| Description | Date | Identifier | |
| Engine and suspension failures, including broken connecting rods and springs, and a proposal for repairs. | 3rd Jun 1925 | Box 71 \ 4 scan0226 | |
| Letter discussing work logistics between Paris and Derby, including steering tests, potential material fatigue, and oil supplies. | 3rd Jun 1925 | Box 71 \ 4 scan0227 | |
| Pro forma invoice for a set of six connecting rods addressed to Mr. Hancock in France. | 3rd Jun 1925 | Box 71 \ 4 scan0228 | |
| Field report from France detailing engine and suspension faults discovered on Chassis 93 NK. | 3rd Jun 1925 | Box 71 \ 4 scan0229 | |
| Oil consumption, comparing performance in France and England, and detailing a modification to the low-pressure oil springs. | 1st Jun 1925 | Box 71 \ 4 scan0230 | |
| Letter regarding engine performance, engine guard modifications, and staff working arrangements in France. | 5th Jun 1925 | Box 71 \ 4 scan0231 | |
| Request to arrange payment for laundry bills for men at Chateauroux, France. | 5th Jun 1925 | Box 71 \ 4 scan0232 | |
| Telegram requesting urgent dispatch of a torque action damper spring set and bolts by aeroplane. | 8th Jun 1925 | Box 71 \ 4 scan0233 | |
| Summary of faults found during testing for chassis 93 NK. | 8th Jun 1925 | Box 71 \ 4 scan0234 | |
| The engine condition of chassis 93 NK after a 21,139-mile run, detailing wear and tear on components. | 8th Jun 1925 | Box 71 \ 4 scan0235 | |
| Inspection report detailing the condition and performance of various vehicle components after road testing. | 27th May 1925 | Box 71 \ 4 scan0236 | |
| Condition report detailing wear and performance of various vehicle components. | 27th May 1925 | Box 71 \ 4 scan0237 | |
| Status report detailing the condition of various vehicle components, including the steering, radiator, gearbox, and brakes. | 27th May 1925 | Box 71 \ 4 scan0238 | |
| Vehicle condition report detailing faults with electrical fittings, suspension, and brakes. | 8th Jun 1925 | Box 71 \ 4 scan0239 | |
| The condition of special enamelled wheels fitted to car 93 NK after 21,000 miles. | 8th Jun 1925 | Box 71 \ 4 scan0240 | |
| Letter to Mr. Hancock regarding a missing part of a report and a missing expense sheet. | 10th Jun 1925 | Box 71 \ 4 scan0241 | |
| The wear of specially enamelled wheels on car 93-NK, comparing those enamelled by Dunlop with those by Rolls-Royce. | 10th Jun 1925 | Box 71 \ 4 scan0242 | |
| Letter from G.W. Hancock regarding delays in receiving parts and oil for 40/50 HP and 20 HP cars. | 10th Jun 1925 | Box 71 \ 4 scan0243 | |
| Letter from G.W. Hancock to 'HS' regarding a summary of faults for car 93 NK and an expense sheet query. | 12th Jun 1925 | Box 71 \ 4 scan0244 | |
| Letter from Chateauroux, France, regarding vehicle 93-NK, requesting a renewal of its Laissez Passer and information on piston rings and big end bearings. | 12th Jun 1925 | Box 71 \ 4 scan0245 | |
| The testing and alteration of a fabric coupling. | 12th Jun 1925 | Box 71 \ 4 scan0246 | |
| Request for clarification on air temperature measurement methods, an inquiry about tyre carriers on chassis 93-NK, and instructions for future report submissions. | 15th Jun 1925 | Box 71 \ 4 scan0247 | |
| The arrangement of 40/50 wheel carriers for a 10,000-mile test. | 1st Jun 1925 | Box 71 \ 4 scan0248 | |
| Driver's license renewal, a broken front spring on car 93 NK, and an oil leak on car 9 G III. | 16th Jun 1925 | Box 71 \ 4 scan0249 | |
| Request for more detailed data on an instance of engine boiling in car 93-NK. | 16th Jun 1925 | Box 71 \ 4 scan0250 | |
| Vehicle oil consumption and a union agreement regarding travel bonuses. | 17th Jun 1925 | Box 71 \ 4 scan0251 | |
| Letter requesting a report on an Autovac suction system and recommendations for gearbox oil leaks. | 17th Jun 1925 | Box 71 \ 4 scan0252 | |
| Inspection report for an O.S.F. spring from Chassis 93 NK, detailing cracks and breaks in the leaves. | 17th Jun 1925 | Box 71 \ 4 scan0253 | |
| Field report from France detailing vehicle test results, oil consumption data, and mechanical failures. | 17th Jun 1925 | Box 71 \ 4 scan0254 | |
| Poor condition of a typewriter and the monitoring of front springs on vehicle 9 G.III. | 17th Jun 1925 | Box 71 \ 4 scan0255 | |
| Letter from G.W. Hancock to 'HS' regarding the failure and condition of an oil relay from vehicle 93 NK. | 17th Jun 1925 | Box 71 \ 4 scan0256 | |
| Letter requesting further investigation into steering, oil leaks, and clutch issues on a vehicle. | 18th Jun 1925 | Box 71 \ 4 scan0257 | |
| Request for data to investigate vehicle overheating issues, focusing on wind, fan belt, and bonnet configuration. | 18th Jun 1925 | Box 71 \ 4 scan0258 | |
| From G.W. Hancock to 'Hs' regarding the despatch of springs and receipt of Castrol oil in France. | 18th Jun 1925 | Box 71 \ 4 scan0259 | |
| Letter from France discussing a choked autovac suction pipe, oil consumption, and various oil leaks. | 19th Jun 1925 | Box 71 \ 4 scan0260 | |
| Post Office telegram reporting multiple seized, cracked and scored parts, and requesting further instructions. | 22th Jun 1923 | Box 71 \ 4 scan0261 | |
| Soldering of the ball end on the Oil Relay Ignition Governor to prevent it coming adrift. | 22th Jun 1925 | Box 71 \ 4 scan0262 | |
| Engine test conditions, bearing failures, and oil consumption analysis for cars 93 NK and 9 G.III. | 22th Jun 1925 | Box 71 \ 4 scan0263 | |
| The status of reports and the replacement of a temporary front spring with a standard one from Paris. | 23th Jun 1925 | Box 71 \ 4 scan0264 | |
| Clutch failure, including details of the pressure plate fabric and a broken spring distance piece. | 23th Jun 1925 | Box 71 \ 4 scan0265 | |
| Telegram requesting replacement fabric for a clutch pressure plate. | 23th Nov 1940 | Box 71 \ 4 scan0266 | |
| Observed temperature readings under different wind conditions. | 26th Jun 1925 | Box 71 \ 4 scan0267 | |
| Notification regarding the arrival of clutch plates and rivets for chassis 93 NK. | 29th Jun 1925 | Box 71 \ 4 scan0268 | |
| Despatch note for a Tyre Record book to a customer in France. | 30th Jun 1925 | Box 71 \ 4 scan0269 | |
| From G.W. Hancock to 'HS' regarding delays for vehicles 9 G.III and 93 NK. | 30th Jun 1925 | Box 71 \ 4 scan0270 | |
| Letter regarding the return of three front springs for chassis 93-NK and a request for customs information. | 16th Jun 1925 | Box 71 \ 4 scan0271 | |
| Confirming receipt of an induction bend and ball race for chassis 93 NK, while awaiting a clutch plate. | 26th Jun 1925 | Box 71 \ 4 scan0272 | |
| Troubleshooting low oil pressure issues for Chassis 93 NK. | 2nd Jul 1925 | Box 71 \ 4 scan0273 | |
| Instruction to arrange the return of an indemnity from a bank in Boulogne for chassis 98-NK. | 3rd Jul 1925 | Box 71 \ 4 scan0274 | |
| Test report on Chassis 93 NK, detailing engine issues and oil pressure readings from Chateauroux, France. | 3rd Jul 1925 | Box 71 \ 4 scan0275 | |
| Engine performance and issues for chassis 93 NK, including oil pressure tests, piston knock and oil consumption. | 4th Jul 1925 | Box 71 \ 4 scan0276 | |
| Investigation into excessive oil consumption and bearing issues on Chassis 93 NK. | 6th Jul 1925 | Box 71 \ 4 scan0277 | |
| Statement on the condition of connecting rod bearings and engine usage before dismantling. | 6th Jul 1925 | Box 71 \ 4 scan0278 | |
| Report with diagrams showing the condition of connecting rod bearings after a 456-mile test. | 6th Jul 1925 | Box 71 \ 4 scan0279 | |
| Unsafe low oil pressure in Chassis 93 NK due to worn crankshaft bearings. | 7th Jul 1925 | Box 71 \ 4 scan0280 | |
| Steering tests for Chassis 93 NK at various tyre pressures. | 8th Jul 1925 | Box 71 \ 4 scan0281 | |
| Steering wobble tests conducted on chassis 93 NK at various tyre pressures. | 9th Jul 1925 | Box 71 \ 4 scan0282 | |
| Cover letter for a report on chassis 93-NK after completing 25,071 miles. | 9th Jul 1925 | Box 71 \ 4 scan0283 | |
| The condition of engine components for chassis 93-NK after 25,071 miles. | 6th Jul 1925 | Box 71 \ 4 scan0284 | |
| The condition and faults found in various vehicle components, particularly the exhaust system. | 6th Jul 1925 | Box 71 \ 4 scan0285 | |
| The condition of various vehicle components. | 6th Jul 1925 | Box 71 \ 4 scan0286 | |
| The condition of various vehicle components after testing. | 1st Jul 1925 | Box 71 \ 4 scan0287 | |
| The performance and condition of various vehicle components during testing. | 6th Jul 1925 | Box 71 \ 4 scan0288 | |
| The condition of various vehicle components including axles, brakes, springs, and shock absorbers. | 6th Jul 1925 | Box 71 \ 4 scan0289 | |
| The condition of various vehicle components after testing, page 7. | 6th Jul 1925 | Box 71 \ 4 scan0290 | |
| Continuation of a component condition report with test results for speed and consumption. | 9th Jul 1925 | Box 71 \ 4 scan0291 | |
| Confirming the extension of the Chateauroux Lease to a new date. | 9th Jul 1925 | Box 71 \ 4 scan0292 | |
| Test report on steering wobble for chassis 93 NK at various tyre pressures. | 10th Jul 1925 | Box 71 \ 4 scan0293 | |
| Tests concerning tyre roll, wheel balance, and the effects of unequal tyre pressures. | 10th Jul 1925 | Box 71 \ 4 scan0294 | |
| Correspondence regarding car clearance paper issues, steering test results, and personnel arrangements in France. | 10th Jul 1925 | Box 71 \ 4 scan0295 | |
| Requesting red number plates to be sent to Dover for a vehicle returning from France. | 13th Jul 1925 | Box 71 \ 4 scan0296 | |
| Condition report for a Near Side Front spring fitted to chassis 93 NK, detailing breaks and cracks in the leaves after 16,555 miles. | 13th Jul 1925 | Box 71 \ 4 scan0297 | |
| Steering tests investigating wheel wobble at different tyre pressures on chassis 93 NK. | 11th Jul 1925 | Box 71 \ 4 scan0298 | |
| Tests with uneven tyre pressures and unbalanced front wheels. | 12th Jul 1925 | Box 71 \ 4 scan0299 | |
| Steering tests and wheel wobble for Chassis 93 NK. | 12th Jul 1925 | Box 71 \ 4 scan0300 | |
| Steering wobble tests for chassis 93 NK under various road and tyre pressure conditions. | 13th Jul 1925 | Box 71 \ 4 scan0301 | |
| Letter from 'Hs.' to Mr. Hancock regarding steering wobble tests and requesting further trials under three specific conditions. | 14th Jul 1925 | Box 71 \ 4 scan0302 | |
| Steering tests and wheel wobble for Chassis 93 NK. | 14th Jul 1925 | Box 71 \ 4 scan0303 | |
| Requesting the forwarding of general trade number plates to a representative at Dover Harbour. | 15th Jul 1925 | Box 71 \ 4 scan0304 | |
| Letter confirming the despatch of red number plates to Dover for Mr. Hancock. | 15th Jul 1925 | Box 71 \ 4 scan0305 | |
| Broken spring and engine issues for chassis 93 NK, along with travel arrangements back to Derby. | 15th Jul 1925 | Box 71 \ 4 scan0306 | |
| Summary of faults on chassis 93 NK during testing from 8.6.25 to 13.7.25. | 15th Jul 1925 | Box 71 \ 4 scan0307 | |
| Request for a report on tyre specifications and wheel balancing for chassis 93-NK following steering wobble issues during 10,000-mile trials. | 21th Aug 1925 | Box 71 \ 4 scan0308 | |
| Responding to queries about vehicle tests in France, specifically regarding tyre pressures and wheel balancing. | 1st Aug 1925 | Box 71 \ 4 scan0309 | |
| Tyre pressures and steering wobble issues on a London Trials car, registration 93-NK. | 22th Aug 1925 | Box 71 \ 4 scan0310 | |
| Internal memorandum discussing steering wobble issues and recommended tyre pressures for different car types. | 20th Aug 1925 | Box 71 \ 4 scan0311 | |
| Copy of a memo discussing tyre pressures and steering wobble issues. | 21th Aug 1925 | Box 71 \ 4 scan0312 | |
| Requesting a report on tyres and wheels following steering wobble issues during 10,000-mile trials on chassis 93-NK. | 21th Aug 1925 | Box 71 \ 4 scan0313 | |
| Query from Mr. Hancock in France regarding experiences with choked petrol filters and stopped jets on 20 HP and new Phantom models. | 1st Aug 1925 | Box 71 \ 4 scan0314 | |
| 'EAC' over-oiling and the effectiveness of scraper ring bevel orientation. | 1st Feb 1925 | Box 72 \ 1 scan0001 | |
| Explaining the phenomenon of cylinder over-oiling related to the orientation of chamfered piston rings. | 27th Feb 1925 | Box 72 \ 1 scan0002 | |
| Instructing Mr. Lidsey to conduct oil consumption tests on car 98-NK and to modify the relief valve. | 9th Mar 1925 | Box 72 \ 1 scan0003 | |
| Oil consumption for EAC engines, detailing tests on piston ring modifications. | 3rd Mar 1925 | Box 72 \ 1 scan0004 | |
| Drawing of 'L' section rings used in oil consumption experiments. | 3rd Mar 1925 | Box 72 \ 1 scan0005 | |
| Graph of oil consumption curves for an E.A.C. engine running at 3/4 full load. | 3rd Mar 1925 | Box 72 \ 1 scan0006 | |
| Piston design, oil consumption, and analysis of a broken piston. | 3rd Mar 1925 | Box 72 \ 1 scan0007 | |
| 'V' series engine oil consumption comparing different piston designs. | 1st Apr 1925 | Box 72 \ 1 scan0008 | |
| Graph comparing the oil consumption of an E.A.C V Series engine using different piston types. | 31th Mar 1925 | Box 72 \ 1 scan0009 | |
| Graph of oil consumption against RPM for an E.A.C. Engine V Series at 3/4 full load, comparing different piston and ring types. | 31th Mar 1925 | Box 72 \ 1 scan0010 | |
| Secret internal memorandum discussing piston ring designs and their impact on oil consumption. | 15th Apr 1925 | Box 72 \ 1 scan0011 | |
| | | | |
