| Description | Date | Identifier | |
| Explanation of measurements shown on an attached print, detailing the results of various tests represented by curves. | 14th May 1930 | West Wittering \ U \ January1930-April1930 Scan115 | |
| Blueprint showing the results of bumper tests measuring the relative amplitude of movement of the radiator and engine under various conditions. | 14th May 1930 | West Wittering \ U \ January1930-April1930 Scan116 | |
| Testing a compression ignition unit with a modified piston achieving a high compression ratio. | 15th Mar 1930 | West Wittering \ U \ January1930-April1930 Scan117 | |
| The testing of a compression ignition unit, detailing a bearing failure and subsequent modifications. | 24th Mar 1930 | West Wittering \ U \ January1930-April1930 Scan118 | |
| Engine tests detailing fuel injection, a comparison of nozzles, oil leaks, and piston slap issues. | 24th Mar 1932 | West Wittering \ U \ January1930-April1930 Scan119 | |
| Performance comparison table for various fuel injector nozzles at 1500 RPM. | 24th May 1930 | West Wittering \ U \ January1930-April1930 Scan120 | |
| The upcoming testing of 'Farnboro'' type nozzles against 'Bosch' nozzles. | 24th May 1930 | West Wittering \ U \ January1930-April1930 Scan121 | |
| Performance graph showing pressure versus piston displacement for a compression ignition unit. | 25th Mar 1930 | West Wittering \ U \ January1930-April1930 Scan122 | |
| Graph showing the injection duration curve for a 'Bosch' fuel pump. | 24th Mar 1930 | West Wittering \ U \ January1930-April1930 Scan123 | |
| Mostly blank document page with a purple ink stamp from the Print Room in Derby. | 25th Mar 1930 | West Wittering \ U \ January1930-April1930 Scan124 | |
| Blueprint of a compression ignition engine indicator diagram showing pressure vs. crank angle. | 26th Mar 1930 | West Wittering \ U \ January1930-April1930 Scan125 | |
| Test report on crankshaft journal and big-end bearings made from zinc alloy on a 'Japan' engine. | 26th Mar 1930 | West Wittering \ U \ January1930-April1930 Scan126 | |
| Engine bearing failure due to zinc-alloy growth and a recommendation for increased clearance. | 26th Mar 1931 | West Wittering \ U \ January1930-April1930 Scan127 | |
| The road testing of a Phantom II Left-Hand Chassis, 24-EX. | 1st Apr 1930 | West Wittering \ U \ January1930-April1930 Scan128 | |
| Test report on the performance and filtering effectiveness of an 'Auto-Klean' oil strainer. | 5th Apr 1930 | West Wittering \ U \ January1930-April1930 Scan129 | |
| Strainer test, noting its clogging tendency and suggesting an automatic filter vane mechanism. | 5th Apr 1930 | West Wittering \ U \ January1930-April1930 Scan130 | |
| Components and recommended modifications for the 20 HP exhaust system. | 1st Apr 1930 | West Wittering \ U \ January1930-April1930 Scan131 | |
| Tests and findings related to the issue of 'Radiator Jellying'. | 29th Apr 1930 | West Wittering \ U \ January1930-April1930 Scan132 | |
| Modifications and various engine mounting tests to reduce oscillation and 'jellying' on existing cars. | 28th Apr 1930 | West Wittering \ U \ January1930-April1930 Scan133 | |
| Flexible engine mountings and body mountings, analyzing vibrations and frame 'jellyings'. | 18th Apr 1930 | West Wittering \ U \ January1930-April1930 Scan134 | |
| Testing subframe mounting, shock damper mounting, and front spring stiffness. | 29th Apr 1930 | West Wittering \ U \ January1930-April1930 Scan135 | |
| Vehicle component issues including dampers, axles, and a summary on engine mounting. | 19th Apr 1930 | West Wittering \ U \ January1930-April1930 Scan136 | |
| Page discussing solutions for mascot jellying and reducing engine noise without compromising steering. | 2nd Jan 1929 | West Wittering \ U \ January1930-April1930 Scan137 | |
| Test log documenting various modifications and their effects on vehicle 'jellying' and handling. | 30th Apr 1930 | West Wittering \ U \ January1930-April1930 Scan138 | |
| Flight test report on the effect of inside air intakes on an 'F' engine's performance in a Fairey 'Fox' Battleship. | 29th Apr 1930 | West Wittering \ U \ January1930-April1930 Scan139 | |
| Flight test report on an 'F' engine's performance, detailing behaviour during side slipping, gliding, and throttle changes. | 29th Apr 1930 | West Wittering \ U \ January1930-April1930 Scan140 | |
| Issues with using Nitralloy steel for cylinder liners in Hispano cars. | 1st May 1930 | West Wittering \ U \ May1930-July1930 Scan001 | |
| The failure of Autovac petrol feed tanks due to leaking floats from faulty soldering. | 1st May 1930 | West Wittering \ U \ May1930-July1930 Scan002 | |
| Analysis of float failure, valve mechanisms, and suction pump discharge into the crankcase. | 1st May 1930 | West Wittering \ U \ May1930-July1930 Scan003 | |
| Autovac tests conducted on three different self-draining floats. | 30th Apr 1932 | West Wittering \ U \ May1930-July1930 Scan004 | |
| Series of tests on an Autovac float system to diagnose petrol suction issues under various conditions. | 30th Apr 1932 | West Wittering \ U \ May1930-July1930 Scan005 | |
| The failure of an autovac float due to petrol vapour condensation. | 7th May 1930 | West Wittering \ U \ May1930-July1930 Scan006 | |
| Power loss caused by an air silencer carburettor, comparing Phantom I and Phantom II performance. | 7th May 1930 | West Wittering \ U \ May1930-July1930 Scan007 | |
| On the preliminary test results for a modified air-silencer carburetter for Phantom II engines. | 7th May 1930 | West Wittering \ U \ May1930-July1930 Scan008 | |
| Analysis of power loss caused by air silencer components and proposed modifications to reduce it. | 1st May 1930 | West Wittering \ U \ May1930-July1930 Scan009 | |
| Performance graph of Brake Horse Power vs RPM for a Phantom II engine, comparing a standard carburettor with an air silencer carburettor. | 6th May 1930 | West Wittering \ U \ May1930-July1930 Scan010 | |
| Blank page with a 'Print Room' receiving stamp. | 7th May 1930 | West Wittering \ U \ May1930-July1930 Scan011 | |
| Graph analysing the power loss of an Air Silencer Carburettor by comparing Brake Horse Power against engine RPM under four different configurations. | 6th May 1930 | West Wittering \ U \ May1930-July1930 Scan012 | |
| Stamped document from the Print Room in Derby. | 7th May 1930 | West Wittering \ U \ May1930-July1930 Scan013 | |
| The investigation into rear axle failures, detailing conflicting test results with different oils. | 5th May 1930 | West Wittering \ U \ May1930-July1930 Scan014 | |
| Axle tube oil leak issues and subsequent modifications and testing. | 5th May 1930 | West Wittering \ U \ May1930-July1930 Scan015 | |
| Axle failures, noting they occur even with sufficient lubricant, and detailing efforts to reproduce the issue in tests. | 5th May 1930 | West Wittering \ U \ May1930-July1930 Scan016 | |
| Advantages and disadvantages of stiffer road springs for the Phantom II and 20 HP models. | 14th May 1930 | West Wittering \ U \ May1930-July1930 Scan017 | |
| Report page discussing customer complaints about low speed dithering and pitching in Phantom I and II models. | 14th May 1930 | West Wittering \ U \ May1930-July1930 Scan018 | |
| Issues with rear and front spring deflection, its impact on hitting buffers, steering, and a comparison to Lancia's spring setup. | 14th May 1930 | West Wittering \ U \ May1930-July1930 Scan019 | |
| Vehicle suspension, hydraulics, and shock absorbers, comparing different approaches and suggesting improvements. | 14th May 1930 | West Wittering \ U \ May1930-July1930 Scan020 | |
| Continuation page of a memo regarding a specific feature. | 14th Aug 1931 | West Wittering \ U \ May1930-July1930 Scan021 | |
| Fitting new lower rated front springs to chassis 62-AL for Mr. Clifford Turner. | 5th May 1930 | West Wittering \ U \ May1930-July1930 Scan022 | |
| Preliminary tests and modifications for the Phantom II starting carburetter. | 14th May 1930 | West Wittering \ U \ May1930-July1930 Scan023 | |
| Blueprint detailing a modified needle for a starting carburetter. | 14th May 1930 | West Wittering \ U \ May1930-July1930 Scan024 | |
| Blank document with a Print Room date stamp. | 14th May 1930 | West Wittering \ U \ May1930-July1930 Scan025 | |
| Performance of a dynamo-battery system and a reduced charge switching scheme. | 6th May 1930 | West Wittering \ U \ May1930-July1930 Scan026 | |
| Dynamo schemes, armatures, and output for various car models. | 6th May 1930 | West Wittering \ U \ May1930-July1930 Scan027 | |
| Modifying third brush control machines and dynamos to increase their output. | 6th May 1930 | West Wittering \ U \ May1930-July1930 Scan028 | |
| Experiments with armature and field winding modifications to alter output curves and reduce noise. | 6th May 1930 | West Wittering \ U \ May1930-July1930 Scan029 | |
| Continued discussion on dynamo output, battery charge state, and garage charging equipment. | 6th May 1930 | West Wittering \ U \ May1930-July1930 Scan030 | |
| Technical description of a metal rectifier, its properties, and applications in battery charging. | 6th May 1930 | West Wittering \ U \ May1930-July1930 Scan031 | |
| Alterations to a car, including reduced vibration and plans for a new 'Japan' unit. | 16th May 1930 | West Wittering \ U \ May1930-July1930 Scan032 | |
| List of modifications to engine unit Cos.C.3 and chassis 16-G4. | 16th Mar 1930 | West Wittering \ U \ May1930-July1930 Scan033 | |
| The build of a new 25 HP experimental car, focusing on engine design revisions. | 16th May 1930 | West Wittering \ U \ May1930-July1930 Scan034 | |
| Modifications and standardisation for various models, including the 20 HP, 25 HP and Phantom II. | 19th May 1930 | West Wittering \ U \ May1930-July1930 Scan035 | |
| Tests conducted on front shock absorbers regarding oil loss and filling issues. | 19th May 1930 | West Wittering \ U \ May1930-July1930 Scan036 | |
| Test results for oiling to ball ends, lever serrations on an 18-EX, and damper spring tests on a Phantom 11. | 19th May 1930 | West Wittering \ U \ May1930-July1930 Scan037 | |
| Possibility and initial testing of an electrical speedometer using an alternator and milliammeter. | 20th May 1930 | West Wittering \ U \ May1930-July1930 Scan038 | |
| Using synchronous motors, such as Warren motors and Synclocks, for accurate measurement. | 1st May 1930 | West Wittering \ U \ May1930-July1930 Scan039 | |
| The principle of a practical arrangement for a speedometer and mileometer. | 23th May 1930 | West Wittering \ U \ May1930-July1930 Scan040 | |
| Experiments comparing bakelite and metallic ignition wiring tubes for static induction and temperature effects. | 23th May 1930 | West Wittering \ U \ May1930-July1930 Scan041 | |
| Report comparing the effects of high temperatures on bakelite and vulcanite materials used for wiring tubes. | 23th May 1930 | West Wittering \ U \ May1930-July1930 Scan042 | |
| Customer complaints about the riding qualities of Phantom II and 25 HP models, focusing on suspension issues. | 23th May 1930 | West Wittering \ U \ May1930-July1930 Scan043 | |
| Shock absorber loading and spring deflection tests for comfort, referencing Phantom II and 20/25 HP models. | 23th May 1931 | West Wittering \ U \ May1930-July1930 Scan044 | |
| Phantom I complaints via drilled valves and comparing riding comfort issues with the 20 HP model. | 26th Feb 1930 | West Wittering \ U \ May1930-July1930 Scan045 | |
| List of complaints compiled by the repair department regarding cars bumping on buffers, with suggestions for resolution. | 26th Feb 1930 | West Wittering \ U \ May1930-July1930 Scan046 | |
| List of vehicle ride and handling issues with corresponding reference numbers, customer names, and proposed modifications. | 26th Feb 1930 | West Wittering \ U \ May1930-July1930 Scan047 | |
| List of vehicle cases detailing complaints and remedies related to springs and swaying. | 23th May 1930 | West Wittering \ U \ May1930-July1930 Scan048 | |
| Twin carburetter tests and camshaft comparisons on the 'Japan' engine. | 23th May 1930 | West Wittering \ U \ May1930-July1930 Scan049 | |
| Test report on engine induction system design, focusing on riser pipes, bore sizes, and choke performance. | 23th May 1930 | West Wittering \ U \ May1930-July1930 Scan050 | |
| Report comparing engine performance with different camshafts and port systems. | 23th May 1930 | West Wittering \ U \ May1930-July1930 Scan051 | |
| Summary of experimental results for the 'Japan' engine concerning twin carburetters, camshafts, and induction systems. | 23th May 1930 | West Wittering \ U \ May1930-July1930 Scan052 | |
| Table of actual valve timing measurements taken on an engine with .020 tappet clearance. | 23th May 1930 | West Wittering \ U \ May1930-July1930 Scan053 | |
| Blank document page with a Print Room stamp from Derby. | 23th May 1930 | West Wittering \ U \ May1930-July1930 Scan054 | |
| Performance graph comparing large and small bore induction manifolds on a 'Japan' engine with twin Zenith carburettors. | 21th May 1930 | West Wittering \ U \ May1930-July1930 Scan055 | |
| Graph comparing engine performance (BHP and BMEP) with different camshafts on the 'Japan' engine configuration. | 21th May 1930 | West Wittering \ U \ May1930-July1930 Scan056 | |
| Performance comparison graph of a Twin Zenith carburettor against a standard chassis carburettor with different camshafts. | 22th May 1930 | West Wittering \ U \ May1930-July1930 Scan057 | |
| Arrangement of a twin Zenith carburettor on a Japan Engine, detailing the induction pipe. | 22th May 1930 | West Wittering \ U \ May1930-July1930 Scan058 | |
| Stamped blank document or cover page. | 23th May 1930 | West Wittering \ U \ May1930-July1930 Scan059 | |
| Shock absorber loads and modifications for vehicle 16-G4. | 26th May 1930 | West Wittering \ U \ May1930-July1930 Scan060 | |
| Attempts to fix Phantom oil leaks from the rear of the crankcase. | 28th May 1930 | West Wittering \ U \ May1930-July1930 Scan061 | |
| Phantom II starter motor failures due to water ingress on experimental cars. | 29th May 1930 | West Wittering \ U \ May1930-July1930 Scan062 | |
| Protecting the Phantom II motor from the effects of water, with a comparison to the 20 HP model. | 29th May 1930 | West Wittering \ U \ May1930-July1930 Scan063 | |
| Inaccessibility of starter motor terminals on the Phantom II and 20/25 models, especially for the American market. | 29th May 1930 | West Wittering \ U \ May1930-July1930 Scan064 | |
| Improvements for the dynamo connections based on criticism and competitor examples. | 29th May 1930 | West Wittering \ U \ May1930-July1930 Scan065 | |
| Suggestion to redesign the Phantom II starter main and auxiliary switch unit to correct the contact time sequence. | 29th May 1930 | West Wittering \ U \ May1930-July1930 Scan066 | |
| Recommendation to remove carbon contacts from the Phantom II starter system push button switch. | 30th May 1930 | West Wittering \ U \ May1930-July1930 Scan067 | |
| The successful testing of a redesigned switch without carbon contacts, recommending a chassis standardisation test. | 30th May 1930 | West Wittering \ U \ May1930-July1930 Scan068 | |
| Outlining a proposed modification to the Phantom II petrol reserve system to address issues raised by the sales department. | 31th May 1930 | West Wittering \ U \ May1930-July1930 Scan069 | |
| Reporting the failure of a free-wheel device on car 12-G4 after a mileage test. | 31th May 1930 | West Wittering \ U \ May1930-July1930 Scan070 | |
| The performance of modified silent tread tyres from Dunlop Rubber Co., comparing skidding and grip to Triple Stud tyres. | 3rd Jun 1930 | West Wittering \ U \ May1930-July1930 Scan071 | |
| Modification to silent tread tyres involving cutting grooves, comparing its performance and appearance to Triple Stud tyres, and proposing its standardization. | 1st Jun 1930 | West Wittering \ U \ May1930-July1930 Scan072 | |
| Modifications to road wheel brake shoes to eliminate squeaking. | 4th Jun 1930 | West Wittering \ U \ May1930-July1930 Scan073 | |
| Outlining complaints about the difficulty of fixing the K.S. petrol gauge and requesting a new design. | 6th Jun 1930 | West Wittering \ U \ May1930-July1930 Scan074 | |
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