| Description | Date | Identifier | |
| Confidential memo discussing the production timeline for a chassis, confirming capacity and promising a quick job. | 31th Aug 1926 | Box 65a \ 1 scan0056 | |
| Secret memo discussing the continuation of experimental work on chassis alterations. | 21th Oct 1926 | Box 65a \ 1 scan0057 | |
| Progress on Phantom improvements and the production of experimental parts for the F.X. engine. | 15th Nov 1926 | Box 65a \ 1 scan0058 | |
| Progress and delays concerning the EAC.7 chassis build. | 15th Nov 1926 | Box 65a \ 1 scan0059 | |
| Completion of the EAC-7 chassis and coordination with coachbuilder Hoopers for the body. | 18th Nov 1926 | Box 65a \ 1 scan0060 | |
| Difficulties with body design for chassis EAC-7 and proposing a temporary solution. | 25th Nov 1926 | Box 65a \ 1 scan0061 | |
| Proposing a visit to examine an EAC-Vll chassis. | 1st Dec 1926 | Box 65a \ 1 scan0062 | |
| Chassis visit to France and a list of proposed technical improvements for models EAC.7 and EAC.9. | 31th Dec 1926 | Box 65a \ 1 scan0063 | |
| List of proposed improvements for shock dampers, magneto, engine, and drivetrain components. | 1st Jan 1927 | Box 65a \ 1 scan0064 | |
| Retention of a 20 HP car for design reference and the possibility of using car EAC.7. | 1st Jan 1927 | Box 65a \ 1 scan0065 | |
| The arrangements for a visit to Le Canadel. | 26th Jan 1927 | Box 65a \ 1 scan0066 | |
| Chassis weight measurements broken down by front and rear axles. | 2nd Feb 1927 | Box 65a \ 1 scan0067 | |
| List of required modifications and repairs for the 14-EX car chassis. | 19th Feb 1927 | Box 65a \ 1 scan0068 | |
| List of modifications and fittings applied to a specific chassis. | 17th Mar 1927 | Box 65a \ 1 scan0069 | |
| Record of modifications to the carburetter, pistons, and control systems for S.EAC.II.Unit -12.EX. | 17th Mar 1927 | Box 65a \ 1 scan0070 | |
| Painting instructions for the first EAC. 7 car, enclosing a watercolour sketch for guidance. | 19th Mar 1927 | Box 65a \ 1 scan0071 | |
| Confirming the return of a watercolour sketch of a car. | 21th Mar 1927 | Box 65a \ 1 scan0072 | |
| Modifications and performance of the 10-EX and EAC-7 experimental cars. | 20th Apr 1927 | Box 65a \ 1 scan0073 | |
| Alterations made to the 10-EX car, covering body modifications and suspension performance. | 20th Apr 1927 | Box 65a \ 1 scan0074 | |
| Modifications to a vehicle's suspension, steering, and pedals, with a list of remaining work. | 7th May 1927 | Box 65a \ 1 scan0075 | |
| Requesting an update on the standardization status of experimental features for Phantom and India models. | 7th May 1927 | Box 65a \ 1 scan0076 | |
| Experimental design changes to chassis components, including steering, step irons, and cross members for various models. | 12th May 1927 | Box 65a \ 1 scan0077 | |
| From 'R' to 'Hs' regarding focusing on chassis work and a request to bring specific cars for review. | 14th May 1927 | Box 65a \ 1 scan0078 | |
| Experimental designs for the Phantom model, including instruments, headlamps, and carriers. | 14th May 1927 | Box 65a \ 1 scan0079 | |
| Continued list of discussion points on various chassis and body components including the dash, steering, battery, and headlamps. | 24th May 1927 | Box 65a \ 1 scan0080 | |
| Revised engine with a high crankchamber, and requesting the compression ratio for the EAC.7 engine. | 24th May 1927 | Box 65a \ 1 scan0081 | |
| From Hs. to E. regarding compression ratios for an aluminium engine with an anti-detonating head. | 27th May 1927 | Box 65a \ 1 scan0082 | |
| Undershield alterations and the decision to revise the EAC.7 engine design. | 31th May 1927 | Box 65a \ 1 scan0083 | |
| Loan arrangement of a Phantom car and a resulting car shortage. | 15th Jun 1927 | Box 65a \ 1 scan0084 | |
| Revision of the EAC.7 chassis, focusing on ground clearance, and the shift in priority to the EAC.10 revision. | 8th Jul 1927 | Box 65a \ 1 scan0085 | |
| Requesting the completion of an incomplete arrangement drawing (N.sch. 2422) for the EAC.7 first chassis. | 8th Jul 1927 | Box 65a \ 1 scan0086 | |
| Layout of proposed hypoid axle gears, models EAC.10 and EAC.12. | 8th Jul 1927 | Box 65a \ 1 scan0087 | |
| EAC.7 model chassis, its potential rebuild to an EAC.10, and issues with the Type 1 starter motor solenoid. | 2nd Jul 1927 | Box 65a \ 1 scan0088 | |
| Replacement of car 8-EX with 12-EX, detailing issues with shock absorbers, steering, and oil. | 19th Jul 1927 | Box 65a \ 1 scan0089 | |
| Letter regarding the arrival of car 12 E.X., changes to delivery plans, and comments on its technical features. | 20th Jul 1927 | Box 65a \ 1 scan0090 | |
| Steering oil tests, axle control modifications, and the logistics of moving a specific car. | 21th Jul 1927 | Box 65a \ 1 scan0091 | |
| Letter discussing satisfaction with car 12 E.X., requesting prints of non-standard engine parts, and suggesting modifications for increased power and improved suspension. | 21th Jul 1927 | Box 65a \ 1 scan0092 | |
| Arrangements for the 12-EX car to be left at Bruton Street Garage and returned to Derby. | 22th Jul 1928 | Box 65a \ 1 scan0093 | |
| Letter detailing issues and performance feedback for car 12 E.X. | 28th Jul 1927 | Box 65a \ 1 scan0094 | |
| Issues and conditions for satisfactory steering performance on cars. | 28th Jul 1927 | Box 65a \ 1 scan0095 | |
| Thank you note from Maurice Olley before sailing from Southampton. | 28th Jul 1927 | Box 65a \ 1 scan0096 | |
| Note discussing using a specific oil as a cheaper alternative to replacing a worm and nut part. | 12th Aug 1927 | Box 65a \ 1 scan0097 | |
| Steering problems, including tests, lubricants, temperature, and potential design improvements. | 12th Aug 1927 | Box 65a \ 1 scan0098 | |
| Summary of specifications for experimental car designs India 3, India 4, EAC.10, and EAC.12. | 13th Aug 1927 | Box 65a \ 1 scan0099 | |
| The F.10 blower and a list of urgent outstanding experimental work. | 22th Aug 1927 | Box 65a \ 1 scan0100 | |
| On modifications for a lighter and simplified Phantom engine for sports models and experimental chassis. | 29th Aug 1927 | Box 65a \ 1 scan0101 | |
| Secret memo detailing the development, testing, and production programme for the First Edition of the Sports Model. | 16th Sep 1927 | Box 65a \ 1 scan0102 | |
| The design of lightweight closed bodies for the sports model chassis by coachbuilders. | 19th Sep 1927 | Box 65a \ 1 scan0103 | |
| The Phantom Sports model, discussing G.1 dampers, vulcanised fibre, and crankshaft modifications. | 20th Sep 1927 | Box 65a \ 1 scan0104 | |
| Development and proposed modifications for a new sports car's body and engine. | 20th Sep 1927 | Box 65a \ 1 scan0105 | |
| Improvements to the engine and chassis, focusing on weight reduction and vibration issues. | 20th Sep 1927 | Box 65a \ 1 scan0106 | |
| Page 3 of a memo discussing getting help from Mr. Wormald to shorten a delay. | 21th Sep 1927 | Box 65a \ 1 scan0107 | |
| Internal memorandum discussing the challenges of coordinating with coachbuilders for the Sports Phantom design. | 21th Sep 1927 | Box 65a \ 1 scan0108 | |
| Modifications to the Phantom cylinder block and valve gear for the sports chassis. | 24th Sep 1927 | Box 65a \ 1 scan0109 | |
| Secret internal memo discussing production delays and the launch plan for a new Sports Model. | 24th Sep 1927 | Box 65a \ 1 scan0110 | |
| Development, timeline, and potential modifications for a new sports model. | 27th Sep 1927 | Box 65a \ 1 scan0111 | |
| Secret memo discussing the planning and specifications for a 10,000-mile test of a new sports car. | 27th Sep 1927 | Box 65a \ 1 scan0112 | |
| Secret memo from BJ regarding the production of 12 chassis for a Sports Model. | 29th Sep 1927 | Box 65a \ 1 scan0113 | |
| Secret memorandum discussing the financial and production implications of developing a new sports car model. | 30th Sep 1927 | Box 65a \ 1 scan0114 | |
| Dropping the Sports car from the programme due to the extent of alterations required. | 30th Sep 1927 | Box 65a \ 1 scan0115 | |
| Private memorandum discussing the strategic and technical challenges of developing a new Sports Model car. | 30th Sep 1927 | Box 65a \ 1 scan0116 | |
| The cost and risks of producing three experimental chassis before completing a 10,000-mile test. | 30th Sep 1927 | Box 65a \ 1 scan0117 | |
| The method and calculations for springing sports cars with 25% stiffer springs. | 30th Sep 1927 | Box 65a \ 1 scan0118 | |
| Technical memorandum detailing calculations and specifications for front springs and suspension adjustments. | 1st Oct 1927 | Box 65a \ 1 scan0119 | |
| Development progress on F engines and the Phantom Sports model chassis. | 1st Oct 1927 | Box 65a \ 1 scan0120 | |
| Recommending modifications for the Sports Model and their applicability to the standard Phantom. | 1st Oct 1927 | Box 65a \ 1 scan0121 | |
| Listing beneficial modifications for standard cars derived from sports car development. | 1st Oct 1927 | Box 65a \ 1 scan0122 | |
| Fairey engine performance and modifications to the Phantom Sports model chassis. | 1st Oct 1927 | Box 65a \ 1 scan0123 | |
| From 'BJ' discussing the production timeline for a new 'Sports Model', including testing, demonstration, and delivery targets. | 1st Oct 1927 | Box 65a \ 1 scan0124 | |
| Recommendation to produce seven engines for a new Sports Model, outlining their allocation and considerations for body design. | 4th Oct 1927 | Box 65a \ 1 scan0125 | |
| Typed note regarding the difficulty and testing of a modified wire wheel and hub. | 5th Oct 1927 | Box 65a \ 1 scan0126 | |
| Secret memorandum discussing the proposed alterations to create a Sports Model, including plans for three experimental chassis. | 5th Oct 1927 | Box 65a \ 1 scan0127 | |
| Recommending the assignment of an EAC number to the Phantom 'Sports' Chassis for better record keeping. | 10th Oct 1927 | Box 65a \ 1 scan0128 | |
| List of proposed standard modifications for the Sports Phantom model following a 10,000-mile test in France. | 5th Oct 1927 | Box 65a \ 1 scan0129 | |
| List of proposed engineering changes categorized by desirability: 'Highly Desirable', 'Non-Controversial', and 'Desirable'. | 5th Oct 1927 | Box 65a \ 1 scan0130 | |
| Continued list of vehicle specifications, with notes on alternatives, interdependencies, and exclusions for a sports car. | 7th Oct 1927 | Box 65a \ 1 scan0131 | |
| Requesting information to be gathered on the 'Sports Model' for a meeting that afternoon. | 7th Oct 1927 | Box 65a \ 1 scan0132 | |
| Secret internal memorandum discussing the development, necessary changes, and testing of a new Sports Model chassis. | 6th Oct 1927 | Box 65a \ 1 scan0133 | |
| Secret memo from BJ to Wor. regarding the development strategy for two new chassis series, a standard and a sports model. | 1st Oct 1927 | Box 65a \ 1 scan0134 | |
| Status and necessary changes for a Sports Car project. | 7th Oct 1927 | Box 65a \ 1 scan0135 | |
| Status report on various items, categorized by urgency and difficulty. | 7th Oct 1927 | Box 65a \ 1 scan0136 | |
| Internal Q&A memo regarding necessary changes, delays, and costs for a 'Sports Model' chassis prior to a 10,000-mile test. | 7th Oct 1927 | Box 65a \ 1 scan0137 | |
| Question and answer document discussing the development and production strategy for a sports model chassis. | 7th Oct 1927 | Box 65a \ 1 scan0138 | |
| Introduction and production of a new sports model car. | 7th Oct 1927 | Box 65a \ 1 scan0139 | |
| Improvements for the Sports Phantom and the next 10,000 miles car, to be implemented for testing in France. | 8th Oct 1927 | Box 65a \ 1 scan0140 | |
| Proposals for lightening the propeller shaft and thrust bearing on the Phantom Sports model. | 8th Oct 1927 | Box 65a \ 1 scan0141 | |
| Confirmation of a phone message from R. to HS. regarding necessary alterations to a final sports car due to a broken crankchamber. | 1st Oct 1927 | Box 65a \ 1 scan0142 | |
| Proposals and alternatives for the production of a new sports model chassis. | 10th Oct 1927 | Box 65a \ 1 scan0143 | |
| Telephone message discussing the commercial implications of introducing a new sports chassis. | 13th Oct 1927 | Box 65a \ 1 scan0144 | |
| Secret memorandum regarding the 'Sports Model' and a telephone message about a meeting. | 13th Oct 1927 | Box 65a \ 1 scan0145 | |
| Secret memo from BJ to R regarding the introduction of improvements to the standard chassis and plans for a Sports Model. | 1st Oct 1927 | Box 65a \ 1 scan0146 | |
| Secret memo from BJ to H. proposing the introduction of an attractive sports body car to boost sales and overcome a difficult financial period. | 27th Oct 1927 | Box 65a \ 1 scan0147 | |
| Secret memo discussing the policy and risks of introducing an improved sports chassis and its impact on standard model sales. | 13th Oct 1927 | Box 65a \ 1 scan0148 | |
| Secret memo discussing the strategy and timeline for introducing improvements to the standard chassis and plans for a Sports Model. | 15th Oct 1927 | Box 65a \ 1 scan0149 | |
| Secret memo from BJ to H. proposing the launch of a sports body on the standard chassis for the 1928 financial year. | 1st Oct 1927 | Box 65a \ 1 scan0150 | |
| Secret memo discussing the strategic implications of introducing a new sports chassis with improvements versus the standard chassis. | 13th Oct 1927 | Box 65a \ 1 scan0151 | |
| Specifications for the dashboard, pedals, footboards, scuttle, lamp controls, and steering column for the Sports series EAC.14. | 13th Oct 1927 | Box 65a \ 1 scan0152 | |
| Secret memo requesting the destruction of a private letter sent in error concerning the Sports Model. | 14th Oct 1927 | Box 65a \ 1 scan0153 | |
| Improvements for a sports car, including strengthening the crankchamber, simplifying the engine, and a new carburetter design. | 17th Oct 1927 | Box 65a \ 1 scan0154 | |
| Secret memo outlining plans for sports car chassis and body production following a conference at Olympia. | 18th Oct 1927 | Box 65a \ 1 scan0155 | |
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