| Description | Date | Identifier | |
| Letter from Borg & Beck requesting feedback on the performance of the 11.Al-G clutch. | 15th Jan 1935 | Box 129 \ 2 scan0011 | |
| Letter to The Borg & Beck Company Ltd. regarding the satisfactory testing of an 11' clutch. | 18th Jan 1935 | Box 129 \ 2 scan0012 | |
| Letter to supplier Borg & Beck Co. Ltd. with questions about the fitting, balancing, and performance of clutches following tests. | 22th Jan 1935 | Box 129 \ 2 scan0013 | |
| Letter from Borg & Beck concerning clutch flywheel spigotting and bolt hole dimensions. | 25th Jan 1935 | Box 129 \ 2 scan0014 | |
| Letter from Borg & Beck Company Limited regarding clutch unit balancing, potential issues with ridges, and associated costs. | 25th Jan 1935 | Box 129 \ 2 scan0015 | |
| Letter to Borg & Beck Ltd. regarding the adaptation of their 10' clutch to a standard Bentley simple disc flywheel. | 11th Feb 1935 | Box 129 \ 2 scan0016 | |
| Letter from clutch manufacturer Borg & Beck regarding modifications to the clutch arrangement and requesting further drawings. | 12th Feb 1935 | Box 129 \ 2 scan0017 | |
| Letter to The Borg & Beck Company Ltd. regarding drawings and clarification on a throw-out mechanism. | 13th Feb 1935 | Box 129 \ 2 scan0018 | |
| Letter from Borg & Beck Company regarding a proposed layout, confirming they will proceed and may require further drawings. | 15th Feb 1935 | Box 129 \ 2 scan0019 | |
| Advice note for the dispatch of one rigid type driven plate, less hub. | 19th Feb 1935 | Box 129 \ 2 scan0020 | |
| Letter from clutch manufacturers Borg & Beck regarding a proposed clutch application and a follow-up meeting. | 22th Feb 1935 | Box 129 \ 2 scan0021 | |
| Letter to Messrs. Borg & Beck Ltd. proposing new dates for a meeting. | 23th Feb 1935 | Box 129 \ 2 scan0022 | |
| Letter from Borg & Beck regarding clutch proposals for a 3.5-litre Bentley chassis and a 6-cylinder engine. | 26th Feb 1935 | Box 129 \ 2 scan0023 | |
| Car clutches, proposing to standardize on Borg & Beck parts instead of developing them in-house. | 27th Feb 1935 | Box 129 \ 2 scan0024 | |
| Letter to Borg & Beck Ltd. regarding the incorporation and testing of an 11' clutch design. | 27th Feb 1935 | Box 129 \ 2 scan0025 | |
| Endurance test report for a Borg & Beck clutch fitted to a Buick car. | 5th Mar 1935 | Box 129 \ 2 scan0026 | |
| Letter from clutch manufacturers Borg & Beck regarding installation drawings for a proposed clutch application. | 6th Mar 1935 | Box 129 \ 2 scan0027 | |
| Letter from Borg & Beck Company Ltd. regarding the installation particulars of a proposed 10.A3 clutch and flywheel/crankshaft balancing. | 8th Mar 1935 | Box 129 \ 2 scan0028 | |
| Improvement of clutches and comparing different designs. | 11th May 1935 | Box 129 \ 2 scan0029 | |
| Modifications to the crankshaft, bearings, and clutch to address flywheel flutter on Spectre and Wraith models. | 11th Mar 1935 | Box 129 \ 2 scan0030 | |
| Letter from Borg & Beck Company Ltd. regarding a proposed 10.A3 clutch application for a Rolls-Bentley. | 26th Mar 1935 | Box 129 \ 2 scan0031 | |
| The weight of the Inertia Ring for a 10' Borg & Beck clutch. | 28th Mar 1935 | Box 129 \ 2 scan0032 | |
| Application of a Borg and Beck clutch to a Bentley with a narrow pin crankshaft. | 30th Mar 1935 | Box 129 \ 2 scan0033 | |
| Letter from Borg & Beck Company Ltd. confirming a meeting appointment with Mr. Grylls. | 3rd Apr 1935 | Box 129 \ 2 scan0034 | |
| Reported failures of rivets on the driven member of a Borg & Beck clutch, requesting a design strength comparison. | 13th Apr 1935 | Box 129 \ 2 scan0035 | |
| Letter from Borg & Beck Company Ltd discussing proposed clutch applications and material specifications. | 8th Apr 1935 | Box 129 \ 2 scan0036 | |
| Letter from Borg & Beck Company Limited regarding clutch and flywheel design considerations. | 8th Apr 1935 | Box 129 \ 2 scan0037 | |
| Potential failures of a Borg & Beck clutch and a request to ensure the company's own design is stronger. | 13th Apr 1935 | Box 129 \ 2 scan0038 | |
| Borg and Beck clutch for a Bentley fouling the front brake compensating shaft, with a suggested modification. | 8th May 1935 | Box 129 \ 2 scan0039 | |
| Letter regarding an order for two 10.A3 clutches, discussing the supply of test plates and requesting completion of a questionnaire. | 9th May 1935 | Box 129 \ 2 scan0040 | |
| Letter from Borg & Beck Company Limited regarding the supply of clutch and gearbox components. | 9th May 1935 | Box 129 \ 2 scan0041 | |
| Letter from Borg & Beck clarifying clutch assembly specifications and drawings for order 82959. | 10th May 1935 | Box 129 \ 2 scan0042 | |
| Returning a data sheet for two ordered Borg & Beck clutches. | 11th May 1935 | Box 129 \ 2 scan0043 | |
| Letter from Borg & Beck Company confirming the details for an order of two sample 10.A3 clutches. | 13th May 1935 | Box 129 \ 2 scan0044 | |
| Letter from clutch manufacturer Borg & Beck regarding order number 82959 and a 'Bentley' application questionnaire. | 15th May 1935 | Box 129 \ 2 scan0045 | |
| Specification and recommendation sheet for a Borg & Beck clutch system for a Bentley 3 1/2 litre engine. | 15th May 1935 | Box 129 \ 2 scan0046 | |
| Letter from Borg & Beck Company Ltd. concerning the development of a larger series clutch and a clutch servo. | 30th May 1935 | Box 129 \ 2 scan0047 | |
| Letter from The Rover Company discussing various clutch centre designs. | 3rd Jun 1935 | Box 129 \ 2 scan0048 | |
| Letter to Borg & Beck Company Ltd regarding a visit to inspect a lightened clutch assembly and the supply of Oilite Bushes. | 4th Jun 1935 | Box 129 \ 2 scan0049 | |
| Letter from Roper & Wreaks Ltd. regarding a flexible centre clutch plate they manufacture. | 3rd Jun 1935 | Box 129 \ 2 scan0050 | |
| Letter to Messrs. Roper & Wreaks Ltd declining an offer regarding their clutch centres. | 7th Jun 1935 | Box 129 \ 2 scan0051 | |
| Visit to the Borg & Beck factory to test two new clutch operation systems. | 8th Jun 1935 | Box 129 \ 2 scan0052 | |
| Test drive of a car with an automatic clutch disengagement system, noting its performance and suggesting further investigation. | 8th Jun 1935 | Box 129 \ 2 scan0053 | |
| Letter from Borg & Beck confirming arrangements for a mechanical servo to lighten clutch pedal operation. | 12th Jun 1935 | Box 129 \ 2 scan0054 | |
| Letter from clutch manufacturer Borg & Beck regarding flywheel compatibility and potential component fouling issues. | 14th Jun 1935 | Box 129 \ 2 scan0055 | |
| Installation drawing for a 10 inch A3 type clutch assembly. | 14th Jun 1935 | Box 129 \ 2 scan0056 | |
| Installation drawing for an 11-inch A3 clutch from Borg and Beck. | 14th Jun 1938 | Box 129 \ 2 scan0057 | |
| Letter from Borg & Beck Company confirming a change to an order for clutch parts following a telephone conversation. | 18th Jun 1935 | Box 129 \ 2 scan0058 | |
| Letter to Borg & Beck Ltd. concerning the testing and arrangement of a new clutch system, including pedal effort specifications. | 19th Jun 1935 | Box 129 \ 2 scan0059 | |
| Letter from clutch manufacturer Borg & Beck discussing mechanical servo application, a demonstration of an automatic clutch, and tests on a Bentley chassis. | 24th Jun 1935 | Box 129 \ 2 scan0060 | |
| Letter from Borg & Beck concerning a proposed mechanical servo for a clutch pedal on a 40/50 HP model. | 5th Jul 1935 | Box 129 \ 2 scan0061 | |
| Drawing of a clutch pedal servo mechanism for the Phantom II. | 3rd Jul 1935 | Box 129 \ 2 scan0062 | |
| Hand-drawn graph plotting clutch pedal effort against pedal movement for a Phantom II vehicle. | 28th Aug 1935 | Box 129 \ 2 scan0063 | |
| Short typed message, likely a telegram, requesting to postpone a visit. | 28th Aug 1935 | Box 129 \ 2 scan0064 | |
| Request for nine additional levers (Drawing No. Hs.2081) for Borg & Beck clutches to be fitted to experimental and sales cars. | 12th Sep 1935 | Box 129 \ 2 scan0065 | |
| Letter from a clutch manufacturer proposing to supply a newer, improved ventilated clutch model in place of an ordered, but now obsolescent, type. | 20th Sep 1935 | Box 129 \ 2 scan0066 | |
| The concluding page of a letter from Borg & Beck Company Limited requesting a meeting, with an attached sticker for the Motor Exhibition at Olympia. | 20th Sep 1935 | Box 129 \ 2 scan0067 | |
| Installation drawing for a 10 A6. Clutch from Borg and Beck Co. Ltd. | 19th Sep 1935 | Box 129 \ 2 scan0068 | |
| Installation drawing for a 10 inch A3 type clutch assembly. | 19th Sep 1935 | Box 129 \ 2 scan0069 | |
| Letter to The Borg & Beck Co. Ltd. regarding an order and testing of clutches. | 23th Sep 1935 | Box 129 \ 2 scan0070 | |
| Letter to The Borg & Beck Company Ltd. regarding drawings and supply of parts for an experimental Phantom clutch. | 27th Sep 1935 | Box 129 \ 2 scan0071 | |
| Requesting a change in clutch specification from 10' to 11' for the 20/25 chassis. | 27th Sep 1935 | Box 129 \ 2 scan0072 | |
| Letter from Borg & Beck Company Ltd. discussing the potential supply of patented clutch parts or complete clutches. | 30th Sep 1935 | Box 129 \ 2 scan0073 | |
| Letter to Borg & Beck Ltd. discussing the design and specifications for a clutch driven member assembly. | 2nd Oct 1935 | Box 129 \ 2 scan0074 | |
| 10' Borg & Beck Clutch on a Large Bore Bentley. | 3rd Oct 1935 | Box 129 \ 2 scan0075 | |
| The flywheel teeth count for large bore units fitted with Borg & Beck clutches. | 3rd Oct 1935 | Box 129 \ 2 scan0076 | |
| Letter from a clutch manufacturer regarding the supply of incorrect driven plates and arranging for their replacement. | 3rd Oct 1935 | Box 129 \ 2 scan0077 | |
| The return of three Borg & Beck clutches with incorrect driven plates. | 4th Oct 1935 | Box 129 \ 2 scan0078 | |
| Cover memo attaching a reply from Borg & Beck Co. concerning their clutches. | 4th Oct 1935 | Box 129 \ 2 scan0079 | |
| Confirming supply and requesting an order for Borg & Beck clutches. | 5th Oct 1935 | Box 129 \ 2 scan0080 | |
| Letter to Borg & Beck Ltd. requesting Phantom clutch plates for testing and urging completion of a separate order. | 8th Oct 1935 | Box 129 \ 2 scan0081 | |
| Letter from Borg & Beck Company Ltd concerning the delivery of clutches for a Phantom chassis. | 12th Oct 1935 | Box 129 \ 2 scan0082 | |
| Letter from Borg & Beck about a proposed clutch cushion disc for a Phantom chassis and the performance of sample clutches. | 12th Oct 1935 | Box 129 \ 2 scan0083 | |
| Query regarding the despatch of 11' clutches to Borganbeck, Leamington Spa. | 21th Oct 1935 | Box 129 \ 2 scan0084 | |
| Letter to Messrs. Borg & Beck Ltd. concerning invoicing for a special clutch plate. | 29th Oct 1935 | Box 129 \ 2 scan0085 | |
| Letter from Borg & Beck regarding the completion and delivery of a special clutch plate for a Phantom II car. | 31th Oct 1935 | Box 129 \ 2 scan0086 | |
| Installation drawing for a 10 A3 clutch. | 1st Nov 1935 | Box 129 \ 2 scan0087 | |
| Advice note from Borg & Beck Co., Ltd. for a special driven plate with disc and woven facings. | 1st Nov 1935 | Box 129 \ 2 scan0088 | |
| Specifications for the Borg & Beck Clutch. | 1st Nov 1935 | Box 129 \ 2 scan0089 | |
| Advice note for a special driven plate from Borg & Beck Co., Ltd. | 1st Nov 1935 | Box 129 \ 2 scan0090 | |
| Installation drawing for an 11-inch A8 clutch. | 2nd Oct 1935 | Box 129 \ 2 scan0091 | |
| Message to Borg & Beck in Leamington Spa regarding an urgent order for a 10' ventilated clutch. | 5th Nov 1935 | Box 129 \ 2 scan0092 | |
| Order for a 10' Borg & Beck ventilated clutch. | 5th Nov 1935 | Box 129 \ 2 scan0093 | |
| Letter to Borg & Beck Ltd. requesting a 10 inch Ventilated Clutch with F.P.1. facings. | 5th Nov 1935 | Box 129 \ 2 scan0094 | |
| Letter from Roper & Wreaks Ltd. regarding the fitting of DON-FLEX clutch discs and enclosing a fabric sample. | 5th Nov 1935 | Box 129 \ 2 scan0095 | |
| Page two of a letter from ROPER & WREAKS LTD. regarding DON-FLEX Discs for buses. | 6th Nov 1935 | Box 129 \ 2 scan0096 | |
| Cost comparison between the present Bentley clutch and a Borg & Beck clutch arrangement, outlining potential savings. | 6th Nov 1935 | Box 129 \ 2 scan0097 | |
| Letter from a clutch manufacturer confirming receipt of a telephonic request for one 10.A6-G ventilated type clutch. | 6th Nov 1935 | Box 129 \ 2 scan0098 | |
| Request to create a new pedal spring arrangement for the Borg & Beck Clutch, referencing a previous design. | 7th Nov 1935 | Box 129 \ 2 scan0099 | |
| Clutch slip tests performed on Porlock Hill using a Borg & Beck clutch. | 11th Nov 1935 | Box 129 \ 2 scan0100 | |
| Request to replace a burnt-out clutch on car 1-B-IV with one from car B-16. | 11th Nov 1935 | Box 129 \ 2 scan0101 | |
| Letter to The Borg & Beck Clutch Co. Ltd. requesting particulars on a semi-centrifugal clutch found on a Packard car. | 13th Nov 1935 | Box 129 \ 2 scan0102 | |
| Letter from Roper & Wreaks Ltd. and the forwarding of Bentley and Phantom III clutch blueprints. | 13th Nov 1935 | Box 129 \ 2 scan0103 | |
| Letter from Roper & Wreaks Ltd. regarding blueprints for flexible centre clutch components. | 7th May 1935 | Box 129 \ 2 scan0104 | |
| Drawing of a complete flexible centre clutch plate with a deflection test table. | 7th May 1935 | Box 129 \ 2 scan0105 | |
| Blueprint of the 'R & W' 9 inch clutch with flexible centre. | 2nd Sep 1935 | Box 129 \ 2 scan0106 | |
| Borg & Beck clutches specification and recommendation sheet for a vehicle with a Bentley engine. | 4th Nov 1935 | Box 129 \ 2 scan0107 | |
| Specification and recommendation sheet for a clutch system from Borg & Beck. | 4th Nov 1935 | Box 129 \ 2 scan0108 | |
| Payment authorization for a Borg & Beck invoice for two types of clutches. | 13th Nov 1935 | Box 129 \ 2 scan0109 | |
| Letter from Borg & Beck acknowledging an enquiry about a semi-centrifugal clutch for a Packard application. | 16th Nov 1935 | Box 129 \ 2 scan0110 | |
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