| Description | Date | Identifier | |
| Suggestion to change studs to set screws on the Wraith III engine controls for easier assembly with the steering box. | 2nd Jul 1937 | Box 6 \ 6 06-page243 | |
| Progress report on the testing of the third Wraith car and its engine performance. | 5th Jul 1937 | Box 6 \ 6 06-page244 | |
| List of 17 modifications and repairs to be carried out on a specific car. | 26th Aug 1941 | Box 6 \ 6 06-page245 | |
| List of modifications and tasks for an engine, including fitting parts and interchanging components. | 10th Jul 1937 | Box 6 \ 6 06-page246 | |
| Changes to hole sizes for the Wraith III rear engine and gearbox suspension. | 10th Jul 1937 | Box 6 \ 6 06-page247 | |
| Specification changes to be included for three Wraith chassis. | 26th Jul 1937 | Box 6 \ 6 06-page248 | |
| Vacuum ignition control for the Wraith III model, referencing drawing LeC.5756. | 30th Jun 1937 | Box 6 \ 6 06-page249 | |
| Two fitting jobs for a Wraith III car. | 2nd Aug 1937 | Box 6 \ 6 06-page250 | |
| Work programme of checks and adjustments for a 25-0-VI vehicle. | 5th Aug 1931 | Box 6 \ 6 06-page251 | |
| Programme of work including engine tuning, performance figures, and steering checks for the 24-G-VI model. | 5th Aug 1937 | Box 6 \ 6 06-page252 | |
| Work programme for vehicle 27-G-VI. | 5th Aug 1931 | Box 6 \ 6 06-page253 | |
| Provisional specification for the Wraith car, listing unsatisfactory parts and production progress. | 16th Jun 1937 | Box 6 \ 6 06-page254 | |
| Modifications for a car, including fitting a new crossmember, Wraith fan, and experimental undershields. | 18th Aug 1937 | Box 6 \ 6 06-page255 | |
| Tests of a Wraith III 'mock-up' unit, detailing modifications to the cylinder block and valve gear. | 19th Aug 1937 | Box 6 \ 6 06-page256 | |
| The trial of 25/30 rockers, and modifications to bottom tappets and valve gear to reduce noise. | 19th Aug 1937 | Box 6 \ 6 06-page257 | |
| Engine development, discussing camshaft clearances, valve bounce, springs, timing gears, and lubrication. | 19th Aug 1937 | Box 6 \ 6 06-page258 | |
| Engine development issues including overoiling, lubrication, oil filtration, and induction system improvements. | 19th Aug 1937 | Box 6 \ 6 06-page259 | |
| Investigation into an oil leak from the engine into the clutch pit. | 19th Aug 1937 | Box 6 \ 6 06-page260 | |
| Blueprint drawing for a Tappet component for Wraith Valves & Fittings. | 30th Jun 1930 | Box 6 \ 6 06-page261 | |
| Blueprint for a Tappet, detailing dimensions, materials, and manufacturing processes. | 19th Aug 1937 | Box 6 \ 6 06-page262 | |
| Performance graph for the WRAITH unit showing B.HP and B.M.E.P. vs R.P.M. under various test conditions. | 9th Aug 1937 | Box 6 \ 6 06-page263 | |
| Specification of the Wraith III chassis, detailing modifications and parts for frames and fittings. | 21th Aug 1937 | Box 6 \ 6 06-page264 | |
| List of modifications and parts for frames, fittings, petrol system, and rear engine suspension. | 21th Aug 1937 | Box 6 \ 6 06-page265 | |
| Specification sheet detailing parts for frames, fittings, and wing stays. | 21th Aug 1937 | Box 6 \ 6 06-page266 | |
| List of parts and modifications for the Front Apron, Rear Road Springs, and Steering Column and Box. | 21th Aug 1937 | Box 6 \ 6 06-page267 | |
| List of parts and modifications for a vehicle's steering column, box, and tube. | 21th Jun 1937 | Box 6 \ 6 06-page268 | |
| List of parts and fittings for dashbrackets, floorboards, and pressure piping. | 21th Aug 1937 | Box 6 \ 6 06-page269 | |
| List of modifications and parts including pedals, floorboards, oil pump, and shock dampers. | 21th Aug 1937 | Box 6 \ 6 06-page270 | |
| List of modifications for various vehicle systems including suspension, dampers, and tanks. | 21th Aug 1937 | Box 6 \ 6 06-page271 | |
| Modifications to spring suspension components and spring load specifications. | 21th Aug 1937 | Box 6 \ 6 06-page272 | |
| Status report on front axle, brakes, hubs, and steering components with associated part numbers. | 21th Aug 1937 | Box 6 \ 6 06-page273 | |
| List of parts and modifications for vehicle steering, suspension, and rear axle assemblies. | 21th Aug 1937 | Box 6 \ 6 06-page274 | |
| List of modifications and components related to rear brakes, rear hubs, and brake equalising gear. | 21th Aug 1937 | Box 6 \ 6 06-page275 | |
| List of part numbers and modifications for brake, shaft, and radiator components. | 21th Aug 1937 | Box 6 \ 6 06-page276 | |
| Specification list for bumpers, a spare wheel carrier, bonnet, and exhaust fittings. | 21th Aug 1937 | Box 6 \ 6 06-page277 | |
| List of drawings and modifications relating to the gearbox and starting handle. | 21th Aug 1937 | Box 6 \ 6 06-page278 | |
| List of parts and modifications related to the gearbox and actuating gear. | 21th Aug 1937 | Box 6 \ 6 06-page279 | |
| Parts list for the 1st, 2nd, and 3rd Motion Shafts of a gearbox assembly. | 21th Aug 1937 | Box 6 \ 6 06-page280 | |
| List of parts and modifications for the Speedometer Drive, Reverse Gear, Servo Drive, Servo Countershaft, and Servo Mechanism. | 21th Aug 1937 | Box 6 \ 6 06-page281 | |
| List of modifications and specifications for the servo motor, change speed mechanism, and engine components. | 21th Mar 1937 | Box 6 \ 6 06-page282 | |
| Specifications sheet detailing modifications and dimensions for the crankcase, bearings, spring drive, crankshaft, and connecting rods. | 21th Aug 1937 | Box 6 \ 6 06-page283 | |
| Specification sheet listing engine components and related part numbers or modifications. | 21th Aug 1937 | Box 6 \ 6 06-page284 | |
| List of specifications and modifications for various engine components. | 21th Aug 1937 | Box 6 \ 6 06-page285 | |
| Specification sheet listing electrical components and their associated part numbers. | 21th Aug 1937 | Box 6 \ 6 06-page286 | |
| List of electrical components including Dynamo, Ignition Coils, and Switches with their associated parts and specifications. | 21th Aug 1937 | Box 6 \ 6 06-page287 | |
| List of electrical components and their associated parts lists, schemes, or status. | 21th Aug 1937 | Box 6 \ 6 06-page288 | |
| Specification list for the Wraith III model, detailing parts not yet released for production and their current status. | 21th Aug 1937 | Box 6 \ 6 06-page289 | |
| Results of performance tests on different ignition coils. | 25th Aug 1937 | Box 6 \ 6 06-page290 | |
| The Wraith III Specification, requesting to attach a list of sections not yet commenced. | 27th Aug 1937 | Box 6 \ 6 06-page291 | |
| List of features to be included in a forthcoming drawing for a crankcase and its bearings. | 21th Aug 1937 | Box 6 \ 6 06-page292 | |
| Request for the centre of mass of a Wraith III engine for suspension design purposes. | 28th Aug 1937 | Box 6 \ 6 06-page293 | |
| Request to determine the Centre of Mass for a Wraith III engine in both elevation and cross-section. | 30th Aug 1937 | Box 6 \ 6 06-page294 | |
| Road test feedback and points for improvement on a Close-coupled Wraith model. | 30th Aug 1937 | Box 6 \ 6 06-page295 | |
| Production issues and helix errors found in Wraith engine timing gears. | 30th Aug 1937 | Box 6 \ 6 06-page296 | |
| Requesting the manufacture of modified parts for the Wraith III engine. | 30th Aug 1937 | Box 6 \ 6 06-page297 | |
| Specification change for the production Wraith III chassis rear axle. | 1st Sep 1937 | Box 6 \ 6 06-page298 | |
| Proposal to build six Wraith chassis, requesting input on modifications to the specification. | 8th Sep 1937 | Box 6 \ 6 06-page299 | |
| List of faults and the status of investigations for the Wraith model. | 8th Sep 1937 | Box 6 \ 6 06-page300 | |
| List of six modifications and maintenance tasks to be performed on a Wraith III car. | 11th Sep 1937 | Box 6 \ 6 06-page301 | |
| Modification to the connection for the engine oil pressure gauge on the Wraith III model. | 13th Sep 1937 | Box 6 \ 6 06-page302 | |
| Type test procedure for the Wraith model, outlining a 250-hour engine endurance test. | 14th Sep 1937 | Box 6 \ 6 06-page303 | |
| List of test procedures detailing equipment, running conditions for oil and water, and post-test inspection requirements. | 14th Sep 1937 | Box 6 \ 6 06-page304 | |
| Continued list of parameters for observation and adjustment, including temperatures, pressures, and consumption. | 15th Sep 1937 | Box 6 \ 6 06-page305 | |
| Confirmation of a modification to the Wraith induction pipe EW.862 for distribution tests. | 15th Sep 1937 | Box 6 \ 6 06-page306 | |
| Modification of a Wraith induction pipe and requesting the production of two sets. | 15th Sep 1937 | Box 6 \ 6 06-page307 | |
| Parts list and request for the production of a Wraith built-up induction pipe with a hot spot. | 17th Sep 1937 | Box 6 \ 6 06-page308 | |
| List of 18 outstanding issues and problems with a specific vehicle. | 20th Sep 1937 | Box 6 \ 6 06-page309 | |
| Summary of driving impressions and faults found on a Wraith car after a fortnight's test. | 20th Sep 1937 | Box 6 \ 6 06-page310 | |
| Performance of the clutch, engine unit, and suspension. | 20th Sep 1937 | Box 6 \ 6 06-page311 | |
| Faults found in the electrical equipment, bodywork, and petrol pump of a vehicle. | 20th Sep 1937 | Box 6 \ 6 06-page312 | |
| List of outstanding issues and jobs to be completed on a car. | 20th Sep 1937 | Box 6 \ 6 06-page313 | |
| Test driver's report on the performance of a Wraith car, detailing faults with the brakes, steering, and gearbox. | 20th Sep 1937 | Box 6 \ 6 06-page314 | |
| Vehicle performance report discussing the clutch, engine unit, and suspension. | 20th Sep 1937 | Box 6 \ 6 06-page315 | |
| Faults with the electrical equipment, bodywork, and petrol pump system. | 20th Sep 1937 | Box 6 \ 6 06-page316 | |
| Modifications to water pipes, breather pipes, oil feed, and exhaust bracket for the Wraith III. | 20th Sep 1937 | Box 6 \ 6 06-page317 | |
| Blueprint detailing the layout and positions of various engine pipes and hose joints. | 21th Sep 1917 | Box 6 \ 6 06-page318 | |
| Schematic of Macfield water and breather pipes on a Fuller gearbox for a Wraith III. | 21th Sep 1917 | Box 6 \ 6 06-page319 | |
| Modifications and issues with the Wraith III model's axle, brakes, and suspension. | 22th Sep 1937 | Box 6 \ 6 06-page320 | |
| Ongoing engineering issues and proposed modifications for various vehicle components. | 22th Sep 1937 | Box 6 \ 6 06-page321 | |
| Investigations and suggestions for various engine and drivetrain components. | 28th Sep 1937 | Box 6 \ 6 06-page322 | |
| Modification to the Wraith III chassis governor and distributor drive, requesting blueprints. | 28th Sep 1937 | Box 6 \ 6 06-page323 | |
| Complaints and proposed modifications for a specific vehicle's chassis. | 29th Sep 1937 | Box 6 \ 6 06-page324 | |
| Engine performance, suspension, electrical faults, and bodywork issues on Wraith cars. | 29th Sep 1937 | Box 6 \ 6 06-page325 | |
| Petrol pump warning lights, carburetter modifications, and tyre quietness on Wraith cars. | 29th Sep 1937 | Box 6 \ 6 06-page326 | |
| Instructional memo regarding blueprints and the production of parts for a Wraith III Chassis Spring Drive. | 29th Sep 1937 | Box 6 \ 6 06-page327 | |
| The assembly of three Wraith III units (Nos. 7, 8, and 9). | 30th Sep 1937 | Box 6 \ 6 06-page328 | |
| Various vehicle complaints and planned modifications. | 29th Sep 1937 | Box 6 \ 6 06-page329 | |
| Ongoing experiments and fixes for engine, electrical, and bodywork issues on Wraith cars. | 29th Sep 1937 | Box 6 \ 6 06-page330 | |
| Petrol pump warning lights, carburettor modifications, and tyre quietness. | 29th Sep 1937 | Box 6 \ 6 06-page331 | |
| Investigation into engine misfires on a Wraith model, involving the testing of different ignition coils. | 30th Sep 1937 | Box 6 \ 6 06-page332 | |
| Instruction regarding blueprints and a List of Parts for the Wraith III Chassis dynamo drive. | 1st Oct 1937 | Box 6 \ 6 06-page333 | |
| Specification page for six electrical sets. | 1st Oct 1937 | Box 6 \ 6 06-page334 | |
| Instructions regarding new blueprints and a List of Parts for the Wraith III Chassis oil filler section. | 1st Oct 1937 | Box 6 \ 6 06-page335 | |
| Changes to the Wraith III chassis rear axle, including stiffened axle shafts and improved clearances. | 10th Oct 1937 | Box 6 \ 6 06-page336 | |
| Specification for the production of 6 Wraith III chassis. | 4th Oct 1937 | Box 6 \ 6 06-page337 | |
| List of modifications and components for rear springs, steering, dashbrackets, and floorboards. | 5th Oct 1937 | Box 6 \ 6 06-page338 | |
| List of parts and operations for various vehicle components including piping, pedals, and dampers. | 5th Oct 1937 | Box 6 \ 6 06-page339 | |
| List of parts and modifications for vehicle components including dampers, suspension, and axles. | 5th Oct 1937 | Box 6 \ 6 06-page340 | |
| List of modifications and incorporations for front brakes, hubs, steering, and rear axle assemblies. | 5th Oct 1937 | Box 6 \ 6 06-page341 | |
| List of specifications and modifications for brake and propeller shaft components. | 5th Oct 1937 | Box 6 \ 6 06-page342 | |
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