| Description | Date | Identifier | |
| Letter from India Tyre & Rubber Co. regarding tyre options and load capacities for a Colonial Bentley chassis. | 15th Dec 1934 | Box 29 \ 4 Scan252 | |
| Page 2 of a letter to W.A. Robotham, Esq. discussing road racing, tyre testing, and a specific Bentley chassis. | 15th Dec 1934 | Box 29 \ 4 Scan253 | |
| Letter from India Tyre & Rubber Company regarding sending two new tyres for testing and a change in buttress design. | 17th Dec 1934 | Box 29 \ 4 Scan254 | |
| Load and inflation table for low and medium pressure tyres. | 17th Dec 1934 | Box 29 \ 4 Scan255 | |
| Data sheet and recommendations for 'Speed Special' and 'Super Special' tyres for use in India. | 18th Dec 1934 | Box 29 \ 4 Scan256 | |
| Letter to The Earl of Rothes at The India Tyre & Rubber Co. Ltd. acknowledging receipt of correspondence. | 18th Dec 1934 | Box 29 \ 4 Scan257 | |
| Authorising payment for an invoice regarding India Tyres & Tubes sent to France. | 18th Dec 1934 | Box 29 \ 4 Scan258 | |
| Letter requesting assistance for Mr. Leslie Hawkins regarding coachwork by Park Wards for two newly purchased Bentley chassis. | 19th Dec 1934 | Box 29 \ 4 Scan259 | |
| Letter to The India Tyre & Rubber Co. Ltd. acknowledging their letter and promising an opinion on their tyres after testing. | 19th Dec 1934 | Box 29 \ 4 Scan260 | |
| Letter from the India Tyre & Rubber Company Ltd. regarding mounting an experimental body on two Bentley chassis for Mr. Leslie Hawkins. | 20th Dec 1934 | Box 29 \ 4 Scan261 | |
| Letter to The Earl of Rothes regarding assistance for a father-in-law's car body and an upcoming Bentley chassis delivery. | 27th Dec 1934 | Box 29 \ 4 Scan262 | |
| Letter from India Tyre & Rubber Company requesting an introduction to Mr. E.R. Hall to discuss his use of their tyres for road racing. | 27th Dec 1934 | Box 29 \ 4 Scan263 | |
| Letter to The Earl of Rothes providing two addresses for a Mr. Hall. | 31th Dec 1934 | Box 29 \ 4 Scan264 | |
| Letter to E.R. Hall discussing the potential use of India Tyres versus Dunlops for Bentley competition work. | 31th Dec 1934 | Box 29 \ 4 Scan265 | |
| Meeting notes from Derby discussing a Bentley test car failure and a valve modification scheme. | 14th Jun 1934 | Box 30 \ 1 Scan001 | |
| Meeting notes discussing supercharging the Bentley, and updates on the Phantom II, 20/25 HP, gearboxes, and cylinder boring. | 15th Jun 1934 | Box 30 \ 1 Scan002 | |
| Meeting notes discussing gearboxes for 20/25 and Bentley models, and the 'Wraith' engine design and size. | 15th Jun 1934 | Box 30 \ 1 Scan003 | |
| Meeting notes discussing the Spectre engine, chassis electrical system, and flexible engine mountings. | 15th Jun 1934 | Box 30 \ 1 Scan004 | |
| Notes from a meeting at Derby discussing Bentley test cars and valve modifications. | 14th Jun 1934 | Box 30 \ 1 Scan005 | |
| Meeting notes discussing supercharging the Bentley, chassis tests for the Phantom II and 20/25 HP, and developments in gearboxes and cylinder boring. | 15th Jun 1934 | Box 30 \ 1 Scan006 | |
| Meeting notes discussing synchromesh gearboxes, 'Textolite' gears, and 'Wraith' engine and chassis design. | 15th Jun 1934 | Box 30 \ 1 Scan007 | |
| Meeting notes regarding the Spectre engine, chassis electrical systems, and flexible engine mountings. | 5th Jun 1934 | Box 30 \ 1 Scan008 | |
| Meeting notes from Derby discussing Bentley chassis development, test cars, and supercharging. | 6th Jul 1934 | Box 30 \ 1 Scan009 | |
| Meeting notes regarding testing and modifications for the Phantom II and 20/25 HP chassis, including gearboxes. | 6th Jul 1934 | Box 30 \ 1 Scan010 | |
| Notes from a meeting discussing developments in gearboxes, cylinder boring, engines, and other vehicle components. | 5th Jul 1914 | Box 30 \ 1 Scan011 | |
| Meeting notes on a chassis changeover switch for Bentleys and a lubrication plate update. | 17th Jul 1934 | Box 30 \ 1 Scan012 | |
| Meeting notes from Derby discussing Bentley chassis development, including a 10,000 miles test car and supercharging. | 5th Jul 1934 | Box 30 \ 1 Scan013 | |
| Meeting notes discussing chassis updates and gearbox options for the Phantom II and 20/25 HP models. | 6th Jul 1934 | Box 30 \ 1 Scan014 | |
| Meeting notes discussing gearboxes, cylinder boring, engines, and other components for various car models. | 1st Jul 1934 | Box 30 \ 1 Scan015 | |
| Meeting notes regarding a chassis changeover switch for Bentleys and lubrication plate specifications. | 6th Jul 1934 | Box 30 \ 1 Scan016 | |
| Notes of a meeting at Derby discussing proposed chassis and engine modifications for a Bentley 10,000-mile test car. | 24th Jul 1934 | Box 30 \ 1 Scan017 | |
| Notes of a meeting discussing development progress on various chassis components and models. | 25th Jul 1934 | Box 30 \ 1 Scan018 | |
| Meeting notes discussing the Wraith and Spectre engines, gears, and experimental cars. | 25th Jul 1934 | Box 30 \ 1 Scan019 | |
| Minutes of a meeting discussing the quality of car bodies and securing a higher standard for the complete car. | 25th Jul 1934 | Box 30 \ 1 Scan020 | |
| Report discussing criticisms of car bodies, cooperation with coachbuilders, and proposals for technical improvements. | 25th Jul 1934 | Box 30 \ 1 Scan021 | |
| Meeting minutes discussing car body defects, hardware design, and comparisons with Cadillac bodies. | 25th Jul 1934 | Box 30 \ 1 Scan022 | |
| Meeting notes discussing the manufacture of hardware for coachbuilders and the scheduling of committee meetings. | 11th Sep 1934 | Box 30 \ 1 Scan023 | |
| Notes of a meeting held at Derby discussing the Bentley chassis, test cars, and future series. | 11th Sep 1934 | Box 30 \ 1 Scan024 | |
| Continuation of meeting notes discussing supercharging, brake judder, and engine mounting on various car models. | 12th Sep 1934 | Box 30 \ 1 Scan025 | |
| Meeting notes discussing vehicle standardization, test car issues, and design progress on gearboxes and the Wraith model. | 2nd Sep 1934 | Box 30 \ 1 Scan026 | |
| Meeting notes discussing the completion of a Spectre chassis and work on a Dubonnet suspension experiment. | 12th Sep 1934 | Box 30 \ 1 Scan027 | |
| Cover note for circulating meeting notes regarding standardisation tests on 20/25 HP, Bentley and P.2. car models. | 21th Sep 1934 | Box 30 \ 1 Scan028 | |
| Meeting notes on standardisation tests in France for 20/25 HP, Bentley, and P.2 chassis. | 2nd Sep 1934 | Box 30 \ 1 Scan029 | |
| List of decisions on parts and materials for the 'D' Series Bentley. | 2nd Sep 1934 | Box 30 \ 1 Scan030 | |
| Production status of components and investigation into engine mounting failures from a 20/25 HP 15,000-mile test. | 2nd Sep 1934 | Box 30 \ 1 Scan031 | |
| Meeting notes discussing issues and solutions for gearbox mountings, spare wheel carriers, and clutches. | 2nd Sep 1934 | Box 30 \ 1 Scan032 | |
| Various vehicle faults including clutch, oil pressure, and exhaust issues. | 2nd Sep 1934 | Box 30 \ 1 Scan033 | |
| Report discussing component issues and proposed solutions for breather pipes, retaining nuts, petrol systems, and thermometer pipes. | 2nd Sep 1934 | Box 30 \ 1 Scan034 | |
| Meeting notes discussing design adjustments for various automotive components, including those for Bentley models. | 2nd Sep 1934 | Box 30 \ 1 Scan035 | |
| Meeting notes discussing the standardization of various car components like valves, cylinder heads, pedals, pipes, and servos. | 2nd Sep 1934 | Box 30 \ 1 Scan036 | |
| Report page discussing the Axle Pinion, Lagged Intermediate Silencer, Geared Starter Motor, and Small Dynamo. | 2nd Sep 1934 | Box 30 \ 1 Scan037 | |
| Report discussing component performance, testing, and design considerations for various car parts. | 2nd Sep 1934 | Box 30 \ 1 Scan038 | |
| Bonnet rattling, oil leaks from equaliser shafts, and modifications to the Phantom II second-speed synchromesh gearbox. | 2nd Sep 1934 | Box 30 \ 1 Scan039 | |
| Minutes discussing modifications to a sliding piece, cones, springs, brake drums, hydraulic tappets, and engine mountings. | 2nd Sep 1934 | Box 30 \ 1 Scan040 | |
| Pedal mounting modifications and a list of new features for the future Spectre chassis program. | 2nd Sep 1934 | Box 30 \ 1 Scan041 | |
| List of design considerations and decisions for a new chassis, covering engine, transmission, and ground clearance. | 2nd Sep 1934 | Box 30 \ 1 Scan042 | |
| Meeting notes discussing chassis clearances, a variable periodicity device, steering, and body procurement. | 31th Aug 1934 | Box 30 \ 1 Scan043 | |
| Covering note for minutes of a meeting discussing standardisation tests in France on the 20/25 HP, Bentley 4-B-IV, and P.2. cars. | 31th Aug 1934 | Box 30 \ 1 Scan044 | |
| Notes of a meeting discussing standardisation points for 20/25 HP, Bentley, and F.2. chassis. | 21th Sep 1934 | Box 30 \ 1 Scan045 | |
| Meeting notes detailing decisions made on various components for the 'D' Series Bentley. | 21th Sep 1934 | Box 30 \ 1 Scan046 | |
| Production status of various components and an investigation into engine mounting failures from a 15,000 miles test. | 21th Sep 1934 | Box 30 \ 1 Scan047 | |
| Meeting notes discussing failures and design modifications for gearbox, engine stays, spare wheel carrier, and clutch components. | 21th Sep 1934 | Box 30 \ 1 Scan048 | |
| Faults found with a vehicle, including clutch slipping, engine oil pressure loss, oil leaks, and issues with the exhaust valve seats. | 21th Sep 1934 | Box 30 \ 1 Scan049 | |
| Design improvements for breather pipes, rocker cover nuts, petrol systems, and thermometer pipes. | 21th Sep 1934 | Box 30 \ 1 Scan050 | |
| Page of meeting notes discussing design adjustments for various automobile components, including brakes, steering, radiator, and engine parts. | 21th Sep 1934 | Box 30 \ 1 Scan051 | |
| Agreements on the standardisation of various components including valves, cylinder heads, pedals, and petrol pipes. | 21th Sep 1934 | Box 30 \ 1 Scan052 | |
| Design modifications and test results for axle, silencer, starter, and dynamo components. | 21th Sep 1934 | Box 30 \ 1 Scan053 | |
| Report discussing the performance and standardization of various components, including headlamps, dampers, and radiators for Bentley and Spectre chassis. | 21th Sep 1934 | Box 30 \ 1 Scan054 | |
| Issues and proposed modifications for rattling bonnet plates, oil leaks, and a Phantom II synchromesh gearbox. | 21th Sep 1934 | Box 30 \ 1 Scan055 | |
| Meeting notes discussing potential modifications for a second speed sliding piece, front brakes, hydraulic tappets, and engine mounting. | 21th Sep 1934 | Box 30 \ 1 Scan056 | |
| The future programme and new features for the Spectre chassis. | 21th Sep 1934 | Box 30 \ 1 Scan057 | |
| List of design decisions and action points regarding engine and chassis components. | 21th Sep 1934 | Box 30 \ 1 Scan058 | |
| Meeting notes discussing chassis clearance, steering tests, and body procurement, with a comparison to a Cadillac. | 26th Oct 1934 | Box 30 \ 1 Scan059 | |
| Meeting notes from Derby discussing the Bentley chassis, including testing, stabilising bar, radiator, dynamo and supercharging. | 26th Oct 1934 | Box 30 \ 1 Scan060 | |
| Modifications and testing for the Phantom II, 20/25, and Spectre models. | 29th Oct 1934 | Box 30 \ 1 Scan061 | |
| Typed memorandum discussing Dubonnet suspension, Wilson gearbox, the Wraith model, and testing of competitor vehicles. | 29th Oct 1934 | Box 30 \ 1 Scan062 | |
| Inviting staff to a coachbuilders conference and lunch in Derby. | 6th Nov 1934 | Box 30 \ 1 Scan063 | |
| Cover note distributing the agenda for the Second Coachwork Conference. | 9th Nov 1934 | Box 30 \ 1 Scan064 | |
| Agenda and minutes for a second coachwork conference, discussing body complaints, streamline designs, and hardware. | 9th Nov 1934 | Box 30 \ 1 Scan065 | |
| List of points covering body standardisation, coachbuilder cooperation, tool storage, and Spectre chassis modifications. | 4th Oct 1934 | Box 30 \ 1 Scan066 | |
| From Hs to Wor outlining a list of experimental chassis, engines, and parts required within six months for an upcoming meeting. | 9th Nov 1934 | Box 30 \ 1 Scan067 | |
| Arranging a meeting to discuss the chassis programme. | 16th Nov 1934 | Box 30 \ 1 Scan068 | |
| Meeting notes discussing the specifications for the first six Spectre chassis. | 16th Nov 1934 | Box 30 \ 1 Scan069 | |
| Build instruction sheet detailing the quantity and specification of parts for assembly. | 16th Nov 1934 | Box 30 \ 1 Scan070 | |
| List of build instructions and modifications for various automotive components and systems. | 13th Nov 1934 | Box 30 \ 1 Scan071 | |
| Build and modification schedule for various vehicle components, including brakes, axles, and suspension. | 13th Nov 1934 | Box 30 \ 1 Scan072 | |
| List of action items and status updates for the procurement and assembly of various chassis components. | 15th Nov 1934 | Box 30 \ 1 Scan073 | |
| Progress report and specification sheet listing actions for various vehicle components. | 15th Nov 1934 | Box 30 \ 1 Scan074 | |
| List of vehicle electrical components and associated assembly instructions. | 22th Nov 1934 | Box 30 \ 1 Scan075 | |
| Meeting notes from Derby discussing the Spectre project's need for secrecy and decisions on experimental chassis and bodies. | 22th Nov 1934 | Box 30 \ 1 Scan076 | |
| Meeting notes discussing the progress and specifications of experimental cars, including bumper tests and design features. | 22th Nov 1934 | Box 30 \ 1 Scan077 | |
| Meeting notes discussing design issues and component improvements for several models. | 22th Nov 1934 | Box 30 \ 1 Scan078 | |
| Meeting notes on development decisions for the Phantom II, Wraith, gearboxes, and suspension. | 22th Nov 1934 | Box 30 \ 1 Scan079 | |
| Notes of a meeting discussing higher compression engines for the Continental Spectre, Wraith and Bentley. | 22th Nov 1934 | Box 30 \ 1 Scan080 | |
| Notes of a meeting held in Derby discussing a pivot pin mishap on a Bentley and progress on the Spectre model garage. | 20th Dec 1934 | Box 30 \ 1 Scan081 | |
| Meeting notes on chassis design, testing setbacks, jacking systems, and an experimental Bentley car. | 21th Dec 1934 | Box 30 \ 1 Scan082 | |
| Notes from a meeting discussing design alterations, component updates for radiators and dynamos, and solutions for brake complaints. | 1st Dec 1934 | Box 30 \ 1 Scan083 | |
| Notes of a meeting discussing issues with shock absorbers, brake performance, and 'tramp' on experimental vehicles. | 21th Dec 1934 | Box 30 \ 1 Scan084 | |
| Meeting notes discussing modifications and issues with front and rear brake systems. | 21th Dec 1934 | Box 30 \ 1 Scan085 | |
| Meeting notes discussing component trials, design decisions for bumpers and cross members, and identified faults on Bentley cars. | 21th Dec 1934 | Box 30 \ 1 Scan086 | |
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