| Description | Date | Identifier | |
| Test report comparing the effects of different shock absorber configurations and calibrating water loss to riding comfort. | 23th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan038 | |
| Blueprint chart comparing vehicle ride quality results from four different road tests conducted at 23 M.P.H. | 23th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan039 | |
| Complaints about Phantom suspension springing, attributing them to stiffer rear springs on U.S. export models. | 23th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan040 | |
| Specification table for New Phantom models in the U.S.A., detailing chassis numbers, body weights, passenger capacities, and spring settings. | 23th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan041 | |
| Data table for New Phantom Chassis rear springs, categorized by series and weight. | 24th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan042 | |
| Comparing the suspension and ride comfort of the Phantom and Silver Ghost models. | 24th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan043 | |
| Preliminary test results for Phantom suspension comparing hydraulic and friction dampers. | 24th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan044 | |
| Comparing the suspension performance between the Phantom and Silver Ghost models. | 4th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan045 | |
| Suspension test results of a Lancia Lambda car compared to the 20 HP and Silver Ghost models. | 26th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan046 | |
| Design and internal friction of Lancia Lambda rear springs. | 26th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan047 | |
| Bar chart comparing shock absorber performance and the effect of tyre pressure on different cars. | 26th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan048 | |
| Using a cadmium electrode for testing accumulator element condition. | 26th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan049 | |
| Continued page discussing battery cell construction, plate weakness, and voltage readings using a cadmium electrode. | 26th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan050 | |
| Test report showing terminal and plate voltages for various battery cells under different conditions. | 14th Feb 1926 | West Wittering \ O \ 2April1926-June1926 Scan051 | |
| Explaining the use of a cadmium electrode to diagnose the electrical condition of battery cell plates. | 22th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan052 | |
| Table of readings taken on various battery cells showing their condition and voltage measurements. | 22th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan053 | |
| Letter from Paris discussing steering complaints, a rear axle failure, and a cracked spring leaf. | 22th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan054 | |
| Letter detailing a spring failure, the replacement of a gudgeon pin, and an issue with a new battery bracket. | 22th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan055 | |
| The failure of a battery suspension bracket and the proposed modifications. | 22th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan056 | |
| Letter detailing the completion of a car, a delay due to missing steering springs, and plans for travel and the next vehicle. | 27th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan057 | |
| Cover note for a report on Chassis 10-G-111 after 7526 miles during a 10,000-mile test in France. | 27th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan058 | |
| Chassis IO G.III engine condition after 7826 miles. | 23th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan059 | |
| Condition report on engine components including plugs, gears, case, water pump, and controls. | 23th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan060 | |
| Technical report on the condition and issues found with the exhaust, engine suspension, carburettor, fan, and magneto. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan061 | |
| The condition and issues found with the dynamo, oil pump, battery ignition, bonnet, and engine guards. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan062 | |
| Condition report on various vehicle components including the engine guards, radiator, steering, and front axle. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan063 | |
| Inspection report on the condition of brakes, suspension, clutch, and gearbox components. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan064 | |
| The condition and testing of various vehicle components including servo gears, axles, and suspension. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan065 | |
| The condition and performance of various vehicle components including the propeller shaft, electrical fittings, and exhaust system. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan066 | |
| Vehicle inspection report detailing faults and conditions of various components after a test run. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan067 | |
| Vehicle performance, detailing petrol and oil consumption, and the specifics of tyre wear and type. | 28th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan068 | |
| Tests comparing the relative merits of hydraulic and friction shock dampers for low-speed riding comfort. | 28th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan069 | |
| Tests using a Chronograph to determine spring deflection and free movement for ride quality. | 29th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan070 | |
| Advantages of the Lancia Lambda car and recommending its purchase for evaluation. | 29th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan071 | |
| List of observations on steering, braking, and front suspension performance, including a comparison with a Lancia car. | 29th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan072 | |
| The disadvantages of a steering scheme and notes on the suspension of a Lancia car. | 30th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan073 | |
| Ten important modifications made to a car, with a proposed completion date. | 30th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan074 | |
| Proposal to change the 20 HP car 8-G-111, listing twelve special features to be fitted to the replacement model. | 30th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan075 | |
| Performance impact of increased compression on a 20 HP engine and proposing further testing. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan076 | |
| Experiments with compression ratio and exhaust system on a 20 HP engine. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan077 | |
| Report page analyzing engine power output with different ratios, discussing frictional losses from pistons and the effects of detonation. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan078 | |
| Piston design with a deep concave head to improve combustion and reduce detonation. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan079 | |
| Tests on power loss caused by various components of the exhaust system. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan080 | |
| Experimental manifold and silencer tests to reduce back pressure. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan081 | |
| Graph of power output versus R.P.M. for a 20 HP engine, comparing various exhaust system configurations. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan082 | |
| Graph comparing the power output (B.HP) versus R.P.M. for a 20 HP engine at standard and increased compression ratios. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan083 | |
| Design drawing for a 20-HP experimental exhaust manifold. | 1st Mar 1926 | West Wittering \ O \ 2April1926-June1926 Scan084 | |
| The EAC dynamo of the Narrower Brush (N.B.) type, comparing its performance with the standard 20 HP dynamo. | 3rd May 1926 | West Wittering \ O \ 2April1926-June1926 Scan085 | |
| Experiments with narrower brushes in machines, detailing performance, heating, and testing results. | 13th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan086 | |
| Comparison of a standard dynamo machine with an experimental one, focusing on brush wear and output performance. | 13th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan087 | |
| Summary of performance comparisons for narrow brush machines, focusing on output, temperature, and brush angles. | 13th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan088 | |
| Diagram showing the dimensions of main and control dynamo brushes for various models. | 11th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan089 | |
| Rear axle failure on car 10-G-111 in France, discussing the switch to New Departure bearings. | 3rd May 1926 | West Wittering \ O \ 2April1926-June1926 Scan091 | |
| Engine condition report for chassis 10 G.III after a 10,027-mile test. | 4th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan092 | |
| Performance and issues found with various vehicle components after testing. | 4th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan093 | |
| The condition of various engine and chassis components following testing. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan094 | |
| Vehicle test report detailing the condition of various components after extensive mileage, noting issues with ignition points, dashboard chatter, and steering column failure. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan095 | |
| The condition and performance of steering, axle, brake, and suspension components following a test. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan096 | |
| Condition report on various vehicle components following a test, detailing issues like oil leaks, erratic performance, and parts failure. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan097 | |
| Test report on the condition of rear brakes, suspension, propeller shaft, and electrical components. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan098 | |
| Vehicle condition report outlining issues and observations on components like suspension, exhaust, and chassis. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan099 | |
| Condition of a vehicle's body and tyres post-test, including performance data. | 4th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan100 | |
| Front shock absorber lever failure on a 20 HP car and proposed strengthening measures. | 4th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan101 | |
| Pencil sketch of a mechanical linkage or lever with a bolt through one end. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan102 | |
| Investigation into the factors causing overoiling in Phantom engines, comparing them to the Silver Ghost. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan103 | |
| Report with graphs analyzing oil consumption versus oil flow in Silver Ghost and Phantom engines. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan104 | |
| Report comparing oil consumption and pressure between the Silver Ghost and Phantom models, attributing differences to bearing clearances. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan105 | |
| Report comparing oil flow in Silver Ghost and Phantom engines and methods for reducing it. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan106 | |
| Piston ring performance, specifically 'L' section rings, in relation to engine over-oiling and oil consumption. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan107 | |
| Page detailing the causes of smoking exhaust and a summary of findings on controlling engine oil consumption. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan108 | |
| Conclusion on the causes of high oil consumption in the Phantom model, relating it to bearings and piston rings. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan109 | |
| Graph showing oil flow through hand-fitted bearings against engine RPM. | 4th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan110 | |
| Comparison of the allowable movement between hydraulic shock dampers and Hartford shock absorbers, noting failures and associated risks. | 4th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan111 | |
| Continuation of a report on suspension and shock damper testing, discussing oil viscosity and component loads. | 4th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan112 | |
| Suspension tests conducted on a Phantom car using weaker front springs. | 4th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan113 | |
| Explaining an incorrect drill jig plate for hydraulic dampers, made for an EAC-8 chassis instead of the required 'V' or 'W' series. | 1st May 1926 | West Wittering \ O \ 2April1926-June1926 Scan114 | |
| Cracked steering column flange found during a 10,000-mile test on a 20 HP car in France. | 7th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan115 | |
| 'Maconite' insulated H.T. cables for chassis. | 10th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan116 | |
| The experimental use and manufacturing process of 'Maconite' insulated cables for vehicle wiring. | 10th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan117 | |
| The price increase and testing of H.T. cable for the 20 HP and 40/50 chassis. | 10th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan118 | |
| Test report on 'Maconite' H.T. Ignition Cable performance in various immersion and voltage breakdown tests. | 3rd Mar 1926 | West Wittering \ O \ 2April1926-June1926 Scan119 | |
| Cover sheet for a report on chassis 10-C-111 after completing a 10,000 miles test in France. | 10th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan120 | |
| The condition of engine components for chassis 10 G.III after a 10,027-mile test. | 4th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan121 | |
| The performance and issues with various components after a vehicle test, including plugs, engine, water pump and controls. | 4th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan122 | |
| Post-test condition report on various engine and ancillary components. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan123 | |
| Vehicle condition report detailing issues and observations on various components after mileage testing. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan124 | |
| Test report on the performance of steering, axle, brakes, springs, and shock dampers. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan125 | |
| Test report on the condition and failures of various vehicle components following a test. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan126 | |
| Post-test condition report on rear brakes, suspension, propeller shaft, and electrical fittings. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan127 | |
| Condition report detailing wear and modifications on various vehicle components including suspension, exhaust, and frame. | 15th Jan 1926 | West Wittering \ O \ 2April1926-June1926 Scan128 | |
| Vehicle test report detailing body condition, performance metrics, and tyre life. | 3rd May 1926 | West Wittering \ O \ 2April1926-June1926 Scan129 | |
| Summary of faults found during a 10,027 miles test on Chassis 10-G-111. | 3rd May 1926 | West Wittering \ O \ 2April1926-June1926 Scan130 | |
| Condition report for a N.S. Rear Spring, detailing the location and length of cracks found in the leaves. | 22th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan131 | |
| Condition report for an off-side rear road spring from chassis 10-G-111. | 26th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan132 | |
| Comparison of steering systems from Sunbeam and Panhard with the company's own. | 19th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan133 | |
| High-speed steering control issues, attributing them to flexible suspension rather than the steering mechanism. | 19th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan134 | |
| Suspension tests, comparing the ride and high-speed stability of a Hispano-Suiza car against a Rolls-Royce. | 19th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan135 | |
| Page discussing the need for special springs to improve the ride of the 40/50 HP model. | 27th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan136 | |
| The steering of a 3-Litre Sunbeam car, comparing its characteristics to the Phantom chassis. | 27th Apr 1926 | West Wittering \ O \ 2April1926-June1926 Scan137 | |
| Steering tests in Paris focusing on reducing shocks and high-speed wobble with new springs and hydraulic dampers. | 19th May 1926 | West Wittering \ O \ 2April1926-June1926 Scan138 | |
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