| Description | Date | Identifier | |
| Instructing Sanderson & Holmes Ltd. to carry out work on a car as per an attached estimate. | 22th Jun 1926 | Box 5 \ 2 02-page044 | |
| A conference with coachbuilders regarding the reinforcement of subframes on experimental bodies. | 2nd Jun 1926 | Box 5 \ 2 02-page045 | |
| Covering letter regarding a 10,000 mile test on a 20 HP vehicle, forwarding a letter sent to Captain Pelham-Clinton of Messrs Hooper's. | 24th Jun 1925 | Box 5 \ 2 02-page046 | |
| Letter to a coachbuilder proposing a cost-sharing arrangement for a 10,000-mile body test. | 24th Jun 1926 | Box 5 \ 2 02-page047 | |
| Letter to Captain Pelham-Clinton regarding collaborative testing of car bodies and components with other coachbuilders. | 24th Jun 1926 | Box 5 \ 2 02-page048 | |
| Confirming the handover of responsibility for experimental car bodies. | 25th Jun 1926 | Box 5 \ 2 02-page049 | |
| Bodywork and seating for 20 HP Chassis No. 1644. | 1st Jul 1926 | Box 5 \ 2 02-page050 | |
| Instruction to Messrs. Sanderson & Holes Ltd. to carry out work on chassis 9-G-111. | 14th Jul 1926 | Box 5 \ 2 02-page051 | |
| Proposal for Hoopers to supply two experimental car bodies and designing fixed head cabriolets on subframes. | 1st Jul 1926 | Box 5 \ 2 02-page052 | |
| Internal instruction to authorise work by Sanderson & Holmes Ltd. on car 11-G-3. | 1st Aug 1926 | Box 5 \ 2 02-page053 | |
| Requesting updates on various experimental coachwork projects to arrange a programme with coachbuilders. | 28th Aug 1926 | Box 5 \ 2 02-page054 | |
| Instructing for work to be carried out on chassis 10-G-3 by Sanderson & Holmes Ltd. | 20th Sep 1926 | Box 5 \ 2 02-page055 | |
| Instructing work to be carried out on car 11-G-3 by Sanderson & Holmes Ltd. | 23th Sep 1926 | Box 5 \ 2 02-page056 | |
| Horsepower and quality improvements for Phantom & Goshawk models. | 27th Oct 1926 | Box 5 \ 2 02-page057 | |
| Specification of coachwork and mounting for a Hooper Saloon Cabriolet. | 27th Oct 1926 | Box 5 \ 2 02-page058 | |
| Specifications for floor coverings, scuttle isolation, battery mounting, and other vehicle build items. | 8th Nov 1926 | Box 5 \ 2 02-page059 | |
| Request to the Sales department regarding a light, narrow, and silent saloon body for a 20 HP chassis. | 8th Nov 1926 | Box 5 \ 2 02-page060 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. to carry out work on a car based on an attached estimate. | 29th Nov 1926 | Box 5 \ 2 02-page061 | |
| Confidential memo discussing the development of light saloon bodies for India, comparing 'Weyman' and 'Barkerlite' constructions, and mentioning a chassis for the Prince of Wales. | 26th Nov 1926 | Box 5 \ 2 02-page062 | |
| Testing of experimental 'Barkerlite' car bodies and the associated financial risk. | 30th Nov 1926 | Box 5 \ 2 02-page063 | |
| Disagreements on body weight, axle ratios, accessories, and proposed engine modifications for the 20 HP model. | 3rd Dec 1926 | Box 5 \ 2 02-page064 | |
| Continued note on a light 20 HP chassis, mentioning vertical louvres and front axle control modifications. | 10th Dec 1926 | Box 5 \ 2 02-page065 | |
| 20 HP model's body weight, a new Barkerlite body, customer-fitted fenders, and crankshaft experiments. | 10th Dec 1926 | Box 5 \ 2 02-page066 | |
| Preferences for car coachwork, specifically a light saloon and a high-speed open Phantom. | 13th Dec 1926 | Box 5 \ 2 02-page067 | |
| The procurement of a discounted experimental saloon body for India from Barker & Co. | 14th Dec 1926 | Box 5 \ 2 02-page068 | |
| Instructions for Barker & Co. regarding a light saloon body for the 'Twenty' chassis for experimental use. | 14th Dec 1926 | Box 5 \ 2 02-page069 | |
| Letter from coachbuilder Hooper & Co regarding a revised sub-frame forward support for a 20 HP Cab de Ville. | 17th Dec 1926 | Box 5 \ 2 02-page070 | |
| Advantages of fixed roof car bodies over convertible heads for luxury cars. | 22th Dec 1926 | Box 5 \ 2 02-page071 | |
| Recommendation to keep engineers involved with the development of an experimental Barkerlite body for a 20 HP car. | 29th Dec 1926 | Box 5 \ 2 02-page072 | |
| Purchase of a Barkerlite Saloon by the Sales department and its impact on experimental car development. | 23th Dec 1926 | Box 5 \ 2 02-page073 | |
| Barkerlite body for an experimental 20HP vehicle, recommending engineering input. | 29th Dec 1926 | Box 5 \ 2 02-page074 | |
| The purchase of a Barkerlite Saloon for a 20 HP car and its unsuitability for an experimental project. | 23th Dec 1926 | Box 5 \ 2 02-page075 | |
| Letter to Messrs. Hooper & Co. Ltd. regarding the delivery of modified subframe pieces for a 20 HP Cabriolet de Ville. | 31th Dec 1926 | Box 5 \ 2 02-page076 | |
| Bodywork alterations for 20 HP and Phantom (EAC-V11) models at Hoopers. | 3rd Jan 1927 | Box 5 \ 2 02-page077 | |
| Letter from coachbuilder Hooper & Co. requesting scuttle stiffening plates for an Experimental 20HP Rolls-Royce Cabriolet. | 27th Jan 1927 | Box 5 \ 2 02-page078 | |
| Importance of weight reduction in 40/50 and 20 HP cars for performance, cost, legal compliance, and handling. | 1st Feb 1927 | Box 5 \ 2 02-page079 | |
| The merits of fabric-covered car bodies versus highly polished finishes, considering appearance and cost. | 1st Feb 1927 | Box 5 \ 2 02-page080 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. to carry out work on a car as per an attached estimate. | 1st Feb 1927 | Box 5 \ 2 02-page081 | |
| Letter from coachbuilders Hooper & Co. requesting the despatch of scuttle stiffening plates and a frame. | 7th Feb 1927 | Box 5 \ 2 02-page082 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. to carry out work on the 11-G-3 experimental car. | 16th Feb 1927 | Box 5 \ 2 02-page083 | |
| Telegram to the Experimental Department confirming a car body will be ready on a Thursday afternoon. | 27th Mar 1929 | Box 5 \ 2 02-page084 | |
| Letter from coachbuilders Hooper & Co. regarding difficulty fitting scuttle stiffener plates. | 10th Mar 1927 | Box 5 \ 2 02-page085 | |
| Memorandum with diagrams comparing a multi-piece arch frame to a single-piece ash framing, questioning a potential weakness. | 28th Mar 1927 | Box 5 \ 2 02-page086 | |
| Completion of a Saloon Cab de Ville body for India and options for sourcing a suitable chassis. | 28th Mar 1927 | Box 5 \ 2 02-page087 | |
| Quality of coachwork, comparing English bodies unfavourably with French ones. | 29th Mar 1927 | Box 5 \ 2 02-page088 | |
| Comparing English and French coachbuilding quality, construction, and pricing following a 10,000-mile test of a Barker body. | 1st Apr 1927 | Box 5 \ 2 02-page089 | |
| English vs. French coachwork, chassis trials, seating arrangements, and tyre specifications for various models. | 4th Apr 1927 | Box 5 \ 2 02-page090 | |
| Need for coachwork quality to match the high standard of the chassis. | 12th Apr 1927 | Box 5 \ 2 02-page091 | |
| Continued discussion on improving body and fitting standards, contrasting tolerated coachwork faults with chassis standards. | 3rd May 1927 | Box 5 \ 2 02-page092 | |
| Requirements for a 20 HP reference car, specifying preferences for body type and seating. | 3rd May 1927 | Box 5 \ 2 02-page093 | |
| To instruct Messrs. Sanderson & Holmes to carry out work on car 11-G-111. | 14th May 1927 | Box 5 \ 2 02-page094 | |
| The final approval and payment for a Hooper Saloon Cab de Ville body destined for India. | 21th May 1927 | Box 5 \ 2 02-page095 | |
| Inquiry about the paint colour and completion time for a 20 HP Hooper cabriolet body for Mr. Royce. | 23th May 1927 | Box 5 \ 2 02-page096 | |
| Leather sample for upholstering the body of a 20 HP car for Mr. Joyce. | 25th May 1927 | Box 5 \ 2 02-page097 | |
| The paint scheme and a request for agreement on the proposed upholstery for a 20 HP car. | 26th May 1927 | Box 5 \ 2 02-page098 | |
| Finishing instructions for a 20HP car by coachbuilder Hooper's. | 27th May 1927 | Box 5 \ 2 02-page099 | |
| Preference for grey and black painting over the proposed upholstery. | 30th May 1927 | Box 5 \ 2 02-page100 | |
| Painting and interior finishing instructions for a Hooper 20 HP body. | 30th May 1927 | Box 5 \ 2 02-page101 | |
| Forwarding instructions from 'R' about painting a 20 HP car body if it has not already been done. | 1st May 1927 | Box 5 \ 2 02-page102 | |
| Paint and upholstery preferences for a 20 HP vehicle. | 30th May 1927 | Box 5 \ 2 02-page103 | |
| Cost and logistics of changing a car body's paint colour. | 2nd Jun 1937 | Box 5 \ 2 02-page104 | |
| Internal instruction to authorise work on car 10-G-111 by Messrs. Sanderson & Holmes Ltd. | 23th Jun 1927 | Box 5 \ 2 02-page105 | |
| Instruction to arrange for work to be carried out on car 11-G-111 by Sanderson & Holmes Ltd. | 1st Jul 1927 | Box 5 \ 2 02-page106 | |
| Advocating for 19-inch wheels on the 20 HP model to improve its appearance. | 9th Jul 1927 | Box 5 \ 2 02-page107 | |
| 20 HP car with a Barker Landaulet body, modern chassis, and 4-wheel brakes, intended for sale. | 12th Jul 1927 | Box 5 \ 2 02-page108 | |
| Internal instruction to authorise work on car 11-G-111 by Sanderson & Holmes Ltd. as per an attached estimate. | 8th Aug 1927 | Box 5 \ 2 02-page109 | |
| Chasing the delivery of experimental car chassis 10-G-111, as requested by Mr. Royce. | 15th Aug 1927 | Box 5 \ 2 02-page110 | |
| Door rattles on a Barker cabriolet de ville, chassis 10-G-111. | 18th Aug 1927 | Box 5 \ 2 02-page111 | |
| The unavailability of a demounted car body from vehicle 10-G-111 for examination. | 1st Aug 1927 | Box 5 \ 2 02-page112 | |
| Arranging the collection of chassis 10-G-111 and the fitting of various parts. | 23th Aug 1927 | Box 5 \ 2 02-page113 | |
| Proposed improvements for the 20 HP model, focusing on steering, tyre size, and bodywork. | 1st Sep 1927 | Box 5 \ 2 02-page114 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. to carry out work on car 9-G-111 as per an attached estimate. | 9th Sep 1927 | Box 5 \ 2 02-page115 | |
| Status and potential return of a high-compression 20 HP car with a poor Windover body. | 7th Sep 1927 | Box 5 \ 2 02-page116 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. to supply curtain pegs for the 11-G-3 experimental car. | 19th Sep 1927 | Box 5 \ 2 02-page117 | |
| Deletion of 'B' steering and the standardisation of a wider dash for a 20 HP car. | 19th Sep 1927 | Box 5 \ 2 02-page118 | |
| Design specifications for a new car body for the 'India 3' model, including suggestions for a closed body and a wider dash. | 21th Sep 1927 | Box 5 \ 2 02-page119 | |
| Potential modifications for Mr. Geoffery Smith's car, covering the chassis, wheels, and body lines. | 31th Oct 1927 | Box 5 \ 2 02-page120 | |
| List of special customisation requests for a 20 HP car for the Managing Editor of 'The Autocar'. | 24th Oct 1927 | Box 5 \ 2 02-page121 | |
| Inquiry to Thrupp & Maberly Ltd. for photographs of a 2-seater body for a 20 HP chassis. | 22th Nov 1927 | Box 5 \ 2 02-page122 | |
| Problems of high, heavy, and wide car bodies and proposals for weight and height reduction. | 28th Nov 1927 | Box 5 \ 2 02-page123 | |
| Requesting confirmation of rolling stock items and a car for stocktaking purposes. | 30th Nov 1927 | Box 5 \ 2 02-page124 | |
| The sale of a Lorraine Dietrich car and the status of various car bodies. | 30th Nov 1927 | Box 5 \ 2 02-page125 | |
| 10,000-mile test of a fabric-covered Weymann body on a 20 HP car and sourcing an ideal body for a 40/50 HP model. | 1st Dec 1927 | Box 5 \ 2 02-page126 | |
| Vehicle dynamics, engine comparisons with a Stutz, and design questions about Phantom hydraulics and Chrysler engine mounts. | 1st Dec 1927 | Box 5 \ 2 02-page127 | |
| Calculation of the moment of inertia (k²) for car model 11-G-111 with a landaulet body by the swinging method. | 1st Dec 1927 | Box 5 \ 2 02-page128 | |
| Page of calculations and a diagram relating to vehicle weight distribution and center of gravity. | 1st Dec 1927 | Box 5 \ 2 02-page129 | |
| Page of engineering calculations involving multiple variables and units of square feet. | 1st Dec 1927 | Box 5 \ 2 02-page130 | |
| Query regarding the scrap value of an old body from Chassis No. 10-G-3. | 1st Dec 1927 | Box 5 \ 2 02-page131 | |
| Body requirements for a 10,000-mile test, focusing on chassis rigidity, engine mounting, and body construction methods. | 12th Dec 1927 | Box 5 \ 2 02-page132 | |
| Instruction memo to arrange for work on a 20 HP car by Sanderson & Holmes Ltd. | 12th Dec 1927 | Box 5 \ 2 02-page133 | |
| Use of rubber engine mountings to solve vibration and rattle problems in 20 HP cars. | 29th Dec 1927 | Box 5 \ 2 02-page134 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. to carry out work on two 20 HP cars. | 3rd Jan 1928 | Box 5 \ 2 02-page135 | |
| The trial of a 'Barkerlite' car, detailing issues with body resonance and experimental alterations. | 2nd Feb 1928 | Box 5 \ 2 02-page136 | |
| Letter regarding the return of a car fitted with experimental parts and its accompanying standard components. | 3rd Feb 1928 | Box 5 \ 2 02-page137 | |
| Request for official orders for work completed by Sanderson & Holmes Ltd. | 3rd Feb 1928 | Box 5 \ 2 02-page138 | |
| Customer's request for a low and smart enclosed Sports saloon for a 20 HP car. | 23th Feb 1928 | Box 5 \ 2 02-page139 | |
| Letter discussing the postponement of building special experimental bodies, specifically a Sports Saloon for India. | 3rd Mar 1928 | Box 5 \ 2 02-page140 | |
| Note concerning the subframe design for Super-Sports models and making up for wasted time on Sports Bodies. | 3rd Mar 1929 | Box 5 \ 2 02-page141 | |
| Instruction to Messrs. Anderson & Holmes Ltd. to carry out work on an experimental car as per the attached estimate. | 3rd Mar 1929 | Box 5 \ 2 02-page142 | |
| Internal instruction to authorise Messrs. Sanderson & Holmes Ltd. to carry out work on a car as per an attached estimate. | 23th Apr 1928 | Box 5 \ 2 02-page143 | |
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