| Description | Date | Identifier | |
| Planned demonstrations, modifications, and mileage expectations for the 19-EX car. | 11th Jun 1932 | Box 11 \ 4 04-page062 | |
| Modifications to the 19-EX car following an incomplete 10,000-mile test. | 22th Jun 1932 | Box 11 \ 4 04-page063 | |
| Continuation of a report detailing modifications to exhaust valves, spark plugs, and a silencer for a vehicle undergoing a 10,000-mile test. | 22th Jun 1932 | Box 11 \ 4 04-page064 | |
| Letter regarding exhaust system issues and pipe thicknesses on the 19-EX model following a 10,000-mile test. | 27th Jun 1932 | Box 11 \ 4 04-page065 | |
| Letter detailing the initial examination and running issues of car 19-EX in France. | 29th Jun 1932 | Box 11 \ 4 04-page066 | |
| Acceleration test results for vehicle 19-EX, detailing performance times, weather conditions, and engine settings. | 30th Jun 1932 | Box 11 \ 4 04-page067 | |
| Table of 3rd gear acceleration times for various speed ranges. | 1st Jul 1932 | Box 11 \ 4 04-page068 | |
| Request for road test information on HD.3 Lodge sparking plugs to check for preignition. | 1st Jul 1932 | Box 11 \ 4 04-page069 | |
| Top gear acceleration times tested with different needle settings. | 2nd Jul 1932 | Box 11 \ 4 04-page070 | |
| Engine knock, oil loss from the axle, and engine temperature management in hot weather. | 2nd Jul 1932 | Box 11 \ 4 04-page071 | |
| Letter to A.B. Roberts regarding carburettor issues and a request for mean speed timings. | 4th Jul 1932 | Box 11 \ 4 04-page072 | |
| Relaying the content of a telegram regarding required vehicle parts and reports. | 4th Jul 1932 | Box 11 \ 4 04-page073 | |
| Telegram from Hancock reporting a car held up due to piston ring breakages, requiring a new piston from Paris. | 5th Jul 1933 | Box 11 \ 4 04-page074 | |
| Faults with a spare wheel carrier, servo mechanism, and a cylinder blow from a road test. | 5th Jul 1932 | Box 11 \ 4 04-page075 | |
| Dismantled pistons with broken ring stops, a seized piston, and a telegram regarding the issue. | 5th Jul 1932 | Box 11 \ 4 04-page076 | |
| Drawing illustrating a failure on a side spare wheel stay in frame where three bolt heads have broken off. | 5th Jul 1932 | Box 11 \ 4 04-page077 | |
| Piston overheating due to thinness, carbon deposits, and broken piston ring stops. | 6th Jul 1932 | Box 11 \ 4 04-page078 | |
| Hand-drawn diagram illustrating wear and damage to piston rings and bands. | 1st Jul 1932 | Box 11 \ 4 04-page079 | |
| The results of lagging various exhaust components to reduce tinniness after fitting a new piston. | 7th Jul 1932 | Box 11 \ 4 04-page080 | |
| Follow-up letter to G.W. Hancock requesting details on a car's synchromesh seizure and performance figures. | 7th Jul 1932 | Box 11 \ 4 04-page081 | |
| Failure of bolts on side spare wheel carriers and the dispatch of new, larger bolts. | 8th Jul 1932 | Box 11 \ 4 04-page082 | |
| Side spare wheel carrier bolts for chassis 19-EX. | 9th Jul 1932 | Box 11 \ 4 04-page083 | |
| Issue of frame and radiator jellying on the Phantom and testing a new radiator mounting solution. | 9th Jul 1932 | Box 11 \ 4 04-page084 | |
| Diagnosing and fixing an erratic slow running engine caused by a faulty carburettor needle valve. | 9th Jul 1932 | Box 11 \ 4 04-page085 | |
| Synchromesh seizure and general vehicle performance during testing. | 9th Jul 1932 | Box 11 \ 4 04-page086 | |
| Engine fading after high speed runs, mileage targets for a trip, and an oil leak from the rear axle. | 2nd Jul 1932 | Box 11 \ 4 04-page087 | |
| Dismantling an engine to investigate issues with stickiness and load loss on a low inertia slipper wheel. | 10th Jul 1932 | Box 11 \ 4 04-page088 | |
| Hand-drawn sketch detailing specifications for two types of asbestos washers. | 10th Jul 1932 | Box 11 \ 4 04-page089 | |
| Engine component issues, specifically tappet clearance and spark plug performance. | 10th Jul 1932 | Box 11 \ 4 04-page090 | |
| Confirming suggestions for testing exhaust silencers and the need to fit a temporary heat shield. | 11th Jul 1932 | Box 11 \ 4 04-page091 | |
| Instructions regarding the preparation of car 19-EX for Mr. Northey's trip on the continent. | 11th Jul 1932 | Box 11 \ 4 04-page092 | |
| From Chateauroux about receiving a telegram concerning F.S.'s availability. | 11th Jul 1932 | Box 11 \ 4 04-page093 | |
| Performance issues with vehicle 19EX following timing alterations and a disappointing silencer test. | 12th Jul 1932 | Box 11 \ 4 04-page094 | |
| Engine timing adjustments and subsequent performance testing with accompanying valve timing diagrams. | 12th Jul 1932 | Box 11 \ 4 04-page095 | |
| Record of acceleration tests for vehicle 19-EX. | 11th Jul 1932 | Box 11 \ 4 04-page096 | |
| Temperature readings taken in the rear of a car with and without a shield fitted. | 11th Jul 1932 | Box 11 \ 4 04-page097 | |
| To G.W. Hancock requesting confirmation on the location of an oil temperature reading. | 12th Jul 1932 | Box 11 \ 4 04-page098 | |
| Requesting the substitution of previously sent acceleration figures with a corrected, attached list. | 13th Jul 1932 | Box 11 \ 4 04-page099 | |
| Acceleration test results for the 19-EX, detailing conditions, valve timing, camshaft specifications, and performance data across a range of speeds. | 11th Jul 1932 | Box 11 \ 4 04-page100 | |
| Temperature tests conducted in the rear of a 19-EX model with and without silencer shields. | 13th Jul 1932 | Box 11 \ 4 04-page101 | |
| Dispatch of excessively worn dynamo brushes from vehicle 19-EX. | 14th Jul 1932 | Box 11 \ 4 04-page102 | |
| Oil temperature readings and the case for designing an oil cooler. | 14th Jul 1932 | Box 11 \ 4 04-page103 | |
| Letter discussing carburettor performance, speed tests at Brooklands, and the Peregrine car. | 5th Jul 1932 | Box 11 \ 4 04-page104 | |
| Modifications to exhaust silencers to quieten fishtail noise and manage heat. | 9th Jul 1932 | Box 11 \ 4 04-page105 | |
| Report comparing the exhaust noise of unit 19-EX after fitting a stronger downtake pipe and expansion box against unit 60.JS. | 16th Jul 1932 | Box 11 \ 4 04-page106 | |
| Maximum speed tests and engine timing adjustments conducted in France. | 16th Jul 1932 | Box 11 \ 4 04-page107 | |
| Letter discussing test results for exhaust systems, maximum speeds, and troubleshooting rattles on specific car models. | 18th Jul 1932 | Box 11 \ 4 04-page108 | |
| Oil leak on a rear brake and the dispatch of replacement parts. | 18th Jul 1932 | Box 11 \ 4 04-page109 | |
| Maximum speed test for the 19-EX model, including valve timing and performance data. | 18th Jul 1932 | Box 11 \ 4 04-page110 | |
| Request to send Cotton Duck Washers by Air Mail to France. | 18th Jul 1932 | Box 11 \ 4 04-page111 | |
| Maximum speed test results for vehicle 19-EX, detailing test conditions, setup, and performance data. | 19th Jul 1932 | Box 11 \ 4 04-page112 | |
| Vehicle performance following adjustments to the timing and the fitting of cotton duck washers to the damper. | 19th Jul 1932 | Box 11 \ 4 04-page113 | |
| Dismantling of an intermediate pipe from the silencer for a maximum speed test. | 20th Jul 1932 | Box 11 \ 4 04-page114 | |
| Damage to a vehicle's rear jack and brake drum discovered during a driver changeover. | 20th Jul 1932 | Box 11 \ 4 04-page115 | |
| Test results for various damper materials and observations on engine and exhaust noise. | 20th Jul 1932 | Box 11 \ 4 04-page116 | |
| Vehicle testing, detailing issues with exhaust noise, maximum speed trials, and a rear axle oil leak. | 20th Jul 1932 | Box 11 \ 4 04-page117 | |
| Options for repairing a serious leak and expressing frustration over a lack of advice. | 21th Jul 1932 | Box 11 \ 4 04-page118 | |
| Letter to G.W. Hancock regarding vehicle timing, consumption figures with different needles, and the status of a 10,000-mile test. | 21th Jul 1932 | Box 11 \ 4 04-page119 | |
| Letter discussing the results of a silencer cut-out test and comparing them to previous results obtained at Brooklands. | 21th Jul 1932 | Box 11 \ 4 04-page120 | |
| Maximum speed tests for the 19-EX vehicle with varying exhaust configurations. | 21th Jul 1932 | Box 11 \ 4 04-page121 | |
| Comparing the value and reliability of engine-mounted versus crossmember-mounted radiators. | 21th Jul 1932 | Box 11 \ 4 04-page122 | |
| Confirming a telegram sent from France regarding the completion of mileage and a request for further instructions. | 22th Jul 1932 | Box 11 \ 4 04-page123 | |
| From France regarding the performance of an inertia damper, engine rattles, a petrol pump knock, and the use of cotton duck washers. | 22th Jul 1932 | Box 11 \ 4 04-page124 | |
| Cover note for a report on car 19-EX after 5,000 miles running in France. | 22th Jul 1932 | Box 11 \ 4 04-page125 | |
| Engine features and failures for vehicle 19-EX at 5000 miles. | 14th Jul 1932 | Box 11 \ 4 04-page126 | |
| Piston, spark plug, and carburettor issues discovered during mileage testing. | 30th Jun 1929 | Box 11 \ 4 04-page127 | |
| Valve tappet clearance issues and petrol pump failures due to boiling and supply blockage. | 30th Jun 1929 | Box 11 \ 4 04-page128 | |
| Modifications and performance notes for a vehicle's filter, oil temperature, clutch, pedals, dampers, and exhaust. | 30th Jun 1929 | Box 11 \ 4 04-page129 | |
| Exhaust system modifications and synchromesh gearbox performance tests. | 30th Jun 1929 | Box 11 \ 4 04-page130 | |
| Temporary synchromesh failure, a gear lever plunger modification, and rear brake performance. | 30th Jun 1929 | Box 11 \ 4 04-page131 | |
| The condition of brakes, axles, and suspension components after 6,500 miles of use. | 30th Jun 1929 | Box 11 \ 4 04-page132 | |
| Vehicle performance and adjustments to steering, suspension, and drivetrain components. | 30th Jun 1929 | Box 11 \ 4 04-page133 | |
| Spare wheel carrier bolt failures, radiator shutter performance, and bonnet condition under various road tests. | 30th Jun 1929 | Box 11 \ 4 04-page134 | |
| Issues and modifications for a petrol gauge, water pump, dynamo drive, and starter motor. | 30th Jun 1929 | Box 11 \ 4 04-page135 | |
| The performance and maintenance of a starter motor, dynamo with voltage regulator, and battery box. | 30th Jun 1929 | Box 11 \ 4 04-page136 | |
| Status report on various vehicle components after testing, noting failures and performance. | 30th Jun 1929 | Box 11 \ 4 04-page137 | |
| The performance of a Lucas horn, chassis lubrication, engine oils, and tyre wear. | 23th Jul 1932 | Box 11 \ 4 04-page138 | |
| Plans to investigate an axle leak in Paris and a report on petrol consumption trials using different carburettor needles. | 23th Jul 1932 | Box 11 \ 4 04-page139 | |
| Letter to G.W. Hancock in France discussing car performance, test results, and arrangements for future tests. | 25th Jul 1932 | Box 11 \ 4 04-page140 | |
| Covering note for a report on the 19-EX car after 9,000 miles of running in France. | 8th Aug 1932 | Box 11 \ 4 04-page141 | |
| 9,000-mile report on vehicle 19-EX, detailing engine, fuel pump, ignition, and piston performance. | 23th Jul 1932 | Box 11 \ 4 04-page142 | |
| Inspection and performance of various vehicle components after testing. | 23th Jul 1932 | Box 11 \ 4 04-page143 | |
| Condition report on various vehicle components after mileage. | 23th Jul 1932 | Box 11 \ 4 04-page144 | |
| The condition of a vehicle's propeller shaft, rear axle, springs, and chassis lubrication system. | 15th Aug 1932 | Box 11 \ 4 04-page145 | |
| Test report on the 19-EX experimental car after 10,000 miles of running. | 15th Aug 1932 | Box 11 \ 4 04-page146 | |
| Noise and operational issues in various vehicle components. | 15th Aug 1932 | Box 11 \ 4 04-page147 | |
| The failure analysis of a Phantom clutch friction plate after 10,000 miles of use. | 27th Sep 1932 | Box 11 \ 4 04-page148 | |
| Diagram detailing modifications and specifications for a 9EX Clutch friction plate. | 27th Sep 1932 | Box 11 \ 4 04-page149 | |
| Piston failure, attributing the cause to crankshaft vibration causing a twisting action on the connecting rod at high speeds. | 14th Oct 1932 | Box 11 \ 4 04-page150 | |
| Comparison of Tecalemit and Autoklean oil filters following a 10,000-mile test on car 19-EX in France. | 14th Oct 1932 | Box 11 \ 4 04-page151 | |
| List of two arguments against using a particular filter. | 14th Oct 1932 | Box 11 \ 4 04-page152 | |
| Cover or divider page from a set of documents. | 1st Jan 1933 | Box 11 \ 4 04-page153 | |
| Car's damper system performance, detailing an oil pressure loss due to a loose union. | 8th Jan 1933 | Box 11 \ 4 04-page154 | |
| Report from Paris detailing vehicle performance issues concerning the relief valve, gearbox, carburetor, and cold starting. | 9th Jan 1933 | Box 11 \ 4 04-page155 | |
| Hotel letterhead concerning a shock damper governor fault. | 9th Jan 1933 | Box 11 \ 4 04-page156 | |
| Letter on hotel stationery detailing a road trial and suspension adjustments for a car. | 11th Jan 1933 | Box 11 \ 4 04-page157 | |
| Faults found in a car after a demonstration in Paris. | 11th Jan 1933 | Box 11 \ 4 04-page158 | |
| Letter to A.B. Roberts regarding a carburetter issue that appeared after a car left Derby. | 12th Jan 1933 | Box 11 \ 4 04-page159 | |
| Demonstration car's issues including a knock, a leaking shock damper, and sourcing lubricant. | 12th Jan 1933 | Box 11 \ 4 04-page160 | |
| On Hôtel Sylva Pergolèse letterhead regarding Lockheed fluid and water temperature in a Phantom II. | 14th Jan 1933 | Box 11 \ 4 04-page161 | |
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