| Description | Date | Identifier | |
| Proposal for modifying the Phantom Weir type slotted induction pipe to improve accessibility and ease of maintenance. | 12th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan083 | |
| Ideas for managing engine overoiling by varying oil pressure with speed. | 14th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan084 | |
| Query regarding the possibility of using smaller road wheels on a car. | 14th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan085 | |
| Requesting a report on Austenitic valve steel. | 14th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan086 | |
| Modifications to the clutch thrust to make it oil retaining. | 16th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan087 | |
| Rebuilding chassis 15-EX with an ordinary long frame, new components, and specifics on the steering column type. | 16th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan088 | |
| Arrangement of the Enots-Bijur lubrication on the back axle. | 16th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan089 | |
| Causes of 'joggling' in Phantom steering, attributing it to gyroscopic reaction and road shocks. | 17th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan090 | |
| New design of a damped pendulum lever with leaf springs for the 'SS' Steering system. | 17th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan091 | |
| New side steering tube designed for use with a damped pendulum lever on 'SS' steering systems. | 17th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan092 | |
| Urgency of chassis production, proposed modifications, and testing plans for a new model. | 17th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan093 | |
| Secret memo from 'R.' detailing developments for the 'SS' Phantom, including a new spring damped pendulum lever and other chassis and engine modifications. | 17th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan094 | |
| Modifications to the central oiling system for the 12-EX experimental car. | 17th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan095 | |
| Centralised chassis lubrication, detailing alterations to the front spring's rear anchorage. | 17th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan096 | |
| Modification to the centralised chassis lubrication system for the universal joint and torque sphere. | 17th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan097 | |
| Modifications to the 'SS' chassis rear end. | 17th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan098 | |
| Modifications required for the centralised chassis lubrication system. | 18th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan099 | |
| Installation of an Enots oiling nipple and the subsequent removal of the Bijur pump. | 19th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan100 | |
| Reminder to supply figures for tappet clearance variations on Phantom engines. | 19th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan101 | |
| Design LeC. 2560 for throttle governor control and modifications to the induction pipe. | 19th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan102 | |
| Proposed changes to the axle control damper spindle to improve oil retention. | 19th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan103 | |
| Approval and implementation of an improved appearance for the 20HP model. | 19th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan104 | |
| Scheme 2609 for the 'SS' side steering tube, noting its similarity to the cross steering tube. | 22th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan105 | |
| Scheme 2608 for adapting the front springs' rear anchorage for centralised lubrication. | 22th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan106 | |
| New scheme for the rear shackle and dumb iron for the India 3 model's rear springs. | 22th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan107 | |
| Modifications to the rear end components for 'India 3 & 4' vehicles. | 22th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan108 | |
| Secret memo regarding scheme 2610 for the 'SS' cross steering tube joint. | 23th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan109 | |
| The arrangement of centralised chassis lubrication for the brake differential and hand brake lever. | 23th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan110 | |
| The position of a 2-level device in the petrol tank and sump design for the 20HP model. | 23th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan111 | |
| Modifications for the 20HP improved bonnet, radiator, and dash. | 23th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan112 | |
| Suggesting the use of nickel and chromium in iron castings to improve strength for car cylinders and flywheels. | 23th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan113 | |
| Centralised chassis lubrication for the front brake differential shaft, pedals, and clutch operating shaft. | 26th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan114 | |
| Modification to the clutch thrust for improved oil retention. | 31th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan115 | |
| Centralised chassis lubrication for the Phantom pendulum lever, referencing scheme 2618. | 31th May 1928 | West Wittering \ S \ 2April1928-June1928 Scan116 | |
| Modification to the rear axle for the Enots/Bijur centralised chassis lubrication system. | 1st Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan117 | |
| Schemes for centralised chassis lubrication of the brake gear on the India 3 rear axle. | 5th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan118 | |
| Frame heights, axle modifications, and buffer clearance for the 'SS' model. | 5th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan119 | |
| Provision of an interim induction pipe to enable engine testing. | 6th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan120 | |
| Modifications to the 'SS' Front Axle, including a dropped centre portion and reduced pivot angle. | 19th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan121 | |
| Secret memorandum detailing proposed modifications to the 'SS' Front Axle. | 9th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan122 | |
| Attached drawing for a Top Water Pipe and Fan. | 9th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan123 | |
| Sending schedule 2628 showing the layout for the 'SS' side steering tube and front springs with a modified axle drop. | 13th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan124 | |
| Best way to test different valve steels on the test bed. | 11th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan125 | |
| Design issues and proposing modifications for the Phantom's rear wheel and luggage carrier. | 13th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan126 | |
| Proposal for 'E' type steering modifications for a G.2.B. Series Phantom. | 14th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan127 | |
| Providing additional information on the 'SS' Battery Cross Member. | 15th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan128 | |
| Support of the steering column with a cast dash. | 15th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan129 | |
| Redesign of a magnetic cutout for a green light charge scheme, addressing issues with road vibrations and coil materials. | 15th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan130 | |
| Solutions to a steering problem, detailing a spring-damped pendulum lever and hydraulic modifications. | 5th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan131 | |
| Solutions for gas-tightness around the 20HP gear quadrant and modifications to the gear and brake levers. | 16th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan132 | |
| Proposed improvements for a new car model and sourcing bodies for prototypes. | 18th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan133 | |
| Modifications to the 'SS' front axle control and shock damper, including shortening a lever and increasing an inner ball bearing. | 19th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan134 | |
| Compromised redesign for a higher and narrower headlamp position on the 20HP model. | 19th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan135 | |
| New aluminium turbulent head, detailing its performance gains and the urgency to progress with its production. | 20th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan136 | |
| Sending drawings for a new experimental carburetter for the Phantom engine. | 20th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan137 | |
| Confirming that two bolts are sufficient for the scuttle semi-isolation to support the steering column with the cast dash. | 21th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan138 | |
| Contingency plans for carburetter and induction pipe development for specific projects. | 21th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan139 | |
| Proposed spring-loaded adjustment for the front axle control ball joint. | 21th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan140 | |
| New induction pipe heating scheme, proposing a novel valve system to be patented. | 21th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan141 | |
| Investigations into a pressure issue in hydraulic shock dampers, possibly caused by trapped air. | 22th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan142 | |
| Objections and requesting tests concerning the 'SS' front axle, specifically the wheel placement and stub axles. | 22th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan143 | |
| Confirming the dispatch of drawing LeC. 2566 for the India 3-cylinder head and valve rockers. | 23th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan144 | |
| Confirming the dispatch of drawing LeC. 2565 for 'India 3. Tappet Rods'. | 23th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan145 | |
| Sourcing and modification of three car bodies, including one for India and a personal one for Mr Royce. | 23th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan146 | |
| Modifications for an expanding throat carburetter. | 23th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan147 | |
| Agreement to reduce the dashboard-to-steering wheel distance on the 'E' Steering for model 12-EX. | 23th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan148 | |
| Ordering and construction of three car bodies for the 'First India 3' project. | 26th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan149 | |
| Specifications for body brackets, step-irons, and side levers for the 'India 3' model. | 26th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan150 | |
| Alterations to the Phantom model's lubrication instructions to reduce oiling frequency. | 26th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan151 | |
| Front and rear wheel clearances for the 'India 3' project. | 26th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan152 | |
| Designing a dashboard-mounted pump for a centralised chassis lubrication system. | 28th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan153 | |
| Request from Mr. Royce for an additional test on hydraulic shock dampers. | 28th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan154 | |
| Modifications to a crankchamber for an India 3-cylinder block to accommodate larger valves. | 29th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan155 | |
| Revised, colour-coded Phantom wiring diagram for inclusion in the instruction book. | 29th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan156 | |
| Battery charge indicator switch and a request for a distribution board drawing. | 29th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan157 | |
| Outlining various schemes for rear-mounted spare wheels and luggage arrangements for the 'India 3' model. | 29th Jun 1928 | West Wittering \ S \ 2April1928-June1928 Scan158 | |
| Tests comparing four different induction pipe heating systems for the Phantom engine. | 14th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan001 | |
| Analysis comparing exhaust heated and water heated induction systems for engine performance, especially in cold conditions. | 14th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan002 | |
| Carburetter and induction system development, discussing 'hot spots' and exhaust heating. | 12th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan003 | |
| Graph comparing the temperature rise of a hot spot on an F-2-B Series Phantom engine with different heating methods. | 12th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan004 | |
| Comparing Maconite and Gloverite cables to the standard Glover cable, including a price comparison. | 1st Jun 1928 | West Wittering \ S \ June1928-August1928 Scan005 | |
| Test comparing the warming-up rates of an exhaust-heated hot spot versus a water-heated bend for a Phantom induction pipe. | 7th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan006 | |
| Results and continuation of experiments on hot spots in a water-heated system. | 6th Jun 1923 | West Wittering \ S \ June1928-August1928 Scan007 | |
| Further tests comparing exhaust and water-heated induction pipes for the Phantom engine. | 6th Jun 1923 | West Wittering \ S \ June1928-August1928 Scan008 | |
| Comparison of engine warm-up performance between a standard exhaust heating system and a water heating system. | 11th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan009 | |
| Diagram showing the test setup for the Phantom engine's 'Hot Spot' system. | 11th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan010 | |
| Blank page with a purple ink stamp from the print room. | 11th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan011 | |
| Graph comparing the temperature rise of a hot spot on an F.2.B. Series Phantom engine using exhaust versus water heat. | 9th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan012 | |
| Mostly blank page with a red ink stamp in the bottom right corner. | 12th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan013 | |
| On the testing of K.E.965 austenitic steel as a satisfactory alternative for the current silchrome valve steel. | 1st Jun 1928 | West Wittering \ S \ June1928-August1928 Scan014 | |
| Arguing for semi-isolation of the scuttle over a scuttle damper or complete isolation, based on experimental tests and customer feedback. | 15th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan015 | |
| Standardisation of a scuttle damper scheme, comparing semi-isolation with total isolation. | 16th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan016 | |
| The performance and behaviour of different magnetos on 40/50 HP experimental Phantom chassis. | 16th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan017 | |
| Comparison of noise levels in Lucas magnetos, noting that they become noisy during service. | 18th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan018 | |
| Correction to a report on magnetos fitted to 40/50 HP cars. | 18th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan019 | |
| Experiments to establish a calculation for the 'choc-a-bloc' (fully compressed) length of valve springs. | 8th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan020 | |
| Table of measurements comparing the nominal and measured choc-a-bloc length of various valve springs. | 31th Mar 1928 | West Wittering \ S \ June1928-August1928 Scan021 | |
| Stamped document page from the archive. | 18th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan022 | |
| On tests conducted on the 'SS' front axle to improve steering and reduce high-speed wobble. | 8th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan023 | |
| Experiments on king pin angles, pivots, and stub axle modifications. | 8th Jun 1928 | West Wittering \ S \ June1928-August1928 Scan024 | |
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