box 123 \ 5 scan0021 | |
| Instructions and drawing references for the Camshaft (Section 5090) on the Bentley 60 Chassis with a Cast Iron Engine. | 4th Jul 1938 | Box 123 \ 5 scan0022 | |
| Letter from Ferodo Limited regarding a delay in the production of moulds for belts EB.3927 and EB.3948. | 5th Jul 1938 | Box 123 \ 5 scan0023 | |
| Crankshaft for the Bentley 80 model, referencing drawing PD.209 and suggesting new cost-saving measures for trial. | 7th Jul 1938 | Box 123 \ 5 scan0024 | |
| List of new drawings and parts for the Bentley 60 Chassis (Cast Iron Engine). | 7th Jul 1938 | Box 123 \ 5 scan0025 | |
| List of engine component parts with instructions. | 7th Jul 1938 | Box 123 \ 5 scan0026 | |
| Valve acceleration, velocity, and displacement curves for Bentley 60 cams. | 7th Jul 1938 | Box 123 \ 5 scan0027 | |
| High front engine mounting for the Bentley 60 engine, including required modifications and challenges. | 9th Jul 1938 | Box 123 \ 5 scan0028 | |
| The water connections, pump, thermostat and fan for the Bentley 60 Chassis with a cast iron engine. | 12th Jul 1938 | Box 123 \ 5 scan0029 | |
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