| Description | Date | Identifier | |
| List of features and modifications for the 25-EX model, with notes on parts for the U.S.A. market. | 25th Sep 1930 | Box 19 \ 4 Scan205 | |
| List of proposed and standardised modifications for two cars, including the clutch, floorboards, instrument board, steering wheel, and carburetter. | 25th Sep 1930 | Box 19 \ 4 Scan206 | |
| Failures and testing of experimental Phantom clutches. | 26th Sep 1930 | Box 19 \ 4 Scan207 | |
| The testing of a new clutch material and design modifications. | 26th Sep 1930 | Box 19 \ 4 Scan208 | |
| From Sg. to Hs. confirming a conversation regarding the American Visit. | 30th Sep 1930 | Box 19 \ 4 Scan209 | |
| Poor performance, excessive noise, and proposed modifications for the 25-EX car destined for the USA market. | 1st Oct 1930 | Box 19 \ 4 Scan210 | |
| Disappointing noise and vibration issues with the 25-EX L.H. Car destined for the USA. | 3rd Oct 1930 | Box 19 \ 4 Scan211 | |
| Electrical equipment failures during a 10,000-mile test for a left-hand chassis. | 6th Oct 1930 | Box 19 \ 4 Scan212 | |
| Confirming a sailing date for a visit to America with the 25-EX car. | 13th Oct 1930 | Box 19 \ 4 Scan213 | |
| Letter to Mr. Beaver regarding the pricing, importation and sale of a 20/25 HP chassis in America. | 13th Oct 1930 | Box 19 \ 4 Scan214 | |
| Letter discussing the development of a left-hand drive 20/25 HP car for the American market. | 10th Jun 1930 | Box 19 \ 4 Scan215 | |
| Of a conference in Springfield, Mass., regarding the pricing and supply of chassis. | 10th Jun 1930 | Box 19 \ 4 Scan216 | |
| Letter discussing shipping arrangements to the U.S.A. for car 25-EX and scheduling a pre-departure trial. | 17th Oct 1930 | Box 19 \ 4 Scan217 | |
| Customer feedback from America on the riding qualities of the Phantom and 20/25 models. | 20th Oct 1930 | Box 19 \ 4 Scan218 | |
| Cover letter from Porter B. Chase to Henry J. Fuller enclosing comments on a 25 HP car. | 4th Oct 1930 | Box 19 \ 4 Scan219 | |
| Commentary on the 25 HP English car, covering its appearance and riding qualities. | 4th Oct 1930 | Box 19 \ 4 Scan220 | |
| Evaluation of the car's suspension and a performance comparison against American competitors, noting its weight as a key factor. | 4th Oct 1930 | Box 19 \ 4 Scan221 | |
| Performance comparison report on smoothness, steering, and transmission against competitor vehicles. | 4th Oct 1930 | Box 19 \ 4 Scan222 | |
| Report by Porter B. Chase evaluating the clutch performance and roadability of a vehicle. | 4th Oct 1930 | Box 19 \ 4 Scan223 | |
| Letter discussing the market testing of two 20/25 cars sent to America for propaganda purposes. | 3rd Nov 1930 | Box 19 \ 4 Scan224 | |
| Proposed springing deflection figures for American requirements. | 15th Nov 1930 | Box 19 \ 4 Scan225 | |
| Note discussing customer complaints and responsibility for chassis 25-EX in the U.S.A. | 22th Nov 1930 | Box 19 \ 4 Scan226 | |
| Car contracts, production improvements for the U.S. market, and specific model developments. | 26th Nov 1930 | Box 19 \ 4 Scan227 | |
| Spring flexibility and the logistics of supplying springs for cars sent to America. | 26th Nov 1930 | Box 19 \ 4 Scan228 | |
| Market reception, modifications, and sales strategy for the 25 HP car in the U.S.A. | 1st Dec 1930 | Box 19 \ 4 Scan229 | |
| The general position and market for the 25 HP model in North America. | 1st Dec 1930 | Box 19 \ 4 Scan230 | |
| Note from the U.S.A. detailing performance feedback and test results for the 25-EX car model. | 22th Dec 1930 | Box 19 \ 4 Scan231 | |
| Steering and springing performance, comparing different spring and shock absorber setups. | 22th Dec 1930 | Box 19 \ 4 Scan232 | |
| Note from the USA discussing sales difficulties, customer complaints, and the challenges of upgrading Phantom I owners to Phantom II. | 22th Dec 1930 | Box 19 \ 4 Scan233 | |
| Negotiations over the supply of springs for a Phantom II chassis for the USA market. | 24th Dec 1930 | Box 19 \ 4 Scan234 | |
| Revised chassis specification for the L.S.Phantom II model for America. | 24th Dec 1930 | Box 19 \ 4 Scan235 | |
| Revised specification document for the 40/50 HP Phantom II Chassis. | 9th Dec 1930 | Box 19 \ 4 Scan236 | |
| List of chassis specification revisions and omissions, page 2. | 26th Dec 1930 | Box 19 \ 4 Scan237 | |
| Car production efficiency and technical improvements based on experiences in America. | 26th Dec 1930 | Box 19 \ 4 Scan238 | |
| Clarifying required items not included in the specification for an L.S.Phantom II Chassis for BRAI. | 1st Jan 1931 | Box 19 \ 4 Scan239 | |
| The reorganization of the Springfield Works and U.S. sales strategy following a visit in December 1930. | 1st Jan 1931 | Box 19 \ 4 Scan240 | |
| The challenges and opportunities of selling cars in the U.S. market, comparing prices with American competitors. | 1st Jan 1931 | Box 19 \ 4 Scan241 | |
| Sales strategy, pricing, and manufacturing costs for the U.S.A. market. | 1st Jan 1931 | Box 19 \ 4 Scan242 | |
| Strategy for producing and selling cars, including the Phantom II and a 25HP model, in the American market. | 1st Jan 1931 | Box 19 \ 4 Scan243 | |
| The US sales organization after manufacturing ceased at the Springfield plant. | 1st Jan 1930 | Box 19 \ 4 Scan244 | |
| To Mr. E. Hives discussing cost reduction strategies to increase car sales in America. | 19th Dec 1930 | Box 19 \ 4 Scan245 | |
| Manufacturing costs, pricing, and import duties for the Phantom I and II chassis in the American market. | 9th Sep 1930 | Box 19 \ 4 Scan246 | |
| Business letter discussing customs classification, pricing, market conditions, and cooperation. | 9th Sep 1930 | Box 19 \ 4 Scan247 | |
| Sales challenges and strategy for the American market. | 9th Sep 1930 | Box 19 \ 4 Scan248 | |
| Financial analysis of chassis costs and pricing comparing the English and American markets for the Phantom model. | 9th Sep 1930 | Box 19 \ 4 Scan249 | |
| Five-point strategic proposal for cooperation between the English and American companies to reduce costs, duties, and set new car prices. | 9th Sep 1930 | Box 19 \ 4 Scan250 | |
| Letter from a customs and revenue law firm regarding import duties for automobile parts. | 9th Sep 1930 | Box 19 \ 4 Scan251 | |
| Letter regarding customs classification and import duties for nuts, bolts, and washers. | 9th Sep 1930 | Box 19 \ 4 Scan252 | |
| Letter from a law firm explaining the assessment of import duty based on different valuation methods. | 9th Sep 1930 | Box 19 \ 4 Scan253 | |
| Letter discussing the basis of value for duty on automobile parts imported into the United States, based on the cost of production. | 9th Sep 1930 | Box 19 \ 4 Scan254 | |
| Definition and breakdown of 'cost of material' and 'cost of labour/fabrication' for valuation purposes. | 9th Sep 1930 | Box 19 \ 4 Scan255 | |
| The calculation of costs, general expenses, and profit margins according to legal requirements. | 9th Sep 1930 | Box 19 \ 4 Scan256 | |
| Guidance on calculating and declaring profit margins and production costs for customs purposes when importing automobile components. | 9th Sep 1930 | Box 19 \ 4 Scan257 | |
| Letter regarding an officer's report on imported items and appraisal in New York. | 30th Aug 1930 | Box 19 \ 4 Scan258 | |
| By Mr. Olley regarding the import duty on chassis for the American market. | 30th Aug 1930 | Box 19 \ 4 Scan259 | |
| Import duty implications and cost-saving strategies for shipping chassis as parts versus complete units. | 30th Aug 1930 | Box 19 \ 4 Scan260 | |
| Strategic analysis of parts supply and economies for the Springfield, USA operations. | 30th Aug 1930 | Box 19 \ 4 Scan261 | |
| Pricing strategy, competition, and the future direction towards smaller car models like the 20/25. | 30th Aug 1930 | Box 19 \ 4 Scan262 | |
| Chassis pricing, comparing American luxury cars and proposing cost reductions. | 30th Aug 1930 | Box 19 \ 4 Scan263 | |
| Manufacturing cost breakdown for a Phantom I Chassis from the Springfield factory. | 12th May 1930 | Box 19 \ 4 Scan264 | |
| Manufacturing cost breakdown for a Phantom I Chassis (Springfield) power unit and miscellaneous components. | 12th May 1930 | Box 19 \ 4 Scan265 | |
| Cost and labor breakdown table for vehicle components, page 2. | 12th May 1930 | Box 19 \ 4 Scan266 | |
| Cost analysis breakdown for a Power Unit and other miscellaneous vehicle components, with a summary of material, labor, and burden costs. | 8th Dec 1930 | Box 19 \ 4 Scan267 | |
| Cost calculation document for importing a Twenty-Twenty Five Horse Power Left-Hand Chassis Power Unit. | 8th Dec 1930 | Box 19 \ 4 Scan268 | |
| Schedule detailing the components of the Twenty-Five Horse Power Unit. | 8th Dec 1930 | Box 19 \ 4 Scan269 | |
| Of conversation regarding complaints and repairs for recent 20/25 HP car deliveries. | 8th Dec 1930 | Box 19 \ 4 Scan270 | |
| Revised specification document for the 40/50 HP Phantom II chassis. | 9th Dec 1930 | Box 19 \ 4 Scan271 | |
| List of chassis specification changes and omissions, page 2. | 1st Jan 1930 | Box 19 \ 4 Scan272 | |
| Service complaints, overheating, and coil failures for 25 HP & Phantom II cars in the U.S.A. | 2nd Jan 1931 | Box 19 \ 4 Scan273 | |
| Feedback and criticisms on the 25-EX car regarding improvements, luggage provision, and dynamo output. | 2nd Jan 1931 | Box 19 \ 4 Scan274 | |
| Use of American Delco generators and automatic charging devices for a 25 HP car. | 2nd Jan 1931 | Box 19 \ 4 Scan275 | |
| List of automotive parts ordered from the U.S.A for testing and evaluation. | 2nd Jan 1931 | Box 19 \ 4 Scan276 | |
| Covering instruction regarding the specification for a Left Hand Phantom chassis for R.R.A.I. | 2nd Jan 1931 | Box 19 \ 4 Scan277 | |
| Contract and works order detailing the specifications for 75 Phantom II Left Hand Drive 'N' series chassis for Rolls-Royce of America. | 18th Feb 1930 | Box 19 \ 4 Scan278 | |
| List of instructions detailing parts to be omitted or not required for a vehicle build, this is page 2 of a document. | 3rd Jan 1931 | Box 19 \ 4 Scan279 | |
| Specifications for the L.H.Phantom II Chassis, including lights, locks, and tool kit. | 3rd Jan 1931 | Box 19 \ 4 Scan280 | |
| Observations on cost-saving, design, and production methods in U.S. motor factories. | 5th Jan 1931 | Box 19 \ 4 Scan281 | |
| Production costs and competitor analysis of American cars, focusing on shock absorbers, steering, and suspension systems. | 6th Jan 1931 | Box 19 \ 4 Scan282 | |
| Night letter cable requesting a Delco generator and a sample of a Delco twin cylinder shock absorber. | 6th Jan 1931 | Box 19 \ 4 Scan283 | |
| Continuation of a memo regarding an absorber and other parts sent to Cadillac. | 6th Jan 1931 | Box 19 \ 4 Scan284 | |
| Difficulties of competing in the American car market and the potential strategy for exporting chassis. | 6th Jan 1931 | Box 19 \ 4 Scan285 | |
| Service and support strategy for Derby-built cars intended for sale in the U.S.A. | 7th Jan 1931 | Box 19 \ 4 Scan286 | |
| Telegram received by telephone concerning the dispatch of samples and delivery of requested items. | 8th Jan 1931 | Box 19 \ 4 Scan287 | |
| The service of Derby-built cars in the USA. | 8th Jan 1931 | Box 19 \ 4 Scan288 | |
| Letter regarding the need for trained mechanics in America to service Derby-built cars, specifically the Phantom II and 20/25 chassis. | 8th Jan 1931 | Box 19 \ 4 Scan289 | |
| Letter regarding the arrangements for Rolls-Royce of America Inc. to become retailers of Derby-made chassis. | 8th Jan 1931 | Box 19 \ 4 Scan290 | |
| Photograph of a 20/25 HP chassis fitted with a Brewster body and dummy shutters, and photographs of a wooden subframe for Phantom II cars. | 9th Jan 1931 | Box 19 \ 4 Scan291 | |
| Despatch of the first two left-hand drive chassis to America, and the need for an approved specification. | 19th Jan 1931 | Box 19 \ 4 Scan292 | |
| Need for blueprints of part lists and arrangement drawings for the R.H.Phantom II model for use at service stations. | 23th Jan 1931 | Box 19 \ 4 Scan293 | |
| Request for assistance in sourcing salt-cooled valves and 'Kelmit' lined bearings from a contact in the USA. | 25th Jan 1930 | Box 19 \ 4 Scan294 | |
| Letter to Mr. Ross requesting a recommendation for sourcing parts based on the latest developments. | 25th Jan 1931 | Box 19 \ 4 Scan295 | |
| Arrangement drawings and LOP's, confirming receipt of a previous document and advising that action is on hold. | 26th Jan 1931 | Box 19 \ 4 Scan296 | |
| Letter to Rolls-Royce of America concerning the testing and fitting of Delco shock absorbers. | 26th Jan 1931 | Box 19 \ 4 Scan297 | |
| Outstanding items and necessary improvements for Left Hand Phantom II chassis before dispatch. | 10th Feb 1931 | Box 19 \ 4 Scan298 | |
| Issues with shock absorbers and performance for chassis being sent to America, comparing Phantom I and Phantom II models. | 10th Aug 1931 | Box 19 \ 4 Scan299 | |
| Anticipated complaints regarding left-hand drive cars being sent to the U.S.A., focusing on shock absorbers, noise, and performance. | 10th Feb 1931 | Box 19 \ 4 Scan300 | |
| Page about anticipating probable complaints before despatching cars. | 10th Feb 1931 | Box 19 \ 4 Scan301 | |
| Servicing of Derby-built cars in America and a suggestion to send someone to study Phantom II cars. | 16th Feb 1931 | Box 19 \ 4 Scan302 | |
| Letter from Rolls-Royce America to Rolls-Royce UK regarding the servicing of Derby-built cars in the USA. | 2nd Feb 1931 | Box 19 \ 4 Scan303 | |
| Typed copy of a letter discussing the necessity of a visit to Derby by the head of the Maintenance Department. | 18th Feb 1931 | Box 19 \ 4 Scan304 | |
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