| Description | Date | Identifier | |
| The selection of piston F.59293 for the J.III. type damper. | 2nd Nov 1932 | Box 105 \ 3 scan0291 | |
| Drawing detailing modifications for air vent grooves in a piston. | 26th Oct 1938 | Box 105 \ 3 scan0292 | |
| Problems and modifications to a shock damper conical valve with a disc head. | 11th Nov 1932 | Box 105 \ 3 scan0293 | |
| Rig testing and modifications to a damper and governor control system, referencing specific diagrams. | 11th Nov 1932 | Box 105 \ 3 scan0294 | |
| Shock damper and governor control tests, including analysis of damping, load, oil viscosity, and tabulated pressure gauge readings. | 11th Nov 1932 | Box 105 \ 3 scan0295 | |
| Car in France, detailing its components and commenting on its high-speed stability and silent dampers. | 11th Nov 1935 | Box 105 \ 3 scan0296 | |
| Series of six performance graphs for the J.III. Rear component under varying low and high pressure conditions. | 11th Nov 1935 | Box 105 \ 3 scan0297 | |
| Three performance indicator diagrams for a 90/90 Lb 2' stroke low-pressure system under various conditions and RPMs. | 11th Nov 1935 | Box 105 \ 3 scan0298 | |
| Three graphs illustrating 2' stroke low-pressure performance at various RPMs and temperatures. | 11th Nov 1935 | Box 105 \ 3 scan0299 | |
| Set of six graphs comparing performance at various RPMs under different high and low pressure and venting conditions. | 11th Nov 1935 | Box 105 \ 3 scan0300 | |
| Four graphs showing performance data for governor pipes under varying RPM, stroke, and speed conditions. | 17th Oct 1932 | Box 105 \ 3 scan0301 | |
| Four performance diagrams for a J III Rear 40/40 Lb. High Pressure system with governor pipes. | 17th Oct 1932 | Box 105 \ 3 scan0302 | |
| Three low-pressure test graphs showing performance at different RPM and stroke settings. | 18th Oct 1932 | Box 105 \ 3 scan0303 | |
| Blueprint detailing a modification for air vent grooves in a piston. | 26th Oct 1938 | Box 105 \ 3 scan0304 | |
| Graph showing time of efflux curves from a Redwood No. 1 viscometer for various oils at different temperatures. | 19th Nov 1932 | Box 105 \ 3 scan0305 | |
| Request for a copy of a document regarding J.S. shock damper valve arrangements. | 19th Nov 1932 | Box 105 \ 3 scan0306 | |
| Oil loss from J.III type shock dampers and proposed solutions. | 9th Dec 1932 | Box 105 \ 3 scan0307 | |
| Modifications to the pedal mounting for the Japan 3 shock damper control. | 3rd Jan 1933 | Box 105 \ 3 scan0308 | |
| Decision to order materials for new 20/25 HP shock absorbers. | 4th Jan 1933 | Box 105 \ 3 scan0309 | |
| Modifications to the lever in the rocking shaft for J 3 type dampers. | 23th Jan 1933 | Box 105 \ 3 scan0310 | |
| List of weights for different valve types for J.III type dampers. | 23th Jan 1933 | Box 105 \ 3 scan0311 | |
| Use of a modified, simpler spring-loaded gland for J.3. type dampers. | 25th Jan 1933 | Box 105 \ 3 scan0312 | |
| Request to test the J.III type shock damper mounting on the 25 HP bumper chassis. | 30th Jan 1933 | Box 105 \ 3 scan0313 | |
| Specifications for J.111 type dampers for 40/50 & 25 HP production. | 3rd Feb 1933 | Box 105 \ 3 scan0314 | |
| Experimental development and production of a square shaft for shock dampers. | 4th Feb 1933 | Box 105 \ 3 scan0315 | |
| Introduction of improved shock dampers for the O.2 and 20/25 HP 'Z' series chassis. | 6th Feb 1933 | Box 105 \ 3 scan0316 | |
| Requesting an update on the investigation into improved shock dampers for 'O' and 'Z' series chassis. | 30th Jan 1933 | Box 105 \ 3 scan0317 | |
| The damper governor unit for the 20/25 chassis, discussing schematics and a potential modification to its connections. | 7th Feb 1933 | Box 105 \ 3 scan0318 | |
| The standardisation, production issues, and design alteration of 25 HP rear shock dampers. | 11th Feb 1933 | Box 105 \ 3 scan0319 | |
| Implementation of automatic damper control for the 20/25 model by modifying the gearbox. | 13th Mar 1933 | Box 105 \ 3 scan0320 | |
| Deceleration tests for J.III type shock dampers. | 14th Mar 1933 | Box 105 \ 3 scan0321 | |
| Loan of a shock absorber removed from a production 20/25HP chassis. | 25th Mar 1933 | Box 105 \ 3 scan0322 | |
| Responding to queries about J.S. Type dampers, including modifications and test results. | 29th Mar 1933 | Box 105 \ 3 scan0323 | |
| Review of new adjustable shock dampers, comparing fixed loads with hand and automatic controls. | 29th Mar 1933 | Box 105 \ 3 scan0324 | |
| Report discussing the development and standardisation of shock damper and governor control systems for car models 27-EX and 25 HP. | 29th Mar 1933 | Box 105 \ 3 scan0325 | |
| Page from a memo discussing a fix involving a damper and its application to the 25 HP model. | 4th Apr 1933 | Box 105 \ 3 scan0326 | |
| The manufacture of parts for new J.III type shock absorbers. | 4th Apr 1933 | Box 105 \ 3 scan0327 | |
| Blueprint for a valve, showing dimensions, tolerances, and notes on quantity and fittings. | 3rd Apr 1933 | Box 105 \ 3 scan0328 | |
| Blueprint detailing modifications to an existing casting for a larger valve chamber. | 3rd Apr 1933 | Box 105 \ 3 scan0329 | |
| Suggestion to use locking plates on 25 HP front shock dampers to prevent bolts turning during removal. | 19th Apr 1933 | Box 105 \ 3 scan0330 | |
| Expected alteration to J.III type shock dampers, instructing a slow-down in production to avoid scrap. | 20th Apr 1933 | Box 105 \ 3 scan0331 | |
| Production settings and specifications for J.III type dampers for 25 HP and 40/50 HP models. | 6th May 1933 | Box 105 \ 3 scan0332 | |
| Observations and proposed modifications for J.3. Type dampers based on production drawings. | 27th Mar 1933 | Box 105 \ 3 scan0333 | |
| Test report on the J.III type shock damper's N.S.3670 HDY valve, comparing its performance with and without an integral 'hat'. | 5th May 1933 | Box 105 \ 3 scan0334 | |
| Graphs comparing valve performance at various RPMs and overlap settings. | 5th May 1933 | Box 105 \ 3 scan0335 | |
| Four indicator diagrams comparing performance with and without a valve damping cylinder and at different valve overlap settings. | 24th Feb 1933 | Box 105 \ 3 scan0336 | |
| Standardisation of J.III type shock dampers and brackets. | 24th Feb 1933 | Box 105 \ 3 scan0337 | |
| Record detailing the introduction of a new part for the '51 in Z. series' chassis, including costs and test dates. | 3rd Jun 1933 | Box 105 \ 3 scan0338 | |
| Requirement and fitting of controllable dampers and a governor system for two 25 HP chassis. | 13th Oct 1933 | Box 105 \ 3 scan0339 | |
| Modifications to the J.3 Damper Governor Casing and its accessibility. | 19th Oct 1933 | Box 105 \ 3 scan0340 | |
| Drawings for 20/25 HP Hand Controlled Riding Dampers and the relocation of the mixture control. | 3rd Nov 1933 | Box 105 \ 3 scan0341 | |
| Requesting to hold the current design of 25 HP rear shock damper support brackets due to a new governor system. | 6th Dec 1933 | Box 105 \ 3 scan0342 | |
| Proposal to strengthen the attachment of the front damper plate to the frame for the 20/25 model. | 22th Dec 1933 | Box 105 \ 3 scan0343 | |
| Request to detail an over-riding control spring for 25 HP controllable dampers. | 22th Mar 1934 | Box 105 \ 3 scan0344 | |
| Order for over-riding control valve springs for the 20/25 controllable dampers. | 23th Mar 1934 | Box 105 \ 3 scan0345 | |
| The testing and alteration of 25 HP shock damper brackets. | 23th Mar 1934 | Box 105 \ 3 scan0346 | |
| Specifications for two optional over-riding control springs for the governor control on the 20/25 HP chassis. | 24th Apr 1934 | Box 105 \ 3 scan0347 | |
| Modifications required to adapt the 40/50 damper system for 25 HP cars. | 17th Apr 1934 | Box 105 \ 3 scan0348 | |
| The feasibility of retrofitting the hydraulic damper control system to earlier 20/25 HP chassis. | 26th Apr 1934 | Box 105 \ 3 scan0349 | |
| The final damper system settings for the 25 HP E.2 series chassis. | 13th Jun 1934 | Box 105 \ 3 scan0350 | |
| Specification for the maximum pressure setting of the shock damper governor unit safety release valve for various chassis. | 12th Jul 1934 | Box 105 \ 3 scan0351 | |
| Table of pressure readings for 25 HP production governor units. | 13th Jul 1934 | Box 105 \ 3 scan0352 | |
| The satisfactory testing of the first production governor unit for the 25 HP controllable shock dampers. | 16th Jul 1934 | Box 105 \ 3 scan0353 | |
| Complaints of malfunctioning damper controls on 7 cars, requesting a modified governor unit and extra parts for testing. | 17th Jul 1934 | Box 105 \ 3 scan0354 | |
| Successful modification to the 20/25 HP Controllable Shock Dampers' Governor Unit to fix an oil leak. | 24th Jul 1934 | Box 105 \ 3 scan0355 | |
| Standardisation of parts for governor controlled shock dampers. | 25th Jun 1934 | Box 105 \ 3 scan0356 | |
| Estimated costs for extra jigs, tools, and equipment, and scrap cost details for a new carburetter. | 17th Jul 1934 | Box 105 \ 3 scan0357 | |
| The settings for the 25 HP and Bentley Shock Damper Governor Unit. | 5th Nov 1934 | Box 105 \ 3 scan0358 | |
| Modification to the 20/25 HP chassis front axle control damper. | 13th Nov 1934 | Box 105 \ 3 scan0359 | |
| Modification to the governor valve in the shock damper governor unit to prevent sticking. | 24th May 1935 | Box 105 \ 3 scan0360 | |
| Tool cost and production feasibility for a Bentley 'L' series chassis. | 11th Jul 1935 | Box 105 \ 3 scan0361 | |
| Quarterly complaints of shock absorber knocks on the 20/25 HP and Phantom II models. | 9th Dec 1935 | Box 105 \ 3 scan0362 | |
| The requirement for Autolock dampers for both the front and rear of 25 HP and Bentley chassis. | 14th Dec 1935 | Box 105 \ 3 scan0363 | |
| Dimensions of cast iron bushes fitted to rear shock dampers on a 20/25 chassis. | 11th Dec 1935 | Box 105 \ 3 scan0364 | |
| Proposal to standardize the governor control pipe by using the cheaper 25/30 HP coiled copper pipe on the Bentley chassis. | 8th Apr 1936 | Box 105 \ 3 scan0365 | |
| Substitution of parts for the Governor Control to Dampers on a specific car. | 15th Apr 1936 | Box 105 \ 3 scan0366 | |
| Complaints of knocking noises from shock dampers on all cars except the Phantom III front. | 11th May 1936 | Box 105 \ 3 scan0367 | |
| Instructions for an experimental alteration to an Anchor Bracket for a 25/30 HP Chassis Torque Reaction Damper. | 19th Aug 1936 | Box 105 \ 3 scan0368 | |
| Cause of knocking rear shock dampers due to an undersized bearing. | 19th Sep 1936 | Box 105 \ 3 scan0369 | |
| Drawing showing the shaft diameters of a lever removed from an O.S.R. shock damper, model 22 G IV. | 24th Sep 1936 | Box 105 \ 3 scan0370 | |
| The nearing completion of a 4-speed side lever servo drive and gearbox for the Goshawk. | 27th Jun 1924 | Box 105 \ 4 scan0001 | |
| Points for attention on the 4-speed side change servo drive Goshawk gearbox. | 1st Dec 1924 | Box 105 \ 4 scan0002 | |
| Continued list of notes and proposed modifications for various mechanical components. | 1st Dec 1924 | Box 105 \ 4 scan0003 | |
| Note explaining the function of a square edge on a bore to clean particles from a shaft and prevent wedging. | 1st Jan 1925 | Box 105 \ 4 scan0004 | |
| Secret memo discussing testing requirements for the Goshawk 3 three-speed gearbox with servo. | 1st Jan 1925 | Box 105 \ 4 scan0005 | |
| Two arrangement options for the servo and hand brake on the Goshawk three-speed gearbox. | 10th Jan 1924 | Box 105 \ 4 scan0006 | |
| Authorisation sheet to modify the 'India' plus F.W.B. servo drive worm wheel due to fast wear. | 14th May 1925 | Box 105 \ 4 scan0007 | |
| Authorisation sheet for replacing the straight top worm wheel on the 20 HP Servo Drive. | 15th May 1925 | Box 105 \ 4 scan0008 | |
| Multiplication power of front wheel braking servos and proposed modifications to improve travel and clearance. | 5th Jun 1925 | Box 105 \ 4 scan0009 | |
| Secret memo regarding instructions and modifications for a front wheel braking system. | 8th Jun 1925 | Box 105 \ 4 scan0010 | |
| Mr. Royce's opinion on direct braking versus servo power and proposed modifications to brake cam and lever proportions. | 9th Jun 1925 | Box 105 \ 4 scan0011 | |
| From D.A. to Hs. about altering the proportion of direct braking and its effect on servo efficiencies. | 9th Jun 1925 | Box 105 \ 4 scan0012 | |
| Secret memorandum detailing modifications for front brake adjustment and specific braking performance requirements. | 10th Jun 1925 | Box 105 \ 4 scan0013 | |
| Page two of a typed memorandum discussing the need to act quickly once a course of action is decided. | 10th Jun 1925 | Box 105 \ 4 scan0014 | |
| Diagram and chart analyzing a modified braking system's efficiency and distribution. | 17th Jun 1925 | Box 105 \ 4 scan0015 | |
| The efficiency testing and specifications of the 'INDIA' servo. | 17th Jun 1925 | Box 105 \ 4 scan0016 | |
| Requesting a modification to a servo drive worm wheel for a 4-speed gearbox to reduce its weight. | 3rd Jul 1925 | Box 105 \ 4 scan0017 | |
| Part replacements for the servo motor mechanism on a 20-HP Indian chassis. | 3rd Jul 1925 | Box 105 \ 4 scan0018 | |
| Inquiry about the availability of a slotted link connection for the Servo, required for all 'India' and FWB cars. | 14th Aug 1925 | Box 105 \ 4 scan0019 | |
| Servo rattle complaint in 20 HP cars fitted with 4-wheel brakes. | 1st Aug 1925 | Box 105 \ 4 scan0020 | |
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