| Description | Date | Identifier | |
| Secret memorandum on production issues and complaints concerning the first 100 Wraith cars. | 25th Apr 1938 | Box 108 \ 2 scan0071 | |
| List of proposed modifications for a vehicle, including the choke, brakes, chassis, and engine components. | 25th Apr 1938 | Box 108 \ 2 scan0072 | |
| Four potential modifications for an order of 200 sets of Wraith material. | 25th Apr 1938 | Box 108 \ 2 scan0073 | |
| Secret memo from Sg. to Rm. regarding actions required for the Wraith model concerning distributors, engine vibration, and steering pivots. | 25th Apr 1938 | Box 108 \ 2 scan0074 | |
| Development issues with the R.R. Distributor, engine vibration, and steering pivots for the Wraith model. | 26th Apr 1938 | Box 108 \ 2 scan0075 | |
| Production of metal patterns for the Wraith model's engine components. | 26th Apr 1938 | Box 108 \ 2 scan0076 | |
| Production report on the Wraith model, detailing issues and actions for various components. | 27th Apr 1938 | Box 108 \ 2 scan0077 | |
| Order for Wraith sets and the design of threaded shackles for the rear spring. | 27th Apr 1938 | Box 108 \ 2 scan0078 | |
| Instructions for material release and modifications for the Wraith 'B' Series, chassis 101-300. | 29th Apr 1938 | Box 108 \ 2 scan0079 | |
| Production holds and component modifications for brakes and propeller shafts. | 29th Apr 1938 | Box 108 \ 2 scan0080 | |
| Change to the Wraith III ignition timing. | 2nd May 1938 | Box 108 \ 2 scan0081 | |
| Proposed oil-resistant rubber shield for the Wraith III model to prevent oil drainage. | 22th Apr 1938 | Box 108 \ 2 scan0082 | |
| Requesting instructions for two drive configurations for a Torsional Indicator on a Wraith III to investigate camwheel wear. | 2nd May 1938 | Box 108 \ 2 scan0083 | |
| List of faults and comments on a car, including various squeaks, rattles, and leaks. | 9th May 1938 | Box 108 \ 2 scan0084 | |
| List of jobs to be carried out on Wraith car 25.G.VI. | 12th May 1938 | Box 108 \ 2 scan0085 | |
| Recent alterations to the Wraith III model which have delayed production and affected costs. | 14th May 1938 | Box 108 \ 2 scan0086 | |
| Production alterations, delays, and parts for Wraith 'A' and 'B' series vehicles. | 16th May 1938 | Box 108 \ 2 scan0087 | |
| Oil level behavior in Wraith III & Bentley III engines, focusing on the risk of over-oiling. | 16th May 1938 | Box 108 \ 2 scan0088 | |
| Recommending the adoption of a trap door design for Wraith III and Bentley III models. | 16th Jun 1938 | Box 108 \ 2 scan0089 | |
| Comparison of the number of engine parts for the Wraith and Phantom III models. | 16th May 1938 | Box 108 \ 2 scan0090 | |
| Parts quantity comparison list between the Phantom III and Wraith III models. | 17th May 1938 | Box 108 \ 2 scan0091 | |
| Testing and manufacturing rear end oil retainers for Wraith & Bentley models. | 17th May 1938 | Box 108 \ 2 scan0092 | |
| The curb weights for the Wraith and 25/30 chassis. | 17th May 1938 | Box 108 \ 2 scan0093 | |
| Modification instructions for the Wraith III engine oil gallery pipe. | 31th Aug 1937 | Box 108 \ 2 scan0094 | |
| Comparative table of the number of engine parts for Wraith, Phantom III, B.50-6, and B.50-8 models. | 1st Jun 1938 | Box 108 \ 2 scan0095 | |
| Comparison table of part counts for Wraith, Phantom III, B.50-6, and B.50-8 engines. | 1st Jun 1938 | Box 108 \ 2 scan0096 | |
| Arrangements for sketching a 25/30 chassis during the Whitsun holidays. | 1st Jun 1938 | Box 108 \ 2 scan0097 | |
| Requesting L.O.P's to be quoted from a note by W. Bell to identify an engine used in tests. | 8th Jun 1938 | Box 108 \ 2 scan0098 | |
| The Centre of Gravity Test for the Wraith III No. 2 Engine, listing included components. | 3rd Jun 1938 | Box 108 \ 2 scan0099 | |
| Diagram showing the results of Centre of Gravity tests for a Wraith III No. 2 engine crankcase. | 9th Jun 1938 | Box 108 \ 2 scan0100 | |
| List of fitting shop jobs for a Wraith car 28.G.VI. | 9th Jun 1938 | Box 108 \ 2 scan0101 | |
| Drawing E.CD.669, a 1/4 scale picture drawing showing the arrangement of the Wraith III engine unit. | 9th Jun 1938 | Box 108 \ 2 scan0102 | |
| Drawing for the arrangement of the Wraith III engine unit. | 9th Jun 1938 | Box 108 \ 2 scan0103 | |
| The cancellation of two items and the fitting of new parts for the Wraith Car 28.G.VI. | 10th Jun 1938 | Box 108 \ 2 scan0104 | |
| Specification comparison for 8 and 12 cylinder 'Project Line 8' engines. | 17th Jun 1938 | Box 108 \ 2 scan0105 | |
| The proposed fitting of a Wraith engine to chassis 21.G.IV, including required parts and modifications. | 17th Jun 1938 | Box 108 \ 2 scan0106 | |
| Build specification for a Wraith III No.10 engine unit. | 17th Jun 1938 | Box 108 \ 2 scan0107 | |
| Request for a comparative cost estimate on B.60 type rocker cover nuts with Nenprene rubber bushes. | 17th Jun 1938 | Box 108 \ 2 scan0108 | |
| Test report from a 250-mile weekend run detailing various vehicle faults. | 20th Jun 1938 | Box 108 \ 2 scan0109 | |
| Urgent internal memo requesting modifications to a dynamo drive and connection shaft for a Wraith III gear wear trial. | 20th Jun 1938 | Box 108 \ 2 scan0110 | |
| Instructions to replace a Venturi cylinder head with a standard one and replace rear end felts due to a suspected lack of power. | 20th Jun 1938 | Box 108 \ 2 scan0111 | |
| Required repairs for a Wraith car (25.G.VI) with issues in the gearbox, rear axle, and exhaust silencer. | 20th Jun 1938 | Box 108 \ 2 scan0112 | |
| Request to release road wheels and propeller shafts for Wraith 'A' and 'B' series chassis. | 22th Jun 1938 | Box 108 \ 2 scan0113 | |
| Under-utilization of Experimental Wraith Cars and suggesting a solution. | 23th Jun 1938 | Box 108 \ 2 scan0114 | |
| Sending a Wraith car to the fitting shop for examination of a gearbox oil leak. | 27th Jun 1938 | Box 108 \ 2 scan0115 | |
| Requesting an inspection of a loose crank slipper wheel on a Wraith car to investigate a gear rattle. | 28th Jun 1938 | Box 108 \ 2 scan0116 | |
| Urgent internal request to order dynamo driving blocks with two different hardness levels for vibration testing. | 1st Jul 1938 | Box 108 \ 2 scan0117 | |
| Secret internal memo discussing the acquisition and future use of a Wraith experimental car. | 4th Jul 1938 | Box 108 \ 2 scan0118 | |
| Secret memo regarding the handover of a Wraith car for mileage testing before its introduction. | 6th Jul 1938 | Box 108 \ 2 scan0119 | |
| Modified flexible coupling for the Wraith III and Bentley III dynamo drive, aimed at increasing torsional flexibility to reduce noise and wear. | 12th Jul 1938 | Box 108 \ 2 scan0120 | |
| Progress report on the development status of various parts for the Wraith 'B' Series. | 10th Aug 1938 | Box 108 \ 2 scan0121 | |
| Modifications and standardisation issues for the Wraith model. | 12th Aug 1938 | Box 108 \ 2 scan0122 | |
| Explaining design improvements for the Wraith model regarding the servo brake layout and chassis size. | 16th Aug 1938 | Box 108 \ 2 scan0123 | |
| Requesting the return of a typescript regarding the Wraith introduction. | 17th Aug 1938 | Box 108 \ 2 scan0124 | |
| List of jobs to be performed on a Wraith Car 25.G.VI. | 17th Aug 1938 | Box 108 \ 2 scan0125 | |
| Modifications for the Wraith car, including rear axle packing pieces and a new clutch operation method. | 17th Aug 1938 | Box 108 \ 2 scan0126 | |
| Wraith model, questioning the change from a worm gear to a skew gear for the distributor and oil pump. | 17th Aug 1938 | Box 108 \ 2 scan0127 | |
| The testing and modifications of the first 24 Wraith chassis. | 17th Aug 1938 | Box 108 \ 2 scan0128 | |
| Chassis performance, detailing issues and improvements over previous models. | 17th Aug 1938 | Box 108 \ 2 scan0129 | |
| Requesting a list of improvements for the next series of 'Raith' car material before ordering in November. | 25th Aug 1938 | Box 108 \ 2 scan0130 | |
| Cover note for a memo regarding the tendency for parts to go into production before being fitted to experimental cars. | 29th Aug 1938 | Box 108 \ 2 scan0131 | |
| Unauthorized modifications to the Wraith model and emphasizing adherence to standardization sheets. | 12th Aug 1938 | Box 108 \ 2 scan0132 | |
| The replacement of wheel discs and nuts for the Wraith III model, including a list of new features. | 1st Sep 1938 | Box 108 \ 2 scan0133 | |
| General description of the steering system on the 25/30 HP Wraith and instructions for removing the steering column and box. | 2nd Sep 1938 | Box 108 \ 2 scan0134 | |
| Cross-section drawing of a Steering Box & Cam & Roller Mechanism. | 2nd Sep 1938 | Box 108 \ 2 scan0135 | |
| Cross-sectional diagrams of a mechanical assembly featuring a pendulum lever. | 2nd Sep 1938 | Box 108 \ 2 scan0136 | |
| Instructions for dismantling and adjusting the steering system. | 2nd Sep 1938 | Box 108 \ 2 scan0137 | |
| Instructions for steering adjustments, including cam location, bearing tightness, and mesh with the roller. | 2nd Sep 1938 | Box 108 \ 2 scan0138 | |
| Instructions for steering column installation, adjustments, and wheel alignment. | 2nd Sep 1938 | Box 108 \ 2 scan0139 | |
| Instructions for fitting and adjusting the side and cross steering tubes and joints. | 2nd Sep 1938 | Box 108 \ 2 scan0140 | |
| Instructions for steering system lubrication and the removal of the pivot pin and bearings. | 2nd Sep 1938 | Box 108 \ 2 scan0141 | |
| Instructions for removing the front suspension springs. | 2nd Sep 1938 | Box 108 \ 2 scan0142 | |
| Instructions for removing front springs, needle roller bearings, and fulcrum pins for upper and lower triangle levers. | 2nd Sep 1938 | Box 108 \ 2 scan0143 | |
| Instructions for fitting adjusting washers, the operation of front shock dampers, and related service maintenance. | 2nd Sep 1938 | Box 108 \ 2 scan0144 | |
| Service maintenance instructions for the damper governor system and front suspension. | 2nd Sep 1938 | Box 108 \ 2 scan0145 | |
| Instructions for the removal and dismantling of the rear axle pinion bearing assembly for the 25/30 Wraith chassis. | 2nd Sep 1938 | Box 108 \ 2 scan0146 | |
| Instructions for the removal and replacement of pinion bearings and rear axle drivers. | 2nd Sep 1938 | Box 108 \ 2 scan0147 | |
| Establishing the official procedure for introducing modifications to the Wraith model using standardisation sheets. | 6th Sep 1938 | Box 108 \ 2 scan0148 | |
| Secret memo requesting a performance comparison between the 25/30 model and the new Wraith. | 6th Sep 1938 | Box 108 \ 2 scan0149 | |
| Performance comparison memo of the Wraith model against the 25/30, covering acceleration, speed, handling, and gearbox improvements. | 7th Sep 1938 | Box 108 \ 2 scan0150 | |
| Internal circulation memo requesting the return of a document copy. | 14th Sep 1938 | Box 108 \ 2 scan0151 | |
| The replacement of hard dynamo coupling rubbers with softer ones on Wraith III units. | 14th Sep 1938 | Box 108 \ 2 scan0152 | |
| Internal query about the Wraith's ground clearance, turning circle, and fuel consumption, with handwritten answers. | 14th Sep 1938 | Box 108 \ 2 scan0153 | |
| List of possible 'C' series modifications for the Wraith model. | 16th Sep 1938 | Box 108 \ 2 scan0154 | |
| List of certain and probable improvements for the Wraith 'C' Series. | 16th Sep 1938 | Box 108 \ 2 scan0155 | |
| List of possible component and system modifications with handwritten annotations indicating their status. | 16th Sep 1938 | Box 108 \ 2 scan0156 | |
| Specification sheet for the Wraith model detailing turning circle, ground clearance, and consumption figures. | 16th Sep 1938 | Box 108 \ 2 scan0157 | |
| Comparative data table of various cars, detailing weight, speed, horsepower, and wind resistance. | 15th Aug 1938 | Box 108 \ 2 scan0158 | |
| Schedule and alterations for the Wraith 'C' Series chassis detail drawings. | 22th Sep 1938 | Box 108 \ 2 scan0159 | |
| Confirming a list of new and old standardized parts for the Wraith 'C' Series will be arranged. | 29th Sep 1938 | Box 108 \ 2 scan0160 | |
| Work instructions for modifications to a Wraith car 25.G.VI, including brake, exhaust, and clutch mechanisms. | 30th Sep 1938 | Box 108 \ 2 scan0161 | |
| Querying a discrepancy in the ground clearance measurement for the Wraith model. | 5th Oct 1938 | Box 108 \ 2 scan0162 | |
| Confirming the 8-inch ground clearance for the Wraith model when empty. | 6th Oct 1938 | Box 108 \ 2 scan0163 | |
| Instruction to examine a leaking gearbox and fit a new clutch lining on a Wraith car. | 13th Oct 1938 | Box 108 \ 2 scan0164 | |
| Various performance and fault issues with a car under investigation. | 24th Oct 1938 | Box 108 \ 2 scan0165 | |
| Proposal of work to be carried out on Wraith car 25.G.VI. | 28th Oct 1938 | Box 108 \ 2 scan0166 | |
| Report listing six specific faults and issues observed on a vehicle. | 31th Oct 1938 | Box 108 \ 2 scan0167 | |
| Standardization of parts for the Wraith 'C' Series. | 4th Nov 1938 | Box 108 \ 2 scan0168 | |
| Standardization of the brake damper for the Wraith 'C' Series. | 5th Nov 1938 | Box 108 \ 2 scan0169 | |
| Release instructions for the Wraith 'C' Series - 300 Chassis, detailing exceptions from the 'B' series. | 5th Nov 1938 | Box 108 \ 2 scan0170 | |
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