| Description | Date | Identifier | |
| Weight of a Weymann body and a request to adjust the rear springs accordingly. | 16th Nov 1925 | Box 71 \ 1 scan0171 | |
| Chassis springing instructions worksheet for calculating wheel loads and spring ratings. | 16th Dec 1924 | Box 71 \ 1 scan0172 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. to carry out work on a car as per an attached estimate. | 17th Nov 1925 | Box 71 \ 1 scan0173 | |
| Instruction memo to Messrs. Sanderson & Holmes Ltd. to carry out work on car 44-PK. | 17th Nov 1925 | Box 71 \ 1 scan0174 | |
| Instruction memo to Messrs. Sanderson & Holmes Ltd. to carry out work on a car based on an attached estimate. | 17th Nov 1925 | Box 71 \ 1 scan0175 | |
| Instruction to arrange for work to be carried out on the 8-EX car by Messrs. Sanderson & Holmes Ltd. | 17th Nov 1925 | Box 71 \ 1 scan0176 | |
| Correction memo regarding the addition of lead ballast for a Weymann Body test. | 17th Nov 1925 | Box 71 \ 1 scan0177 | |
| Two available coachwork options for chassis EAC.1 and requesting dashboard dimensions. | 20th Nov 1925 | Box 71 \ 1 scan0178 | |
| Instruction to Messrs. Sanderson & Holmes Ltd to carry out work on car 8-EX as per an attached estimate. | 23th Nov 1925 | Box 71 \ 1 scan0179 | |
| Progress report on various experimental car bodies and components. | 23th Nov 1925 | Box 71 \ 1 scan0180 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. to carry out work on car 9-EX as per an attached estimate. | 28th Nov 1925 | Box 71 \ 1 scan0181 | |
| Recommending a Hooper body for chassis EAC.1 and querying a memo about the dash width. | 30th Nov 1925 | Box 71 \ 1 scan0182 | |
| Secret memo discussing the design and fitting of a 'Barker' Sports Body on an E.A.C.II chassis. | 3rd Dec 1925 | Box 71 \ 1 scan0183 | |
| Rattles, material issues, and other faults on a car body from coachbuilder Barkers. | 4th Dec 1925 | Box 71 \ 1 scan0184 | |
| Suggestion for mounting a spare wheel on a specific sports car, urging for the matter to be expedited. | 12th May 1925 | Box 71 \ 1 scan0185 | |
| Replacing red fibre taper wedges on Barker Cabriolet doors that have swelled from moisture and jammed. | 1st Jan 1926 | Box 71 \ 1 scan0186 | |
| Progress report on experimental coachwork for various vehicle models. | 9th Dec 1925 | Box 71 \ 1 scan0187 | |
| Procurement and modification of car bodies and subframes for various chassis. | 8th Jan 1926 | Box 71 \ 1 scan0188 | |
| From 'Hs.' to 'O.O.' authorising work on car 44-PK by Sanderson & Holmes Ltd. | 21th Jan 1926 | Box 71 \ 1 scan0189 | |
| Letter to Barker & Co. detailing body modifications for a Torpedo on a Short Chassis 'D' Type. | 29th Jan 1926 | Box 71 \ 1 scan0190 | |
| The concluding page of a typed letter with a handwritten signature. | 8th Feb 1926 | Box 71 \ 1 scan0191 | |
| 8-EX Limousine body's condition after a 14,000-mile test in France. | 8th Feb 1926 | Box 71 \ 1 scan0192 | |
| Faults and required modifications for various vehicle components. | 18th Feb 1926 | Box 71 \ 1 scan0193 | |
| Confirmation of a wire concerning a delay in the readiness of a 'Torpedo'. | 18th Feb 1926 | Box 71 \ 1 scan0194 | |
| Instruction to authorise Messrs. Sanderson & Holmes Ltd. to carry out work on a car as per an attached estimate. | 5th Mar 1926 | Box 71 \ 1 scan0195 | |
| Improvements for rear springs, shock dampers, and tyres on the Phantom model. | 15th May 1926 | Box 71 \ 1 scan0196 | |
| Improvements to car suspension, tyres, and overall ride comfort. | 15th May 1926 | Box 71 \ 1 scan0197 | |
| Letter to Barkers Coachbuilders requesting the release of a body to be temporarily fitted to a chassis. | 27th Mar 1926 | Box 71 \ 1 scan0198 | |
| Non-standard front seat height and a faulty accumulator for car 7-EX. | 27th Mar 1926 | Box 71 \ 1 scan0199 | |
| Internal instruction to authorise work on car 9-EX by Messrs. Sanderson & Holmes Ltd. | 29th Mar 1926 | Box 71 \ 1 scan0200 | |
| Instruction memo authorising work on a car to be carried out by Messrs. Sanderson & Holmes Ltd. | 12th Apr 1926 | Box 71 \ 1 scan0201 | |
| Desirability and urgency of designing a subframe for 40/50 and 20 HP chassis. | 22th Apr 1926 | Box 71 \ 1 scan0202 | |
| Authorising Messrs. Sanderson & Holmes Ltd. to carry out work on car 98-NK. | 29th Apr 1926 | Box 71 \ 1 scan0203 | |
| Report on subframe bodies, discussing the unreliability of current car weight data and requesting standardized weighings. | 12th May 1926 | Box 71 \ 1 scan0204 | |
| Instructing for work to be carried out on car 44-PK by Messrs. Sanderson & Holmes Ltd. | 26th May 1926 | Box 71 \ 1 scan0205 | |
| The unsatisfactory and weak mechanical construction of a Barker body on a 7-EX car. | 29th May 1926 | Box 71 \ 1 scan0206 | |
| Requesting a 20 HP loaner car while car 7-EX undergoes body reconstruction to fix severe flexing and squeaks. | 3rd Jun 1926 | Box 71 \ 1 scan0207 | |
| Potential uses for Staybright steel in vehicle components. | 10th Jun 1926 | Box 71 \ 1 scan0208 | |
| The inspection of a Barker open body, detailing required improvements to the scuttle, instrument board, seating, and floor. | 16th Jun 1926 | Box 71 \ 1 scan0209 | |
| Conclusion of a report on the campaign to lighten the chassis and lower the car's components. | 14th Jun 1926 | Box 71 \ 1 scan0210 | |
| Design proposals for a streamlined sports car body to reduce wind resistance. | 14th Jun 1926 | Box 71 \ 1 scan0211 | |
| Removing a non-standard spare wheel carrier and requesting information on fitting headlamps. | 16th Jun 1926 | Box 71 \ 1 scan0212 | |
| Letter from coachbuilder Barker & Co. regarding the replacement of broken front plates on a Barker Cabriolet and requesting the body number. | 18th Jun 1926 | Box 71 \ 1 scan0213 | |
| Bodywork faults on a 7-EX car, specifically the flexible scuttle, and suggesting engineering solutions. | 18th Jun 1926 | Box 71 \ 1 scan0214 | |
| Weak mechanical construction of the 7-EX body and the need to improve coachbuilding methods. | 22th Jun 1926 | Box 71 \ 1 scan0215 | |
| Seat design considerations for the 'low chassis campaign', including seat height and cushion dimensions. | 22th Jun 1926 | Box 71 \ 1 scan0216 | |
| Continuation of a trial report on the 12-EX, commenting on the exposed rear seats. | 22th Jun 1926 | Box 71 \ 1 scan0217 | |
| Querying a coachbuilder's claim about reinforced subframes on experimental car bodies following a conference. | 22th Jun 1926 | Box 71 \ 1 scan0218 | |
| Offer from coachbuilder Barkers to build a new body for the 7-EX car and whether to provide engineering assistance. | 24th Jun 1926 | Box 71 \ 1 scan0219 | |
| The coachwork of chassis 7-EX, detailing issues with rigidity, scuttle jellying, and suggestions for improvement. | 26th Jun 1926 | Box 71 \ 1 scan0220 | |
| Bodywork issues including scuttles, pillars, and hinges with suggested improvements. | 26th Jun 1926 | Box 71 \ 1 scan0221 | |
| Issues and proposed modifications for car bodywork components such as door straps, head gear and valances. | 26th Jun 1926 | Box 71 \ 1 scan0222 | |
| Drawing showing a cracked arch frame and an alternative suggestion for a rivetted lap joint repair. | 26th Jun 1926 | Box 71 \ 1 scan0223 | |
| Drawing illustrating a welded steel joint reinforced with thin sheet steel gussets. | 26th Jun 1926 | Box 71 \ 1 scan0224 | |
| Diagram illustrating the bending moment and stress on a wood screw joint. | 24th Jun 1926 | Box 71 \ 1 scan0225 | |
| From 'R' regarding an offer from coachbuilder 'Barkers' to build a new body for the 7-EX car and the potential for engineering involvement. | 24th Jun 1926 | Box 71 \ 1 scan0226 | |
| The handover of responsibility for experimental car bodies for various chassis. | 25th Jun 1926 | Box 71 \ 1 scan0227 | |
| Relationship with coachbuilders, including a misunderstanding about a free body replacement and the strategy for sharing improvements. | 26th Jun 1926 | Box 71 \ 1 scan0228 | |
| Page two of a memo discussing the expense of coachwork. | 26th Jun 1926 | Box 71 \ 1 scan0229 | |
| Experimental car bodies, the weakness of a 40/50 subframe, and the plan to build a shama cabriolet. | 29th Jun 1926 | Box 71 \ 1 scan0230 | |
| Company's responsibility for coachbuilder modifications and suggestions for improving bodywork construction. | 1st Jul 1926 | Box 71 \ 1 scan0231 | |
| The loan and availability of the 10-EX sports body car. | 7th Jul 1926 | Box 71 \ 1 scan0232 | |
| Secret and confidential memo discussing an agreement with Hooper's on cost sharing for experimental car bodies. | 27th Jul 1926 | Box 71 \ 1 scan0233 | |
| Instruction memo authorizing work on car 8-EX by Messrs. Sanderson & Holmes Ltd. | 1st Aug 1926 | Box 71 \ 1 scan0234 | |
| Tests conducted to investigate overheating in the interior of Phantom cars due to silencer heat radiation. | 9th Aug 1926 | Box 71 \ 1 scan0235 | |
| Recommendations for using asbestos to insulate floorboards and subframes from silencer heat. | 9th Aug 1926 | Box 71 \ 1 scan0236 | |
| Internal request to send an order for 2 loose covers to Messrs. Sanderson & Holmes Ltd. | 21th Aug 1926 | Box 71 \ 1 scan0237 | |
| Instruction for Messrs. Sanderson & Holmes Ltd. to carry out work on the 10-EX car. | 21th Aug 1926 | Box 71 \ 1 scan0238 | |
| From 'EV' to 'Hs' outlining questions and plans to arrange a programme with coachbuilders for experimental car bodies. | 28th Aug 1926 | Box 71 \ 1 scan0239 | |
| Providing updates and timelines for various experimental chassis and coachwork projects. | 31th Aug 1926 | Box 71 \ 1 scan0240 | |
| Arrangements to send men to Barkers to fit new subframe supports on an 8-EX car after the body is mounted. | 3rd Sep 1926 | Box 71 \ 1 scan0241 | |
| Required chassis modifications for the Sports Phantom 10-EX before being sent to the coachbuilders. | 3rd Sep 1926 | Box 71 \ 1 scan0242 | |
| Specification of coachwork modifications for a Barker 'CJ' Sports Phantom, chassis 10.EX. | 1st Sep 1926 | Box 71 \ 1 scan0243 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. to perform work on car 8-EX as per an attached estimate. | 1st Sep 1926 | Box 71 \ 1 scan0244 | |
| Instruction memo to Messrs. Sanderson & Holmes Ltd. to carry out work on car 44-PK. | 23th Sep 1926 | Box 71 \ 1 scan0245 | |
| Car requirements at West Wittering, the status of chassis 7-EX, and vehicles for sales purposes. | 24th Sep 1926 | Box 71 \ 1 scan0246 | |
| Seeking confirmation regarding the ordering of further car bodies for R. | 7th Oct 1926 | Box 71 \ 1 scan0247 | |
| Improvements for the Phantom & Goshawk models, addressing performance, quality, and carriage work. | 27th Oct 1926 | Box 71 \ 1 scan0248 | |
| Letter to Messrs. Barkers coachbuilders requesting an update on the completion of Mr. Royce's car 7-EX. | 8th Nov 1926 | Box 71 \ 1 scan0249 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. to carry out work on car 8-EX based on an attached estimate. | 8th Nov 1926 | Box 71 \ 1 scan0250 | |
| Final testing of the 7-EX car after completion by coachbuilder Barkers. | 8th Nov 1926 | Box 71 \ 1 scan0251 | |
| Aerodynamic improvements to the Sports Phantom to achieve 100 M.P.H. | 11th Nov 1926 | Box 71 \ 1 scan0252 | |
| Design features and trends on contemporary European cars, including the Sunbeam, Lorraine, Lancia, and Panhard. | 16th Nov 1926 | Box 71 \ 1 scan0253 | |
| Road test report on a Barker-Beatonson All Weather car, detailing issues with the bodywork, performance and handling. | 16th Nov 1926 | Box 71 \ 1 scan0254 | |
| Proposed modifications for a 100 m.p.h. 'Sports Phantom' model using the 10-EX as a testbed. | 17th Nov 1926 | Box 71 \ 1 scan0255 | |
| Discussion about modifications to a car to improve performance, referencing the 10-EX model. | 25th Nov 1926 | Box 71 \ 1 scan0256 | |
| List of required modifications and repairs for an Allweather car before it is sent to France. | 25th Nov 1926 | Box 71 \ 1 scan0257 | |
| Letter to coachbuilder Barker & Co. Ltd. detailing faults found in a car, including a leaking windscreen, squeaks, and inadequate door straps. | 23th Nov 1926 | Box 71 \ 1 scan0258 | |
| Letter detailing car bodywork faults, including noisy head leather flaps and lost keys for secret locks, with accompanying diagrams. | 29th Nov 1926 | Box 71 \ 1 scan0259 | |
| Requesting a proposed scheme for review in order to provide further information. | 29th Nov 1926 | Box 71 \ 1 scan0260 | |
| Coachwork modifications for Mr. Royce's car, 7-EX. | 3rd Dec 1926 | Box 71 \ 1 scan0261 | |
| Proposed body modifications for the Phantom 10-EX experimental car. | 1st Dec 1926 | Box 71 \ 1 scan0262 | |
| Outlining coachwork modifications for an Experimental Phantom vehicle. | 11th Dec 1926 | Box 71 \ 1 scan0263 | |
| Alterations to the windscreen position on the 10-EX Open Touring Car for improved driver comfort and protection. | 18th Dec 1926 | Box 71 \ 1 scan0264 | |
| The fitting of lamps, a petrol gauge, and an engine rev counter to a car. | 18th Dec 1926 | Box 71 \ 1 scan0265 | |
| Proposed alterations to the Sports Phantom 10-EX body to reduce windage for experimental data. | 20th Dec 1926 | Box 71 \ 1 scan0266 | |
| Supplier's (Barkers) body design, its excessive cost, and a criticism of the non-retractable hood. | 30th Dec 1926 | Box 71 \ 1 scan0267 | |
| Commissioning a new car body for experiments, referencing proposals from 'Barkers' and an enclosed blueprint. | 30th Dec 1926 | Box 71 \ 1 scan0268 | |
| High cost estimate from coachbuilder Barkers for modifications to the 10-EX sports body. | 1st Dec 1926 | Box 71 \ 1 scan0269 | |
| Arranging a meeting at Barkers on Olaf Street to discuss the 10-EX car. | 4th Jan 1927 | Box 71 \ 1 scan0270 | |
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