| Description | Date | Identifier | |
| Confirming that properly balanced wheels with a tyre pressure of 45 lbs should prevent steering wobbles. | 16th Oct 1925 | Box 29 \ 1 Scan139 | |
| Response to a customer regarding wheel wobble issues on a non-Phantom car. | 16th Oct 1925 | Box 29 \ 1 Scan140 | |
| The causes and cures for low and high-speed wheel wobble. | 12th Jun 1925 | Box 29 \ 1 Scan141 | |
| With recommendations to fix low speed wobble and shimmy in steering. | 12th Jun 1923 | Box 29 \ 1 Scan142 | |
| Letter to Dunlop Rubber Co. Ltd. returning a Michelin paper and discussing high-speed steering wobbles. | 16th Oct 1925 | Box 29 \ 1 Scan143 | |
| Letter from Dunlop Rubber Co. Ltd. regarding a Michelin paper on 'Shimmy' and inquiring about the status of tyre and wheel tests. | 19th Oct 1925 | Box 29 \ 1 Scan144 | |
| High-speed wobbles for car 98-NK under different tyre and suspension configurations. | 20th Oct 1925 | Box 29 \ 1 Scan145 | |
| Investigating high-speed steering wobbles by modifying spring leaf configurations. | 23th Oct 1925 | Box 29 \ 1 Scan146 | |
| High-speed wobbles caused by low pressure balloon tyres on New Phantom cars. | 26th Oct 1925 | Box 29 \ 1 Scan147 | |
| The effect of high and low pressure tyres on wheel wobble. | 1st Oct 1925 | Box 29 \ 1 Scan148 | |
| Letter to The Dunlop Rubber Co. discussing practical difficulties with a steering device suggestion, referencing Ackermann geometry. | 27th Oct 1925 | Box 29 \ 1 Scan149 | |
| Wheel wobble on Chassis No. 931. | 29th Oct 1925 | Box 29 \ 1 Scan150 | |
| The testing of Dunlop high-pressure tyres, discussing mileage, pressures, and effects on steering for the Phantom and 20 HP models. | 31th Oct 1925 | Box 29 \ 1 Scan151 | |
| Steering tests carried out on chassis 93-NK at various tyre pressures. | 1st Jul 1925 | Box 29 \ 1 Scan152 | |
| Letter from the American branch to the British branch regarding a hydraulic steering system. | 11th Nov 1925 | Box 29 \ 1 Scan153 | |
| The necessity of balancing Silver Ghost wheels to prevent steering wobble. | 12th Nov 1925 | Box 29 \ 1 Scan154 | |
| Cause of steering wobbles, attributing it to the imbalance of tyres and inner tubes. | 7th Sep 1911 | Box 29 \ 1 Scan155 | |
| Committee discussion regarding steering wobbles caused by out-of-balance tyres. | 15th Nov 1911 | Box 29 \ 1 Scan156 | |
| Minutes of the 93rd Steering Committee meeting discussing the balancing of tyres with Dunlop, Michelin, and Continental. | 4th Dec 1911 | Box 29 \ 1 Scan157 | |
| Customer's feedback on wheel balancing issues and a suggested solution. | 7th Jun 1912 | Box 29 \ 1 Scan158 | |
| Steering wobble on a 15-MC Cabriolet Demonstration Car. | 12th Nov 1925 | Box 29 \ 1 Scan159 | |
| Steering wobble issue in a 15-MC Cabriolet 'Phantom' during a demonstration. | 10th Nov 1925 | Box 29 \ 1 Scan160 | |
| New front axle design for the Phantom to reduce steering wobbles. | 16th Nov 1925 | Box 29 \ 1 Scan161 | |
| Correspondence regarding wheel wobble on an ancient 40/50 car, attaching an extract from a letter on the subject. | 13th Nov 1925 | Box 29 \ 1 Scan162 | |
| Letter discussing the need for a hydraulic damping device to control steering wheel wobble. | 13th Nov 1925 | Box 29 \ 1 Scan163 | |
| Letter from The Wilson Engineering Works discussing their device to control front wheel wobble. | 23th Mar 1928 | Box 29 \ 1 Scan164 | |
| Steering issues, tyre pressures, and proposed improvements to axle and damper systems. | 8th Nov 1925 | Box 29 \ 1 Scan165 | |
| Tests conducted to understand and mitigate high-speed steering wobbles. | 12th Jun 1925 | Box 29 \ 1 Scan166 | |
| Tests investigating steering wobble, wheel dishing, and king pin friction. | 25th Dec 1925 | Box 29 \ 1 Scan167 | |
| Wheel balancing, out-of-balance issues, and steering wobble. | 9th Dec 1925 | Box 29 \ 1 Scan168 | |
| High-speed steering wobbles and the design of a new axle to mitigate the issue. | 11th Dec 1925 | Box 29 \ 1 Scan169 | |
| Steering wobbles, experimental reports, and the effect of springing and 4-wheel brakes. | 25th Jan 1926 | Box 29 \ 1 Scan170 | |
| The impact of modified brakes and stiffer springs on the car's riding qualities and unsprung weight. | 26th Jan 1926 | Box 29 \ 1 Scan171 | |
| Suggesting a gearing change for an inertia damper to better counteract high-speed steering wobble. | 26th Jan 1926 | Box 29 \ 1 Scan172 | |
| The rear springing and tyre performance of the 7-EX car at Le Canadel, with recommendations for improvements. | 1st Feb 1926 | Box 29 \ 1 Scan173 | |
| Investigation into high-speed steering wobbles, detailing findings and seeking information on how the problem is handled in the USA. | 1st Feb 1926 | Box 29 \ 1 Scan174 | |
| Tests of new hydraulic shock absorbers to eliminate high-speed steering wobbles. | 9th Feb 1926 | Box 29 \ 1 Scan175 | |
| Tests conducted on tyres and dampers to eliminate wheel wobble. | 9th Feb 1926 | Box 29 \ 1 Scan176 | |
| The phenomenon of high-speed steering wobbles or 'shimmy' in cars. | 9th Feb 1926 | Box 29 \ 1 Scan177 | |
| Car 'shimmy' and 'wobble' issues, particularly in relation to new well base tyres. | 10th Feb 1926 | Box 29 \ 1 Scan178 | |
| Letter to Mr. E. W. Hives concerning experimental work and theories on front wheel wobble. | 10th Feb 1926 | Box 29 \ 1 Scan179 | |
| Letter discussing front wheel wobble, gyroscopic effects, and the impact of reducing toe-in. | 10th Feb 1926 | Box 29 \ 1 Scan180 | |
| Cause and potential solutions for steering wobble on Mr. Salamanca's car. | 12th Feb 1926 | Box 29 \ 1 Scan181 | |
| Typed note discussing the causes of 'wobble' in Phantom and Silver Ghost cars. | 2nd Feb 1926 | Box 29 \ 1 Scan182 | |
| Concerning steering wobble issues on a customer's car. | 2nd Feb 1926 | Box 29 \ 1 Scan183 | |
| Fractured links and worn link holes in hydraulic shock absorbers. | 17th Feb 1926 | Box 29 \ 1 Scan184 | |
| Steering wobble issues and recent steering improvements on the Phantom model. | 17th Feb 1926 | Box 29 \ 1 Scan185 | |
| High-speed steering wobbles, tyre pressures, and the potential of hydraulic dampers. | 17th Feb 1926 | Box 29 \ 1 Scan186 | |
| Letter discussing the causes of high-speed steering wobble and the improvements being made. | 19th Feb 1926 | Box 29 \ 1 Scan187 | |
| The benefits and design considerations of hydraulic shock dampers, including tyre pressure and a relief valve modification. | 19th Feb 1926 | Box 29 \ 1 Scan188 | |
| Comparative tests of a new non-skid tyre, which demonstrated increased high-speed steering wobbles. | 20th Feb 1926 | Box 29 \ 1 Scan189 | |
| Tests to determine the minimum loading for hydraulic shock dampers to eliminate high-speed steering wobbles. | 1st Feb 1928 | Box 29 \ 1 Scan190 | |
| Investigation into the causes and effects of front wheel wobble. | 26th Feb 1926 | Box 29 \ 1 Scan191 | |
| Observations and potential solutions for front wheel wobble on cars with front brakes. | 22th Feb 1926 | Box 29 \ 1 Scan192 | |
| Risk of high-speed steering wobbles associated with low-pressure tyres. | 22th Feb 1926 | Box 29 \ 1 Scan193 | |
| Letter from the Spanish representative regarding a steering wobble and a replacement part for trial. | 23th Feb 1926 | Box 29 \ 1 Scan194 | |
| Letter discussing the phenomenon of high-speed wobble, potential solutions, and American front brake practices. | 23th Feb 1926 | Box 29 \ 1 Scan195 | |
| High-speed wobble, comparing to American cars and proposing hydraulic steering gear solutions. | 23th Feb 1926 | Box 29 \ 1 Scan196 | |
| Technical memorandum discussing wheel swing, tire tread effects, and potential steering system improvements. | 23th Feb 1926 | Box 29 \ 1 Scan197 | |
| Wheel wobble, steering effects, and potential improvements using Lovejoy and criss-cross shock absorbers. | 23th Feb 1926 | Box 29 \ 1 Scan198 | |
| Hydraulic shock damper failure, potential design improvements, and terminology. | 25th Feb 1926 | Box 29 \ 1 Scan199 | |
| The effectiveness of hydraulic shock dampers and plans for testing and implementation. | 26th Feb 1926 | Box 29 \ 1 Scan200 | |
| Pressing for the adoption of hydraulic shock dampers, semi-balloon tyres, and a lighter front axle for Phantom & Coshank models. | 27th Feb 1926 | Box 29 \ 1 Scan201 | |
| Effects of hydraulic shock absorbers on vehicle springing and steering wobble. | 3rd Mar 1926 | Box 29 \ 1 Scan202 | |
| The effects of axle design, front wheel brakes, and tyres on steering wobble and road shocks. | 8th Mar 1926 | Box 29 \ 1 Scan203 | |
| Cover memo regarding high speed wobbles, attaching a report and blueprints. | 8th Mar 1926 | Box 29 \ 1 Scan204 | |
| Letter from America to Mr. F.H. Royce concerning high-speed wobbles, gyroscopic couple and tire design. | 28th Feb 1926 | Box 29 \ 1 Scan205 | |
| Page with a purple ink stamp from the Print Room, Derby. | 10th Mar 1936 | Box 29 \ 1 Scan206 | |
| Customer complaints of low speed wobbles on 20 HP cars fitted with 4-wheel brakes. | 19th Mar 1926 | Box 29 \ 1 Scan207 | |
| Resolving low speed wobbles on a 20 HP car, including a proposed fix using friction washers. | 20th Mar 1926 | Box 29 \ 1 Scan208 | |
| Low-speed steering wobble issue on the 20 HP chassis. | 20th Mar 1926 | Box 29 \ 1 Scan209 | |
| Investigation into low-speed steering wobbles on the 20-HP model. | 22th Mar 1926 | Box 29 \ 1 Scan210 | |
| Solutions for low-speed wobbles on the 20 HP model. | 23th Mar 1926 | Box 29 \ 1 Scan211 | |
| Experimental tyre tests concerning high-speed wobbles, comfort, noise, and skidding. | 25th Mar 1926 | Box 29 \ 1 Scan212 | |
| Low-pressure tyre performance on the Phantom model, suspension issues, and a separate note on oil alternatives. | 25th Mar 1926 | Box 29 \ 1 Scan213 | |
| Comparison of Prices and Wakefields oils, discussing composition, availability, and suitability for standardisation. | 25th Mar 1926 | Box 29 \ 1 Scan214 | |
| Solutions for steering wobble and vibration issues on 20-HP and 40/50 HP cars. | 25th Mar 1926 | Box 29 \ 1 Scan215 | |
| Reports of low-speed steering wobbles in 20-HP cars and issuing instructions for rectification. | 25th Mar 1926 | Box 29 \ 1 Scan216 | |
| Fix for low-speed steering wobbles on the 20 HP model. | 25th Mar 1926 | Box 29 \ 1 Scan217 | |
| Steering adjustments and solutions for low speed wobbles on 20 HP and 40/50 HP models. | 26th Mar 1926 | Box 29 \ 1 Scan218 | |
| Customer complaints of low-speed steering wobble on 20 HP models and proposed solutions. | 29th Mar 1926 | Box 29 \ 1 Scan219 | |
| Authorising the production of 12 new friction devices to fix low-speed steering wobble on customer cars. | 1st Apr 1926 | Box 29 \ 1 Scan220 | |
| High-speed steering wobbles experienced on car 7-EX with medium pressure tyres. | 2nd Apr 1926 | Box 29 \ 1 Scan221 | |
| Concerning a low-speed steering wobble on a Phantom model car. | 27th Apr 1926 | Box 29 \ 1 Scan222 | |
| Steering wobble and vibration issues on car 7-EX and potential solutions. | 18th May 1926 | Box 29 \ 1 Scan223 | |
| Implementation of spring-loaded ball joints for India steering connections to prevent wobbles. | 28th May 1926 | Box 29 \ 1 Scan224 | |
| Improvements and tests on the Phantom model's tyres and steering system. | 29th May 1926 | Box 29 \ 1 Scan225 | |
| Necessity and drawbacks of extra friction on front axle pivots to prevent steering wobble. | 31th May 1926 | Box 29 \ 1 Scan226 | |
| Further improvements and design modifications for hydraulic shock dampers. | 10th Jun 1926 | Box 29 \ 1 Scan227 | |
| Problem of high-speed wobbles and the benefits of hydraulic shock dampers over friction types. | 15th Jun 1926 | Box 29 \ 1 Scan228 | |
| Report discussing the benefits of hydraulic dampers on 20 HP cars for improving ride comfort and spring longevity. | 16th Mar 1926 | Box 29 \ 1 Scan229 | |
| The communication and process for addressing reports of 'front wheel wobbles' on new cars. | 24th Jun 1926 | Box 29 \ 1 Scan230 | |
| Solutions for high-speed steering wobbles on chassis 79-LC during trials. | 5th Jul 1926 | Box 29 \ 1 Scan231 | |
| Forwarding a request from The Cambridge Instrument Co. | 1st Jul 1926 | Box 29 \ 1 Scan232 | |
| Letter from Cambridge Instrument Co. Ltd. requesting to use records taken with a Laboratory Chronograph for a promotional leaflet. | 19th Jul 1926 | Box 29 \ 1 Scan233 | |
| Method for measuring high-speed steering wobbles using a chronograph and electrical contacts. | 22th Jul 1926 | Box 29 \ 1 Scan234 | |
| The adaptation of a 3-pen chronograph for the measurement of braking performance. | 22th Jul 1926 | Box 29 \ 1 Scan235 | |
| Continued page discussing the calculation of car speed and retardation from braking test records. | 22th Jul 1926 | Box 29 \ 1 Scan236 | |
| Comparison of road shock and ride comfort between standard high-pressure tyres and 6.75' Dunlop balloon tyres. | 8th Aug 1926 | Box 29 \ 1 Scan237 | |
| High-speed steering wobbles, comparing 6' and 6.75' tyres and the effect of wheel inertia. | 23th Aug 1926 | Box 29 \ 1 Scan238 | |
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