| Description | Date | Identifier | |
| Delays in releasing nuts for the rocker cover and the petrol pipe line. | 5th Nov 1938 | Box 108 \ 2 scan0171 | |
| Instructions for the Wraith 'C' Series regarding carburetter drain pipes and the starting handle bracket. | 8th Nov 1938 | Box 108 \ 2 scan0172 | |
| Delays in the release of parts for the Wraith Chassis 'C' Series. | 14th Nov 1938 | Box 108 \ 2 scan0173 | |
| Release date for Exhaust System and Water Pump sections. | 31th Dec 1938 | Box 108 \ 2 scan0174 | |
| The issuance status of outstanding sections for the Wraith 'C' Series, particularly the Propeller Shaft. | 17th Nov 1938 | Box 108 \ 2 scan0175 | |
| Material release schedule and outstanding items for the Wraith 'C' Series production. | 24th Nov 1938 | Box 108 \ 2 scan0176 | |
| Material and modifications for the Wraith 'C' Series, detailing parts affected in different departments. | 25th Nov 1938 | Box 108 \ 2 scan0177 | |
| Internal report detailing part lists, design changes, and tooling updates for various departments. | 25th Nov 1938 | Box 108 \ 2 scan0178 | |
| Requesting a reply regarding a price reduction for Shock Damper Bellows for the Wraith III 'C' Series. | 25th Nov 1938 | Box 108 \ 2 scan0179 | |
| List of mileage figures for Wraith vehicles up to the Motor Show on October 24th, 1938. | 29th Nov 1938 | Box 108 \ 2 scan0180 | |
| Instructing the Repair Department to carry out urgent modifications on an experimental Wraith chassis 25.G.VI. | 30th Nov 1938 | Box 108 \ 2 scan0181 | |
| Instruction to release the Distributor and its connected parts for the first 100 Wraith 'C' Series chassis. | 8th Dec 1938 | Box 108 \ 2 scan0182 | |
| The change of flywheel marking from B.A.I. to IGN for the Wraith and Bentley V models. | 9th Dec 1938 | Box 108 \ 2 scan0183 | |
| Questioning the maximum speed limitation of Wraith cars. | 13th Dec 1938 | Box 108 \ 2 scan0184 | |
| Criticisms regarding the performance and springing of Wraith cars. | 13th Dec 1938 | Box 108 \ 2 scan0185 | |
| Faults found with a car, including governor, springing, and gearbox issues. | 13th Dec 1938 | Box 108 \ 2 scan0186 | |
| Modifications to a Wraith car's steering and gearbox. | 19th Dec 1938 | Box 108 \ 2 scan0187 | |
| Requesting to fit a Delco distributor and necessary change over parts to chassis 28.G.VI. | 19th Dec 1938 | Box 108 \ 2 scan0188 | |
| Status of modifications for Wraith Export Chassis. | 3rd Jan 1939 | Box 108 \ 2 scan0189 | |
| Checklist table tracking the status of work completed on various vehicle components for different chassis series. | 4th Jan 1939 | Box 108 \ 2 scan0190 | |
| List of modifications to be carried out on the Wraith chassis. | 4th Jan 1939 | Box 108 \ 2 scan0191 | |
| Inspection procedures for wheel nuts and fan clearance. | 4th Jan 1939 | Box 108 \ 2 scan0192 | |
| Issuing instructions for exhaust fittings and petrol pump parts for the Wraith 'C' Series chassis. | 5th Jan 1939 | Box 108 \ 2 scan0193 | |
| List of retrospective design modifications for the Wraith chassis and associated costs. | 7th Jan 1939 | Box 108 \ 2 scan0194 | |
| Analysis of Wraith engine characteristics, comparing its performance with a Humber 'Super Snipe' and evaluating different camshaft and induction systems. | 13th Jan 1939 | Box 108 \ 2 scan0195 | |
| Technical summary comparing Bentley and Wraith camshafts, exhaust systems, and carburettors. | 13th Jan 1939 | Box 108 \ 2 scan0196 | |
| Test report comparing four different camshafts on a single engine. | 16th Jan 1939 | Box 108 \ 2 scan0197 | |
| The testing of various camshafts and induction systems, analysing their effect on engine noise and performance. | 16th Jan 1939 | Box 108 \ 2 scan0198 | |
| The concluding page of a report on a camshaft comparison and compression ratio. | 16th Jan 1939 | Box 108 \ 2 scan0199 | |
| Graph comparing the power output of a Bentley III engine using different induction and exhaust systems. | 16th Jan 1939 | Box 108 \ 2 scan0200 | |
| Graph comparing the power output and I.B.M.E.P. of different induction and exhaust systems on a Bentley III engine. | 16th Jan 1939 | Box 108 \ 2 scan0201 | |
| Graph comparing power curves for different induction and exhaust systems on a Bentley III engine. | 16th Jan 1939 | Box 108 \ 2 scan0202 | |
| Power curve graph comparing two different camshafts for a Bentley III engine. | 16th Jan 1939 | Box 108 \ 2 scan0203 | |
| Graph comparing the power performance of two different camshafts for a Bentley III engine. | 16th Jan 1939 | Box 108 \ 2 scan0204 | |
| Camshaft comparison power curve graph for a Bentley III engine using Ethyl petrol. | 16th Jan 1939 | Box 108 \ 2 scan0205 | |
| Power curve graph comparing the performance of different induction and exhaust systems on a Bentley III engine. | 16th Jan 1939 | Box 108 \ 2 scan0206 | |
| Specification sheet detailing the data for the Humber Super Snipe. | 16th Jan 1939 | Box 108 \ 2 scan0207 | |
| Record of steering ratio and vehicle weight distribution, with a note on dynamometer power curves. | 16th Jan 1939 | Box 108 \ 2 scan0208 | |
| Dynamometer test chart for a Humber Super Snipe showing corrected BHP vs engine RPM. | 6th Jan 1939 | Box 108 \ 2 scan0209 | |
| Performance calculation sheet for the Humber Super Snipe, analyzing windage and horsepower requirements. | 16th Jan 1939 | Box 108 \ 2 scan0210 | |
| Road wheel horsepower comparison graph between a Humber Super Snipe and a Wraith 27 G VI. | 13th Jan 1939 | Box 108 \ 2 scan0211 | |
| List of modifications and fittings for Wraith car 25.G.VI. | 17th Jan 1939 | Box 108 \ 2 scan0212 | |
| Proposed adjustments to steering positions and pedal placement for various car models. | 17th Jan 1939 | Box 108 \ 2 scan0213 | |
| The replacement of a camshaft on chassis 25.G.VI (No.8 Unit). | 2nd Feb 1939 | Box 108 \ 2 scan0214 | |
| Material modification for the Wraith Servo system. | 3rd Feb 1939 | Box 108 \ 2 scan0215 | |
| Performance improvement experiments on the Wraith model, focusing on the exhaust system, pistons, and camshaft. | 8th Feb 1939 | Box 108 \ 2 scan0216 | |
| Policy discussion on improving the Wraith's performance versus other qualities like silence and smoothness due to competition. | 8th Feb 1939 | Box 108 \ 2 scan0217 | |
| The introduction of a Bentley V type Camshaft for the Wraith 'G' Series. | 17th Feb 1939 | Box 108 \ 2 scan0218 | |
| The performance of the Wraith and arranging a discussion for improvements. | 8th Feb 1939 | Box 108 \ 2 scan0219 | |
| Delay in deciding on Wraith performance alterations pending the completion of tests. | 17th Feb 1939 | Box 108 \ 2 scan0220 | |
| Forwarding a note from Mr. Caswell giving his impressions of the Wraith car. | 11th Mar 1939 | Box 108 \ 2 scan0221 | |
| Driving impressions and feedback on a 28.G. Wraith car after 3,000 miles. | 10th Mar 1939 | Box 108 \ 2 scan0222 | |
| Steering characteristics, specifically the 'nibbling' issue, comparing US and UK car models. | 10th Mar 1939 | Box 108 \ 2 scan0223 | |
| Performance review of the Wraith model's springing and roadability. | 10th Mar 1939 | Box 108 \ 2 scan0224 | |
| Sending Wraith car 25.G.VI into the fitting shop for a Humber type exhaust system. | 14th Mar 1939 | Box 108 \ 2 scan0225 | |
| Modifications to convert a Wraith engine to a 3¼' bore for a Rationalised Programme. | 18th Mar 1939 | Box 108 \ 2 scan0226 | |
| Decision on introducing engine alterations for the Wraith performance model. | 17th Feb 1939 | Box 108 \ 2 scan0227 | |
| Production schedule and material scrap costs for the Wraith 'C' Series. | 22th Mar 1939 | Box 108 \ 2 scan0228 | |
| Engine repair instructions for a Wraith III No. 3 unit. | 22th Mar 1939 | Box 108 \ 2 scan0229 | |
| Modifications to engine and gearbox mountings on car 24.O.6. | 27th Mar 1939 | Box 108 \ 2 scan0230 | |
| Performance comparison test between two Wraith models, focusing on acceleration and engine smoothness. | 28th Mar 1939 | Box 108 \ 2 scan0231 | |
| The material release schedule for the Wraith 'D' Series. | 28th Mar 1939 | Box 108 \ 2 scan0232 | |
| Test run report detailing issues with carburation and the clutch. | 12th Apr 1939 | Box 108 \ 2 scan0233 | |
| Comparative performance and oil temperature test report for two vehicles at Brooklands. | 25th Apr 1939 | Box 108 \ 2 scan0234 | |
| Oil temperature test results from 7 consecutive laps, comparing engine performance with a Tin bottom half versus an Aluminium bottom half. | 25th Apr 1939 | Box 108 \ 2 scan0235 | |
| Comparative water temperature tests on two Wraith cars, 29.G.VI and 28.G.VI. | 3rd May 1939 | Box 108 \ 2 scan0236 | |
| Complaints regarding insufficient undershielding on the Wraith, causing mud to cover the engine. | 3rd May 1939 | Box 108 \ 2 scan0237 | |
| Responding to a complaint about ineffective undershielding on a Wraith model, asking for the location of mud entry. | 11th May 1939 | Box 108 \ 2 scan0238 | |
| Request to manufacture a set of undershields for car 28.G.VI based on verbal instructions. | 11th May 1939 | Box 108 \ 2 scan0239 | |
| Requesting a trial set be made of a cheaper dynamo drive scheme (SCD.1040) for the Wraith or B.V. model. | 13th May 1939 | Box 108 \ 2 scan0240 | |
| Engine cleanliness issues and the feasibility of an under tray for the Wraith model. | 18th May 1939 | Box 108 \ 2 scan0241 | |
| Multiple faults found in a vehicle after a weekend run. | 5th Jun 1939 | Box 108 \ 2 scan0242 | |
| Parts and blueprint list for the Wraith III chassis, covering dynamo, crankcase, and wheelcase sections. | 7th Jun 1939 | Box 108 \ 2 scan0243 | |
| Parts list grouped by section, detailing part numbers, names, and quantities. | 7th Jun 1939 | Box 108 \ 2 scan0244 | |
| Parts list and instruction memo with quantities for various components. | 7th Jun 1939 | Box 108 \ 2 scan0245 | |
| Engine misfiring issue caused by a faulty Lucas distributor, which was resolved by fitting a Delco distributor. | 10th Jun 1939 | Box 108 \ 2 scan0246 | |
| Comparative report on petrol consumption and performance tests of cars 3.B.50 and 28.G.VI at Brooklands. | 10th Jun 1939 | Box 108 \ 2 scan0247 | |
| Comparison of acceleration times and lap speeds for different exhaust and carburetor configurations. | 10th Jul 1939 | Box 108 \ 2 scan0248 | |
| Calculation of the moment of inertia and centre of gravity for the 28.G model. | 10th Jul 1939 | Box 108 \ 2 scan0249 | |
| Diagram and calculations for vehicle moment of inertia and weight distribution. | 10th Jul 1939 | Box 108 \ 2 scan0250 | |
| Investigation into faulty ignition causing misfires on car 25.G.VI. | 17th Jul 1939 | Box 108 \ 2 scan0251 | |
| Moments of inertia and centres of gravity for car models 28.G.VI and 9.B.V. | 24th Jul 1939 | Box 108 \ 2 scan0252 | |
| Specifications for car weight, wheelbase, and center of gravity for model 10.B.V. | 24th Jul 1939 | Box 108 \ 2 scan0253 | |
| The progress and time taken for modifications to Wraith and Bentley chassis. | 1st Jul 1939 | Box 108 \ 2 scan0254 | |
| The status of steering modifications for 200 Bentley chassis. | 1st Jul 1939 | Box 108 \ 2 scan0255 | |
| The loan and handover of experimental cars during a camp. | 12th Aug 1939 | Box 108 \ 2 scan0256 | |
| Outstanding faults with the Wraith Chassis based on owner complaints. | 28th Aug 1939 | Box 108 \ 2 scan0257 | |
| Electrical failures including faulty coils, dynamo regulators, and ammeter short circuits. | 28th Aug 1939 | Box 108 \ 2 scan0258 | |
| Bar chart report summarizing customer complaints for the Wraith model by component. | 1st Aug 1939 | Box 108 \ 2 scan0259 | |
| Fault analysis chart for the Wraith model, listing issues and their frequency. | 1st Aug 1939 | Box 108 \ 2 scan0260 | |
| Fault analysis chart for the Wraith model, categorizing issues by system. | 1st Aug 1939 | Box 108 \ 2 scan0261 | |
| List of reported faults and modifications for the Wraith model, categorised by system. | 1st Aug 1939 | Box 108 \ 2 scan0262 | |
| Diagram concerning the sticking of the accelerator pedal due to a fouling plate on the Wraith model. | 15th Apr 1940 | Box 108 \ 2 scan0263 | |
| Notification of a price increase for Wraith Cars, listing old and new prices for various models. | 15th Apr 1940 | Box 108 \ 2 scan0264 | |
| Letter to Hinckley Technical College regarding the loan of a Bentley engine for research purposes. | 4th Jul 1940 | Box 108 \ 2 scan0265 | |
| Letter from Hinckley Technical College regarding the loan of an engine for a test bench. | 8th Jul 1940 | Box 108 \ 2 scan0266 | |
| Letter to Hinckley Technical College regarding an alteration to the type of engine being loaned. | 16th Jul 1940 | Box 108 \ 2 scan0267 | |
| Secret internal communication requesting the early release of a Wraith car for reconditioning and demonstration purposes. | 26th Jul 1938 | Box 108 \ 3 scan0001 | |
| Secret memo discussing the release of a Wraith for demonstration and keeping a 26.G. for experimental work. | 28th Jul 1938 | Box 108 \ 3 scan0002 | |
| Acquisition and preparation of a Wraith Limousine for demonstration purposes. | 29th Jul 1938 | Box 108 \ 3 scan0003 | |
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