| Description | Date | Identifier | |
| Record concerning the front engine support brackets for the Wraith III and B.III models. | 3rd Nov 1938 | Box 99 \ 1 scan0136 | |
| Note concerning front engine support brackets for the Wraith III and Bentley III models. | 4th Nov 1938 | Box 99 \ 1 scan0137 | |
| Request for a new front engine mount for the B.III bump chassis. | 15th Nov 1938 | Box 99 \ 1 scan0138 | |
| Design for a front engine mounting with increased rubber depth for the Bentley lll. | 6th Dec 1938 | Box 99 \ 1 scan0139 | |
| Material and tool costs for the Bentley V. Engine Mounting, comparing it to American cars and suggesting a less complicated design. | 20th Dec 1938 | Box 99 \ 1 scan0140 | |
| Material cost breakdown for the Bentley V. Engine Mounting. | 23th Dec 1938 | Box 99 \ 1 scan0141 | |
| Blueprints and design changes for the B.V. chassis engine rear suspension. | 23th Dec 1938 | Box 99 \ 1 scan0142 | |
| Request to prepare one set of parts for an engine rear suspension for Wraith Gear in a B.V. chassis. | 17th Jan 1939 | Box 99 \ 1 scan0143 | |
| Specifying part number GCD.1249 for future Bentley V engine rear suspensions and torque rubbers. | 22th Mar 1939 | Box 99 \ 1 scan0144 | |
| Modifications to the rear engine suspension for the Bentley V chassis. | 6th Apr 1939 | Box 99 \ 1 scan0145 | |
| Bentley V damper settings for different markets. | 20th Apr 1939 | Box 99 \ 1 scan0146 | |
| Technical memo detailing design considerations and drawings for the Bentley 111 exhaust fittings. | 9th Oct 1937 | Box 99 \ 1 scan0147 | |
| Design of an intermediate pipe for the Wraith III chassis. | 9th Oct 1937 | Box 99 \ 1 scan0148 | |
| Expressing dissatisfaction with the proposed design of the Bentley III exhaust system's front expansion box. | 13th Oct 1937 | Box 99 \ 1 scan0149 | |
| Recommendation to experimentally modify the B.III exhaust system before finalizing the drawings. | 23th Oct 1937 | Box 99 \ 1 scan0150 | |
| Revised exhaust system for the Bentley 111 to suit a new chassis frame. | 5th Nov 1937 | Box 99 \ 1 scan0151 | |
| Designs for a revised exhaust system for the Bentley 111 to suit a new chassis frame. | 6th Nov 1937 | Box 99 \ 1 scan0152 | |
| Modification to the Bentley 111 exhaust system to suit a revised chassis frame. | 11th Nov 1937 | Box 99 \ 1 scan0153 | |
| Design of the Bentley 111 exhaust system's expansion box front stays. | 17th Nov 1937 | Box 99 \ 1 scan0154 | |
| E.CD.239 layout drawing for the Bentley 111 (Dropped Frame) exhaust system. | 18th Nov 1937 | Box 99 \ 1 scan0155 | |
| Proposed modifications to the exhaust system for the Bentley 111, referencing several engineering drawings. | 25th Feb 1938 | Box 99 \ 1 scan0156 | |
| Request to produce a Bentley III built-up exhaust manifold with two downtake outlets. | 25th Mar 1938 | Box 99 \ 1 scan0157 | |
| The failure of the B.III exhaust system and the proposed redesign incorporating Jaguar systems. | 4th May 1938 | Box 99 \ 1 scan0158 | |
| The development and benefits of duplex exhaust systems for various engines. | 9th May 1938 | Box 99 \ 1 scan0159 | |
| Report comparing the performance of various exhaust system arrangements for the Bentley III unit. | 9th May 1938 | Box 99 \ 1 scan0160 | |
| Recommendation from test results to incorporate a double exhaust system and new camshaft on the B.III model. | 9th May 1938 | Box 99 \ 1 scan0161 | |
| Blueprint of an experimental duplex outlet exhaust manifold for testing on a B III unit. | 9th May 1938 | Box 99 \ 1 scan0162 | |
| Performance graph showing power loss to various exhaust systems for a 4 1/4 Litre Bentley engine. | 1st May 1938 | Box 99 \ 1 scan0163 | |
| Scheme for the Bentley 111 exhaust system, based on work from a three-port manifold. | 11th May 1938 | Box 99 \ 1 scan0164 | |
| Requesting the fabrication of parts to test dual exhaust systems on a Bentley III test bed engine. | 18th May 1938 | Box 99 \ 1 scan0165 | |
| New design for an exhaust manifold with two outlets for a Bentley 111. | 2nd Jul 1938 | Box 99 \ 1 scan0166 | |
| Modification of the Bentley 111 exhaust tail pipe to accommodate Rolls-Royce type shock dampers. | 6th Jul 1938 | Box 99 \ 1 scan0167 | |
| Instructing modifications to the exhaust system for a Bentley Car 9.B.III. | 16th Aug 1938 | Box 99 \ 1 scan0168 | |
| Request to investigate increased sideways flexibility of the exhaust system to suit flexible engine mounting. | 16th Sep 1938 | Box 99 \ 1 scan0169 | |
| Order for flexible tubing from Compoflex Ltd. and inquiring about their attachment methods. | 15th Oct 1938 | Box 99 \ 1 scan0170 | |
| Modification to add stiffening ribs to the exhaust manifold for Bentley 111 and Wraith III engines. | 28th Nov 1938 | Box 99 \ 1 scan0171 | |
| Flexibly mounted front silencer support for the Bentley 111 exhaust system. | 3rd Dec 1933 | Box 99 \ 1 scan0172 | |
| Experimental support for the exhaust front silencer on the Bentley lll model. | 19th Dec 1938 | Box 99 \ 1 scan0173 | |
| Request to manufacture 16 EB.4514 brackets for two sets of rubber mountings for exhaust suspension. | 3rd Jan 1939 | Box 99 \ 1 scan0174 | |
| Advance blueprints for Bentley 111 exhaust fittings. | 11th Jan 1939 | Box 99 \ 1 scan0175 | |
| New exhaust tail pipe suspension for B.V. and B.50 chassis models. | 16th Jan 1939 | Box 99 \ 1 scan0176 | |
| Requesting an experimental exhaust system for the Bentley V Continental sports model. | 2nd Feb 1939 | Box 99 \ 1 scan0177 | |
| Designs for the Bentley V exhaust system. | 22th Feb 1939 | Box 99 \ 1 scan0178 | |
| Instruction to design and fit exhaust systems for future Bentley V and 50 cars. | 28th Feb 1939 | Box 99 \ 1 scan0179 | |
| The design and fitment of exhaust systems for Bentley V and 50 cars. | 1st Mar 1939 | Box 99 \ 1 scan0180 | |
| Proposal for a simplified, cost-reduced exhaust silencer support for the Bentley V. | 4th Mar 1939 | Box 99 \ 1 scan0181 | |
| Requesting the experimental fitting of a new exhaust system suspension on a Bentley V chassis. | 15th Mar 1939 | Box 99 \ 1 scan0182 | |
| Cost breakdown for the 'B' series production Wraith B.V. exhaust system. | 22th Mar 1939 | Box 99 \ 1 scan0183 | |
| Instructing the fitting of new bolts, distance pieces, and spherical washers to the exhaust system on Wraith & Bentley experimental cars. | 25th Apr 1939 | Box 99 \ 1 scan0184 | |
| Confirming the checks on the Bentley V exhaust system drawings, authorizing the start of production. | 26th Apr 1939 | Box 99 \ 1 scan0185 | |
| Requesting the fitting of twin exhaust systems to specific Bentley cars. | 7th Oct 1939 | Box 99 \ 1 scan0186 | |
| Weight comparison between the previous and new exhaust systems for the 11BV model, with a proposal for further weight reduction. | 9th May 1940 | Box 99 \ 1 scan0187 | |
| Resume of an interview with Messrs. Rubery Owen concerning the design of the Bentley III Frame and cross. | 16th Dec 1936 | Box 99 \ 2 scan0001 | |
| Manufacturing process for a vehicle's frame cross, including pressing and welding considerations. | 16th Dec 1936 | Box 99 \ 2 scan0002 | |
| Design and manufacturing specifications for the Bentley III frame side members and general chassis layout. | 6th Jan 1937 | Box 99 \ 2 scan0003 | |
| Letter to Rubery-Owen & Co. regarding the design of a proposed experimental frame, referencing drawing LoC.5458. | 2nd Feb 1937 | Box 99 \ 2 scan0004 | |
| Letter to Messrs. Rubery Owen concerning prints for an experimental chassis frame. | 4th Feb 1937 | Box 99 \ 2 scan0005 | |
| Secret letter to Messrs. Rubery Owen requesting comments on prints for experimental chassis frames. | 4th Feb 1937 | Box 99 \ 2 scan0006 | |
| Letter to Rubery-Owen & Co. regarding a modified experimental frame design, corresponding in principle to the Hillman Minx. | 2nd Feb 1937 | Box 99 \ 2 scan0007 | |
| Modifications to the Bentley III frame and reverting to the Hillman Minx section. | 2nd Feb 1937 | Box 99 \ 2 scan0008 | |
| Design, construction, and materials for the Bentley III Frame Cross. | 2nd Feb 1937 | Box 99 \ 2 scan0009 | |
| Modifications to the Bentley III frame and the re-issue of drawing LeC.5456. | 2nd Feb 1937 | Box 99 \ 2 scan0010 | |
| Plans, construction, and welding specifications for the Bentley III frame cross. | 2nd Feb 1937 | Box 99 \ 2 scan0011 | |
| Letter to Park Ward & Co. confirming instructions and providing drawings for building a dummy chassis frame for a short wheelbase Bentley. | 16th Feb 1937 | Box 99 \ 2 scan0012 | |
| Letter regarding information for manufacturing a bonnet, radiator, wings, and a four-door body, and requesting an update on a dummy chassis drawing. | 16th Feb 1937 | Box 99 \ 2 scan0013 | |
| Feedback from Rubery Owen on the design of the Bentley III chassis frame. | 3rd Mar 1937 | Box 99 \ 2 scan0014 | |
| Proposed frame for the Bentley III suitable for torsion bar suspension, and a modification to the Wraith III frame. | 16th Apr 1937 | Box 99 \ 2 scan0015 | |
| Letter to Mr. Manning of Briggs Motor Bodies Ltd. to arrange a meeting. | 7th Jun 1937 | Box 99 \ 2 scan0016 | |
| Letter from Briggs Motor Bodies Limited to W. A. Robotham confirming arrangements for a meeting. | 8th Jun 1937 | Box 99 \ 2 scan0017 | |
| Proposing a visit to Briggs Motor Bodies Ltd. | 9th Jun 1937 | Box 99 \ 2 scan0018 | |
| Programme and timeline for the Wraith model, including testing and preparation for the 1938 Motor Show. | 9th Jun 1937 | Box 99 \ 2 scan0019 | |
| Letter to N.H. Manning of Briggs Motor Bodies Limited, confirming attendance at Dagenham. | 9th Jun 1937 | Box 99 \ 2 scan0020 | |
| Requesting the arrangement of a driver and car for a visit to Dagenham. | 9th Jun 1937 | Box 99 \ 2 scan0021 | |
| The frame side members for the Bentley III, including specifications and potential interchangeability with the Pheonix model. | 24th Jun 1937 | Box 99 \ 2 scan0022 | |
| The modification of the Bentley III frame side members. | 3rd Jul 1937 | Box 99 \ 2 scan0023 | |
| Construction of the frame cross for the Bentley III, including riveting and welding methods. | 31th Jul 1937 | Box 99 \ 2 scan0024 | |
| Construction of the Bentley III frame's second crossmember and the proposed addition of arc welds. | 7th Jul 1937 | Box 99 \ 2 scan0025 | |
| Letter arranging a meeting with N.H. Manning of Briggs Motor Bodies Ltd. to discuss frame drawings. | 9th Jul 1937 | Box 99 \ 2 scan0026 | |
| Letter to The Projectile & Engineering Co. Ltd. arranging a meeting to discuss further frame drawings. | 9th Jul 1937 | Box 99 \ 2 scan0027 | |
| Letter from The Projectile & Engineering Company to the Experimental Department enclosing a drawing with suggestions. | 14th Jul 1937 | Box 99 \ 2 scan0028 | |
| Secret memo regarding potential modifications to the Bentley III frame. | 14th Jul 1937 | Box 99 \ 2 scan0029 | |
| Letter to Briggs Bodies Ltd. regarding detail drawings for producing frame and tool cost figures. | 10th Jul 1937 | Box 99 \ 2 scan0030 | |
| Letter to The Projectile & Engineering Company enclosing frame drawings for an estimate. | 26th Jul 1937 | Box 99 \ 2 scan0031 | |
| Letter from The Projectile & Engineering Company regarding a list of received drawings and a request for frame cost. | 26th Jul 1937 | Box 99 \ 2 scan0032 | |
| Page 2 of a letter from The Projectile & Engineering Co Ltd requesting a print of a complete frame assembly. | 26th Jul 1937 | Box 99 \ 2 scan0033 | |
| Letter from The Projectile & Engineering Co. Ltd acknowledging receipt of drawings to prepare an estimate for 1,000 frames. | 27th Jul 1937 | Box 99 \ 2 scan0034 | |
| Stop-work notice for specific Bentley III chassis frame gusset parts due to a foul condition with the oil pump. | 29th Jul 1937 | Box 99 \ 2 scan0035 | |
| Letter chasing a quotation for a frame from Briggs Motor Bodies, Ltd. | 2nd Aug 1937 | Box 99 \ 2 scan0036 | |
| Letter to The Projectile & Engineering Co. Ltd. requesting cost figures for a frame. | 2nd Aug 1937 | Box 99 \ 2 scan0037 | |
| Forwarding blueprints for replacement frame gussets on a Bentley III Chassis. | 14th Aug 1937 | Box 99 \ 2 scan0038 | |
| Letter to Projectile & Engineering Co. Ltd. querying a high quotation for 1000 frames and requesting a completion date for torque arms. | 18th Aug 1937 | Box 99 \ 2 scan0039 | |
| Letter to Briggs Motor Bodies Ltd. discussing a quotation for frames, including design drawings, tooling costs, and material specifications. | 18th Aug 1937 | Box 99 \ 2 scan0040 | |
| The concluding page of a letter arranging a visit to discuss various points. | 19th Aug 1937 | Box 99 \ 2 scan0041 | |
| Letter from a contractor regarding the high price of chassis frames and the dispatch of torque arms. | 19th Aug 1937 | Box 99 \ 2 scan0042 | |
| Proposed modifications and economies for the Bentley 111 frame. | 9th Sep 1937 | Box 99 \ 2 scan0043 | |
| Modifying the steering tube hole and replacing rivets with welding for improved frame stiffness. | 1st Sep 1937 | Box 99 \ 2 scan0044 | |
| Record of the design reasons for the construction of the Bentley 111 front end frame, comparing it to a Packard suspension. | 2nd Sep 1937 | Box 99 \ 2 scan0045 | |
| Frame design improvements, referencing Buick and Packard frames. | 3rd Sep 1937 | Box 99 \ 2 scan0046 | |
| Letter to Briggs Motor Bodies Ltd. to arrange a meeting to discuss a quotation for 1000 frames. | 3rd Sep 1937 | Box 99 \ 2 scan0047 | |
| Letter to Briggs Motor Bodies Limited confirming a conversation about the supply of chassis steel and requesting quotations. | 7th Sep 1937 | Box 99 \ 2 scan0048 | |
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