| Description | Date | Identifier | |
| Alternatives for increasing body space on the Continental Touring Saloon Chassis. | 17th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan066 | |
| Suggestion to improve the lubrication of the front shock damper's upper joint by fitting a bent pipe from the air vent. | 10th Nov 1938 | West Wittering \ V \ October1930-February1931 Scan067 | |
| Clearance for the P. 2. Scuttle N. 2. Series isolation scheme. | 7th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan068 | |
| Gearbox problem regarding a proposed electrical, magnetically coupled clutch system. | 7th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan069 | |
| Outlining current engineering priorities for aero engines, the P.V. engine, and the 25HP model, alongside a decision against purchasing a Maybach. | 10th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan070 | |
| Requesting permission to send chassis 27-EX to coachbuilder Park Ward for body mounting, discussing logistics and costs. | 10th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan071 | |
| Proposal to increase the oil capacity of the 25HP crankchamber and redesign the oil gauge. | 10th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan072 | |
| Sending a chassis to Park Ward, fitting a dual carburetter, and designing a petrol tank. | 13th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan073 | |
| Revisions to the Epicyclic 3rd speed gearbox, including sending new scheme drawings and noting component changes. | 11th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan074 | |
| From 'R' requesting to see the 25HP model before it is sent to France. | 11th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan075 | |
| Shortening the oil pump for the epicyclic 3rd speed gearbox. | 12th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan076 | |
| Destruction of batteries on the Continental Touring Saloon Chassis, questioning if the cantilever suspension is the cause. | 12th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan077 | |
| Outlining the revised assembly procedure for an epicyclic 3rd speed gearbox. | 11th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan078 | |
| Letter to Park Ward & Co. Ltd. concerning an experimental chassis with special features for Sir Henry Royce. | 14th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan079 | |
| Inquiry about experiments with Maybach type clutches and helical 3rd speed, with a handwritten response. | 14th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan080 | |
| New design for a sheet metal battery box for the 25HP chassis, including battery, box, and wiring. | 13th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan081 | |
| A special chassis being sent to Park Ward, detailing required modifications, feature secrecy, and a new tank design. | 14th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan082 | |
| Proposing 9' rear and 4' front spring deflection as a compromise for American requirements, noting concerns about excessive rolling. | 15th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan083 | |
| Design and clearance of lower controls on a steering column, requesting a mock-up. | 15th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan084 | |
| Salerni coupling on the 40/50 model, its defects, and potential for further gearbox experiments. | 15th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan085 | |
| Note on ensuring no load on the clutch rod when the coupling is engaged to prevent slippage. | 15th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan086 | |
| Confidential memo discussing the evolution and increased duty required of car shock dampers. | 15th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan087 | |
| The development and performance of shock dampers and related chassis components. | 15th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan088 | |
| Postscript discussing issues with shock dampers, including their positioning, connections, and an oiling problem. | 17th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan089 | |
| Modifications to the petrol tank, gauge fitting, filler, wheel carrier, and exhaust fishtail. | 17th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan090 | |
| Specifications and build plan for car 27-EX for the South of France. | 17th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan091 | |
| Scheme 3172 for rear shock dampers with a 10-inch lever. | 17th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan092 | |
| Proposal and testing of slings under the rear axle. | 17th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan093 | |
| Car springing, discussing spring design, flexibility, and the effects of weight distribution. | 19th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan094 | |
| Battery support failures, proposing tests to investigate vibration and improve designs for 20HP and 25HP models. | 20th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan095 | |
| Request for comments from Derby on cost-effective manufacturing for a moulded battery and sheet metal box. | 20th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan096 | |
| Proposed modifications to the scuttle isolation print, focusing on rubber components and their installation. | 20th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan097 | |
| Battery support designs, comparing crossmember and cantilever types, and requesting vibration tests for 20HP and 25HP models. | 20th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan098 | |
| Request for comments from Derby on cost-saving measures for a moulded battery and sheet metal box. | 22th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan099 | |
| Cover memo for an attached document concerning the 25HP oil pump, sump, and filter. | 22th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan100 | |
| Battery placement and subframe design for a 25 HP model. | 24th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan101 | |
| Design and performance improvements for upcoming car models codenamed 'China' and 'Japan', covering suspension, power unit, axle, and clutch alterations. | 25th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan102 | |
| Evolution of induction and heating systems, leading to the design of thermostatically controlled shutters. | 25th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan103 | |
| Car body vibrations, known as 'booming', comparing different body construction materials and engine performance factors. | 26th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan104 | |
| Car springing, specifically deflection, flexibility, and a strategy for supplying spare spring leaves to the American market. | 26th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan105 | |
| Limitations, design, and compromises of thermostatically controlled shutters for car engines. | 26th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan106 | |
| Note on the process of hammering and filing countersunk rivets in sheet aluminium. | 26th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan107 | |
| Brake drum flexibility issues and proposing design alternatives for increased stiffness. | 26th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan108 | |
| Brake liner wear and proposed modifications to the brake shoe design. | 27th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan109 | |
| Selection of a two-note electric horn, comparing Bosch and Klaxon models. | 27th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan110 | |
| Car springing and the effects of increased deflection on riding qualities. | 27th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan111 | |
| Design alternatives for fitting a front apron frame cover. | 27th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan112 | |
| The redesign of brake drums, including material changes and a new patented braking system to improve performance. | 28th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan113 | |
| Confirmation of a telephone message to Mr. Bailey regarding brake modifications and ordering new ring forgings. | 28th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan114 | |
| Proposed modification to a revised steering column and seat height on model 22-EX. | 27th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan115 | |
| List of proposed modifications for an old car to be used in the South of France. | 28th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan116 | |
| Improving riveting assembly methods by switching from hand work to machine-done force fits. | 29th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan117 | |
| Design modifications to the 25HP clutch flywheel and cover. | 29th Nov 1930 | West Wittering \ V \ October1930-February1931 Scan118 | |
| Drawings for new ribbed brake drums and the proposed use of manganese steel. | 1st Dec 1930 | West Wittering \ V \ October1930-February1931 Scan119 | |
| The despatch of shock absorber diagrams. | 1st Dec 1930 | West Wittering \ V \ October1930-February1931 Scan120 | |
| Letter explaining the design choices and evolution of the springing system for the Phantom II. | 1st Dec 1930 | West Wittering \ V \ October1930-February1931 Scan121 | |
| Improving vehicle ride quality through weight distribution, springing, and shock damper modifications. | 1st Dec 1930 | West Wittering \ V \ October1930-February1931 Scan122 | |
| The design and performance of hydraulic shock dampers, comparing them to Lovejoy models. | 1st Dec 1930 | West Wittering \ V \ October1930-February1931 Scan123 | |
| Revised bracket for an exhaust swan neck and the results of related tests. | 1st Dec 1930 | West Wittering \ V \ October1930-February1931 Scan124 | |
| Design, advantages, and disadvantages of a proposed 'interlaced' crankshaft. | 3rd Dec 1930 | West Wittering \ V \ October1930-February1931 Scan125 | |
| Design issues and potential improvements for hydraulic dampers, comparing a new design to Lovejoy dampers. | 1st Dec 1930 | West Wittering \ V \ October1930-February1931 Scan126 | |
| Schemes for fitting combined reverse, stop, and tail lamps to various car rear-end types. | 3rd Dec 1930 | West Wittering \ V \ October1930-February1931 Scan127 | |
| Design of a new dual-note electric horn, combining Bosch and Cobra horn notes. | 1st Dec 1930 | West Wittering \ V \ October1930-February1931 Scan128 | |
| Proposal for new brake shoes with pivoted ends to prevent squeaks. | 4th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan129 | |
| Revised design of a centre pivoted brake shoe. | 14th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan130 | |
| Suggesting to experimentally try nickel chrome cast iron for new ribbed brake drums on the Phantom model. | 5th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan131 | |
| Print for a Delco-Lovejoy shock damper and the need for timely information from Derby. | 5th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan132 | |
| The causes and proposed lubrication-based solutions for camshaft squawks. | 6th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan133 | |
| Inquiry regarding the material composition of a Lovejoy-Delco shock damper body. | 9th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan134 | |
| Proposed changes to the P. 2. H.T. magneto wiring due to an overheating issue. | 11th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan135 | |
| Thermostatically controlled shutters, carburation, and silencers for 25HP and 45HP cars. | 15th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan136 | |
| Performance and proposed modifications to brake drums and shoes. | 11th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan137 | |
| Engine design decisions for the 25HP chassis, including bore, stroke, and crankcase specifications. | 11th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan138 | |
| List of design modifications for a vehicle's engine and chassis components. | 11th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan139 | |
| Finalisation of scuttle isolation drawings and the use of rubber buffers. | 11th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan140 | |
| Requesting a copy of the original list of complaints for a monthly report. | 2nd Dec 1930 | West Wittering \ V \ October1930-February1931 Scan141 | |
| Proposal for luggage grids and wheel carriers on the 25HP model. | 12th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan142 | |
| Short memo requesting the collection of a 25HP car for an update. | 13th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan143 | |
| Performance improvements and characteristics for car dynamos. | 13th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan144 | |
| Design of a cantilever-style battery support. | 15th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan145 | |
| Design sketch for a battery rear support component, sheet 2. | 15th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan146 | |
| Preference and design of a double vertical piston type hydraulic damper. | 15th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan147 | |
| Design sketch with annotations for a shock damper mechanism. | 17th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan148 | |
| Proposed modification to the radiator on chassis 18-G-4. | 17th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan149 | |
| Feedback letter from Sir Henry Royce to coachbuilder Park Ward & Co. detailing eight design flaws on a car. | 18th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan150 | |
| Page 2 of a letter listing interior finishing faults and discussing remedial action, with an internal memo attached. | 18th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan151 | |
| Deleting the carbon from a push button switch and a suggestion to reduce operating trouble by halving spring pressure. | 18th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan152 | |
| Dynamo battery system, electrical load calculations, and two-rate charging schemes. | 19th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan153 | |
| Switchbox modifications and the conclusion that the dynamo cutout is too small, necessitating experimental machines with greater capacity. | 19th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan154 | |
| Dynamo battery system and two-rate charge switching, including electrical load calculations. | 19th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan155 | |
| Page discussing alterations to a switchbox and the capacity of the dynamo cutout. | 24th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan156 | |
| Crankshaft and crankchamber design, focusing on balancing, stiffness, and vibration reduction for 25HP and 45HP engines. | 24th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan157 | |
| Improvements and testing for the 25HP and 45HP models, including crankshafts, suspension, and clutches. | 20th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan158 | |
| Revision of the Type 4 luggage carrier and rear apron design due to aesthetic criticism. | 20th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan159 | |
| Design and development of 25HP & 45HP epicyclic gearboxes. | 20th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan160 | |
| Concerns and suggestions regarding a two-rate dynamo charging scheme for a car battery. | 23th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan161 | |
| Proposal to change resistances and an alternative switching scheme. | 23th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan162 | |
| Suggesting the use of deeper and standardized rubber buffers to improve ride quality after a harsh axle bump. | 23th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan163 | |
| Design and balancing of a 25HP & 45HP crankshaft. | 23th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan164 | |
| Crankshaft balancing, counterweights, and flywheel modifications for smoother engine performance. | 23th Dec 1930 | West Wittering \ V \ October1930-February1931 Scan165 | |
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