| Description | Date | Identifier | |
| The return of dismantled parts for experimental car Chassis I8 G IV, clarifying issues with customs duty and temporary import permits. | 22th Jun 1933 | Box 5a \ 3 03-page303 | |
| Pro-forma invoice for chassis 18 G IV parts from Anglo-Parisian Automobiles Ltd. | 22th Jun 1933 | Box 5a \ 3 03-page304 | |
| Mileage test results detailing fluid loss in dampers over consecutive days. | 22th Jun 1933 | Box 5a \ 3 03-page305 | |
| Oil loss and alterations to vehicle dampers after mileage tests over several days. | 22th Jun 1933 | Box 5a \ 3 03-page306 | |
| Fluid loss measurements from four points after a 500-mile test. | 22th Jun 1933 | Box 5a \ 3 03-page307 | |
| Brake shoe fitting, testing issues, and a shortage of tyres. | 22th Jun 1933 | Box 5a \ 3 03-page308 | |
| Customs issues regarding the temporary importation of parts for Chassis 18.G.IV Experimental Car. | 23th Jun 1933 | Box 5a \ 3 03-page309 | |
| Covering memo for a report on the 18-G4 car after completing a 15,000-mile test in France. | 23th Jun 1933 | Box 5a \ 3 03-page310 | |
| Vehicle 18.G.IV at 15,000 miles, detailing engine, fuel consumption, and piston performance. | 20th Jun 1933 | Box 5a \ 3 03-page311 | |
| Technical report page detailing investigations into engine piston knock, valve clearance, gear rattle, and carburettor issues. | 20th Jun 1933 | Box 5a \ 3 03-page312 | |
| Carburettor, radiator and fan performance, detailing issues and modifications during hot weather testing. | 20th Jun 1933 | Box 5a \ 3 03-page313 | |
| Performance report on the Flywheel & Clutch, Low Inertia Damper, and Gear Box & Actuating Gear. | 20th Jun 1933 | Box 5a \ 3 03-page314 | |
| Performance and faults of the gearbox, servo motor, steering, and rear axle components after extensive mileage. | 20th Jun 1933 | Box 5a \ 3 03-page315 | |
| Propeller shaft wear and an analysis of front and rear brake performance using different shoe materials. | 20th Jun 1933 | Box 5a \ 3 03-page316 | |
| Analysis of increased brake leverage and comparison of hydraulic damper valve configurations. | 20th Jun 1933 | Box 5a \ 3 03-page317 | |
| Investigation into oil leaks from dampers and a squeak from front axle anchor control brackets. | 20th Jun 1933 | Box 5a \ 3 03-page318 | |
| Technical report on the performance of front axle pivots, exhaust system, and petrol tank and fittings. | 20th Jun 1933 | Box 5a \ 3 03-page319 | |
| Specifications and performance report for front/rear road springs, starter motor, and dynamo. | 20th Jun 1933 | Box 5a \ 3 03-page320 | |
| The performance and condition of battery, ignition, plugs, switch, and wheels. | 20th Jun 1933 | Box 5a \ 3 03-page321 | |
| Car performance metrics including consumption, weight, and tyre specifications. | 4th Jul 1933 | Box 5a \ 3 03-page322 | |
| Customs duty refund for parts returned from an experimental car, which are detained in London. | 4th Jul 1933 | Box 5a \ 3 03-page323 | |
| Page 2 of a letter requesting a procedure to avoid the loss of recoverable duty. | 10th Jul 1933 | Box 5a \ 3 03-page324 | |
| Inability to claim a refund on import duty for parts sent for an experimental car. | 10th Jul 1933 | Box 5a \ 3 03-page325 | |
| Frame distortion test comparing a Terraplane and an 18-G-IV vehicle. | 25th Jan 1934 | Box 5a \ 3 03-page326 | |
| Letter from coachbuilders Hooper & Co. advising of a delay in the completion of a car. | 11th Apr 1935 | Box 5a \ 3 03-page327 | |
| Cover page for a 10,000-mile car test report on a 20/25 HP model. | 1st Jul 1934 | Box 5a \ 4 04-page001 | |
| The position on various items for the 25 HP 10,000 Mile Car. | 12th Jan 1934 | Box 5a \ 4 04-page002 | |
| Material, production, and testing plans for the P.2, 20/25 HP 'S' and 'D.2' series, including the Phantom II test car. | 12th Dec 1933 | Box 5a \ 4 04-page003 | |
| Specifications for the next 10,000 miles test car, a 25-HP Hooper Special Touring Saloon. | 13th Jan 1934 | Box 5a \ 4 04-page004 | |
| Page listing the Fisher Ventilating Scheme and Special Front Wings. | 13th Jan 1934 | Box 5a \ 4 04-page005 | |
| Confirming that the 20/25 HP 10,000-mile test car will be entirely new. | 18th Jan 1934 | Box 5a \ 4 04-page006 | |
| The fitment of an external clutch adjustment to a new 25 HP car for France. | 22th Jan 1934 | Box 5a \ 4 04-page007 | |
| The final batch of blueprints for the 20/25 HP Chassis 10,000 miles test. | 22th Jan 1934 | Box 5a \ 4 04-page008 | |
| Changes to a 20/25 HP 10,000 Mile Car for the fitting of a stock Hooper special Touring Saloon Body. | 23th Jan 1934 | Box 5a \ 4 04-page009 | |
| Improvements for engine smoothness and silence on the 20/25 HP test car, referencing specific component upgrades. | 2nd Jan 1934 | Box 5a \ 4 04-page010 | |
| Proposed modifications to improve smoothness and reduce noise on the 20/25 HP test car. | 26th Jan 1934 | Box 5a \ 4 04-page011 | |
| Modifications for a silent fan, balance weights, and a new carburetter. | 26th Jan 1934 | Box 5a \ 4 04-page012 | |
| Modifications to a 20-HP clutch for a 10,000 miles car, including reduced pedal pressure. | 26th Jan 1934 | Box 5a \ 4 04-page013 | |
| Improvements related to engine noise, exhaust boom, and smoothness on a 20/25 HP test car. | 20th Jan 1934 | Box 5a \ 4 04-page014 | |
| Gearbox mounting and the smoothness of an 8-cylinder engine. | 1st Jan 1924 | Box 5a \ 4 04-page015 | |
| Attaching particulars of the steering for the 25 HP, 10,000 Miles Test Car. | 2nd Feb 1934 | Box 5a \ 4 04-page016 | |
| Internal memorandum regarding specifications for the 25-HP 10,000 miles test car. | 6th Feb 1934 | Box 5a \ 4 04-page017 | |
| Outlining proposed brake improvements for the 20/25 HP cars due to a number of complaints. | 6th Feb 1934 | Box 5a \ 4 04-page018 | |
| Proposing to fit a common road wheel tool box to the 40/50 and 25-HP cars, and D.W.S. jacks to the 25-HP. | 9th Feb 1934 | Box 5a \ 4 04-page019 | |
| Requesting a list of new features for the 10,000 Miles 40/50 and 20/25 models. | 14th Feb 1934 | Box 5a \ 4 04-page020 | |
| The build status and outstanding details for the 20/25HP Chassis 21-G-IV. | 21th Feb 1934 | Box 5a \ 4 04-page021 | |
| Trial parts and the implementation of a semi-vacuum clutch control. | 22th Feb 1934 | Box 5a \ 4 04-page022 | |
| Requesting the date a car body will be ready for fitting to a specific chassis. | 23th Feb 1934 | Box 5a \ 4 04-page023 | |
| List of 16 engine and clutch modifications for the 20/25 HP Chassis, series 21-G-IV. | 7th Mar 1934 | Box 5a \ 4 04-page024 | |
| Requesting an update on the commencement of a 10,000-mile test, referencing a revised specification. | 7th Mar 1934 | Box 5a \ 4 04-page025 | |
| Numbered list of modifications and specifications for a vehicle chassis. | 7th Mar 1934 | Box 5a \ 4 04-page026 | |
| List of continued chassis modifications for the exhaust system, silencer, and dynamo. | 13th Mar 1934 | Box 5a \ 4 04-page027 | |
| The 20/25 HP 10,000 Miles Test Car, detailing specifications for the 'E2' series and production considerations for the 'F' series. | 13th Mar 1934 | Box 5a \ 4 04-page028 | |
| Specifications and purpose of a 10,000-mile test for the 20/25 HP model. | 16th Mar 1934 | Box 5a \ 4 04-page029 | |
| Fitting of a luggage grid to a Special Touring Saloon chassis with Messrs. Hooper. | 19th Mar 1934 | Box 5a \ 4 04-page030 | |
| Request to prepare car 21-G-IV for a 10,000-mile test by fitting a non-thumping device and standardizing the brakes. | 23th Mar 1934 | Box 5a \ 4 04-page031 | |
| Supply chain difficulties and the urgent need to order materials for the 20/25 HP 10,000 miles test chassis. | 12th Apr 1934 | Box 5a \ 4 04-page032 | |
| Material sanction for a 20/25 HP model pending decisions on modifications. | 13th Apr 1934 | Box 5a \ 4 04-page033 | |
| Request for a detail drawing of a modified outer pressure plate to make a servo compatible with a ball bearing type bridge for a test. | 13th Apr 1934 | Box 5a \ 4 04-page034 | |
| Requesting the modification of the Petrol Tank Filler for chassis 21-G-IV. | 14th Apr 1934 | Box 5a \ 4 04-page035 | |
| Querying the readiness of a 20/25 HP 10,000 miles test car and proposing standardisation for a future batch of materials. | 1st Apr 1934 | Box 5a \ 4 04-page036 | |
| Progress and issues of the 10,000-mile test for the 20/25 HP test car 21-G.4. | 14th Apr 1934 | Box 5a \ 4 04-page037 | |
| The performance and issues found during a 500-mile road test of car 21-G-IV. | 4th Apr 1934 | Box 5a \ 4 04-page038 | |
| Request to manufacture a front number plate for chassis RC.1864. | 23th Mar 1934 | Box 5a \ 4 04-page039 | |
| Request to replace normal rating front road springs with low rating springs of 750 lbs for a test. | 19th Apr 1934 | Box 5a \ 4 04-page040 | |
| The lining and setting of a 21-G.IV clutch. | 25th Apr 1934 | Box 5a \ 4 04-page041 | |
| Request to fit a Bentley propeller shaft damper to a 21-G-IV model for a 10,000 miles test. | 27th Apr 1934 | Box 5a \ 4 04-page042 | |
| Query regarding the status of the 20/25 HP test car 21-G-4 before its 10,000 miles test in France. | 30th Apr 1934 | Box 5a \ 4 04-page043 | |
| Vehicle fault report detailing issues with the clutch, engine, gearbox, and other components. | 1st May 1934 | Box 5a \ 4 04-page044 | |
| Test report page detailing adjustments and issues with brakes, dampers, and bodywork. | 2nd May 1934 | Box 5a \ 4 04-page045 | |
| The standardisation of an eccentrically mounted dynamo drive pinion for 20/24 and 40/50 HP chassis. | 2nd May 1934 | Box 5a \ 4 04-page046 | |
| Outlining engine modifications for a car undergoing conversion to a Terraplane engine mounting. | 7th May 1934 | Box 5a \ 4 04-page047 | |
| Test report on experimental car, chassis number 21 G.IV, detailing performance and issues. | 8th May 1934 | Box 5a \ 4 04-page048 | |
| Request to replace the 'hopeless' steering assembly on car 21-G-IV. | 23th May 1934 | Box 5a \ 4 04-page049 | |
| List of ten reported faults or points for vehicle 21-G-IV. | 23th May 1934 | Box 5a \ 4 04-page050 | |
| Request to replace a new silencer with a standard one on car 21-G-IV. | 28th May 1934 | Box 5a \ 4 04-page051 | |
| Summarizing the status and required work for three 10,000-mile test cars: the Phantom, the 20/25, and a Bentley. | 9th Jun 1934 | Box 5a \ 4 04-page052 | |
| Parts and modifications required for the '10,000 Miles Cars'. | 8th Jun 1934 | Box 5a \ 4 04-page053 | |
| List of technical points and a query concerning a Bentley vehicle. | 8th Jun 1934 | Box 5a \ 4 04-page054 | |
| The stoppage of a 10,000-mile test with engine 21.0.IV due to further experimental tests and modifications. | 15th Jun 1934 | Box 5a \ 4 04-page055 | |
| Stopping the 10,000-mile test on 21.G.IV for other experimental tests and modifications. | 15th Jun 1934 | Box 5a \ 4 04-page056 | |
| Requesting feedback on a pick-up rattle, exhaust tinniness, and a new clutch fitted to a car. | 16th Jun 1934 | Box 5a \ 4 04-page057 | |
| Request for a road test opinion on a vehicle with new pistons and clutch, with handwritten feedback notes. | 16th Jun 1934 | Box 5a \ 4 04-page058 | |
| Chasing a completion date for rubber engine mounting to commence a 10,000-mile test. | 18th Jun 1934 | Box 5a \ 4 04-page059 | |
| Modifications for car 21-G-IV, including gearbox rattle, servo replacement, and a final exhaust system specification. | 20th Jun 1934 | Box 5a \ 4 04-page060 | |
| Status of rubber engine mounting drawings for the 20/25 10,000 miles test. | 21th Jun 1934 | Box 5a \ 4 04-page061 | |
| Request for modifications to valves and fittings on Chassis 21-G-IV before a 10,000-mile test. | 2nd Jul 1934 | Box 5a \ 4 04-page062 | |
| List of required attention points and modifications for car 21-G-IV. | 5th Jul 1934 | Box 5a \ 4 04-page063 | |
| To H.H.C. about a wearing link between the pedals and engine on car 21-G-IV, urging the expedited manufacture of a fix. | 17th Jul 1934 | Box 5a \ 4 04-page064 | |
| Arranging for car 21-G.IV to be examined and then taken to Folkestone for a ferry. | 20th Jul 1934 | Box 5a \ 4 04-page065 | |
| List of jobs to be carried out on a car in the fitting shop. | 20th Jul 1934 | Box 5a \ 4 04-page066 | |
| A 10,000-mile journey in France. | 1st Jul 1934 | Box 5a \ 4 04-page067 | |
| Letter concerning the dispatch of a car and drivers to France. | 23th Jul 1934 | Box 5a \ 4 04-page068 | |
| Hotel letterhead detailing issues found with a car. | 23th Jul 1934 | Box 5a \ 4 04-page069 | |
| Car's performance, detailing issues with the clutch, steering and an oil leak. | 25th Jul 1934 | Box 5a \ 4 04-page070 | |
| Requesting information on the springs fitted to chassis 21-G-4 and noting the steering was unduly heavy. | 25th Jul 1934 | Box 5a \ 4 04-page071 | |
| Test drive report providing feedback on a car's performance, specifically the suspension and steering. | 24th Jul 1934 | Box 5a \ 4 04-page072 | |
| List of new features and their status for a 20/25 HP chassis undergoing a 10,000-mile test. | 27th Jul 1934 | Box 5a \ 4 04-page073 | |
| List of items related to engine and chassis components with handwritten annotations. | 27th Jul 1934 | Box 5a \ 4 04-page074 | |
| Letter to G.W. Hancock discussing issues with a clutch, timing gear rattles, experimental valve springs, and a noisy radiator fan. | 28th Jul 1934 | Box 5a \ 4 04-page075 | |
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