| Description | Date | Identifier | |
| Analysis of a Delco-Remy dual contact breaker distributor assembly. | 20th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan136 | |
| Description of the contact breaker, auto-advance mechanism, and distributor assembly. | 20th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan137 | |
| Examination of a distributor's contact points and head after a bench test. | 20th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan138 | |
| Distributor performance with a Delco-Remy coil and their method of riveting tungsten points. | 22th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan139 | |
| Tests conducted on thermostats for 40/50 models, comparing different fillings and their effect on running temperatures. | 22th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan140 | |
| Continuation of a report on shutter bearing loads, thrust, and pull during travel. | 22th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan141 | |
| Chart and graph detailing the operating characteristics of different thermostat-operated shutters. | 22th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan142 | |
| Tests conducted on the Phantom II carburetter silencer to address excessive noise. | 22th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan143 | |
| Alterations to a carburetter silencer to improve silence and regain power, including performance test results. | 22th Oct 1924 | West Wittering \ U \ August1930-November1930 Scan144 | |
| Table comparing lap speeds in M.P.H. for various carburettor and air silencer test configurations. | 26th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan145 | |
| Air silencer and carburettor performance, detailing maximum speed and acceleration tests on car 19-EX. | 22th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan146 | |
| Test results and a proposal to adopt an air silenced carburettor as standard for Phantom II cars. | 22th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan147 | |
| Page detailing the function of baffles in preventing dust from entering the carburetter. | 22th Nov 1932 | West Wittering \ U \ August1930-November1930 Scan148 | |
| Graph comparing engine Brake Horsepower (BHP) against RPM for different carburetter configurations. | 22th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan149 | |
| Blank document page with a purple ink stamp from the Print Room. | 22th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan150 | |
| Investigation into customer complaints regarding hydraulic shock absorber maintenance, specifically knocking and slack links. | 25th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan151 | |
| Causes and solutions for knocking sounds, focusing on pin wear, connecting tubes, and choked air vents. | 25th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan152 | |
| Continued report on damper issues, focusing on oil leaks and instances of maltreatment by chauffeurs. | 25th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan153 | |
| Summary of customer complaints regarding damper leaks and knocking, with proposed design changes. | 25th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan154 | |
| Continued memo discussing the investigation of issues with shock damper arms and 'mysterious knockers'. | 25th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan155 | |
| Tests and improvements on various car components. | 27th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan156 | |
| Continued memo discussing making tests on the standard clutch. | 27th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan157 | |
| Testing and standardisation of an improved moulded Dagenite vent for the Standard Phantom II battery. | 30th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan158 | |
| Test on flywheel vibrations and deflection for a 25 HP engine. | 31th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan159 | |
| Test report on flywheel deflection under various loads for a 20 HP engine. | 24th Oct 1930 | West Wittering \ U \ August1930-November1930 Scan160 | |
| The inspection and testing of a 48 coil high output dynamo from chassis 23-EX. | 3rd Nov 1930 | West Wittering \ U \ August1930-November1930 Scan161 | |
| Potential purchase of a Maybach car to inform the development of a twelve-cylinder engine. | 3rd Nov 1930 | West Wittering \ U \ August1930-November1930 Scan162 | |
| Potential solutions for vibrations in the 25 HP engine, including crankshaft counter-weights and a single-piece crankcase/block. | 5th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan163 | |
| Experiments conducted to investigate 25 HP engine vibrations. | 5th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan164 | |
| Analysis of engine and flywheel vibrations through a series of component tests on crankshafts and flywheels. | 5th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan165 | |
| The disturbing factor of 'long couples' in a six-cylinder crankshaft. | 5th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan166 | |
| Results of radiator tube tests conducted at Brooklands. | 6th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan167 | |
| Use of wind tunnels for obtaining test results and continuing investigations on turbulence. | 6th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan168 | |
| Flywheel vibration test data for a 25 HP engine, detailing deflection measurements under increasing loads. | 6th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan169 | |
| Data table of deflection measurements in inches for No. 6 crank at Top Dead Centre under varying loads. | 6th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan170 | |
| Blueprint showing a dimensioned lever arm attached to a No. 6 bearing assembly. | 7th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan171 | |
| The Alfa Romeo and Aston-Martin vehicles at the 1930 Motor Show. | 6th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan172 | |
| Notes on engine balance, dual ignition systems, and different types of petrol pumps. | 6th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan173 | |
| Cutaway diagram illustrating the components of the S.U. Co.'s Kent fuel pump. | 1st Mar 1932 | West Wittering \ U \ August1930-November1930 Scan174 | |
| Descriptive document with a diagram of the S.U. Hydraulic Fuel Pump and its operation. | 1st Mar 1932 | West Wittering \ U \ August1930-November1930 Scan175 | |
| Investigation into a 'boom' noise on Phantom II models at 60 M.P.H. | 10th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan176 | |
| Test report detailing efforts to resolve a 'boom' or vibration issue by modifying engine mountings. | 1st Nov 1936 | West Wittering \ U \ August1930-November1930 Scan177 | |
| Investigating engine 'boom' noise by modifying the exhaust manifold and concluding vibration is the root cause. | 10th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan178 | |
| Clearance for the Phantom II scuttle isolation. | 11th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan179 | |
| Cover note for a report detailing difficulties experienced while testing the Salerni Coupling, deeming it impractical. | 11th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan180 | |
| Review of the operation of the Salerni coupling device on RAC.7. | 11th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan181 | |
| The operation of a clutch and gearbox system, including gear changes and starting procedures. | 11th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan182 | |
| Gear engagement difficulties related to the Salerni coupling and cone brake. | 11th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan183 | |
| Blueprint diagram of a Salerni coupling in its free-wheeling position. | 11th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan184 | |
| Largely blank document page with a purple ink date stamp in the bottom right corner. | 11th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan185 | |
| The standardisation and endurance testing of Watford Type LW6A magnetos with tungsten points. | 2nd Nov 1930 | West Wittering \ U \ August1930-November1930 Scan186 | |
| The electrical performance testing of magnetos, comparing tungsten and platinum points. | 2nd Nov 1930 | West Wittering \ U \ August1930-November1930 Scan187 | |
| Proposed experiments on the Salerni coupling and Maybach clutch for project EAC.7. | 18th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan188 | |
| Tests on the Phantom II suspension system and its rebound characteristics. | 8th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan189 | |
| Preliminary tests on restraining the rear axle movement for the Phantom II suspension. | 17th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan190 | |
| Tests of different sling lengths and their effect on buffer clearance and axle movement. | 17th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan191 | |
| Tests and opinions on road springs for the Phantom II Flexible model. | 18th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan192 | |
| Customer issues with shock absorbers in the U.S.A. and a comparison with Delco alternatives. | 18th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan193 | |
| Feedback and test results for car 25-EX in the U.S.A. after 1900 miles. | 18th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan194 | |
| Comparative analysis of steering, springing, and acceleration performance, with proposed improvements and criticisms. | 8th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan195 | |
| Amount of rebound restraint for the Phantom II suspension. | 8th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan196 | |
| On preliminary tests for the Phantom II suspension, specifically concerning rear axle movement on rebound. | 17th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan197 | |
| Road tests investigating different sling lengths and their effect on buffer clearance and axle movement. | 17th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan198 | |
| The collection and renovation of experimental cars 27-EX and 18-EX. | 19th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan199 | |
| Cause and cure for spitting in the silencer, particularly on Phantom 1 cars. | 20th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan200 | |
| The effects of a low speed choke tube on engine spitting and carburation. | 30th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan201 | |
| Further tests investigating an engine spitting issue on car 22-EX. | 20th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan202 | |
| Tests conducted to eliminate engine vibrations in 20/25 HP cars. | 21th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan203 | |
| Proposal to standardise Cotton 'A' fabrics for torque reaction dampers on 20/25 HP cars. | 21th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan204 | |
| Drawing of a Torque Reaction Damper for a 20/25 HP model. | 21th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan205 | |
| Experiments conducted to investigate vibrations in a 25 HP unit. | 21th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan206 | |
| Experiments to analyze engine vibrations on a 25 HP model. | 21th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan207 | |
| Analysis of crankcase and bearing cap distortion, concluding on the importance of assembly rigidity. | 21th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan208 | |
| Graph showing crankcase and flywheel deflections for a 25 HP engine. | 21th Nov 1938 | West Wittering \ U \ August1930-November1930 Scan209 | |
| Blank or illegible document page with a purple ink stamp in the bottom right corner. | 21th Nov 1938 | West Wittering \ U \ August1930-November1930 Scan210 | |
| Alterations and testing of starting carburetters with fixed maximum restriction. | 21th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan211 | |
| New lubrication scheme for Phantom II front shock absorbers. | 30th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan212 | |
| Springing and suspension tests on a Phantom II car using a water spilling method to measure riding comfort. | 26th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan213 | |
| Effects of damping, weight distribution, and seating on vehicle pitching and ride comfort. | 26th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan214 | |
| Analysis of passenger discomfort and recommendations for improving riding comfort through changes in body design, weight distribution, and damping. | 26th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan215 | |
| Graph showing the effect of shock damping on rear seat riding comfort at different road speeds. | 26th Nov 1936 | West Wittering \ U \ August1930-November1930 Scan216 | |
| Graph from springing tests on a 20 Ex model, showing the effect of weight distribution on rear seat riding comfort. | 26th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan217 | |
| Tests concerning high-speed engine roughness for the 25 HP model, specifically involving the flywheel and bearings. | 28th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan218 | |
| Blueprint of a Tail Bearing for a 25 HP Flywheel. | 28th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan219 | |
| Almost illegible document with a purple 'PRINT ROOM' stamp. | 28th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan220 | |
| Note received from H.S. in the U.S.A. regarding feedback on clutch performance and brake squeaks on car 25-KT. | 22th Nov 1930 | West Wittering \ U \ August1930-November1930 Scan221 | |
| New recommendations for Bijur lubrication of front and rear axles. | 1st Jan 1930 | West Wittering \ U \ January1930-April1930 Scan001 | |
| Improvements to the axle lubrication system, including air-vessels, the one-shot chassis system and the Bijur pump. | 1st Jan 1930 | West Wittering \ U \ January1930-April1930 Scan002 | |
| Instruction book update on the lubrication of axles with an oil gun for 20 HP and Phantom II models. | 1st Jan 1930 | West Wittering \ U \ January1930-April1930 Scan003 | |
| Quotation and details for a Westinghouse Rectifier Set for car batteries. | 1st Jan 1930 | West Wittering \ U \ January1930-April1930 Scan004 | |
| Tests concerning the effect of two spare wheels on the steering, skidding, and riding comfort of a Phantom 11. | 2nd Jan 1930 | West Wittering \ U \ January1930-April1930 Scan005 | |
| Summary of the riding comfort effects of carrying two spare wheels at the rear of the vehicle. | 2nd Jan 1930 | West Wittering \ U \ January1930-April1930 Scan006 | |
| The performance and control of a dynamo-battery system, considering different switch configurations and control brush positions. | 1st Jan 1930 | West Wittering \ U \ January1930-April1930 Scan007 | |
| Output curves and specifications of a standard 20 HP dynamo. | 1st Jan 1930 | West Wittering \ U \ January1930-April1930 Scan008 | |
| Continued discussion on dynamo output control, exploring options like twin control brushes and bimetal thermostats. | 2nd Jan 1930 | West Wittering \ U \ January1930-April1930 Scan009 | |
| Different types of thermostats, their application, and the advantages of a dynamo-incorporated thermostatic output control. | 2nd Jan 1930 | West Wittering \ U \ January1930-April1930 Scan010 | |
| Graph showing various output curves for a 20 HP dynamo against RPM and chassis speed. | 2nd Jan 1930 | West Wittering \ U \ January1930-April1930 Scan011 | |
| Heavily faded document with a purple 'Print Room Derby' date stamp. | 2nd Jan 1930 | West Wittering \ U \ January1930-April1930 Scan012 | |
| The experimental use and production of intermediate output dynamos for testing. | 3rd Jan 1930 | West Wittering \ U \ January1930-April1930 Scan013 | |
| The results of a bumping test on drilled and grooved 20 HP road springs. | 6th Jan 1930 | West Wittering \ U \ January1930-April1930 Scan014 | |
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