| Description | Date | Identifier | |
| Request to place an official order with Messrs. Borg & Beck for two types of clutches. | 18th Nov 1935 | Box 129 \ 2 scan0111 | |
| Adopting and testing a Borg & Beck clutch for the Big Bore Bentley. | 19th Nov 1935 | Box 129 \ 2 scan0112 | |
| Summary of clutch durability tests and a proposal to fit a new clutch to the big bore 20/25 chassis. | 19th Nov 1935 | Box 129 \ 2 scan0113 | |
| The performance and testing of Borg & Beck clutches on Bentley cars. | 16th Aug 1935 | Box 129 \ 2 scan0114 | |
| Request to Borg & Beck Ltd for the finger ratio of the 10' and 11' clutches they supplied. | 19th Nov 1935 | Box 129 \ 2 scan0115 | |
| Comparison of clutch pedal ratios for various Bentley and Borg & Beck clutch systems. | 19th Nov 1935 | Box 129 \ 2 scan0116 | |
| Specification sheet detailing wear adjustments for two different types of Bentley clutches. | 20th Nov 1935 | Box 129 \ 2 scan0117 | |
| Letter from clutch manufacturer Borg & Beck regarding clutch specifications. | 20th Nov 1935 | Box 129 \ 2 scan0118 | |
| Letter to The Borg & Beck Company Ltd. regarding drawing SK.30604/2 and trunnion movement. | 21th Nov 1935 | Box 129 \ 2 scan0119 | |
| Letter from a clutch manufacturer advising that the semi-centrifugal clutch fitted to the Packard car is of the Long type. | 21th Nov 1935 | Box 129 \ 2 scan0120 | |
| Letter from a clutch manufacturer regarding wear allowance and adjustment for a clutch mechanism. | 22th Nov 1935 | Box 129 \ 2 scan0121 | |
| Wear adjustment limits of the Borg & Beck clutch on a Bentley model. | 25th Nov 1935 | Box 129 \ 2 scan0122 | |
| Rubber-faced stop for a Borg and Beck clutch pedal on a Bentley. | 22th Nov 1935 | Box 129 \ 2 scan0123 | |
| Bentley clutch tests conducted on Porlock Hill, comparing wear between R.R. and Borg & Beck clutch types. | 25th Nov 1935 | Box 129 \ 2 scan0124 | |
| Recurring clutch failures on Bentley cars and the potential solution of fitting a Borg & Beck clutch. | 25th Nov 1935 | Box 129 \ 2 scan0125 | |
| Advice note from Borg & Beck Co., Ltd. for a dispatched Special Driven Plate. | 27th Nov 1935 | Box 129 \ 2 scan0126 | |
| Cost breakdown for Ph.III Clutch centre plates for experimental and production orders. | 2nd Dec 1935 | Box 129 \ 2 scan0127 | |
| Requesting the manufacture of a more suitable pedal spring for a Borg & Beck clutch as the current one is too highly loaded. | 3rd Dec 1935 | Box 129 \ 2 scan0128 | |
| Invoices from Borg & Beck Co. Ltd for special driven plates and tools. | 5th Dec 1935 | Box 129 \ 2 scan0129 | |
| Request to place an order with Borg & Beck Co. Ltd. for two special clutch driven plates. | 6th Dec 1935 | Box 129 \ 2 scan0130 | |
| Letter to Borg & Beck Ltd. about modifications to a Phantom clutch centre plate, spring loading, and pedal pressure. | 7th Dec 1935 | Box 129 \ 2 scan0131 | |
| Clutch failures on Bentley cars, comparing the cost and features of Borg & Beck versus Rolls-Royce clutches. | 7th Dec 1935 | Box 129 \ 2 scan0132 | |
| Correspondence from Borg & Beck Company Ltd. regarding a driven plate and pressure plate spring load. | 10th Dec 1935 | Box 129 \ 2 scan0133 | |
| Advice note from Borg & Beck Co., Ltd. for a returned driven plate assembly. | 11th Dec 1935 | Box 129 \ 2 scan0134 | |
| Letter from Borg & Beck Company Ltd. regarding a 13.5 inch driven disc assembly and its testing. | 12th Dec 1935 | Box 129 \ 2 scan0135 | |
| Follow-up letter from Borg & Beck Company regarding a plate with moulded type friction facings and associated trials. | 12th Dec 1935 | Box 129 \ 2 scan0136 | |
| Letter to Borg & Beck Ltd. requesting a specific Bentley clutch and reporting a fault with a Phantom centre plate. | 13th Dec 1935 | Box 129 \ 2 scan0137 | |
| Request to place an official order for a 10' ventilated clutch from Messrs. Borg & Beck. | 13th Dec 1935 | Box 129 \ 2 scan0138 | |
| Letter from Borg & Beck Company Ltd. confirming the despatch of a 10' Spring Type Driven Plate Assembly. | 14th Dec 1935 | Box 129 \ 2 scan0139 | |
| Letter from clutch manufacturer Borg & Beck regarding clutch supply and troubleshooting for a Phantom III car. | 14th Dec 1935 | Box 129 \ 2 scan0140 | |
| Advice note from Borg & Beck Co., Ltd. for a Driven Plate Assembly. | 14th Dec 1935 | Box 129 \ 2 scan0141 | |
| Advice note from Borg & Beck Co., Ltd. for a dispatched driven plate assembly. | 14th Dec 1935 | Box 129 \ 2 scan0142 | |
| To Roy requesting a covering order for a Bentley Clutch centre plate ordered from Borg & Beck. | 14th Dec 1935 | Box 129 \ 2 scan0143 | |
| Requesting clarification on the specific make of clutch mentioned in a previous communication. | 16th Dec 1935 | Box 129 \ 2 scan0144 | |
| Confirming receipt and attachment of a letter and blueprint from Messrs. Roper & Wreaks Ltd. | 16th Dec 1935 | Box 129 \ 2 scan0145 | |
| Letter from Roper & Wreaks Ltd discussing a clutch proposal for a 3½ L. Bentley. | 14th Dec 1935 | Box 129 \ 2 scan0146 | |
| Preliminary layout of a 'R&W' 10 inch clutch for a 3 1/2 Litre Bentley. | 9th Dec 1935 | Box 129 \ 2 scan0147 | |
| Installation drawing for clutch type 11A6. | 3rd Oct 1936 | Box 129 \ 2 scan0148 | |
| Letter from Borg & Beck regarding the production of a special 13 1/2 inch plate for a Phantom application. | 17th Dec 1935 | Box 129 \ 2 scan0149 | |
| Photograph of a fractured Borg & Beck clutch pressure plate after a test. | 1st Dec 1935 | Box 129 \ 2 scan0150 | |
| Clutch shudder caused by oil getting onto the fabrics of Borg & Beck clutches. | 17th Dec 1935 | Box 129 \ 2 scan0151 | |
| Letter from Borg & Beck regarding the 11.A6 clutch application for a 25-HP vehicle, referencing drawings and previous orders. | 17th Dec 1935 | Box 129 \ 2 scan0152 | |
| Recommendations for the fitting of an 11' Borg & Beck clutch to a 20/25 model, detailing required modifications and parts. | 17th Dec 1935 | Box 129 \ 2 scan0153 | |
| Instructing an order to be placed with Borg & Beck for a Phantom driven plate and to reline another plate. | 17th Dec 1935 | Box 129 \ 2 scan0154 | |
| Advice note from Borg & Beck Co., Ltd. regarding the dispatch of clutch components. | 18th Dec 1935 | Box 129 \ 2 scan0155 | |
| Official order for 20/25 HP clutches. | 18th Dec 1935 | Box 129 \ 2 scan0156 | |
| Letter to Borg & Beck Ltd. concerning clutch applications and production. | 18th Dec 1935 | Box 129 \ 2 scan0157 | |
| Borg & Beck clutches specification sheet for a vehicle. | 19th Dec 1935 | Box 129 \ 2 scan0158 | |
| Clutch suppliers Borg & Beck and Long, and a licensing agreement for Long products. | 19th Dec 1935 | Box 129 \ 2 scan0159 | |
| Letter from Borg & Beck Company Ltd discussing the application of an 11' clutch for the 20/25 HP chassis. | 19th Dec 1935 | Box 129 \ 2 scan0160 | |
| Letter from Borg & Beck Company Limited regarding clutch balancing, flywheel locating pegs, and production timelines. | 19th Dec 1935 | Box 129 \ 2 scan0161 | |
| Clutch specification and recommendation sheet for the 20/25HP model. | 19th Dec 1935 | Box 129 \ 2 scan0162 | |
| Pedal recommendations for a Borg & Beck Clutch for the 20/25 HP application. | 19th Dec 1935 | Box 129 \ 2 scan0163 | |
| Letter to Borg & Beck Ltd. concerning clutch installation, balancing, and material specifications. | 21th Dec 1935 | Box 129 \ 2 scan0164 | |
| Letter from Borg & Beck Company Ltd. regarding a 13 1/8' driven plate assembly. | 30th Dec 1935 | Box 129 \ 2 scan0165 | |
| Spring chart for thrust and damper components. | 31th Oct 1935 | Box 129 \ 2 scan0166 | |
| Two invoices from Borg & Beck Co. Ltd. for payment approval. | 31th Dec 1935 | Box 129 \ 2 scan0167 | |
| Letter from clutch manufacturer Borg & Beck regarding arrangements for an 11' clutch modification on the 25-HP model. | 1st Jan 1936 | Box 129 \ 3 scan0001 | |
| Requesting to book a spring driven clutch plate, collected from Borg & Beck's works, into the workshop. | 1st Jan 1936 | Box 129 \ 3 scan0002 | |
| Advice note from Borg & Beck Co., Ltd. for a special 13 3/8' driven plate. | 1st Jan 1936 | Box 129 \ 3 scan0003 | |
| Advice note from Borg & Beck Co., Ltd. for a special 13 1/4' driven plate. | 1st Jan 1936 | Box 129 \ 3 scan0004 | |
| Request to determine the Brinell tensile strength and composition of a bit of a clutch pressure plate. | 1st Jan 1936 | Box 129 \ 3 scan0005 | |
| To book in a spring driven clutch plate collected from Borg & Beck's works. | 1st Jan 1936 | Box 129 \ 3 scan0006 | |
| Performance of the 11' Borg & Beck clutch on the 20/25 HP model and recommending against its immediate production. | 2nd Jan 1936 | Box 129 \ 3 scan0007 | |
| Order for Bentley clutches and modifications to a driven plate. | 2nd Jan 1936 | Box 129 \ 3 scan0008 | |
| Confirming that a driven plate assembly and clutch parts have been ordered. | 3rd Jan 1936 | Box 129 \ 3 scan0009 | |
| Letter to Messrs. Borg & Beck Ltd. confirming modifications to clutches, including balancing pressure plates and replacing springs. | 3rd Jan 1936 | Box 129 \ 3 scan0010 | |
| Endurance testing and spring specifications for the 10' Borg & Beck clutch on a Bentley. | 3rd Jan 1936 | Box 129 \ 3 scan0011 | |
| Letter from Borg & Beck Company Ltd. confirming the fabrication of specific clutch assemblies and driven plates. | 3rd Jan 1936 | Box 129 \ 3 scan0012 | |
| Letter from Borg & Beck Company Limited regarding the urgent dispatch of two outstanding 11' clutch assemblies. | 3rd Jan 1936 | Box 129 \ 3 scan0013 | |
| Official order to modify a Phantom III clutch driven plate. | 4th Jan 1936 | Box 129 \ 3 scan0014 | |
| Letter to Messrs Borg & Beck, Ltd. regarding the modification of Ph.III plates. | 4th Jan 1936 | Box 129 \ 3 scan0015 | |
| Letter from Borg & Beck Company Ltd regarding the balancing and production of clutches. | 4th Jan 1936 | Box 129 \ 3 scan0016 | |
| Experiments on Phantom III clutches, comparing various plate designs and materials. | 1st Jan 1936 | Box 129 \ 3 scan0017 | |
| The performance of a Borg & Beck clutch plate, detailing issues and proposing modifications. | 5th Jan 1936 | Box 129 \ 3 scan0018 | |
| Letter from a clutch manufacturer regarding the supply, modification, and dispatch of various clutch plates and assemblies. | 6th Jan 1936 | Box 129 \ 3 scan0019 | |
| Suggesting an alternative pull-off spring for the Borg & Beck clutch on a Bentley pedal. | 6th Jan 1936 | Box 129 \ 3 scan0020 | |
| Request to Leonard Williams & Co. Ltd. for a 12' diameter Long clutch from a 12-cylinder Packard for experimental purposes. | 6th Jan 1936 | Box 129 \ 3 scan0021 | |
| Borg & Beck clutch failures for Bentley during endurance testing. | 6th Jan 1936 | Box 129 \ 3 scan0022 | |
| The development and testing of Borg & Beck clutches, including balancing methods and spring performance. | 6th Jan 1936 | Box 129 \ 3 scan0023 | |
| Standardization and spring specifications for the clutch on large bore cars. | 6th Jan 1936 | Box 129 \ 3 scan0024 | |
| Photograph showing a fractured clutch pressure plate after a vibrating rig test. | 16th Dec 1938 | Box 129 \ 3 scan0025 | |
| Internal request to place an official order with Messrs. Borg & Beck for a Phantom III driven plate. | 8th Jan 1936 | Box 129 \ 3 scan0026 | |
| Letter to Borg & Beck Ltd. regarding the development, testing, and material specifications for various clutches. | 8th Jan 1936 | Box 129 \ 3 scan0027 | |
| Letter confirming specifications for a 13 1/2 inch plate, discussing the preference for Hyco facings over moulded facings. | 8th Jan 1936 | Box 129 \ 3 scan0028 | |
| Inquiry to Borg & Beck Ltd regarding the balancing of clutches. | 9th Jan 1936 | Box 129 \ 3 scan0029 | |
| Letter from Borg & Beck discussing the chemical and physical analysis of a Phantom III clutch pressure plate. | 9th Jan 1936 | Box 129 \ 3 scan0030 | |
| Laboratory report from Borg & Beck Co. Limited analysing the composition of a clutch plate. | 6th Jan 1936 | Box 129 \ 3 scan0031 | |
| Quotation from Leonard Williams & Co. Ltd. for a clutch assembly for a 12-cylinder Packard. | 8th Jan 1936 | Box 129 \ 3 scan0032 | |
| Mechanical Test Report for a Cast Iron Clutch Pressure Plate. | 9th Jan 1936 | Box 129 \ 3 scan0033 | |
| Order for clutch springs for a 20/25 HP model. | 10th Jan 1936 | Box 129 \ 3 scan0034 | |
| Letter from clutch manufacturer Borg & Beck concerning production clutches, proposed modifications, and ongoing tests. | 10th Jan 1936 | Box 129 \ 3 scan0035 | |
| Continuation letter from Borg & Beck Company Ltd regarding tensile strength and 'Hyco' facings. | 10th Jan 1936 | Box 129 \ 3 scan0036 | |
| Letter from clutch manufacturer Borg & Beck regarding the dispatch of clutch assemblies and suggested modifications. | 10th Jan 1936 | Box 129 \ 3 scan0037 | |
| Specification sheet for standard 10-spline shaft and hub dimensions. | 10th Jan 1936 | Box 129 \ 3 scan0038 | |
| Letter to The Borg & Beck Co. Ltd. regarding the return and modification of an 11A3 clutch. | 14th Jan 1936 | Box 129 \ 3 scan0039 | |
| Requesting an 11' Borg & Beck clutch be sent to the manufacturer for modification. | 14th Jan 1936 | Box 129 \ 3 scan0040 | |
| Letter from a clutch manufacturer about rebuilding an 11.A3 clutch and troubleshooting a failed 11' clutch on a test bed. | 15th Jan 1936 | Box 129 \ 3 scan0041 | |
| Letter from Borg & Beck Company Ltd. regarding an order for clutch springs and proposing a new order for the associated work. | 15th Jan 1936 | Box 129 \ 3 scan0042 | |
| To cancel a previous order for special clutch springs and issue a new order. | 15th Jan 1936 | Box 129 \ 3 scan0043 | |
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