| Description | Date | Identifier | |
| Mileage testing of an oil pump, relief valve, water pump, oil cooler, and Cadillac fan. | 8th Oct 1935 | Box 91 \ 3 scan0211 | |
| Photographic comparison of two sets of worn or damaged engine bearing shells. | 8th Oct 1935 | Box 91 \ 3 scan0212 | |
| Hand-drawn diagram of a modification for loss of water, showing a spring-loaded valve. | 8th Oct 1935 | Box 91 \ 3 scan0213 | |
| Comparative noise test of Cadillac and R.R. fans, and a report on radiator water loss. | 23th Sep 1935 | Box 91 \ 3 scan0214 | |
| The performance and issues with engine mountings, bonnet, ignition plugs, and undersheets. | 23th Sep 1935 | Box 91 \ 3 scan0215 | |
| Hand-drawn diagram of a mud shield for the Phantom III gearbox, viewed from underneath. | 23th Sep 1935 | Box 91 \ 3 scan0216 | |
| Drawing of experimental shields for the Phantom III gearbox to prevent mud ingress. | 23th Sep 1935 | Box 91 \ 3 scan0217 | |
| Sketch of an off-side engine tray with annotations for felt and a required deflector. | 23th Sep 1935 | Box 91 \ 3 scan0218 | |
| Test report on gearbox cooling, clutch performance, engine coupling, and Cadillac type gears. | 23th Sep 1935 | Box 91 \ 3 scan0219 | |
| Issues and modifications related to the gearbox, suspension, and servo system. | 23th Sep 1935 | Box 91 \ 3 scan0220 | |
| Photograph of two tires standing upright. | 31th Oct 1935 | Box 91 \ 3 scan0221 | |
| The performance of the steering column, steering tubes, propeller shaft, and rear axle. | 31th Oct 1935 | Box 91 \ 3 scan0222 | |
| Diagram illustrating an issue where the rear brake drums are fouling the nuts holding a cross member on a Phantom III. | 12th Nov 1935 | Box 91 \ 3 scan0223 | |
| Drawing of water and dirt excluders fitted to the rear brake foot and hand levers for Phantom III 31 EX. | 10th Nov 1935 | Box 91 \ 3 scan0224 | |
| Drawing illustrating a fouling point on a brake drum for a Phantom III. | 10th Nov 1935 | Box 91 \ 3 scan0225 | |
| Issues with rear braking, brake drums, and hand brake adjustment, including proposed modifications. | 14th Nov 1935 | Box 91 \ 3 scan0226 | |
| Inspection report detailing the condition and performance of various vehicle components after mileage. | 14th Nov 1935 | Box 91 \ 3 scan0227 | |
| Vehicle component report detailing performance and issues with suspension, carriers, exhaust, dampers, and the petrol tank. | 14th Nov 1935 | Box 91 \ 3 scan0228 | |
| Issues and observations on various vehicle components including the tank, petrol filter, battery, and radio aerial. | 14th Nov 1935 | Box 91 \ 3 scan0229 | |
| Performance and fault report on various vehicle components including electrical systems and the petrol pump. | 14th Nov 1935 | Box 91 \ 3 scan0230 | |
| Condition and performance report on a Park Ward Saloon body and a Phantom III chassis. | 21th Nov 1935 | Box 91 \ 3 scan0231 | |
| Short typed memo concerning the movements of company personnel from France to Derby. | 21th Nov 1935 | Box 91 \ 3 scan0232 | |
| Letter from France discussing brake issues and design modifications on the Phantom III model. | 21th Nov 1935 | Box 91 \ 3 scan0233 | |
| Silent bloc bushes, shock damper bolts, and dynamo drive issues on a Phantom III. | 23th Nov 1935 | Box 91 \ 3 scan0234 | |
| Sent from France confirming the enclosure of photographs as requested. | 23th Nov 1935 | Box 91 \ 3 scan0235 | |
| Responding to a request for a 1933 memo and providing driving instructions for new men. | 23th Nov 1935 | Box 91 \ 3 scan0236 | |
| Requesting the return of scarce Phantom III Rear Autolock Dampers to Derby. | 23th Nov 1935 | Box 91 \ 3 scan0237 | |
| Confirming the rear Roll Rod was in use and not disconnected during mileage. | 23th Nov 1935 | Box 91 \ 3 scan0238 | |
| Report regarding an oil seal for a brake countershaft and various other gearbox issues on vehicle 21.G.IV. | 24th Nov 1935 | Box 91 \ 3 scan0239 | |
| Letter detailing enclosed sketches for a Brake Counter-shaft and change speed lever, and referencing a daily report on a gearbox modification. | 24th Nov 1935 | Box 91 \ 3 scan0240 | |
| Return and certification of a Paris invoice and associated correspondence. | 18th Dec 1935 | Box 91 \ 3 scan0241 | |
| Strip examination report on Fescolised tappets and camshaft condition for a Phantom III - 31-EX after a 10,000-mile run. | 21th Dec 1935 | Box 91 \ 3 scan0242 | |
| Petrol pump issues and a broken chassis lubrication pipe on a Phantom III. | 23th Oct 1935 | Box 91 \ 3 scan0243 | |
| Agreeing to a charge for an invoice of Michelin Stop Tyres and tubes. | 24th Dec 1935 | Box 91 \ 3 scan0244 | |
| Internal memorandum regarding the examination and return of faulty Fescolised tappets for a Phantom III. | 1st Jan 1936 | Box 91 \ 3 scan0245 | |
| List of parts salvaged from the body of chassis 31-EX. | 1st Jan 1936 | Box 91 \ 3 scan0246 | |
| List of damaged and usable parts, noting one direction indicator, two O.K. tyres, and one O.K. wheel with the remainder scrapped. | 27th Jan 1956 | Box 91 \ 3 scan0247 | |
| Cover note for a report on the condition of an engine, gearbox, and rear axle assemblies after 10,000-mile trials. | 27th Jan 1956 | Box 91 \ 3 scan0248 | |
| 100% strip examination report on the condition of a Spectre No. 10 unit engine, gearbox, and rear axle assemblies after 10,000 miles trials. | 27th Jan 1936 | Box 91 \ 3 scan0249 | |
| Inspection report detailing the wear and condition of various engine components. | 27th Jan 1936 | Box 91 \ 3 scan0250 | |
| Inspection report detailing faults and wear on a water pump, oil system, exhaust, and electrical components. | 27th Jan 1936 | Box 91 \ 3 scan0251 | |
| Inspection report detailing the condition of various electrical and gearbox components. | 27th Jan 1936 | Box 91 \ 3 scan0252 | |
| Inspection report detailing wear and tear on various gearbox components. | 27th Jan 1936 | Box 91 \ 3 scan0253 | |
| Inspection report detailing damage to rear axle and brake components after a crash. | 27th Jan 1936 | Box 91 \ 3 scan0254 | |
| Inspection report detailing damage and wear on various brake system components and needle bearings. | 6th Jan 1936 | Box 91 \ 3 scan0255 | |
| Technical drawing illustrating wear on brake adjusting cams for the Phantom III and SII chassis. | 6th Jan 1936 | Box 91 \ 3 scan0256 | |
| Blueprint detailing the specifications for twisted axle shafts for a Ph III SII chassis. | 6th Jan 1936 | Box 91 \ 3 scan0257 | |
| Condition report of Ph III S II Chassis axle tubes after a 10,000-mile test in France. | 4th Jan 1936 | Box 91 \ 3 scan0258 | |
| Diagram showing wheel-case gear backlash measurements after a 10,000-mile test in France. | 10th Jan 1936 | Box 91 \ 3 scan0259 | |
| Test results for Phantom III No. 10 valve guides after a 10,000-mile test in France. | 13th Jan 1936 | Box 91 \ 3 scan0260 | |
| Chart detailing the wear measurements on camshaft E.87269 after a 10,000 miles test in France. | 23th Jan 1936 | Box 91 \ 3 scan0261 | |
| Piston profile measurements for a Phantom III No. 10 Unit after a 10,000-mile test in France. | 9th Jan 1936 | Box 91 \ 3 scan0262 | |
| Test report on cylinder liner bore distortions after a 10,000-mile test in France. | 9th Jan 1936 | Box 91 \ 3 scan0263 | |
| Attaching a report on chassis units examined after 10,000 miles trials. | 10th Feb 1936 | Box 91 \ 3 scan0264 | |
| The examination of a chassis after a 10,000-mile test in France and a subsequent crash. | 10th Feb 1936 | Box 91 \ 3 scan0265 | |
| Condition report detailing wear and damage to various vehicle components, some resulting from an accident. | 10th Feb 1936 | Box 91 \ 3 scan0266 | |
| Inspection report detailing the condition and damage to various vehicle components. | 10th Feb 1936 | Box 91 \ 3 scan0267 | |
| Inspection report detailing damage to a vehicle's undershields, suspension, brakes, hubs, and front axle, much of it attributed to an accident. | 10th Feb 1936 | Box 91 \ 3 scan0268 | |
| Inspection report detailing accident damage to steering, radiator, exhaust, and salvaged electrical components from a specific vehicle. | 10th Feb 1936 | Box 91 \ 3 scan0269 | |
| Condition report on various car components including headlamps, pumps, and electrical parts. | 10th Feb 1936 | Box 91 \ 3 scan0270 | |
| List of modifications for the No. 2 Spectre car ahead of a 10,000-mile test in France. | 25th Apr 1935 | Box 91 \ 4 scan0001 | |
| Design alterations for the front suspension of the Spectre II for the French market. | 26th Apr 1935 | Box 91 \ 4 scan0002 | |
| Modifications to a rubber engine mounting for the Spectre 2 car for France. | 29th Apr 1935 | Box 91 \ 4 scan0003 | |
| Specifications and progress for the '15,000 Miles Cars', including car 21-G-IV and a Bentley model. | 3rd May 1935 | Box 91 \ 4 scan0004 | |
| Brake shoe modifications, a 14-inch drum axle, and changes to the Spectre car. | 3rd May 1935 | Box 91 \ 4 scan0005 | |
| Specification document for the Spectre III suspension system for France. | 14th May 1935 | Box 91 \ 4 scan0006 | |
| Progress report on the Spectre model, detailing developments in its suspension, gearbox, and steering systems. | 21th May 1935 | Box 91 \ 4 scan0007 | |
| Technical update on testing and development of carburation, tappets, pistons, crankshafts, and brakes. | 21th May 1935 | Box 91 \ 4 scan0008 | |
| Frame stiffness, water circulation, clutch tests, and proposed modifications for the Spectre 3 car for France. | 21th May 1935 | Box 91 \ 4 scan0009 | |
| Typed memorandum confirming an endeavour to fit additional parts without delaying the car. | 21th Aug 1935 | Box 91 \ 4 scan0010 | |
| Modifications for the No. 3 Spectre car before its 10,000-mile test in France. | 21th May 1935 | Box 91 \ 4 scan0011 | |
| Note about amending a chassis specification with other available parts. | 21th May 1935 | Box 91 \ 4 scan0012 | |
| Query regarding the logistics and requirements for sending an experimental car to France for testing. | 23th May 1935 | Box 91 \ 4 scan0013 | |
| Requesting details and completion dates for specification schemes for the 'Spectre 3 - 10,000 Miles in France' car. | 28th May 1935 | Box 91 \ 4 scan0014 | |
| The gearbox for the Spectre 3-S-1 10,000 miles test. | 24th May 1935 | Box 91 \ 4 scan0015 | |
| Comparison table of gearbox backlash tests for various vehicle models and configurations. | 27th May 1935 | Box 91 \ 4 scan0016 | |
| Correspondence concerning regulations and bank guarantees for taking an experimental car into France. | 27th May 1935 | Box 91 \ 4 scan0017 | |
| Specification for the Spectre III suspension for use in France, detailing required parts and modifications. | 27th May 1935 | Box 91 \ 4 scan0018 | |
| Bearing replacement and lubrication for the Spectre III rear axle after a 10,000-mile test. | 28th May 1935 | Box 91 \ 4 scan0019 | |
| Requesting the interchange and modification of water temperature control components for Spectre engines. | 29th May 1935 | Box 91 \ 4 scan0020 | |
| Clutch modification for the Spectre 3-S-I 10,000 miles test. | 30th May 1935 | Box 91 \ 4 scan0021 | |
| Selection of a bevel pinion bearing for the Spectre Rear Axle, recommending an R. & M. part and requesting a piece number. | 12th Jun 1935 | Box 91 \ 4 scan0022 | |
| Letter to the Royal Automobile Club acknowledging receipt of a paper map of Europe. | 14th Jun 1935 | Box 91 \ 4 scan0023 | |
| Arranging a trip to France for staff to gain experience with the Spectre car in Boulogne. | 15th Jun 1935 | Box 91 \ 4 scan0024 | |
| Secret memo detailing disappointment with the performance of the Spectre III prototype, particularly its engine and noisy tyres. | 17th Jun 1935 | Box 91 \ 4 scan0025 | |
| Request to detail and construct parts for a front braking modification on a Spectre III car. | 17th Jun 1935 | Box 91 \ 4 scan0026 | |
| Specifications for Spectre III road springs for the French market, detailing piece numbers, loads, and buffer clearances. | 19th Jun 1935 | Box 91 \ 4 scan0027 | |
| Car performance issues and repairs during a road test in France. | 23th Jun 1935 | Box 91 \ 4 scan0028 | |
| Temperature readings from a test run of the 3. S. I. SPECTRE vehicle in France. | 25th Jun 1935 | Box 91 \ 4 scan0029 | |
| List of 19 documented faults for the Spectre III model. | 25th Jun 1935 | Box 91 \ 4 scan0030 | |
| List of documented faults for the Spectre III model. | 25th Jun 1935 | Box 91 \ 4 scan0031 | |
| List of agenda items and notes from a Car Conference. | 26th Jun 1935 | Box 91 \ 4 scan0032 | |
| Letter to a customer regarding adjustments for Spectre Brakes and clutch issues. | 26th Jun 1935 | Box 91 \ 4 scan0033 | |
| Letter to a customer in France detailing fixes for vapour lock, oil leaks, idling, and other vehicle issues. | 26th Jun 1935 | Box 91 \ 4 scan0034 | |
| Mechanical issues found on the 'S. I. SPECTRE' vehicle, including suspension, steering, and alignment problems. | 26th Jun 1935 | Box 91 \ 4 scan0035 | |
| Vapour lock issue on the Spectre model and the decision to move the petrol pumps. | 27th Jun 1935 | Box 91 \ 4 scan0036 | |
| Telegram reporting test results indicating that an insulation filter has worsened a vapour lock issue. | 27th Jun 1935 | Box 91 \ 4 scan0037 | |
| Simpler methods for preventing piston seizing in front shock absorbers for production cars. | 27th Jun 1935 | Box 91 \ 4 scan0038 | |
| Confirming a telegram about faulty filter insulation, leading to a redesign of the filter and pump position. | 27th Jun 1935 | Box 91 \ 4 scan0039 | |
| Report from France on a Spectre car experiencing vapour lock issues and the subsequent fitting of a filter. | 27th Jun 1935 | Box 91 \ 4 scan0040 | |
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