| Description | Date | Identifier | |
| The phenomenon of front brake thumping and the tests conducted to find a solution. | 1st Sep 1924 | Morton \ M3.4 img020 | |
| Brake thumping, detailing tests and solutions involving pull-off spring tension. | 12th Jul 1923 | Morton \ M3.4 img021 | |
| Recommendation to add friction to a balance lever with a handwritten note about its implementation on pendulum levers. | 1st Sep 1924 | Morton \ M3.4 img022 | |
| Radiator and road spring tests on a 40/50 HP model for use in France. | 10th Sep 1924 | Morton \ M3.4 img023 | |
| Radiator size, bonnet panels, pistons, and pivot pin bushes. | 10th Sep 1924 | Morton \ M3.4 img024 | |
| Braking, Hartford shock absorbers, and road spring tests. | 10th Sep 1934 | Morton \ M3.4 img025 | |
| Recommending sending Woodhead springs to France for testing on cars 9-PK and 98-NK. | 10th Sep 1924 | Morton \ M3.4 img026 | |
| The bump test results for Woodheads 12¼% road springs, detailing plate failures and performance. | 11th Sep 1924 | Morton \ M3.4 img027 | |
| Tests conducted with lower lift cams on an E.A.C. engine. | 19th Sep 1924 | Morton \ M3.4 img028 | |
| The results of tests with a 118° low lift camshaft on engine no. 1-EAC-11. | 1st Sep 1924 | Morton \ M3.4 img029 | |
| Valve bounce observed using an oscilloscope on engine 1-EAG-11 at various speeds. | 9th Sep 1924 | Morton \ M3.4 img030 | |
| Valve bounce testing for engine 1-EAC-11 with a low lift camshaft. | 1st Sep 1924 | Morton \ M3.4 img031 | |
| Graph comparing the power curves of two different camshafts (High Lift vs Low Lift) for an E.A.C. engine. | 16th Sep 1924 | Morton \ M3.4 img032 | |
| Blueprint graph comparing high and low lift profiles for E.A.C. inlet and exhaust camshafts. | 17th Sep 1924 | Morton \ M3.4 img033 | |
| Blueprint comparing high and low lift profiles for inlet and exhaust cams. | 17th Sep 1924 | Morton \ M3.4 img034 | |
| Bump tests conducted on road springs, detailing fracture data for Woodhead springs. | 1st Sep 1924 | Morton \ M3.4 img035 | |
| Comparing the hardness, thickness, and life of Woodhead and Firth leaf springs. | 20th Sep 1924 | Morton \ M3.4 img036 | |
| Secret memo discussing the delay of the E.A.C.11 dummy chassis and proposing solutions regarding the radiator, bonnet, and springs. | 22th Sep 1924 | Morton \ M3.4 img037 | |
| Analysis and life comparison of six Woodhead springs, detailing their physical properties and chemical composition. | 20th Sep 1924 | Morton \ M3.4 img038 | |
| Comparing the performance of Rapson tyres against Dunlop tyres during tests with 4-wheel brakes in France. | 1st Sep 1924 | Morton \ M3.4 img039 | |
| Windscreen failures during a 10,000 miles test in France. | 23th Sep 1924 | Morton \ M3.4 img040 | |
| Stiffening the bottom windscreen panel on vehicle 9-PK. | 23th Sep 1924 | Morton \ M3.4 img041 | |
| Noise amplification issues caused by fitting discs to wire wheels. | 23th Sep 1924 | Morton \ M3.4 img042 | |
| Secret memo discussing the need and recommended styles for a covered body on an EAC.11 experimental car. | 24th Sep 1924 | Morton \ M3.4 img043 | |
| Servo gear noise in 40/50 HP production chassis fitted with 4-wheel brakes. | 24th Sep 1924 | Morton \ M3.4 img044 | |
| Testing different servo gear arrangements and reductions to eliminate noise. | 24th Sep 1924 | Morton \ M3.4 img045 | |
| Road tests of Firths 12 1/2 springs and brakes, noting frequent induction and oil pipe breakages. | 26th Sep 1924 | Morton \ M3.4 img046 | |
| Summarizing a 10,000-mile test on vehicle 9-PK, detailing performance and component wear. | 26th Sep 1924 | Morton \ M3.4 img047 | |
| The performance and wear of exhaust, steering, and engine components. | 26th Aug 1924 | Morton \ M3.4 img048 | |
| Various mechanical failures and issues observed during testing. | 26th Sep 1924 | Morton \ M3.4 img049 | |
| Matters requiring modification on a vehicle. | 26th Sep 1924 | Morton \ M3.4 img050 | |
| The slow running performance of the E.A.C. engine, comparing it to the standard 40/50 HP engine. | 20th Mar 1924 | Morton \ M3.4 img051 | |
| The failure of original EAC 4-bladed sheetmetal fans due to the set in the blades. | 1st Apr 1925 | Morton \ M3.5 img001 | |
| Modifications made to car 93-NK for tests in France. | 1st Apr 1925 | Morton \ M3.5 img002 | |
| Modifications and failures for various vehicle components. | 1st Apr 1925 | Morton \ M3.5 img003 | |
| Secret memo regarding the results of a 10,000-mile test on Series 'V' front springs and suggesting improvements. | 3rd Apr 1925 | Morton \ M3.5 img004 | |
| 'EAC' steering, comparing the force required to turn the wheels against other steering types. | 1st Apr 1925 | Morton \ M3.5 img005 | |
| Comparing steering effort based on tyre pressures and front axle weights for 'V' series and 40/50 cars. | 6th Apr 1925 | Morton \ M3.5 img006 | |
| Tests conducted on the steering gear to address issues with heavy steering. | 1st Apr 1925 | Morton \ M3.5 img007 | |
| The efficiency and wear of a steering gear after a 10,000-mile road test. | 6th Apr 1925 | Morton \ M3.5 img008 | |
| Design and experimental trial for an anti-rattle dynamo drive. | 1st Apr 1925 | Morton \ M3.5 img009 | |
| Secret memo from 'R' regarding the design of the Dynamo Drive X8103. | 15th Apr 1925 | Morton \ M3.5 img010 | |
| Secret memo regarding the unsatisfactory 8,000-mile life of 'V' series front springs and a recommendation for experimental testing in France. | 6th Apr 1925 | Morton \ M3.5 img011 | |
| Description of the features of the 12 volt Lucas type electrical system on the 40/50s model. | 9th Apr 1925 | Morton \ M3.5 img012 | |
| Cover note for a report on 'V' Series car tests in France after 3,000 miles, involving the fitting of new Hardy couplings. | 15th Apr 1925 | Morton \ M3.5 img013 | |
| Chassis 93-MK after a 3,000-mile test. | 1st Apr 1925 | Morton \ M3.5 img014 | |
| Issues with cylinder expansion, dirt ingress, oil leaks, and the performance of the clutch, dynamo, and gearbox. | 11th Apr 1925 | Morton \ M3.5 img015 | |
| The condition of various vehicle components including the exhaust, pedals, steering, and engine parts. | 11th Apr 1925 | Morton \ M3.5 img016 | |
| Hand-drawn sketch and typed description of a gearbox fabric coupling. | 15th Apr 1925 | Morton \ M3.5 img017 | |
| The analysis and required improvements for the 'V' series steering system. | 15th Apr 1925 | Morton \ M3.5 img018 | |
| Design improvements for a gearbox fabric coupling to increase its strength. | 4th Apr 1925 | Morton \ M3.5 img019 | |
| Outlining chassis improvements and problem areas for future car development. | 15th Apr 1925 | Morton \ M3.5 img020 | |
| No.2 connecting rod bearing failure on car GK-NK during 'V' Series tests in France. | 1st Apr 1925 | Morton \ M3.5 img021 | |
| Test to reproduce a connecting rod bearing failure on an E.A.C. engine. | 16th Apr 1925 | Morton \ M3.5 img022 | |
| Steering column flange failure discovered during tests in France for the EAC 'V' Series. | 7th Apr 1925 | Morton \ M3.5 img023 | |
| Engine from car 98-NK after 10,000 miles of testing in France, focusing on connecting rod bearings. | 8th Apr 1925 | Morton \ M3.5 img024 | |
| 4-EAC-11 engine taken from a 98-MK chassis after 10,000 miles. | 25th Sep 1924 | Morton \ M3.5 img025 | |
| Wear on various engine components after a test run. | 25th Sep 1924 | Morton \ M3.5 img026 | |
| The condition and wear of various engine components after testing. | 25th Sep 1924 | Morton \ M3.5 img027 | |
| Induction & exhaust fittings and an oil relay. | 25th Sep 1924 | Morton \ M3.5 img028 | |
| The preparation of an 'EAC' 'V' series car with a Hooper touring body for delivery to W.W. | 5th Apr 1925 | Morton \ M3.5 img029 | |
| Secret memo regarding the placement of the starter motor on the engine instead of the gearbox. | 20th Apr 1925 | Morton \ M3.5 img030 | |
| 10,000-mile road test conducted on the 93-NK car in France. | 20th Apr 1925 | Morton \ M3.5 img031 | |
| Chassis 93-NK after completing 5,447 miles, detailing engine and steering column condition. | 16th Apr 1925 | Morton \ M3.5 img032 | |
| The condition of various vehicle components after testing. | 16th Apr 1925 | Morton \ M3.5 img033 | |
| High-speed steering wobbles caused by using low-pressure tyres on 40/50 HP cars fitted with front-wheel brakes. | 20th Apr 1925 | Morton \ M3.5 img034 | |
| Delayed testing scheme for 'Y' series steering problems and steering wobbles. | 20th Apr 1925 | Morton \ M3.5 img035 | |
| Choice between different types of car horns, including an electrical vibrator, a Klaxon, and a 'Boa Constrictor' bulb horn. | 20th Apr 1925 | Morton \ M3.5 img036 | |
| Secret memo regarding a hold-up at the Works for instructions on the 'V' Series steering. | 27th Apr 1925 | Morton \ M3.5 img037 | |
| Issues and potential solutions for fabric couplings on 40/50 and E.A.C. models. | 4th Apr 1925 | Morton \ M3.5 img038 | |
| Progress report on the endurance test of an 'EAC' fabric coupling on a 93-NK car. | 1st May 1925 | Morton \ M3.5 img039 | |
| The advantages of a parallel control axle system for the 45HP 'X' Series vehicle. | 9th May 1925 | Morton \ M3.5 img040 | |
| Vehicle components and a proposed increase in track for Colonial work. | 11th May 1925 | Morton \ M3.5 img041 | |
| 10,000-mile test of a 'V' series car in France, detailing a connecting rod failure. | 11th May 1925 | Morton \ M3.5 img042 | |
| The failure of connecting rod bearings on a 93-NK car. | 12th May 1925 | Morton \ M3.5 img043 | |
| Proposing a modification to the E.A.C. clutch to improve its stopping action. | 12th May 1925 | Morton \ M3.5 img044 | |
| Comparing the steering performance and wobble of a borrowed 20 HP Sunbeam car against proprietary models. | 16th May 1925 | Morton \ M3.5 img045 | |
| Secret memo regarding a proposed visit to W.W. with an 'India' car for improvements and sending another to France. | 19th May 1925 | Morton \ M3.5 img046 | |
| Chassis design modifications, specifically clearance in relation to the EAC and Silver Ghost types. | 29th May 1925 | Morton \ M3.5 img047 | |
| The failure of connecting rods and whitemetal bearings from a 93-NK car. | 4th Jun 1925 | Morton \ M3.5 img048 | |
| The condition and lifespan of a fabric coupling after 15,000 miles. | 1st Jun 1925 | Morton \ M3.5 img049 | |
| Secret memorandum detailing front brake adjustments, modifications, and urgent requirements. | 1st Jun 1925 | Morton \ M3.5 img050 | |
| Modifications and trial experiments for EAC & Goshawk connecting rods. | 12th Jun 1925 | Morton \ M3.5 img051 | |
| Suggesting four modifications to an EAC chassis to improve safety by reducing fierce or 'jaggering' brakes. | 22th Jun 1925 | Morton \ M3.5 img052 | |
| Ignition and brake issues, including sticking and vibration, on a New Phantom car. | 26th Jun 1925 | Morton \ M3.5 img053 | |
| Carburetter and ignition plug issues for the New Phantom model. | 30th Jun 1925 | Morton \ M3.5 img054 | |
| Ignition failure and brake sticking issues on a New Phantom car. | 26th Jun 1925 | Morton \ M3.5 img055 | |
| Alterations to the 40/50 HP chassis front shock dampers and front axle anchorage. | 5th May 1919 | Morton \ M3.6 img001 | |
| Requesting a new design scheme for the 40/50 HP clutch operation linkage following a change in transmission slope. | 13th May 1919 | Morton \ M3.6 img002 | |
| The construction and an alternative manufacturing method for 40/50 HP radiator shutters. | 13th May 1919 | Morton \ M3.6 img003 | |
| Finishing and fitting of radiator shutters, including modifications to the vent pipe. | 13th May 1919 | Morton \ M3.6 img004 | |
| Preferred warmer khaki colour for a new car body. | 15th May 1919 | Morton \ M3.6 img005 | |
| Investigating potential fuel boiling in the carburetter and the possibility of removing the hot water jacket. | 20th May 1919 | Morton \ M3.6 img006 | |
| Impracticality of constructing a square box section front axle. | 1st May 1919 | Morton \ M3.6 img007 | |
| Methods for radiator temperature regulation, including screening and a water bye-pass system. | 28th May 1919 | Morton \ M3.6 img008 | |
| Sketch and specifications for the thermostat arrangement on a Packard car. | 2nd Jun 1919 | Morton \ M3.6 img009 | |
| Sketch of an engine cooling system showing the thermostat and butterfly valves. | 17th Nov 1921 | Morton \ M3.6 img010 | |
| Requested modifications to the front bonnet catch for easier operation. | 2nd Jun 1919 | Morton \ M3.6 img011 | |
| Requesting a pair of revised bonnet catches for trial, as per Mr. Royce's wishes. | 1st May 1919 | Morton \ M3.6 img012 | |
| Design improvements for the 40/50 HP chassis air pump, with sketches. | 31th May 1919 | Morton \ M3.6 img013 | |
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