| Description | Date | Identifier | |
| Alterations to the steering lever on the 'India' model. | 12th May 1925 | Box 106 \ 3 scan0008 | |
| Secret memorandum outlining steering and braking improvements for the 'India' chassis. | 29th May 1925 | Box 106 \ 3 scan0009 | |
| Steering and the use of stiffer front springs for the India Chassis. | 3rd Jun 1925 | Box 106 \ 3 scan0010 | |
| From Hs. to CJ. defining 'unstable' steering and the role of springs in the connecting tube. | 29th Jun 1925 | Box 106 \ 3 scan0011 | |
| Proposed test rig to measure the coefficient of friction in steering systems. | 7th Mar 1925 | Box 106 \ 3 scan0012 | |
| Requesting further data on steering efficiency, including reversibility figures for the Goshawk type and other modern steering nuts. | 24th Jul 1925 | Box 106 \ 3 scan0013 | |
| Low-speed steering wobble in 20 HP cars fitted with 4-wheel brakes. | 1st Aug 1925 | Box 106 \ 3 scan0014 | |
| Specifications for friction devices on 20 HP pivots, for models with and without front wheel brakes. | 1st Aug 1925 | Box 106 \ 3 scan0015 | |
| Letter from G.W. Hancock regarding steering issues and potential improvements on chassis 9-G-111. | 11th Aug 1925 | Box 106 \ 3 scan0016 | |
| Outlining proposed tests for a modified steering system on the 20 HP model to address wobbles and road shock. | 25th Aug 1925 | Box 106 \ 3 scan0017 | |
| From Mr. Royce regarding a modification to the steering boxes on the 40/50 HP and 20 HP models. | 9th Sep 1925 | Box 106 \ 3 scan0018 | |
| Proposing a standard steering worm pitch for the existing steering box on 40 HP and 20 HP cars. | 1st Sep 1925 | Box 106 \ 3 scan0019 | |
| Steering improvements for the New Phantom & India models to address slow speed wobbles and road shocks. | 10th Sep 1925 | Box 106 \ 3 scan0020 | |
| Recommendations and ongoing work on suspension and steering to reduce road shocks and high-speed wobbles. | 12th Jun 1925 | Box 106 \ 3 scan0021 | |
| Recurring steering tubular support failure on the 20 HP car, with suggestions for improvement. | 12th Jun 1925 | Box 106 \ 3 scan0022 | |
| Modifications to the 20 HP steering system to address low speed wobbles by changing bearings and springs. | 1st Jan 1925 | Box 106 \ 3 scan0023 | |
| Letter to coachbuilders Barker & Co. confirming modifications to a 20 HP chassis. | 25th Sep 1925 | Box 106 \ 3 scan0024 | |
| Steering complaint on a 20 HP car, comparing axle types and potential solutions. | 26th Sep 1925 | Box 106 \ 3 scan0025 | |
| Complaint regarding a 20 HP chassis with incorrect steering and pedals sent to coachbuilder Barkers. | 1st Sep 1925 | Box 106 \ 3 scan0026 | |
| Modifications to the India front axle pivot arrangement and associated components. | 2nd Oct 1925 | Box 106 \ 3 scan0027 | |
| Manufacturing difficulties and a proposed new casting method for whitemetal lined steering nuts. | 2nd Oct 1925 | Box 106 \ 3 scan0028 | |
| Outlining the reasons for implementing a stepped dashboard on Phantom & Goshawk models. | 13th Oct 1925 | Box 106 \ 3 scan0029 | |
| The design and positioning of a Goshawk damped pendulum steering lever. | 13th Oct 1925 | Box 106 \ 3 scan0030 | |
| Lubrication issues with 'India' pivot pin bushes, suggesting a return to a previous design. | 15th Oct 1925 | Box 106 \ 3 scan0031 | |
| Blueprint detailing the addition of friction washers to a GIII axle pivot pin. | 16th Oct 1925 | Box 106 \ 3 scan0032 | |
| New steering layout with an outside pendulum lever for the Indian market and the New Phantom. | 28th Oct 1925 | Box 106 \ 3 scan0033 | |
| Improvements related to steering, tyre pressures, and suspension components. | 18th Nov 1925 | Box 106 \ 3 scan0034 | |
| Modifications to the 'D' steering and seat height to improve the driver's view over the radiator. | 23th Nov 1925 | Box 106 \ 3 scan0035 | |
| 20 HP chassis test, noting steering improvements and required modifications. | 2nd Feb 1926 | Box 106 \ 3 scan0036 | |
| From DA to Hs regarding a proposed visit to Derby, which is dependent on the return of 'E.' and mentions the 'India steering situation'. | 9th Feb 1926 | Box 106 \ 3 scan0037 | |
| Proposals to stiffen the 20 HP steering column and options for a new dashboard design. | 10th Feb 1926 | Box 106 \ 3 scan0038 | |
| Confirmation of a wire regarding a scheme to stiffen the Twenty steering column. | 10th Feb 1926 | Box 106 \ 3 scan0039 | |
| Confirmation of a wire requesting a copy of a later telegram regarding the Twenty HP steering. | 10th Feb 1926 | Box 106 \ 3 scan0040 | |
| Telegram regarding a scheme to stiffen the 20 HP steering column. | 10th Feb 1926 | Box 106 \ 3 scan0041 | |
| Stiffness of a new 20 HP steering column and suggesting its standardization. | 8th Feb 1926 | Box 106 \ 3 scan0042 | |
| The drawing N.sch.2147 for a 20 HP cast dash for 'B' type steering. | 19th Feb 1926 | Box 106 \ 3 scan0043 | |
| Design and implementation of a new cast dashboard for the 20 HP 'D' type steering model. | 19th Feb 1926 | Box 106 \ 3 scan0044 | |
| Reduction of steering lock on car 10.G.III due to fouling issues with the tyre and suspension bracket. | 23th Feb 1926 | Box 106 \ 3 scan0045 | |
| Reduction of wheel lock angles for a 20-HP chassis with a side steering tube. | 28th Jan 1926 | Box 106 \ 3 scan0046 | |
| Customer complaints of low-speed wobbles on 20 HP cars fitted with 4-wheel brakes. | 19th Mar 1926 | Box 106 \ 3 scan0047 | |
| Customer complaints of low speed wobbles on 20 HP cars, proposing a scheme to apply friction washers. | 20th Mar 1926 | Box 106 \ 3 scan0048 | |
| Steering lock discrepancy on a 20 HP chassis. | 20th Mar 1926 | Box 106 \ 3 scan0049 | |
| Solutions for a low-speed wobble on the 20 HP model, including a potential plate clutch device. | 23th Mar 1926 | Box 106 \ 3 scan0050 | |
| Re-investigation of a reduced steering lock. | 23th Mar 1926 | Box 106 \ 3 scan0051 | |
| Potential reduction of the steering lock. | 26th Mar 1926 | Box 106 \ 3 scan0052 | |
| Steering alterations and the use of friction devices for 20 HP and 40/50 HP models to address low-speed wobble issues. | 26th Mar 1926 | Box 106 \ 3 scan0053 | |
| Suggested bracket for stiffening the 40/50 HP steering support. | 27th Mar 1926 | Box 106 \ 3 scan0054 | |
| Low-speed steering wobble issues and proposed solutions for the 20 HP model. | 29th Mar 1926 | Box 106 \ 3 scan0055 | |
| Feedback on a 20 HP, 10,000 miles car regarding alterations for the steering column, a clip, and the throttle spring. | 31th Mar 1926 | Box 106 \ 3 scan0056 | |
| Steering column fitting for the 10,000 miles India Car. | 2nd Apr 1926 | Box 106 \ 3 scan0057 | |
| Clarifying the cause of a reduced steering lock on the 20 HP car, confirming the right-hand lock reduction from 40 to 33 degrees. | 7th Apr 1926 | Box 106 \ 3 scan0058 | |
| Query regarding the change in turning circle diameter for the 20 HP steering lock. | 12th Apr 1926 | Box 106 \ 3 scan0059 | |
| The turning circles and steering lock for a 20 HP vehicle fitted with front wheel brakes and a new steering system. | 15th Apr 1926 | Box 106 \ 3 scan0060 | |
| 'bump' test failure of the 20 HP steering bottom support bracket. | 22th Apr 1926 | Box 106 \ 3 scan0061 | |
| Report page detailing the parameters of a bump test and the intention to test mild steel brackets. | 22th Apr 1926 | Box 106 \ 3 scan0062 | |
| From GWH to Hs. regarding investigations into steering, rear axle, spring, and engine issues on a Phantom vehicle in Paris. | 22th Apr 1926 | Box 106 \ 3 scan0063 | |
| Modifications to a battery bracket and suspension, and outstanding steering parts. | 22th Apr 1926 | Box 106 \ 3 scan0064 | |
| Request for information about the next car's arrival to arrange luggage transportation. | 3rd May 1926 | Box 106 \ 3 scan0065 | |
| Standardization Sheet for the addition of friction plates to 20 HP steering pivots and seeking approval for the modification. | 3rd May 1926 | Box 106 \ 3 scan0066 | |
| 10,000-mile test on a 20 HP car in France, which revealed a cracked steering column flange. | 7th May 1926 | Box 106 \ 3 scan0067 | |
| Standardisation of a friction device for pivots to prevent low-speed steering wobble. | 30th Apr 1926 | Box 106 \ 3 scan0068 | |
| Tubular stiffening stay for the 20HP steering column to enable the use of an isolated scuttle. | 20th May 1926 | Box 106 \ 3 scan0069 | |
| Design and standardisation of the 20 HP steering system. | 21th May 1926 | Box 106 \ 3 scan0070 | |
| Design and application of a tubular stiffening stay for the 20 HP Chassis steering column. | 26th May 1926 | Box 106 \ 3 scan0071 | |
| Potential improvements to bonnet shutters, engine, servo, and steering systems. | 26th May 1926 | Box 106 \ 3 scan0072 | |
| Modifications to the 20HP steering column stay in response to a telegram about rain gutter difficulties. | 15th Mar 1926 | Box 106 \ 3 scan0073 | |
| Production of more friction devices to resolve steering wobble complaints on the 20HP chassis. | 1st Jun 1926 | Box 106 \ 3 scan0074 | |
| Standardisation report for modified steering designed to reduce shocks on the steering wheel. | 18th May 1926 | Box 106 \ 3 scan0075 | |
| Expressing concern about the increased turning circle on a modified 20 HP chassis steering system. | 15th Jun 1926 | Box 106 \ 3 scan0076 | |
| A Standardisation Sheet, querying a proposed modification that increases the vehicle's turning circle. | 16th Jun 1926 | Box 106 \ 3 scan0077 | |
| Delayed standardisation sheet for 20 HP steering and an explanation of the reduced steering lock. | 21th Jun 1926 | Box 106 \ 3 scan0078 | |
| Modifications to the India Cast Dash to improve foot clearance for the 40/50 model. | 22th Jun 1926 | Box 106 \ 3 scan0079 | |
| Modifications and support for the India steering column. | 23th Jun 1926 | Box 106 \ 3 scan0080 | |
| Modifications and schemes for India steering column supports. | 26th Jun 1926 | Box 106 \ 3 scan0081 | |
| The standardization and production of a new steering column for the 20 HP model, requesting an order for 50 units. | 2nd Jul 1926 | Box 106 \ 3 scan0082 | |
| Rigidity of the 20 HP steering column support and arguing against proposed modifications. | 5th Jul 1926 | Box 106 \ 3 scan0083 | |
| Potential replacement of an old type steering column stay with a new one for the 20 HP model. | 5th Jul 1926 | Box 106 \ 3 scan0084 | |
| Fitting of stays to the 20 HP steering column. | 2nd Jul 1926 | Box 106 \ 3 scan0085 | |
| Various fitments and stiffness issues of the 20HP steering column support. | 7th Jul 1926 | Box 106 \ 3 scan0086 | |
| Recommendation to use lead bronze and stainless steel to prevent parts from rusting or seizing while at coachbuilders. | 7th Jul 1926 | Box 106 \ 3 scan0087 | |
| The introduction of modified pedals and a stiffer steering column for the 20 HP Series K chassis. | 12th Jul 1926 | Box 106 \ 3 scan0088 | |
| Requesting the production of a plate for scuttle reinforcement on specific cars, including experimental models 7-EX and 10-EX. | 12th Jul 1926 | Box 106 \ 3 scan0089 | |
| The steering column support for the 20 HP model. | 15th Jul 1926 | Box 106 \ 3 scan0090 | |
| Introduction of a self-supporting steering column for the 20 HP model. | 9th Jul 1926 | Box 106 \ 3 scan0091 | |
| Query regarding testing new features, such as steering lock alteration and hydraulic shock absorbers, on a 20 HP car. | 30th Jul 1926 | Box 106 \ 3 scan0092 | |
| The availability of a 20 HP car with the latest steering, axle, and hydraulic dampers. | 30th Jul 1926 | Box 106 \ 3 scan0093 | |
| Arranging to view a 20 HP car to inspect its steering lock. | 10th Aug 1926 | Box 106 \ 3 scan0094 | |
| Modified steering system for 20 HP cars and arranging a test drive for review. | 12th Aug 1926 | Box 106 \ 3 scan0095 | |
| Comparative test report on different steering types for the Goshawk III. | 19th Aug 1926 | Box 106 \ 3 scan0096 | |
| Steering improvements achieved by fitting a stronger side steering tube and equal buffer springs to reduce wobble. | 19th Aug 1926 | Box 106 \ 3 scan0097 | |
| Comparison of original and latest type side steering tube buffer springs, including load ratings and test results. | 1st Aug 1926 | Box 106 \ 3 scan0098 | |
| Correcting the worm lead specification for the standardisation of the 20 HP steering system. | 1st Aug 1926 | Box 106 \ 3 scan0099 | |
| Investigations and conclusions on improving car steering performance. | 27th Aug 1926 | Box 106 \ 3 scan0100 | |
| Introduction and standardization of new steering columns for the 20 HP chassis. | 27th Aug 1926 | Box 106 \ 3 scan0101 | |
| Steering and low-pressure tyre improvements and related complaints for Phantom and Goshawk models. | 9th Mar 1926 | Box 106 \ 3 scan0102 | |
| Design and trial of a triangular stay for the 20 HP steering column. | 3rd Sep 1926 | Box 106 \ 3 scan0103 | |
| Proposed reduction of steering ratios for the Phantom and 20 HP models, specifically for the India market. | 4th Sep 1926 | Box 106 \ 3 scan0104 | |
| Standardisation document for modified steering on existing 20 HP cars. | 20th Aug 1926 | Box 106 \ 3 scan0105 | |
| Proposal to improve the 20 HP steering column on 'J' Series chassis. | 22th Sep 1926 | Box 106 \ 3 scan0106 | |
| Modification to the 20 HP steering columns for the J series chassis. | 22th Sep 1926 | Box 106 \ 3 scan0107 | |
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