| Description | Date | Identifier | |
| Two cablegrams received regarding threaded shackles and Delco dampers. | 8th Dec 1930 | Box 11 \ 3 03-page322 | |
| Note received from the U.S.A. regarding sales difficulties, service charges, and customer complaints for Phantom I and Phantom II cars. | 22th Dec 1930 | Box 11 \ 3 03-page323 | |
| Note from the U.S.A. detailing test results and criticisms of the 25-EX model, focusing on acceleration and steering. | 22th Dec 1930 | Box 11 \ 3 03-page324 | |
| Report comparing suspension and steering characteristics, detailing issues and potential improvements. | 1st Jan 1931 | Box 11 \ 3 03-page325 | |
| The restructuring of the Springfield Works and the American sales strategy following a visit in December 1930. | 1st Jan 1931 | Box 11 \ 3 03-page326 | |
| The challenges of selling cars in the U.S. market, focusing on price competition and model strategy. | 1st Jan 1931 | Box 11 \ 3 03-page327 | |
| General Motors' interest in hiring staff to evaluate the qualitative 'niceness' of a car. | 9th Sep 1930 | Box 11 \ 3 03-page328 | |
| Letter from a customs and revenue law firm regarding tariffs and duties on importing automobile parts. | 9th Sep 1930 | Box 11 \ 3 03-page329 | |
| Page 2 of a letter concerning customs tariffs and classification for imported parts. | 9th Sep 1930 | Box 11 \ 3 03-page330 | |
| Letter from a customs and revenue law firm explaining the basis for assessing import duties under the new tariff act. | 9th Sep 1930 | Box 11 \ 3 03-page331 | |
| Legal opinion on the valuation basis for import duty on automobile parts into the United States. | 9th Sep 1930 | Box 11 \ 3 03-page332 | |
| Defining the calculation of material and fabrication costs for imported articles. | 9th Sep 1930 | Box 11 \ 3 03-page333 | |
| The calculation of costs, general expenses, and profit for manufacturing and importing parts, according to legal requirements. | 9th Sep 1930 | Box 11 \ 3 03-page334 | |
| Profit calculations, customs agreements, and import procedures for automobiles and parts. | 9th Sep 1930 | Box 11 \ 3 03-page335 | |
| Letter discussing the role of an officer, Mr. Wait, in appraising items for import in New York. | 30th Aug 1930 | Box 11 \ 3 03-page336 | |
| By Mr. Olley regarding the importation of chassis and the associated duties. | 30th Aug 1930 | Box 11 \ 3 03-page337 | |
| Strategies to reduce import duty costs on chassis by importing parts separately. | 30th Aug 1930 | Box 11 \ 3 03-page338 | |
| Parts sourcing and economies for the Springfield factory and the American market. | 30th Aug 1930 | Box 11 \ 3 03-page339 | |
| Future car pricing strategy, competition, and the potential for a smaller model. | 30th Aug 1930 | Box 11 \ 3 03-page340 | |
| Chassis pricing, comparing costs to American luxury cars like Cadillac and highlighting the need for cost reduction. | 30th Aug 1930 | Box 11 \ 3 03-page341 | |
| Manufacturing cost breakdown for the Phantom I Chassis (Springfield). | 12th May 1930 | Box 11 \ 3 03-page342 | |
| Manufacturing cost breakdown for a Phantom I Chassis (Springfield). | 12th May 1930 | Box 11 \ 3 03-page343 | |
| Cost breakdown sheet for various car components, detailing material and labor expenses. | 12th May 1930 | Box 11 \ 3 03-page344 | |
| Cost breakdown sheet for a power unit and miscellaneous chassis components. | 8th Dec 1930 | Box 11 \ 3 03-page345 | |
| Cost analysis for importing a 20/25 HP chassis power unit to America. | 8th Dec 1930 | Box 11 \ 3 03-page346 | |
| List of components for a Twenty-Five Horse Power Unit. | 2nd Jan 1931 | Box 11 \ 3 03-page347 | |
| Service complaints and technical issues with 25 HP & Phantom II cars in the U.S.A. | 2nd Jan 1931 | Box 11 \ 3 03-page348 | |
| Feedback on the 25-HX model concerning improvements, luggage provision, and dynamo output. | 2nd Jan 1931 | Box 11 \ 3 03-page349 | |
| Fitting American Delco generators and the merits of thermostat controls for a 25 HP car. | 2nd Jan 1931 | Box 11 \ 3 03-page350 | |
| Listing American automotive parts ordered for testing and a request for a new generator. | 2nd Jan 1931 | Box 11 \ 3 03-page351 | |
| Sales strategy for the U.S. market, focusing on pricing, production costs, and import duties. | 1st Jan 1931 | Box 11 \ 3 03-page352 | |
| Strategies for selling cars in the U.S.A., focusing on production costs, import duties, and the development of a left-hand drive 25 HP model. | 1st Jan 1931 | Box 11 \ 3 03-page353 | |
| The sales organisation in North America following the cessation of manufacturing in Springfield. | 1st Jan 1930 | Box 11 \ 3 03-page354 | |
| To a Mr. Beaver discussing the problems of selling cars in the American market, including pricing, competition, and future profitability. | 1st Jan 1930 | Box 11 \ 3 03-page355 | |
| Financial analysis of the costs and pricing for selling Phantom II chassis in the United States. | 1st Jan 1930 | Box 11 \ 3 03-page356 | |
| Strategy document outlining cost reductions, pricing, and operational plans involving the American and English companies. | 1st Jan 1930 | Box 11 \ 3 03-page357 | |
| Reference note on a separator page. | 30th Jun 1930 | Box 11 \ 3 03-page358 | |
| Graph plotting acceleration curves in M.P.H. against seconds for model 24EX. | 30th Jun 1930 | Box 11 \ 3 03-page359 | |
| Issues and modifications for a petrol pump, speedometer drive, and flywheel & clutch. | 18th May 1931 | Box 11 \ 3 03-page360 | |
| List of units and modifications for testing on the Phantom 25-EX model in France. | 18th May 1931 | Box 11 \ 3 03-page361 | |
| Car specifications, testing in France, and required modifications for car model 25-EX. | 19th May 1931 | Box 11 \ 3 03-page362 | |
| Proposal for a 10,000-mile Phantom II test in France to evaluate engine mounting and address customer complaints of 'boom'. | 20th May 1931 | Box 11 \ 3 03-page363 | |
| Proposed modifications and testing of various car components. | 20th May 1931 | Box 11 \ 3 03-page364 | |
| Proposed modifications and tests for various car components, including springs, dynamo, and exhaust systems. | 1st May 1931 | Box 11 \ 3 03-page365 | |
| Proposed modifications for the P. 2. 10,000 miles trial, including suspension and engine flywheel changes. | 22th May 1931 | Box 11 \ 3 03-page366 | |
| Methods to reduce engine noise and vibration, comparing different approaches and considering further experiments. | 17th Jun 1931 | Box 11 \ 3 03-page367 | |
| Request for an advance of 1000 francs to cover expenses for transporting the 25-EX car to Paris. | 17th Jun 1931 | Box 11 \ 3 03-page368 | |
| Letter to arrange the customs declaration for a spare radiator being taken to France for a Phantom II car. | 22th Jun 1931 | Box 11 \ 3 03-page369 | |
| Road test report from Chateauroux, France, detailing engine, vibration, steering and radiator issues. | 27th Jun 1931 | Box 11 \ 3 03-page370 | |
| Response letter discussing radiator temperature, shock absorbers, and petrol detonation issues in France. | 29th Jun 1931 | Box 11 \ 3 03-page371 | |
| The cause and potential remedy for loose shock damper levers. | 29th Jun 1931 | Box 11 \ 3 03-page372 | |
| Test report detailing bonnet rattle fixes, water temperature data, and issues with boiling petrol and steering. | 29th Jun 1931 | Box 11 \ 3 03-page373 | |
| Test report on engine temperature with various bonnet shutter configurations. | 30th Jun 1931 | Box 11 \ 3 03-page374 | |
| Road tests to eliminate bonnet knocks with Dillmond engine mounting. | 1st Jul 1931 | Box 11 \ 3 03-page375 | |
| Test report analyzing bonnet and radiator movement and noise during road tests under various conditions. | 1st Jul 1931 | Box 11 \ 3 03-page376 | |
| Test report on radiator and bonnet movement, noting panel displacement at 60 MPH. | 1st Jul 1931 | Box 11 \ 3 03-page377 | |
| Tests conducted to investigate and resolve bonnet knocking issues. | 1st Jul 1931 | Box 11 \ 3 03-page378 | |
| Page 2 of a test report detailing experiments on radiator and bonnet movement and their results. | 1st Jul 1931 | Box 11 \ 3 03-page379 | |
| Test report detailing modifications and results for reducing bonnet and radiator movement. | 1st Jul 1931 | Box 11 \ 3 03-page380 | |
| Conclusions from a test on radiator mounting, connections, and bonnet fitting. | 1st Jul 1931 | Box 11 \ 3 03-page381 | |
| Letter discussing temperature tests, bonnet shutters, shock dampers, and petrol quality for an experimental vehicle. | 1st Jul 1931 | Box 11 \ 3 03-page382 | |
| Road test findings regarding damper knocks and a boiling A.C. petrol pump. | 2nd Jul 1931 | Box 11 \ 3 03-page383 | |
| Test report on the effects of various loads on jellying, torque reaction, booms, and steering. | 8th Jul 1931 | Box 11 \ 3 03-page384 | |
| Effects of adjusting torque reaction dampers on vehicle oscillations, steering, and noise. | 3rd Jul 1931 | Box 11 \ 3 03-page385 | |
| Correcting a previous report on temperatures and providing an updated total mileage. | 3rd Jul 1931 | Box 11 \ 3 03-page386 | |
| Letter discussing test results and design considerations for bonnet mountings and radiators. | 3rd Jul 1931 | Box 11 \ 3 03-page387 | |
| Test report on torque reaction damper settings for the Diamond Mounting Phantom II on model 25-EX. | 4th Jul 1931 | Box 11 \ 3 03-page388 | |
| Test report detailing vehicle performance issues such as vibrations, jellying, and booms under different damper settings. | 4th Jul 1931 | Box 11 \ 3 03-page389 | |
| Test report discussing engine mounting, torque reaction dampers, and vibration issues on experimental cars 24-EX and 25-EX. | 4th Jul 1931 | Box 11 \ 3 03-page390 | |
| Test report on jellying, torque reaction, booms, and steering effects caused by different loads on front torque reaction dampers. | 4th Jul 1931 | Box 11 \ 3 03-page391 | |
| The second test of a vehicle, detailing observations on torque reaction, booms, and steering stability. | 4th Jul 1931 | Box 11 \ 3 03-page392 | |
| Test report detailing observations on torque reaction, booms, wing jellying, and steering. | 4th Jul 1931 | Box 11 \ 3 03-page393 | |
| The 4th test, detailing observations on torque reaction, booms, steering, and wing jellying. | 4th Jul 1931 | Box 11 \ 3 03-page394 | |
| The results of the 5th test, evaluating torque reaction, booms, and steering. | 4th Jul 1931 | Box 11 \ 3 03-page395 | |
| The settings for torque reaction dampers and engine detonation trials using different qualities of petrol. | 4th Jul 1931 | Box 11 \ 3 03-page396 | |
| Letter concerning the testing of a small tube radiator and preparation for a 10,000-mile run. | 6th Jul 1931 | Box 11 \ 3 03-page397 | |
| Requesting the status and daily reports for car 25-EX undergoing a 10,000-mile test in France. | 6th Jul 1931 | Box 11 \ 3 03-page398 | |
| Results of a car test in France, covering mileage, torque reaction dampers, and radiator performance. | 6th Jul 1931 | Box 11 \ 3 03-page399 | |
| Post Office telegraph requesting a front silencer be sent to Derby. | 7th Jul 1931 | Box 11 \ 3 03-page400 | |
| Report from France on vehicle tests concerning bonnet knocks, radiator control, and petrol brand performance. | 6th Jul 1931 | Box 11 \ 3 03-page401 | |
| Acceleration test results for vehicle 25-EX, showing times for various speed increments. | 6th Jul 1931 | Box 11 \ 3 03-page402 | |
| Response to a daily report discussing experimental tests on suspension, shock absorbers, brakes, and cooling systems. | 7th Jul 1931 | Box 11 \ 3 03-page403 | |
| Letter regarding the reproduction of experimental radiator suspension tests in Derby and a request for figures on a small hexagon tube radiator. | 7th Jul 1931 | Box 11 \ 3 03-page404 | |
| Report investigating the cause for the loss of clearance in exhaust valves. | 8th Jul 1931 | Box 11 \ 3 03-page405 | |
| Cracked front exhaust box, with a hand-drawn diagram illustrating the failure. | 8th Jul 1931 | Box 11 \ 3 03-page406 | |
| Cracked front exhaust box on car 25-EX in France. | 8th Jul 1931 | Box 11 \ 3 03-page407 | |
| Letter concerning the failure of a mild steel front exhaust box and practical considerations for bonnet fitting. | 8th Jul 1931 | Box 11 \ 3 03-page408 | |
| Daily log sheet tracking valve clearance measurements for a six-cylinder engine. | 8th Jul 1931 | Box 11 \ 3 03-page409 | |
| Investigation report on the cause of loss of clearance in exhaust valves. | 8th Jul 1931 | Box 11 \ 3 03-page410 | |
| Daily log of valve clearance measurements for a six-cylinder engine. | 8th Jul 1931 | Box 11 \ 3 03-page411 | |
| Investigation into the cause of continued loss of clearance in the exhaust valves. | 8th Jul 1931 | Box 11 \ 3 03-page412 | |
| Daily log sheet tracking valve clearance measurements for a six-cylinder engine. | 8th Jul 1931 | Box 11 \ 3 03-page413 | |
| Investigation into the loss of clearance in exhaust valves, identifying insufficient cooling and tulip head stretching as the cause. | 8th Jul 1931 | Box 11 \ 3 03-page414 | |
| Daily log of valve clearance measurements for a six-cylinder engine. | 8th Jul 1931 | Box 11 \ 3 03-page415 | |
| The investigation into the loss of clearance in exhaust valves, attributing the fault to insufficient cooling and cylinder head design. | 8th Jul 1931 | Box 11 \ 3 03-page416 | |
| Daily log of valve clearance measurements for a six-cylinder engine. | 8th Jul 1931 | Box 11 \ 3 03-page417 | |
| Investigation into the loss of clearance in exhaust valves. | 8th Jul 1931 | Box 11 \ 3 03-page418 | |
| Daily log of valve clearance measurements for a six-cylinder engine. | 8th Jul 1931 | Box 11 \ 3 03-page419 | |
| Bonnet knocks on the 25-EX model, particularly regarding rubber buffers and radiator clearance. | 8th Jul 1931 | Box 11 \ 3 03-page420 | |
| The poor performance of special Dunlop tyres and a proposal for a radiator comparison test. | 8th Jul 1931 | Box 11 \ 3 03-page421 | |
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