| Description | Date | Identifier | |
| Design of car bumpers, comparing flat 'half-round' sections to tubular bumpers. | 4th Jun 1930 | Box 19 \ 4 Scan005 | |
| Return of a car due to issues with its springs, shackles, and 'Staybrite' wheels, and its planned shipment to New York. | 4th Jun 1930 | Box 19 \ 4 Scan006 | |
| Improvements to the Change Speed Lever to improve smoothness and prevent jingling. | 4th Jun 1930 | Box 19 \ 4 Scan007 | |
| Requests and suggestions to improve coachwork conditions for the L.H. Phantom II Chassis. | 4th Jun 1930 | Box 19 \ 4 Scan008 | |
| Rear passenger seating comfort and layout proposals for a 7-passenger vehicle, comparing different line proposals. | 4th Jun 1930 | Box 19 \ 4 Scan009 | |
| Chassis and body design, focusing on rear spare wheel placement, frame modifications, and comparisons to competitor models. | 13th Jan 1930 | Box 19 \ 4 Scan010 | |
| Design modifications for seat rake, petrol tank, and fuel system for American market specifications. | 13th Jan 1930 | Box 19 \ 4 Scan011 | |
| Summary of considerations for fuel tank design and proposed bodywork modifications for a Phantom II model. | 3rd Jun 1930 | Box 19 \ 4 Scan012 | |
| Blueprint with design suggestions for a car's rear end, including seating ergonomics and spare wheel placement. | 3rd Jun 1930 | Box 19 \ 4 Scan013 | |
| Design of left-hand chassis floorboards and the placement of a Bosch switch. | 4th Jun 1930 | Box 19 \ 4 Scan014 | |
| Sending the bonnet and wing-stays for an experimental left-hand Phantom II to Park Wards. | 5th Jun 1930 | Box 19 \ 4 Scan015 | |
| Bonnet and radiator design, fuel and oil effects on temperature, and the aesthetic issues with louvres and shutters. | 5th Jun 1930 | Box 19 \ 4 Scan016 | |
| Bonnet and scuttle ventilation, engine protection from dirt, and dashboard insulation. | 5th Jun 1930 | Box 19 \ 4 Scan017 | |
| Suggestion to insulate the driver's compartment from engine sound and heat by introducing an air space. | 1st Jun 1930 | Box 19 \ 4 Scan018 | |
| Preference for a half-elliptical bumper over a tubular one, and concerns about the bumper fitted to the 24-EX model. | 1st Jun 1930 | Box 19 \ 4 Scan019 | |
| Adaptation of a backing light switch to be used as a stop light switch for the L.H. P.2 chassis. | 6th Jun 1930 | Box 19 \ 4 Scan020 | |
| Design of the L.H. chassis battery support and its universal subframe. | 6th Jun 1930 | Box 19 \ 4 Scan021 | |
| Clearance of the crankcase breather pipe on an L.H. P.2 chassis with an extra oil cock control rod. | 7th Jun 1930 | Box 19 \ 4 Scan022 | |
| Progress on the experimental left-hand drive Phantom II, including parts sent to Park Ward and chassis delays. | 7th Jun 1930 | Box 19 \ 4 Scan023 | |
| Instruction to measure the camber of the front springs on an American Phantom 1, and remove a spring and shock absorber for examination. | 12th Jun 1930 | Box 19 \ 4 Scan024 | |
| List of outstanding experimental work required on the L.H. Phantom II Chassis. | 12th Jun 1930 | Box 19 \ 4 Scan025 | |
| List of outstanding experimental work and tests required for the L.H. Phantom II Chassis, with handwritten annotations and status updates. | 12th Jun 1930 | Box 19 \ 4 Scan026 | |
| Phantom II chassis, American coachwork requirements, and the status of the 2nd experimental car. | 12th Jun 1930 | Box 19 \ 4 Scan027 | |
| Confirming an agreement to test a left-hand chassis for 10,000 miles using American-spec oils and petrol. | 12th Jun 1930 | Box 19 \ 4 Scan028 | |
| Telegram received by telephone regarding testing experimental cars with American petrol and oil. | 12th Jun 1930 | Box 19 \ 4 Scan029 | |
| Telegram received by telephone regarding a recommendation for a lubrication test. | 12th Jun 1930 | Box 19 \ 4 Scan030 | |
| Arrangements for shipping 'American Car 404 MR' to avoid paying license tax. | 13th Jun 1930 | Box 19 \ 4 Scan031 | |
| Clutch performance issues, detailing complaints, costs, and statistics for American Phantom I and Phantom cars. | 13th Jun 1930 | Box 19 \ 4 Scan032 | |
| Technical analysis of clutch performance, wear on different linings, and potential improvements under various driving conditions. | 13th Jun 1930 | Box 19 \ 4 Scan033 | |
| Page discussing the issue of clutch-jagger after storage and a potential solution using Ferodo. | 14th Jun 1930 | Box 19 \ 4 Scan034 | |
| Follow-up request for a drawing of an L.H. S.S. instrument board for a body that is a month overdue. | 14th Jun 1930 | Box 19 \ 4 Scan035 | |
| Request for the bonnet of a 25-EX model to complete the painting of fine lines on its mouldings. | 14th Jun 1930 | Box 19 \ 4 Scan036 | |
| With a sketch discussing a bumper design using 'U' and semi-elliptic springs to absorb collision impacts. | 14th Jun 1930 | Box 19 \ 4 Scan037 | |
| Memorandum discussing whether to keep car 404 MR for another two months for further testing and comparisons. | 16th Jun 1930 | Box 19 \ 4 Scan038 | |
| List of modifications and fittings requested for car 24-EX, including brakes, suspension, and body panels. | 16th Jun 1930 | Box 19 \ 4 Scan039 | |
| Modifications for car 24-EX, concerning the cross-member, lubrication, clutch, and filters. | 16th Jun 1930 | Box 19 \ 4 Scan040 | |
| Five improvements for the petrol gauge, which is deemed unsatisfactory. | 16th Jun 1930 | Box 19 \ 4 Scan041 | |
| List of suggestions and experimental data derivations for preventing fuel spillage and improving a fuel tank system. | 16th Jun 1930 | Box 19 \ 4 Scan042 | |
| Alternative designs for a tank, its fittings, and venting system. | 16th Jun 1930 | Box 19 \ 4 Scan043 | |
| Arrangements to road test a car with improvements before its 10,000-mile test in France. | 17th Jun 1930 | Box 19 \ 4 Scan044 | |
| Return of a car to the U.S.A. and its licensing. | 18th Jun 1930 | Box 19 \ 4 Scan045 | |
| Telegram requesting an approximate completion and delivery date for chassis 26.EX. | 10th Jun 1930 | Box 19 \ 4 Scan046 | |
| Telegram recommending testing of 24 FX at Brooklands before a Continental run due to various troubles. | 19th Jun 1930 | Box 19 \ 4 Scan047 | |
| Revision and approval process for a proposed L.H.S.S. instrument board. | 19th Jun 1930 | Box 19 \ 4 Scan048 | |
| Faults on vehicle 24-EX while in an unfinished state, categorized by engine, gearbox, and exhaust issues. | 19th Jun 1930 | Box 19 \ 4 Scan049 | |
| The dangerous position of the petrol filter on a left-hand chassis, highlighting fire risks. | 20th Jun 1930 | Box 19 \ 4 Scan050 | |
| Request to arrange collection for a second left-hand chassis body. | 20th Jun 1930 | Box 19 \ 4 Scan051 | |
| Arranging collection of an experimental left-hand drive P.II. No.2 body from Park Ward coachbuilders. | 20th Jun 1930 | Box 19 \ 4 Scan052 | |
| Notification regarding the upcoming expiration of a motor car licence for car 24-EX. | 23th Jun 1930 | Box 19 \ 4 Scan053 | |
| Arrangements for the collection of a Park Ward enclosed limousine body for an experimental left-hand drive vehicle. | 21th Jun 1930 | Box 19 \ 4 Scan054 | |
| Cracks in cylinder heads and proposing the addition of internal ribs as a solution. | 24th Jun 1930 | Box 19 \ 4 Scan055 | |
| Investigation into the statistics of petrol gauge failures and the subsequent modifications made. | 24th Jun 1930 | Box 19 \ 4 Scan056 | |
| Improvements and remaining issues with petrol gauges, comparing different designs. | 24th Jun 1930 | Box 19 \ 4 Scan057 | |
| The advantages and fitting procedures of a 'Nivex' gauge and improvements to address previous issues. | 24th Jun 1930 | Box 19 \ 4 Scan058 | |
| Concluding page of a typed document making a comparison to products in the United States. | 24th Jun 1930 | Box 19 \ 4 Scan059 | |
| Arranging a test drive and trips for a Left-Hand Chassis 34-EX. | 24th Jun 1930 | Box 19 \ 4 Scan060 | |
| Visit to Dunlop and providing recommendations on wheels and tires for the American market. | 24th Jun 1930 | Box 19 \ 4 Scan061 | |
| Wheel and tire standards, discussing compatibility and standardization between Dunlop and American manufacturers. | 24th Jun 1930 | Box 19 \ 4 Scan062 | |
| Issues with tyres and comparing American and Dunlop rim and tyre standards. | 24th Jun 1930 | Box 19 \ 4 Scan063 | |
| Copy of a cable to New York concerning wheel and tire specifications and supply. | 25th Jun 1930 | Box 19 \ 4 Scan064 | |
| Theoretical and practical considerations of using a wooden deep sill subframe versus a metal one for coachwork. | 25th Jun 1930 | Box 19 \ 4 Scan065 | |
| Bending and torsion tests on a piece of ash wood to determine its modulus of elasticity. | 25th Jun 1930 | Box 19 \ 4 Scan066 | |
| Calculation and conclusion regarding the replacement of a sub-frame with a standardised deep sill. | 25th Jun 1930 | Box 19 \ 4 Scan067 | |
| Successful lapping operations on various engine and chassis components. | 25th Jun 1930 | Box 19 \ 4 Scan068 | |
| Suggesting it would be useful for America to know the conditions for a satisfactory unlubricated water pump spindle. | 25th Jun 1930 | Box 19 \ 4 Scan069 | |
| Performance of different materials for valve stem washers. | 25th Jun 1930 | Box 19 \ 4 Scan070 | |
| The Brooklands tests of the Phantom II cooling system from June 1930. | 25th Jun 1930 | Box 19 \ 4 Scan071 | |
| Engine cooling tests, focusing on ventilation and the effectiveness of front versus rear bonnet shutters. | 30th Jun 1930 | Box 19 \ 4 Scan072 | |
| Cooling system performance in hot climates, focusing on ventilated bonnets, radiator design, and testing on an 18-EX car. | 25th Jun 1930 | Box 19 \ 4 Scan073 | |
| Car performance testing, detailing issues with high oil temperatures, petrol supply problems and recorded lap speeds. | 25th Jun 1930 | Box 19 \ 4 Scan074 | |
| Analysis of the inferior performance of car 18-EX, attributing slow speed to various mechanical and design factors. | 25th Jun 1930 | Box 19 \ 4 Scan075 | |
| Cooling system tests, including fan belt tension, water circulation, and the American Phantom II. | 25th Jun 1930 | Box 19 \ 4 Scan076 | |
| Summary of improvements for the Phantom II regarding bonnet ventilation, fan efficiency, and radiator design. | 1st Aug 1930 | Box 19 \ 4 Scan077 | |
| Car bonnet design for improved cooling at high speeds on Continental and English roads. | 25th Jun 1930 | Box 19 \ 4 Scan078 | |
| Graph plotting the temperature (°C) of top water, oil, and bottom water against miles run. | 2nd Jul 1930 | Box 19 \ 4 Scan079 | |
| Mostly blank page with a purple ink date stamp in the bottom right corner. | 2nd Jul 1930 | Box 19 \ 4 Scan080 | |
| Graph of overheating test results for a Standard PII Cabriolet with different ventilation modifications. | 2nd Jul 1930 | Box 19 \ 4 Scan081 | |
| Graph plotting top and bottom water temperatures against various cooling configurations at a constant speed. | 2nd Jul 1930 | Box 19 \ 4 Scan082 | |
| Graph plotting oil and water temperature against miles run under varying speed and ventilation conditions. | 2nd Jul 1930 | Box 19 \ 4 Scan083 | |
| Bar chart comparing critical ATS temperatures for spring-tensioned versus positively tensioned fan belts. | 2nd Jul 1930 | Box 19 \ 4 Scan084 | |
| Graph comparing the top water temperature of two experimental engine configurations (18 E.X. and 19 E.X.) over distance. | 2nd Jul 1930 | Box 19 \ 4 Scan085 | |
| Blueprint showing a modification to the front undershield to improve the cooling system. | 2nd Jul 1930 | Box 19 \ 4 Scan086 | |
| Largely blank or faded document page with a date stamp. | 2nd Jul 1930 | Box 19 \ 4 Scan087 | |
| Modifications to the subframe of car 25-EX. | 25th Jun 1930 | Box 19 \ 4 Scan088 | |
| Sticking of the steering column's ball thrust cover and proposing alternative solutions. | 26th Jun 1930 | Box 19 \ 4 Scan089 | |
| Standardisation and design of valve spindle packings. | 27th Jun 1930 | Box 19 \ 4 Scan090 | |
| Comparing the American and English Phantom I models, focusing on springing and cooling performance during a trip in America. | 1st Jul 1930 | Box 19 \ 4 Scan091 | |
| From 'Sg' to 'Hs' concerning test results at Brooklands for the English and American Phantom II models. | 1st Jul 1930 | Box 19 \ 4 Scan092 | |
| Requesting a status update on items 1-7 concerning the L.H.Phantom II Chassis. | 1st Jul 1930 | Box 19 \ 4 Scan093 | |
| The first left-hand drive chassis (24-EX & 25-EX) sent to France, detailing 13 subsequent alterations. | 1st Jul 1930 | Box 19 \ 4 Scan094 | |
| List of modifications and updates for specific car models, including notes on cars 24-EX and 25-EX. | 1st Jul 1930 | Box 19 \ 4 Scan095 | |
| Vehicle testing, detailing issues like resonant boom and wing movement, and planning for body fitting and design decisions on a Phantom II model. | 2nd Jul 1930 | Box 19 \ 4 Scan096 | |
| Logistics and method for shipping a Second Experimental L.H. Car to America. | 2nd Jul 1930 | Box 19 \ 4 Scan097 | |
| Delay in providing blueprints for the L.H.Phantom II Chassis pending design finalization and vehicle testing. | 22th Jul 1930 | Box 19 \ 4 Scan098 | |
| Performance test notes for vehicle 24 EX at Brooklands. | 2nd Jul 1930 | Box 19 \ 4 Scan099 | |
| Bumpers, clutch, and road springs for a left-hand chassis. | 2nd Jul 1930 | Box 19 \ 4 Scan100 | |
| Report page on modifications to gear shift and shutters, receipt of sample horns from Lucas, and use of American oils on car 24-EX. | 2nd Jul 1930 | Box 19 \ 4 Scan101 | |
| Evaluation of an American tool for detaching top valve spring washers. | 3rd Jul 1930 | Box 19 \ 4 Scan102 | |
| American bumpers, collision tests, and manufacturing for the L.H.Phantom II Chassis. | 1st Jul 1930 | Box 19 \ 4 Scan103 | |
| Brooklands tests to address car over-heating issues by modifying the fan, radiator, and undershield. | 3rd Jul 1930 | Box 19 \ 4 Scan104 | |
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