| Description | Date | Identifier | |
| Investigation into a failed shock damper casing and a comparison of cylinder wall thicknesses with production samples. | 10th Nov 1933 | Box 16 \ 5 Scan154 | |
| Introduction and standardisation of controllable shock dampers for the R.2. series chassis. | 14th Nov 1933 | Box 16 \ 5 Scan155 | |
| Test report for controlled dampers on chassis 22-EX. | 14th Nov 1933 | Box 16 \ 5 Scan156 | |
| Vehicle condition report detailing the performance and faults of various mechanical components. | 16th Nov 1933 | Box 16 \ 5 Scan157 | |
| Test report for controlled dampers on a 40/50 type chassis. | 16th Nov 1933 | Box 16 \ 5 Scan158 | |
| Vehicle condition report detailing issues with various components. | 17th Nov 1933 | Box 16 \ 5 Scan159 | |
| Change to stronger spring type connecting tubes for the Phantom II rear shock damper. | 17th Nov 1933 | Box 16 \ 5 Scan160 | |
| The testing and production approval of stronger springs for rear damper connecting tubes. | 17th Nov 1933 | Box 16 \ 5 Scan161 | |
| Instructing the Works to introduce controllable shock dampers on the first R-2 series chassis. | 17th Nov 1933 | Box 16 \ 5 Scan162 | |
| Plan to introduce controllable RR shock dampers on the R.2 series chassis. | 23th Nov 1933 | Box 16 \ 5 Scan163 | |
| Tests and settings instructions for governor control shock dampers from Mr. Brock's department. | 24th Nov 1933 | Box 16 \ 5 Scan164 | |
| Springing, damping, and swaying characteristics of the 22-Ex car. | 27th Nov 1933 | Box 16 \ 5 Scan165 | |
| Technical memo detailing the testing procedure for governor control shock dampers on a 40/50 HP model. | 29th Nov 1933 | Box 16 \ 5 Scan166 | |
| Test procedures and specifications for a damper and governor control unit, including a pressure to road speed table. | 29th Nov 1933 | Box 16 \ 5 Scan167 | |
| Instructions for erecting and testing a shock damper bellows control unit. | 29th Nov 1933 | Box 16 \ 5 Scan168 | |
| Blueprint for a solid HP valve for testing HP and L.P. chambers. | 29th Nov 1933 | Box 16 \ 5 Scan169 | |
| Confirming the 26-EX car has completed 10,000 miles using the production scheme for governor-controlled shock dampers. | 29th Nov 1933 | Box 16 \ 5 Scan170 | |
| Standardisation of parts for controllable shock dampers. | 20th Nov 1933 | Box 16 \ 5 Scan171 | |
| Modification to the Phantom II damper governor controls to avoid the brake pedal fouling the wiring system. | 20th Dec 1933 | Box 16 \ 5 Scan172 | |
| The final 10,000-mile road test and bench examination of controllable shock dampers for the 22-EX model. | 29th Dec 1933 | Box 16 \ 5 Scan173 | |
| Issues with pipe lines, oil loss, dampers, and various loose components. | 20th Dec 1933 | Box 16 \ 5 Scan174 | |
| The 10,000-mile test report of controllable shock dampers and their subsequent standardisation. | 2nd Jan 1934 | Box 16 \ 5 Scan175 | |
| Uncomfortable ride quality from the Phantom II Damper Control and proposed governor alterations. | 2nd Jan 1934 | Box 16 \ 5 Scan176 | |
| Development of damper control for the 22-EX model to improve riding comfort by reducing front axle load. | 3rd Jan 1934 | Box 16 \ 5 Scan177 | |
| The performance, testing, and proposed alterations for controllable shock dampers. | 1st Jan 1934 | Box 16 \ 5 Scan178 | |
| Trials and modifications for controllable shock dampers, recommending a reduced ball pin load on the front axle. | 12th Jan 1934 | Box 16 \ 5 Scan179 | |
| Two blueprints for a hydraulic shock damper with a controlled valve for the Phantom II chassis. | 22th Feb 1934 | Box 16 \ 5 Scan180 | |
| Modifications to the front and rear shock dampers for the Phantom II chassis. | 22th Feb 1934 | Box 16 \ 5 Scan181 | |
| Order for six 'Perfect' Oil Retainers for 40/50 HP Shock Dampers. | 23th Mar 1934 | Box 16 \ 5 Scan182 | |
| Knocking noise complaint concerning 40/50 shock dampers. | 17th Apr 1934 | Box 16 \ 5 Scan183 | |
| Knocking noise in the governor-controlled shock dampers for the 40/50 HP model. | 18th Apr 1934 | Box 16 \ 5 Scan184 | |
| Noise complaints and testing of 40/50 HP shock dampers. | 19th Apr 1934 | Box 16 \ 5 Scan185 | |
| Diagnosis and temporary repair of knocking dampers caused by air locks on two vehicles. | 23th Apr 1934 | Box 16 \ 5 Scan186 | |
| Technical letter discussing troubleshooting and testing of 40/50 Controllable Shock Dampers. | 24th Apr 1934 | Box 16 \ 5 Scan187 | |
| Depot sheet explaining the operation and testing procedure for the Ph.II Controllable Shock Dampers system. | 5th Jun 1934 | Box 16 \ 5 Scan188 | |
| Specifications for pressure control settings corresponding to road speed, governor valve regulation, and shock damper loads. | 5th Jun 1934 | Box 16 \ 5 Scan189 | |
| Procedure for bench testing dampers, including checking operation and maximum ball pin load. | 5th Jun 1934 | Box 16 \ 5 Scan190 | |
| Modifications to controllable dampers for 40/50 cars. | 13th Jun 1934 | Box 16 \ 5 Scan191 | |
| Modification to Ph.II Controllable Dampers by adding grooves to the pistons to improve ride quality. | 19th Jun 1934 | Box 16 \ 5 Scan192 | |
| Performance issues with Controllable Dampers and the plan to fit them to Trials cars for further evaluation. | 21th Jun 1934 | Box 16 \ 5 Scan193 | |
| Urgent request to build a set of Ph.ll shock dampers with specific modifications for London Trials Cars. | 23th Jun 1934 | Box 16 \ 5 Scan194 | |
| Requesting the scrapping of a previously issued memo sent in error, with a replacement attached. | 25th Jun 1934 | Box 16 \ 5 Scan195 | |
| Arranging a visit to demonstrate and test the Phantom II controllable damper system. | 15th Jun 1934 | Box 16 \ 5 Scan196 | |
| The successful modification and ongoing issues with Controllable Shock Dampers on 40/50 HP cars. | 28th Jun 1934 | Box 16 \ 5 Scan197 | |
| Modifications and issues with controllable shock dampers on 40/50 HP cars. | 28th Jun 1934 | Box 16 \ 5 Scan198 | |
| Seeking clarification on carrying out shock damper modifications on 40/50 HP chassis at coachbuilders. | 29th Jun 1934 | Box 16 \ 5 Scan199 | |
| Issues with dirt in controllable shock damper governor units and the proposed solutions. | 29th Jun 1934 | Box 16 \ 5 Scan200 | |
| Letter concerning the poor riding qualities of a customer's car, 2-PY, and the arrangement of new shock absorber parts. | 29th Jun 1934 | Box 16 \ 5 Scan201 | |
| Instruction regarding modifications to shock dampers on 40/50 cars before despatch. | 29th Jun 1934 | Box 16 \ 5 Scan202 | |
| Request for grooved pistons and modifications to the valve damping disc for controllable dampers on a 2-PY chassis. | 30th Jun 1934 | Box 16 \ 5 Scan203 | |
| Difficulty and modifications required for controllable dampers on a 2-PY car. | 30th Jun 1934 | Box 16 \ 5 Scan204 | |
| Information sheet detailing modifications to controllable shock dampers, specifically grooves in pistons and increased valve damping disc clearance. | 30th Jun 1934 | Box 16 \ 5 Scan205 | |
| The modification of shock dampers for the 40/50 HP chassis. | 2nd Jul 1934 | Box 16 \ 5 Scan206 | |
| Strategy for handling chassis at coachbuilders and depots regarding shock dampers. | 3rd Jul 1934 | Box 16 \ 5 Scan207 | |
| Recommendation to modify shock damper pistons on 140 cars that have left the Works. | 3rd Jul 1934 | Box 16 \ 5 Scan208 | |
| Order of copper piping for Ph.II shock damper tests. | 4th Jul 1934 | Box 16 \ 5 Scan209 | |
| Request to build a pair of Phantom II rear shock damper connecting tube links and unions for shock damper casings. | 4th Jul 1934 | Box 16 \ 5 Scan210 | |
| Contamination issues and suggested improvements for controllable shock dampers. | 4th Jul 1934 | Box 16 \ 5 Scan211 | |
| Fitting new pistons to shock dampers and proposed spring changes for chassis 2-PY. | 9th Jul 1934 | Box 16 \ 5 Scan212 | |
| Specification for the maximum pressure settings of the Shock Damper Governor Unit Safety Release Valve for various chassis. | 12th Jul 1934 | Box 16 \ 5 Scan213 | |
| Standardisation of controllable shock dampers, involving grooves in pistons and increased clearance for the valve damping disc. | 13th Jun 1934 | Box 16 \ 5 Scan214 | |
| Directive on parts standardisation, changing valve AV14V to OBV2 with no extra tool cost. | 12th Jun 1934 | Box 16 \ 5 Scan215 | |
| Standardisation of rear shock dampers with strengthened main cylinders, smaller feet, and increased diameter bolts. | 21th Aug 1934 | Box 16 \ 5 Scan216 | |
| Part standardisation proposal for rear brake drums with detachable liners, including cost estimates. | 18th Mar 1926 | Box 16 \ 5 Scan217 | |
| Request to build a modified Shock Damper Governor Unit for 28-EX to overcome issues with dirt. | 4th Jan 1935 | Box 16 \ 5 Scan218 | |
| Increase in the initial load for Ph.II shock dampers on Continental sprung cars. | 4th Jan 1935 | Box 16 \ 5 Scan219 | |
| Standardisation of parts to increase the initial load of shock dampers to 80 lbs for cars with continental road springs. | 8th Jan 1935 | Box 16 \ 5 Scan220 | |
| Requesting modification to shock damper levers for use with 10-inch initial deflection front road springs. | 12th Feb 1935 | Box 16 \ 5 Scan221 | |
| The permissible load on controllable shock dampers for Phantom II and Bentley chassis. | 26th Sep 1935 | Box 16 \ 5 Scan222 | |
| Instructions and advice for setting the initial shock damper loads on a Continental Phantom II. | 1st Oct 1935 | Box 16 \ 5 Scan223 | |
| The dispatch of 40/50 chassis without the standard oil syringe and arranging for their subsequent delivery. | 27th Jul 1923 | Box 16 \ 6 Scan001 | |
| Reduction of the vehicle tool kit and spares, arguing against making it smaller. | 17th Dec 1926 | Box 16 \ 6 Scan002 | |
| Potential reductions to the car's tool kit, comparing it to competitors. | 21th Jan 1927 | Box 16 \ 6 Scan003 | |
| Scheme for a tool box in the running board for car EAC. 7. | 21th Jan 1927 | Box 16 \ 6 Scan004 | |
| Design, sourcing of parts, and manufacturing of tool boxes for the EAC.7 car. | 1st Feb 1927 | Box 16 \ 6 Scan005 | |
| Proposed housing and position for the jack and pump. | 8th Mar 1927 | Box 16 \ 6 Scan006 | |
| Rejected proposal to use Staybrite for the protecting cover of a toolbox on the running board. | 11th Mar 1927 | Box 16 \ 6 Scan007 | |
| Design alterations and the importance of using existing parts to minimize tools and stock. | 13th Mar 1928 | Box 16 \ 6 Scan008 | |
| Modifications to the 'SS' front axle control and shock damper. | 19th Jun 1928 | Box 16 \ 6 Scan009 | |
| Improvements for Phantom and 'SS' models, focusing on the tool kit, side lamps, and screen wiper. | 17th Oct 1928 | Box 16 \ 6 Scan010 | |
| Post Office Telegram regarding a promised box without inside fittings. | 22th Nov 1928 | Box 16 \ 6 Scan011 | |
| The required blade sizes for a feeler gauge for the SS. unit. | 12th Aug 1928 | Box 16 \ 6 Scan012 | |
| The collection of wings and steps from Hooper's, and a new scheme for valances and toolboxes for EX-series cars. | 1st Dec 1928 | Box 16 \ 6 Scan013 | |
| Design and supply of toolboxes for various car models. | 8th Jan 1929 | Box 16 \ 6 Scan014 | |
| Reduction of the toolkit for the SS Phantom & 20 HP models. | 19th Apr 1929 | Box 16 \ 6 Scan015 | |
| Reduction of the toolkit for the Phantom & 20 HP models due to weight and storage space issues. | 18th Apr 1929 | Box 16 \ 6 Scan016 | |
| Examining the possibility of reducing and dividing the S.S. & Phantom tool kit. | 1st May 1929 | Box 16 \ 6 Scan017 | |
| Breakdown of the weights of tools in the kit for S.S. and Phantom models. | 1st May 1929 | Box 16 \ 6 Scan018 | |
| List of tools and spares rarely required on the road for the S.S. Phantom model. | 1st May 1929 | Box 16 \ 6 Scan019 | |
| Reduction of tool kits carried on the Phantom and 20 HP cars. | 1st May 1929 | Box 16 \ 6 Scan020 | |
| List of standard and proposed additional tools for a vehicle, with a request for review and suggestions. | 1st May 1929 | Box 16 \ 6 Scan021 | |
| Reduction of tools provided in the vehicle's standard kit, specifically for the Phantom model. | 1st May 1929 | Box 16 \ 6 Scan022 | |
| Additions to the standard car tool kit following a reduction. | 3rd May 1929 | Box 16 \ 6 Scan023 | |
| Requesting comments on the reduction of tool kits carried on cars. | 10th May 1929 | Box 16 \ 6 Scan024 | |
| The reduction of standard chassis tool kits and the requirements for a long-journey tool box. | 22th May 1929 | Box 16 \ 6 Scan025 | |
| Questioning the inclusion of both an oil syringe and a Lucas oil can in chassis tool kits. | 23th Dec 1929 | Box 16 \ 6 Scan026 | |
| Recommendation to include both a Lucas oiler and a syringe in the standard chassis tool kits. | 1st Mar 1930 | Box 16 \ 6 Scan027 | |
| Minutes of a conference detailing decisions on tool kits for 40/50 HP and 20/25 HP chassis. | 23th May 1930 | Box 16 \ 6 Scan028 | |
| Packing note listing the spares and tools supplied with a 40/50 HP Chassis. | 8th Jan 1930 | Box 16 \ 6 Scan029 | |
| Proposing alterations to the recommended list of tools and spares for both chassis tool kits. | 4th Jun 1930 | Box 16 \ 6 Scan030 | |
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