| Description | Date | Identifier | |
| Communication regarding the design of a ball pin attachment for the front shock absorber on a 40/50 HP chassis. | 26th Apr 1919 | West Wittering \ C \ June1919 Scan21 | |
| Design of battery connections and the selection of Chloride and Tudor as battery cell suppliers. | 11th Jun 1919 | West Wittering \ C \ June1919 Scan22 | |
| Proper construction and installation of a battery, its terminals, and associated wiring. | 4th Jun 1919 | West Wittering \ C \ June1919 Scan23 | |
| Reliability and guarantee policy for electrical equipment and parts. | 4th Jun 1919 | West Wittering \ C \ June1919 Scan24 | |
| Questioning the use of aluminum for a starter motor brush holder and suggesting an alternative design. | 10th Jun 1919 | West Wittering \ C \ June1919 Scan25 | |
| Instruction from Mr. Royce to create three sets of back axle bevels for the 20 HP chassis. | 19th Jun 1919 | West Wittering \ C \ June1919 Scan26 | |
| Telegram received by telephone from St Johns, Newfoundland, concerning fuel mixture issues for Vickers. | 12th Jun 1919 | West Wittering \ C \ June1919 Scan27 | |
| Telegram received by telephone regarding the use of Shell one fuel without benzol. | 12th Jun 1919 | West Wittering \ C \ June1919 Scan28 | |
| Design changes for hubs on Michelin disc wheels for the 40/50 HP chassis. | 6th Mar 1919 | West Wittering \ C \ March1919 Scan0 | |
| From 'E' to 'BY' providing feedback on design points for wheel hubs and bearings. | 17th Mar 1919 | West Wittering \ C \ March1919 Scan1 | |
| Design modifications for the connecting rods on a 40/50 HP chassis. | 6th Mar 1919 | West Wittering \ C \ March1919 Scan2 | |
| Gear change mechanisms, including a cycle change gear concept and a free wheel arrangement for the new 20 HP car. | 11th Mar 1919 | West Wittering \ C \ March1919 Scan3 | |
| Continued discussion on gear changing, proposing a positive jaw clutch to improve a free-wheel design. | 11th Mar 1919 | West Wittering \ C \ March1919 Scan4 | |
| Proposal for an experimental clutch system using a combination of free wheel, jaw clutch, and friction clutch mechanisms operated electrically. | 11th Mar 1919 | West Wittering \ C \ March1919 Scan5 | |
| Proposed new carburetter design, patent considerations, and a comparison to the existing model. | 11th Mar 1919 | West Wittering \ C \ March1919 Scan6 | |
| Design of Michelin detachable wheels for a 40/50 HP chassis. | 14th Mar 1919 | West Wittering \ C \ March1919 Scan7 | |
| Development and proposed testing of a new style of wheel stud for heavy-duty use with twin wheels. | 14th Mar 1919 | West Wittering \ C \ March1919 Scan8 | |
| Alternative hub designs, axle nuts, and the need for directional threads. | 14th Mar 1919 | West Wittering \ C \ March1919 Scan9 | |
| Design of a proposed carburetter for chassis X.3511. | 17th Mar 1919 | West Wittering \ C \ March1919 Scan10 | |
| Preliminary arrangement of a valance for a 20 HP chassis. | 17th Mar 1919 | West Wittering \ C \ March1919 Scan11 | |
| Telegram received by telephone discussing a spherical control and a leather scheme for an existing chassis. | 18th Mar 1919 | West Wittering \ C \ March1919 Scan12 | |
| Design details and manufacturing process for a 20 HP chassis piston and connecting rod. | 26th Mar 1919 | West Wittering \ C \ March1919 Scan13 | |
| Unsuitable Buick car obtained for experiments, specifically noting the incorrect clutch type. | 24th Mar 1919 | West Wittering \ C \ March1919 Scan14 | |
| Request to send a starter motor for the 40/50 HP chassis to West Wittering. | 25th Mar 1919 | West Wittering \ C \ March1919 Scan15 | |
| The dynamo and motor windings for the 20 HP chassis. | 24th Mar 1919 | West Wittering \ C \ March1919 Scan16 | |
| Requesting a test to compare petrol consumption between high and low geared back axles. | 28th Mar 1919 | West Wittering \ C \ March1919 Scan17 | |
| Sourcing temperature recorders for cars, involving an instruction to pose as a customer to test supply. | 29th Mar 1919 | West Wittering \ C \ March1919 Scan18 | |
| Design change and removal instructions for the 20 HP chassis undershield. | 1st Mar 1919 | West Wittering \ C \ March1919 Scan19 | |
| The alteration of undershield stiffeners and proceeding with work on the engine. | 1st Mar 1919 | West Wittering \ C \ March1919 Scan20 | |
| Defining light, normal, and overload conditions for the 20 HP chassis to ensure correct springing. | 29th Mar 1919 | West Wittering \ C \ March1919 Scan21 | |
| Requesting a dynamo model with new windings be sent to West Wittering, along with weight information. | 31th Mar 1919 | West Wittering \ C \ March1919 Scan22 | |
| Requesting design information and best practices for an electric starter motor on a 20 HP engine. | 1st Apr 1919 | West Wittering \ C \ March1919 Scan23 | |
| Notes from a visit to Mr. Royce regarding the 20 HP and new 50 HP chassis. | 6th May 1919 | West Wittering \ C \ May1919 Scan0 | |
| Dynamo cutout for the 20 HP chassis and modifications for Michelin wheels. | 1st May 1919 | West Wittering \ C \ May1919 Scan1 | |
| Omissions in the blueprint for 40/50 HP progressive friction shock dampers and requesting completion of the design. | 7th May 1919 | West Wittering \ C \ May1919 Scan4 | |
| Electrical quantities and starting torque for the 20 HP starting motor. | 7th May 1919 | West Wittering \ C \ May1919 Scan5 | |
| Outlining the policy to use hand-operated radiator louvres combined with a thermometer for the immediate future. | 1st May 1919 | West Wittering \ C \ May1919 Scan6 | |
| Paint colour specimens for a 40/50 HP chassis, detailing Mr. Royce's preferences for a warm buff colour and black leather upholstery. | 7th May 1919 | West Wittering \ C \ May1919 Scan7 | |
| 'Goshawk' main oil feed and other details, referencing drawing LeC.1083. | 7th May 1919 | West Wittering \ C \ May1919 Scan8 | |
| Model water pump rotor for an 'Eagle' engine that needs to be rescued from scrap material. | 1st May 1919 | West Wittering \ C \ May1919 Scan9 | |
| Chart of six numbered paint swatches in various shades of yellow and brown, with their handwritten pigment compositions. | 19th May 1919 | West Wittering \ C \ May1919 Scan10 | |
| Details for the 40/50 HP radiator shutters and control mechanism. | 19th May 1919 | West Wittering \ C \ May1919 Scan11 | |
| Design improvement for 40/50 HP chassis pistons by using concave crowns to reduce knocks. | 19th May 1919 | West Wittering \ C \ May1919 Scan12 | |
| Chassis wiring scheme with distribution board and an alternative using a Lucas switch-box. | 1st May 1919 | West Wittering \ C \ May1919 Scan13 | |
| Mr. Royce's recommendation for wiring the starter switch in series to simplify connections. | 17th May 1919 | West Wittering \ C \ May1919 Scan14 | |
| Assembly breakdown schedule for various AW/AD053/S police car models. | 20th May 1919 | West Wittering \ C \ May1919 Scan15 | |
| Instructions for the 20 HP wheelcase and gears, detailing magneto and camshaft drive fittings. | 20th May 1919 | West Wittering \ C \ May1919 Scan16 | |
| From E. to D.A. regarding the delayed dispatch of water pump connections, fan drive, and crankshaft parts. | 1st May 1919 | West Wittering \ C \ May1919 Scan17 | |
| Defects in the Dunlop spanner for detachable wire wheels with suggestions for improvement. | 1st May 1919 | West Wittering \ C \ May1919 Scan18 | |
| Drawing No. LeC.1092 for the control mechanism of radiator shutters. | 26th May 1919 | West Wittering \ C \ May1919 Scan19 | |
| Redesign and material specifications for a ballast resistance unit on a 40/50 HP chassis. | 24th May 1919 | West Wittering \ C \ May1919 Scan20 | |
| Standardisation and cost of the ballast resistance design for an ignition coil. | 24th May 1919 | West Wittering \ C \ May1919 Scan21 | |
| Design flaw (a twist) in the 20 HP bonnet, requiring alteration and a scale model. | 28th May 1919 | West Wittering \ C \ May1919 Scan22 | |
| Adoption of scheme N.58 for Michelin disc wheels on the 20 HP car. | 1st May 1919 | West Wittering \ C \ May1919 Scan23 | |
| Wiring and connections for a Lucas supplementary distributing box. | 28th May 1919 | West Wittering \ C \ May1919 Scan24 | |
| Standardisation of a radiator shutter control, referencing drawing No. Lec.1093. | 1st May 1919 | West Wittering \ C \ May1919 Scan25 | |
| The necessary modifications for producing left-hand steering vehicles. | 2nd Jun 1919 | West Wittering \ C \ May1919 Scan26 | |
| Need for a new chassis for the American factory, as the old design is considered antiquated. | 1st May 1919 | West Wittering \ C \ May1919 Scan27 | |
| Patenting and constructing an electrical mileage register and speed indicator. | 29th May 1919 | West Wittering \ C \ May1919 Scan28 | |
| Instructions on fitting the temperature indicator for the 40/50 HP chassis. | 1st May 1919 | West Wittering \ C \ May1919 Scan29 | |
| Chasing up promised samples of sheet metal terminals for low tension connections. | 2nd Jun 1919 | West Wittering \ C \ May1919 Scan30 | |
| Two schemes for ignition wire fittings on the 40/50 HP chassis. | 1st May 1919 | West Wittering \ C \ May1919 Scan31 | |
| Approval and future design of wiring tubes, including material choices. | 1st May 1919 | West Wittering \ C \ May1919 Scan32 | |
| Mr. Royce's recommendations for the experimental 40/50 HP magneto drive and its fabric couplings. | 2nd Jun 1919 | West Wittering \ C \ May1919 Scan33 | |
| Alterations to a drive design, with sketches of proposed front and rear joints. | 1st May 1919 | West Wittering \ C \ May1919 Scan34 | |
| Copy of a telegram from R. regarding the design of junction blocks for a battery box. | 12th May 1919 | West Wittering \ C \ May1919 Scan35 | |
| Investigation into the internal resistances of various lighting and starting batteries. | 12th May 1919 | West Wittering \ C \ May1919 Scan36 | |
| Comparative analysis of various batteries based on their voltage performance under different loads. | 2nd May 1919 | West Wittering \ C \ May1919 Scan37 | |
| Procedure for testing battery performance by taking voltage readings under a specific current load. | 26th Apr 1917 | West Wittering \ C \ May1919 Scan38 | |
| Test report comparing the performance of various batteries under different loads. | 26th Apr 1917 | West Wittering \ C \ May1919 Scan39 | |
| Test report detailing readings of voltage, current, and resistance for a Chloride battery. | 2nd May 1919 | West Wittering \ C \ May1919 Scan40 | |
| Review and comparison of various battery types, including Lucas, C.A.V., and P.A.R. | 2nd May 1919 | West Wittering \ C \ May1919 Scan41 | |
| Report comparing the performance results of Chloride, Tudor, and Fuller batteries against specifications. | 2nd May 1919 | West Wittering \ C \ May1919 Scan42 | |
| Instruction from Mr. Royce to test if a three-bladed radiator fan performs as well as a six-bladed one. | 16th Jun 1919 | West Wittering \ C \ May1919 Scan43 | |
| Description and specifications of the Lucas E.575 Dynamo. | 7th May 1919 | West Wittering \ C \ May1919 Scan44 | |
| Continued description of a dynamo's operation, detailing its two-pole winding, armature resistance, and the Rotax Leitner regulation principle. | 7th May 1919 | West Wittering \ C \ May1919 Scan45 | |
| Analysis of current behaviour in a dynamo's brushes and armature at various rotational speeds, comparing different dynamo types. | 7th May 1919 | West Wittering \ C \ May1919 Scan46 | |
| Performance comparison and analysis of a dynamo against a C.A.V. model, detailing construction and test results. | 7th May 1919 | West Wittering \ C \ May1919 Scan47 | |
| Report page detailing the voltage and current characteristics of a dynamo connected to a battery. | 7th May 1919 | West Wittering \ C \ May1919 Scan48 | |
| Page describing dynamo performance under various conditions, analysing performance curves and comparing it to other systems. | 7th May 1919 | West Wittering \ C \ May1919 Scan49 | |
| Report comparing performance curves and electrical measurements for a dynamo or shunt machine. | 7th May 1919 | West Wittering \ C \ May1919 Scan50 | |
| Test data and diagram for a Lucas E.575 Dynamo, detailing current measurements at various speeds. | 6th May 1919 | West Wittering \ C \ May1919 Scan51 | |
| Graph of open circuit voltage curves for a Lucas E.575 dynamo with separate excitation. | 5th May 1919 | West Wittering \ C \ May1919 Scan52 | |
| Graph of open circuit volt curves for a Lucas E.575 Dynamo under self-excitation. | 5th May 1919 | West Wittering \ C \ May1919 Scan53 | |
| Graph of output-speed curves for a Lucas E.575 Dynamo with 4, 5, 6, and 7 cells. | 5th May 1919 | West Wittering \ C \ May1919 Scan54 | |
| Graph of output speed curves for a Lucas E.575 Dynamo under various connection configurations. | 6th May 1919 | West Wittering \ C \ May1919 Scan56 | |
| Wiring diagrams for a Lucas E 575 Dynamo, showing different brush connection configurations. | 6th May 1919 | West Wittering \ C \ May1919 Scan57 | |
| Operation and regulation of Smith (T & M) Type A and Type 3A dynamos. | 12th May 1919 | West Wittering \ C \ May1919 Scan58 | |
| Comparative performance analysis of dynamo machines, detailing regulation, construction, and a supplied cut-out. | 12th May 1919 | West Wittering \ C \ May1919 Scan59 | |
| Comparison report on different dynamo machines and their contact surfaces, with a recommendation for further testing. | 12th May 1919 | West Wittering \ C \ May1919 Scan60 | |
| Particulars of Smith (T & M) 12 Volt Chassis Dynamos, Type A and Type 3A. | 12th May 1919 | West Wittering \ C \ May1919 Scan61 | |
| Comparative output curves for C.A.V.NG.R.R., Lucas E.575, and Smith (T&M) Type A dynamos. | 12th May 1919 | West Wittering \ C \ May1919 Scan64 | |
| Questioning the effectiveness of a second fuse added to a new type of Lucas switchboard. | 20th May 1919 | West Wittering \ C \ May1919 Scan65 | |
| On the trial of 'D' type side levers, which are considered a satisfactory and preferable alternative to the standard 'C' levers. | 29th May 1919 | West Wittering \ C \ May1919 Scan66 | |
| The 'singing' noise from a Lucas dynamo, expressing pleasure that the issue is being handled. | 4th Sep 1919 | West Wittering \ C \ September1919 Scan0 | |
| Revision of the 20 HP crankcase design due to complications with foundry work. | 9th Sep 1919 | West Wittering \ C \ September1919 Scan1 | |
| List of seven modification points from Mr. Royce regarding scheme N.SCHEME-107 for the 20 HP Propeller Shaft and Torque Tube. | 1st Sep 1919 | West Wittering \ C \ September1919 Scan2 | |
| Lubrication methods for the propeller shaft and universal joints, including diagrams. | 1st Sep 1919 | West Wittering \ C \ September1919 Scan3 | |
| Oil retention in the torque tube, proposing design changes including a die-cast aluminium partition. | 1st Sep 1919 | West Wittering \ C \ September1919 Scan4 | |
| Semi-flexible attachment of the scuttle to the dashboard. | 5th Sep 1919 | West Wittering \ C \ September1919 Scan5 | |
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