| Description | Date | Identifier | |
| P.D.4 layout of the driving position and front-end components for the Bentley 111 chassis. | 25th Aug 1937 | Box 97 \ 1 scan0063 | |
| The revised front end of the Bentley 111 car. | 25th Aug 1937 | Box 97 \ 1 scan0064 | |
| Bentley 111, attaching a print of FD.9. | 4th Sep 1937 | Box 97 \ 1 scan0065 | |
| Modified position of the oil level indicator for the Wraith III and Bentley III models. | 8th Oct 1937 | Box 97 \ 1 scan0066 | |
| Instructions to build four modified Bentley III units based on the Wraith specification. | 11th Oct 1937 | Box 97 \ 1 scan0067 | |
| Incorporation of new valve springs and washers for the experimental Bentley III unit. | 12th Oct 1937 | Box 97 \ 1 scan0068 | |
| Status report outlining the design and detailing work required for components of the Bentley III model. | 13th Oct 1937 | Box 97 \ 1 scan0069 | |
| Continued list of design and detailing work required for vehicle components in G and E sections. | 15th Oct 1937 | Box 97 \ 1 scan0070 | |
| Instructing a change to the flywheel drilling for Bentley III units. | 15th Oct 1937 | Box 97 \ 1 scan0071 | |
| List of 16 action points and status updates for the BENTLEY III project. | 30th Oct 1937 | Box 97 \ 1 scan0072 | |
| Querying whether specifications for the Bentley III and future models are up-to-date. | 12th Nov 1937 | Box 97 \ 1 scan0073 | |
| Agreeing on a method to test and represent the performance of the B.III chassis. | 16th Nov 1937 | Box 97 \ 1 scan0074 | |
| Status report on the production of frames and fittings for the Bentley III model. | 2nd Nov 1937 | Box 97 \ 1 scan0075 | |
| Progress report on various car components with handwritten updates. | 2nd Nov 1937 | Box 97 \ 1 scan0076 | |
| Progress update sheet listing various components and the status of their design schemes and associated deadlines. | 15th Nov 1937 | Box 97 \ 1 scan0077 | |
| Status notes on the development of hydraulic jacks, shock dampers, and control systems. | 15th Nov 1937 | Box 97 \ 1 scan0078 | |
| Production status report on the machining of various automotive components. | 15th Nov 1937 | Box 97 \ 1 scan0079 | |
| Progress report on the status of various vehicle components and their production. | 15th Nov 1937 | Box 97 \ 1 scan0080 | |
| Production status report for rear axle, front brake, and rear brake components with handwritten annotations. | 15th Nov 1937 | Box 97 \ 1 scan0081 | |
| Production status report on various vehicle components, including brake drums, axles, and hubs. | 15th Nov 1937 | Box 97 \ 1 scan0082 | |
| Production status report for cross steering tube and spring suspension components. | 28th Oct 1937 | Box 97 \ 1 scan0083 | |
| Production status report detailing the manufacturing progress of various components. | 28th Oct 1937 | Box 97 \ 1 scan0084 | |
| Progress report on engine component manufacturing instructions and specifications. | 28th Oct 1937 | Box 97 \ 1 scan0085 | |
| Instruction and status list for various engine components, mostly for the Wraith III model. | 28th Oct 1937 | Box 97 \ 1 scan0086 | |
| List of instructions for various engine components, noting which are to be as 'Wraith III'. | 28th Oct 1937 | Box 97 \ 1 scan0087 | |
| Status list for various car components with typed and handwritten notes. | 16th Nov 1937 | Box 97 \ 1 scan0088 | |
| Specification document for the Bentley III car. | 16th Nov 1937 | Box 97 \ 1 scan0089 | |
| Specification list for various vehicle components. | 16th Nov 1937 | Box 97 \ 1 scan0090 | |
| Specification sheet detailing changes to the car body dimensions and features. | 16th Nov 1937 | Box 97 \ 1 scan0091 | |
| Instructing that work on Bentleys be assigned to Phoenix or B.III order numbers. | 16th Nov 1937 | Box 97 \ 1 scan0092 | |
| Minutes of a conference concerning the Bentley III model, discussing frames, wing stays, engine mounting, and rear suspension. | 24th Nov 1937 | Box 97 \ 1 scan0093 | |
| Meeting minutes detailing agreed actions for various car components, including steering, petrol tank, and pedals. | 24th Nov 1937 | Box 97 \ 1 scan0094 | |
| Meeting notes discussing the status of dashboard fittings, shock dampers, governor controls, and flywheel/clutch designs. | 24th Nov 1937 | Box 97 \ 1 scan0095 | |
| Meeting notes or memo discussing progress and actions for various vehicle components. | 24th Nov 1937 | Box 97 \ 1 scan0096 | |
| Technical report or meeting minutes discussing updates on various vehicle components. | 24th Nov 1937 | Box 97 \ 1 scan0097 | |
| Meeting notes or action items regarding the radiator and side spare wheel carrier. | 24th Nov 1937 | Box 97 \ 1 scan0098 | |
| History and comparison of the Bentley B.III and B.50 projects. | 25th Nov 1937 | Box 97 \ 1 scan0099 | |
| Comparison of B.III and B.50 chassis specifications and project proposals for body modifications. | 25th Nov 1937 | Box 97 \ 1 scan0100 | |
| Project proposal document comparing design specifications for Projects No.4 (B.III vs B.50) and No.5. | 25th Nov 1937 | Box 97 \ 1 scan0101 | |
| Comparison of specifications for different vehicle chassis and body types. | 25th Nov 1937 | Box 97 \ 1 scan0102 | |
| Four alternative schemes for the Bentley 111 engine's throttle controls, requesting a cost and convenience comparison. | 30th Dec 1937 | Box 97 \ 1 scan0103 | |
| Several defects exhibited by the Bentley 111 chassis on the bump-rig. | 31th Dec 1937 | Box 97 \ 1 scan0104 | |
| Design of engine controls for the Bentley lll model, comparing them to previous designs. | 2nd Dec 1937 | Box 97 \ 1 scan0105 | |
| Instructing that details for controls be issued to the Experimental Department. | 2nd Dec 1937 | Box 97 \ 1 scan0106 | |
| Test programme for investigating wheel flutter on a B.III bumper chassis. | 5th Jan 1938 | Box 97 \ 1 scan0107 | |
| Proposed design changes and cost-saving measures for the B.50 model compared to the B.III. | 10th Jan 1938 | Box 97 \ 1 scan0108 | |
| Cover memo attaching the programme for the Bentley 111 and a rough specification for the Bentley 50. | 13th Jan 1938 | Box 97 \ 1 scan0109 | |
| Production and release programme for the Bentley lll model. | 13th Jan 1938 | Box 97 \ 1 scan0110 | |
| List of suggested major items for the 2nd Bentley III and 1st Bentley 50 car models. | 18th Jan 1938 | Box 97 \ 1 scan0111 | |
| Confirming a decision to use a B.III fully floating axle on the 1st experimental B.50, cancelling a previous specification. | 26th Jan 1938 | Box 97 \ 1 scan0112 | |
| Conference notes on design and parts for experimental models B.III and B.50. | 26th Jan 1938 | Box 97 \ 1 scan0113 | |
| Cancelling a previous specification and detailing a new decision for a B.III fully floating axle on an experimental B.50. | 26th Jan 1938 | Box 97 \ 1 scan0114 | |
| Ignition governor characteristics for the B.III No.2 unit. | 4th Feb 1938 | Box 97 \ 1 scan0115 | |
| Increasing the ground clearance for the Bentley 111 model. | 15th Feb 1938 | Box 97 \ 1 scan0116 | |
| Summary of points requiring attention on the Bentley III chassis front axle and brakes, with handwritten comments and actions. | 26th Feb 1938 | Box 97 \ 1 scan0117 | |
| List of required design modifications and issues for various vehicle chassis components. | 26th Feb 1938 | Box 97 \ 1 scan0118 | |
| List of suggested modifications and corrections for pedal and gearbox components. | 26th Feb 1938 | Box 97 \ 1 scan0119 | |
| List of technical points and suggestions regarding various vehicle mechanisms and components. | 26th Feb 1938 | Box 97 \ 1 scan0120 | |
| List of technical notes and queries regarding vehicle components like the petrol tank, radiator, and engine unit. | 26th Feb 1938 | Box 97 \ 1 scan0121 | |
| List of required modifications and part updates for crankcases, bearings, and cylinders. | 26th Feb 1938 | Box 97 \ 1 scan0122 | |
| List of technical notes and required modifications for engine components. | 26th Feb 1938 | Box 97 \ 1 scan0123 | |
| The B.III engine unit, covering production simplification, road performance, and power curve adjustments. | 22th Mar 1938 | Box 97 \ 1 scan0124 | |
| Test bed work and results for the Bentley III engine, comparing power and compression ratios with other models. | 22th Jan 1938 | Box 97 \ 1 scan0125 | |
| Technical discussion on engine performance, detonation, compression ratios, and gaskets for Bentley and Wraith models. | 22th Mar 1938 | Box 97 \ 1 scan0126 | |
| Tests and improvements to valve gear, induction systems, and timing gears. | 22th Mar 1938 | Box 97 \ 1 scan0127 | |
| Gear rattle, bearing performance after endurance testing, and exhaust system comparisons. | 22th Mar 1938 | Box 97 \ 1 scan0128 | |
| Summary report comparing the horsepower and performance of different engine silencing systems. | 22th Mar 1938 | Box 97 \ 1 scan0129 | |
| Power curve graph for the 4 1/4 Litre Bentley Series II & III engines under various exhaust conditions. | 1st Mar 1938 | Box 97 \ 1 scan0130 | |
| Graph plotting power and detonation characteristics for a Bentley III engine with varying compression ratios. | 1st Mar 1938 | Box 97 \ 1 scan0131 | |
| Graph comparing the detonation characteristics of different fuels in a Bentley III engine. | 1st Mar 1938 | Box 97 \ 1 scan0132 | |
| Graph showing power and detonation characteristics for a Bentley III engine with different compression ratios. | 1st Mar 1938 | Box 97 \ 1 scan0133 | |
| Performance comparison graph for an O.H.C. Bentley unit with different manifold and silencer configurations. | 11th Mar 1938 | Box 97 \ 1 scan0134 | |
| Performance comparison chart for an O.H.C. Bentley (B.23) engine with different manifold and silencer configurations. | 11th Mar 1938 | Box 97 \ 1 scan0135 | |
| Performance curves comparing different exhaust setups for an O.H.C. Bentley (B.23) engine. | 11th Mar 1938 | Box 97 \ 1 scan0136 | |
| Photograph of Wraith III No. 2 bigend bearings after endurance testing. | 11th Mar 1938 | Box 97 \ 1 scan0137 | |
| Photographic record of Wraith III No.2 main bearings after endurance testing. | 23th Mar 1938 | Box 97 \ 1 scan0138 | |
| Determination of the minimum tyre size for the B.50 car and conducting skid pan tests. | 23th Mar 1938 | Box 97 \ 1 scan0139 | |
| Design updates and decisions for the Bentley 111 chassis. | 29th Mar 1938 | Box 97 \ 1 scan0140 | |
| List of action points and design considerations for various vehicle components. | 29th Mar 1938 | Box 97 \ 1 scan0141 | |
| List of design points and decisions for various vehicle components including the engine unit. | 29th Mar 1938 | Box 97 \ 1 scan0142 | |
| List of points of disagreement regarding camshafts, bearings, and water connections. | 29th Mar 1938 | Box 97 \ 1 scan0143 | |
| Development and release programme for the Bentley III car. | 5th Apr 1938 | Box 97 \ 1 scan0144 | |
| Modifications for the ignition distributors on the Wraith and Bentley III models. | 12th Apr 1938 | Box 97 \ 1 scan0145 | |
| Specifications for the production of two additional B.III cars. | 26th Apr 1938 | Box 97 \ 1 scan0146 | |
| Engine specifications for two cars, including crankshaft and bearing types, and expediting chassis completion. | 26th Apr 1938 | Box 97 \ 1 scan0147 | |
| Comparison of leading dimensions between the B.111 model and a 3.5 Litre Jaguar. | 26th Apr 1938 | Box 97 \ 1 scan0148 | |
| Comparison of vehicle dimensions between model B.3 and a 3½ Litre Jaguar, proposing an increase in body width. | 26th Apr 1938 | Box 97 \ 1 scan0149 | |
| Detailed provisional specification for the second and third B.III cars. | 29th Apr 1938 | Box 97 \ 1 scan0150 | |
| Specification sheet for 2nd and 3rd series cars, listing parts under Section D. | 28th Apr 1938 | Box 97 \ 1 scan0151 | |
| Specification list for engine and electrical components, with associated notes. | 28th Apr 1938 | Box 97 \ 1 scan0152 | |
| List of engine components with reference numbers, corresponding to the B.III No.5 second engine. | 28th Apr 1938 | Box 97 \ 1 scan0153 | |
| Specification sheet detailing parts and build notes for Sections E and F of a vehicle chassis. | 28th Apr 1938 | Box 97 \ 1 scan0154 | |
| 'Section F' component list detailing parts, their numbers, and design status. | 28th Apr 1938 | Box 97 \ 1 scan0155 | |
| Specification sheet for Sections F and G, listing parts like the spare wheel carrier, clutch, gearbox, and axles. | 28th Apr 1938 | Box 97 \ 1 scan0156 | |
| Specification sheet listing modifications and details for various vehicle components. | 28th Apr 1938 | Box 97 \ 1 scan0157 | |
| With suggestions for the B.III 15,000 miles' test programme. | 4th May 1938 | Box 97 \ 1 scan0158 | |
| Requesting a spare set of levers for a torsional indicator. | 4th May 1938 | Box 97 \ 1 scan0159 | |
| Concerning the use of cast steel parts versus stampings for a B.III 15,000-mile test. | 5th May 1938 | Box 97 \ 1 scan0160 | |
| Production and testing of steel castings for the B.III suspension's 15,000-mile test. | 6th May 1938 | Box 97 \ 1 scan0161 | |
| Conference memo comparing body dimensions, specifically elbow room and rear width, between the B.III model and a 3½-litre Jaguar. | 5th May 1938 | Box 97 \ 1 scan0162 | |
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