| Description | Date | Identifier | |
| Heavily faded document with a purple ink Print Room date stamp. | 7th May 1928 | West Wittering \ S \ March1928-May1928 Scan172 | |
| Analysis and comparison of short circuit ampere-speed curves for various chassis magnetos. | 8th May 1928 | West Wittering \ S \ March1928-May1928 Scan173 | |
| Graph comparing the short-circuit ampere-speed curves of various magnetos. | 19th Apr 1928 | West Wittering \ S \ March1928-May1928 Scan174 | |
| Stamped document from the print room. | 8th May 1928 | West Wittering \ S \ March1928-May1928 Scan175 | |
| The investigation into stretching and collapsed exhaust valves on the Phantom model. | 10th May 1928 | West Wittering \ S \ March1928-May1928 Scan176 | |
| Technical review of a Chrysler Red Head 72, focusing on its weight, gear ratio, and engine performance. | 10th May 1928 | West Wittering \ S \ March1928-May1928 Scan177 | |
| Car performance review comparing engine characteristics and acceleration times against a Standard Phantom, a Chrysler, and a Stutz. | 10th May 1928 | West Wittering \ S \ March1928-May1928 Scan178 | |
| Technical review and impression of a Chrysler car's performance characteristics, including steering, suspension, and brakes. | 10th May 1928 | West Wittering \ S \ March1928-May1928 Scan179 | |
| Report page discussing chassis weights, suggesting a competitor vehicle purchase for testing, and noting its features. | 11th May 1922 | West Wittering \ S \ March1928-May1928 Scan180 | |
| Consistent valve clicking noise found in Phantom engines fitted with double valve springs. | 11th May 1922 | West Wittering \ S \ March1928-May1928 Scan181 | |
| Technical memo regarding the performance and characteristics of Phantom double valve springs. | 11th May 1928 | West Wittering \ S \ March1928-May1928 Scan182 | |
| Diagnosing a high-pitched clicking noise from the valve gear at 1250 r.p.m. | 1st May 1928 | West Wittering \ S \ March1928-May1928 Scan183 | |
| The 40/50 HP steering system, detailing modifications to the axle control lever and comparing spring deflection schemes. | 1st May 1928 | West Wittering \ S \ March1928-May1928 Scan184 | |
| Steering control improvements, wheel wobble issues with balloon tyres, and comparing different ball pin travel settings. | 18th May 1928 | West Wittering \ S \ March1928-May1928 Scan185 | |
| Unsuitability of smaller wheels for the 20 HP car and the commencement of an 'India 3' build. | 18th May 1928 | West Wittering \ S \ March1928-May1928 Scan186 | |
| Special details and latest production instructions for the 20 HP Car for India. | 18th May 1928 | West Wittering \ S \ March1928-May1928 Scan187 | |
| Explaining the delay in fitting vertical shutters to the 20 HP model. | 18th May 1928 | West Wittering \ S \ March1928-May1928 Scan188 | |
| Static tests conducted on an X-shaped cross member to improve frame rigidity and steering. | 19th May 1928 | West Wittering \ S \ March1928-May1928 Scan189 | |
| Test report detailing the results of cross member tests on a model frame. | 11th May 1928 | West Wittering \ S \ March1928-May1928 Scan190 | |
| Blueprint detailing the method and stages of testing a model frame's 4th (X) cross member. | 16th May 1928 | West Wittering \ S \ March1928-May1928 Scan191 | |
| Blank or heavily faded document with a purple stamp from the Print Room in Derby. | 19th May 1928 | West Wittering \ S \ March1928-May1928 Scan192 | |
| Investigation into the cause of unevenness and noise in the starter gear on car 14-EX. | 1st May 1928 | West Wittering \ S \ March1928-May1928 Scan193 | |
| Bending and shear tests on an 'X' shaped cross member. | 23th May 1928 | West Wittering \ S \ March1928-May1928 Scan194 | |
| Bending test results for a model frame with different member configurations. | 23th May 1928 | West Wittering \ S \ March1928-May1928 Scan195 | |
| Hand-drawn diagram illustrating a load-bearing structure with various support elements. | 23th May 1928 | West Wittering \ S \ March1928-May1928 Scan196 | |
| Results of a shearing test on a model frame, comparing deflection with and without extra tubular members. | 25th May 1928 | West Wittering \ S \ March1928-May1928 Scan197 | |
| Criticisms of steering systems and comparisons with competitor designs. | 25th May 1928 | West Wittering \ S \ March1928-May1928 Scan198 | |
| Steering difficulties and comparing the 20 HP and 40/50 models against a Sunbeam. | 25th May 1928 | West Wittering \ S \ March1928-May1928 Scan199 | |
| Tests conducted on the petrol suction pump for the 'SS' engine. | 3rd Sep 1928 | West Wittering \ S \ September1928-October1928 Scan001 | |
| Analysis of a piston pump's operation, detailing the suction stroke, port registration, pressure dynamics, and its effect on the autovac system. | 3rd Sep 1928 | West Wittering \ S \ September1928-October1928 Scan002 | |
| Report page discussing pump efficiency, suction readings, and lubrication improvements for various components. | 4th Sep 1926 | West Wittering \ S \ September1928-October1928 Scan003 | |
| Schematic diagram illustrating the operation of an S.S. vacuum pump at different piston strokes. | 4th Sep 1926 | West Wittering \ S \ September1928-October1928 Scan004 | |
| Performance graph for a vacuum pump on a Super Sports engine, plotting petrol delivery and pump suction against engine RPM. | 1st Sep 1928 | West Wittering \ S \ September1928-October1928 Scan005 | |
| Blank document page with a red 'Print Room' stamp. | 1st Sep 1928 | West Wittering \ S \ September1928-October1928 Scan006 | |
| Progress report on modifications and outstanding issues with a 20 HP car, model 12-G-4. | 4th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan007 | |
| Retaining a car, reference (12-g-4), to investigate the reason for its harsh riding. | 4th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan008 | |
| Connection of annular air spaces in F.S. Carburetters and upcoming tests on slipstream effects. | 4th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan009 | |
| Test report on the Super Sports Engine No. 55-3, detailing running conditions, failures, and subsequent modifications. | 1st Sep 1928 | West Wittering \ S \ September1928-October1928 Scan010 | |
| Engine testing, detailing issues with vibration, the vacuum pump, and oiling system, and listing optimal valve timings. | 5th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan011 | |
| Blueprint detailing the oil grooves in a dynamo drive bush for a Super Sports engine. | 5th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan012 | |
| Blueprint detailing the inverted plan of oil drain grooves in a governor housing for a Super Sports Engine. | 5th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan013 | |
| Sketch showing the arrangement of an oil scoop for a super-sports engine. | 5th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan014 | |
| Blueprint for a modified rocker shaft for a super-sports engine. | 5th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan015 | |
| Power curve graph for a Super Sports engine plotting brake horse power, oil pressures and induction pipe depression against RPM. | 4th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan016 | |
| Suspension tests for the 40/50 HP Phantom to address low-speed riding complaints. | 6th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan017 | |
| The effect of shock absorbers on vehicle ride quality under various test conditions. | 6th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan018 | |
| Test report detailing the effects of modifying tyre pressures and front springs on ride comfort. | 6th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan019 | |
| The performance of front and rear springs, including internal friction and rating tests. | 6th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan020 | |
| Vehicle suspension tests focusing on spring ratings, buffer clearance, and ride comfort. | 6th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan021 | |
| Summary of conclusions and proposed experiments to improve Phantom complaints related to suspension and high-speed wobbles. | 27th Aug 1928 | West Wittering \ S \ September1928-October1928 Scan022 | |
| Phantom springing complaints, focusing on leaf friction and its effect on ride comfort. | 27th Aug 1928 | West Wittering \ S \ September1928-October1928 Scan023 | |
| Detrimental effects of leaf spring friction on comfort and potential solutions such as plating. | 27th Aug 1928 | West Wittering \ S \ September1928-October1928 Scan024 | |
| Review of suspension complaints for the 40/50 model, focusing on 'hard riding' and adjustments to buffer clearance. | 7th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan025 | |
| Customer complaints of seasickness and hard riding, and the effects of spring stiffness and damping. | 7th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan026 | |
| Graph showing the results of two rating tests on a non-cadmium plated rear road spring. | 8th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan027 | |
| Bar chart comparing test results for different methods of improving the Phantom's low-speed ride quality. | 10th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan028 | |
| Cover page with a Print Room reception stamp. | 10th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan029 | |
| Suspension tests for the 40/50 HP Phantom to improve low-speed riding comfort. | 6th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan030 | |
| Results of tests on the effect of shock absorbers on vehicle ride quality. | 6th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan031 | |
| Tests on tyre pressures and front springs to improve ride comfort and handling. | 6th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan032 | |
| Tests on internal spring friction and rear spring ratings. | 6th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan033 | |
| Report page detailing vehicle suspension testing, focusing on spring ratings, buffer clearance, and ride quality analysis. | 6th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan034 | |
| Improving Phantom complaints by adjusting suspension, steering, and tyre characteristics. | 27th Aug 1928 | West Wittering \ S \ September1928-October1928 Scan035 | |
| Complaints about Phantom model springing, focusing on the effects of leaf spring friction on ride comfort. | 27th Aug 1928 | West Wittering \ S \ September1928-October1928 Scan036 | |
| Reducing leaf spring friction through polishing and plating to prevent rust and wear. | 7th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan037 | |
| Review of springing complaints on the 40/50 Hp model and methods for improving ride comfort. | 7th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan038 | |
| Customer complaints of sea-sickness and hard riding through spring and damping adjustments. | 7th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan039 | |
| Bar chart comparing tests to determine the best method of improving the Phantom's low-speed ride quality. | 17th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan040 | |
| Blank, folded document with a purple date stamp from Derby. | 17th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan041 | |
| Tests carried out on road springs to determine internal friction under various conditions. | 1st Sep 1928 | West Wittering \ S \ September1928-October1928 Scan042 | |
| Continued document discussing the performance and rating of springs after a period of service. | 1st Sep 1928 | West Wittering \ S \ September1928-October1928 Scan043 | |
| Graph showing deflection and hysteresis data for a standard rear road spring. | 8th Sep 1927 | West Wittering \ S \ September1928-October1928 Scan044 | |
| Blank page with a purple ink stamp from the Print Room, Derby. | 8th Sep 1927 | West Wittering \ S \ September1928-October1928 Scan045 | |
| Three graphs showing results from rear road spring tests after cadmium plating, without clip and spring pads. | 31th Aug 1928 | West Wittering \ S \ September1928-October1928 Scan046 | |
| Series of three graphs showing results of rear road spring tests with cadmium plated pads and clips fitted. | 31th Aug 1928 | West Wittering \ S \ September1928-October1928 Scan047 | |
| Graph showing results from three rear road spring tests measuring deflection against applied load. | 31th Aug 1928 | West Wittering \ S \ September1928-October1928 Scan048 | |
| Blueprint graph showing the results of two rear road spring rating tests. | 8th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan049 | |
| Series of tests to determine the internal friction of road springs. | 1st Sep 1928 | West Wittering \ S \ September1928-October1928 Scan050 | |
| Continued discussion on the behavior and rating of car springs after a period of service. | 1st Sep 1928 | West Wittering \ S \ September1928-October1928 Scan051 | |
| Performance graphs for a standard rear road spring showing tip deflection and hysteresis. | 1st Sep 1928 | West Wittering \ S \ September1928-October1928 Scan052 | |
| Three graphs showing rear road spring tests after cadmium plating, without clip and spring pads. | 8th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan053 | |
| Blank page with a Print Room stamp. | 8th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan054 | |
| Series of three graphs showing the results of rear road spring tests with cadmium plated spring pads and clips fitted. | 31th Aug 1928 | West Wittering \ S \ September1928-October1928 Scan055 | |
| Chart with three graphs showing the results of rear road spring tests after 5,000 miles of use. | 31th Aug 1928 | West Wittering \ S \ September1928-October1928 Scan056 | |
| Modifications to the petrol vacuum pump and camshaft for the 'SS' engine. | 8th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan057 | |
| Duration timing, camshaft production, and oil flow/consumption tests on the Phantom. | 1st Sep 1928 | West Wittering \ S \ September1928-October1928 Scan058 | |
| Blueprint detailing modifications to a vacuum pump for a super sports engine. | 1st Sep 1928 | West Wittering \ S \ September1928-October1928 Scan059 | |
| Blank page with a reception stamp from the Derby office. | 7th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan060 | |
| Graph showing the delivery curve of a vacuum pump for a Super Sports engine after modification. | 7th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan061 | |
| Blank page stamped by the Print Room. | 7th Sep 1939 | West Wittering \ S \ September1928-October1928 Scan062 | |
| Test report on a 14.7 Cottin Desgouttes demonstration car, detailing its specifications and performance. | 8th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan063 | |
| Technical analysis and comparison of car suspension systems, including those of Cottin, Lancia, and Ansaldo. | 8th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan064 | |
| Critical assessment of a Cottin car's performance, body, and second-hand value after 10,000 miles. | 11th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan065 | |
| Short memo confirming the return of a car to West Wittering. | 11th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan066 | |
| Modifications and performance evaluation of a car. | 13th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan067 | |
| Oiling system tests and weight specifications for the 'SS' engine unit. | 9th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan068 | |
| Graph of oil flows versus RPM for a Super-Sports engine, showing delivery from the pump and flow to various components. | 10th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan069 | |
| Blank document page with a purple company date stamp. | 13th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan070 | |
| Graph of oil pressures versus engine RPM for the Super Sports Engine. | 10th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan071 | |
| Fusing currents for main and distributing fuses and the required current tolerance for ammeters. | 9th Sep 1928 | West Wittering \ S \ September1928-October1928 Scan072 | |
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