| Description | Date | Identifier | |
| Cover memo for a letter sent to Borg & Beck concerning the Phantom III Clutch. | 17th Jul 1936 | Box 129 \ 3 scan0344 | |
| Letter to Borg & Beck Ltd. concerning loose balance weights on 13½ inch driven plates. | 17th Jul 1936 | Box 129 \ 3 scan0345 | |
| Letter from a supplier concerning the production and high cost of 'Hyco' friction facing samples for a 10' clutch. | 20th Jul 1936 | Box 129 \ 3 scan0346 | |
| Letter from clutch manufacturer Borg & Beck regarding a complaint about balance weights on 13.5 inch driven plates. | 20th Jul 1936 | Box 129 \ 3 scan0347 | |
| Letter from clutch manufacturer Borg & Beck regarding a clutch for a 1935 Bentley 3.5-litre car. | 29th Jul 1936 | Box 129 \ 3 scan0348 | |
| The return and refitting of 36 Phantom III clutches and coordinating with supplier Borg and Beck. | 1st Aug 1936 | Box 129 \ 3 scan0349 | |
| Letter regarding car guarantee invalidation due to fitting non-standard parts. | 4th Aug 1936 | Box 129 \ 3 scan0350 | |
| Letter to Messrs. Borg & Beck Co. Ltd. chasing a delivery of clutch discs, facings and springs. | 4th Jul 1936 | Box 129 \ 3 scan0351 | |
| Letter from Borg & Beck Company Ltd regarding the application of one of their clutches to a 1935 Model 3½ Litre Bentley. | 5th Aug 1936 | Box 129 \ 3 scan0352 | |
| Letter from Borg & Beck Company Ltd. regarding a supply delay for clutches due to incorrectly drilled friction facings. | 6th Aug 1936 | Box 129 \ 3 scan0353 | |
| Letter to Borg & Beck Co. Ltd. concerning clutch facing failures discovered during endurance testing and a request for replacements. | 7th Aug 1936 | Box 129 \ 3 scan0354 | |
| Letter regarding arrangements with Ferodo for facing plates with different materials. | 7th Aug 1936 | Box 129 \ 3 scan0355 | |
| To 'Roy' altering a previous order for 10' driven discs from supplier Borg & Beck. | 10th Aug 1936 | Box 129 \ 3 scan0356 | |
| Letter to Borg & Beck Company Ltd. regarding the riveting of three 10' clutch discs with S.6424 material. | 10th Aug 1936 | Box 129 \ 3 scan0357 | |
| Letter from Borg & Beck regarding trials and replacement of Ferodo No.6 clutch friction facings. | 10th Aug 1936 | Box 129 \ 3 scan0358 | |
| Letter from a clutch manufacturer regarding modifications to 10-inch driven plate assemblies and special 11-inch clutches. | 11th Aug 1936 | Box 129 \ 3 scan0359 | |
| Specification document for clutch thrust springs. | 13th Aug 1936 | Box 129 \ 3 scan0360 | |
| Order for a service gauge plate from Borg & Beck, Ltd. | 14th Aug 1936 | Box 129 \ 3 scan0361 | |
| Communication with Mr. Oubridge of Brico Co. regarding an Eaton's clutch and brake mechanism design. | 14th Aug 1936 | Box 129 \ 3 scan0362 | |
| Table of results for Borg and Beck clutch spring deflection tests for 10' and 11' discs. | 29th Jul 1930 | Box 129 \ 3 scan0363 | |
| The return of an incorrectly sent 7¼' clutch service gauge plate and requesting the correct items. | 21th Aug 1936 | Box 129 \ 3 scan0364 | |
| Order to be placed with Borg & Beck Ltd. for thrust springs for a 10A6 type clutch. | 21th Aug 1936 | Box 129 \ 3 scan0365 | |
| Letter to Borg & Beck Ltd. concerning issues with 10A and Phantom III clutch springs and facings. | 21th Aug 1936 | Box 129 \ 3 scan0366 | |
| Letter from Borg & Beck regarding clutch spring issues and the supply of special clutches and parts for the Phantom III. | 24th Aug 1936 | Box 129 \ 3 scan0367 | |
| Letter to Borg & Beck Ltd. concerning development and selection of a clutch plate for the Phantom III. | 26th Aug 1936 | Box 129 \ 3 scan0368 | |
| Letter from Borg & Beck regarding a complaint and subsequent check on a 10.A3 clutch assembly. | 26th Aug 1936 | Box 129 \ 3 scan0369 | |
| Letter from clutch manufacturers Borg & Beck regarding development of a 13.5' plate for the Phantom III. | 28th Aug 1936 | Box 129 \ 3 scan0370 | |
| Letter from Borg & Beck Company Ltd. regarding the availability of 'Hyco' friction facings for trial on a Bentley model. | 31th Aug 1936 | Box 129 \ 3 scan0371 | |
| The supply of spring steel for Phantom III cushion springs from Borg & Beck and testing alternative materials. | 1st Oct 1937 | Box 129 \ 4 scan0001 | |
| Letter from clutch manufacturer Borg & Beck regarding issues with thrust spring poundage. | 1st Oct 1937 | Box 129 \ 4 scan0002 | |
| Letter to Messrs. Ferodo Ltd. acknowledging receipt of six S-7409 parts for testing on a Phantom III car. | 2nd Oct 1937 | Box 129 \ 4 scan0003 | |
| Return of six clutch springs to Messrs Borg & Beck Co. Ltd for examination and testing. | 7th Oct 1937 | Box 129 \ 4 scan0004 | |
| Letter to Borg & Beck Co. Ltd. discussing test results for 10' clutch springs. | 7th Oct 1937 | Box 129 \ 4 scan0005 | |
| Letter to Cleveland Graphite Bronze Co. about promising results from lead bronze clutch facing tests and requesting more material. | 7th Oct 1937 | Box 129 \ 4 scan0006 | |
| New lead bronze facing solution to improve the life of 20/25 & Old Type Bentley clutches. | 7th Oct 1937 | Box 129 \ 4 scan0007 | |
| The postage of six brown clutch springs to Borg and Beck. | 7th Oct 1937 | Box 129 \ 4 scan0008 | |
| Test report on graphite bronze clutch facings for the 20/25 HP model. | 9th Oct 1937 | Box 129 \ 4 scan0009 | |
| The performance of a clutch with metallic facings under various conditions, including heat and oil tests. | 9th Oct 1937 | Box 129 \ 4 scan0010 | |
| Letter to Cleveland Graphite Bronze, Co. clarifying drawing G.54327 for clutch facings due to incorrect drilling. | 7th Oct 1937 | Box 129 \ 4 scan0011 | |
| Letter from Borg & Beck Company regarding a discrepancy in thrust spring readings and a planned visit. | 11th Oct 1937 | Box 129 \ 4 scan0012 | |
| Clutch complaints for two 20/25 HP cars, detailing the investigation and resolution. | 14th Oct 1937 | Box 129 \ 4 scan0013 | |
| Letter to Messrs. Borg & Beck Co. Ltd. discussing the results of a 17,000-mile test on driven plates. | 14th Oct 1937 | Box 129 \ 4 scan0014 | |
| Recurrent clutch failures on two 20/25 HP chassis and the fitting of new bronze facings for observation. | 15th Oct 1937 | Box 129 \ 4 scan0015 | |
| Clutch trouble on the 20/25 HP chassis, attributing the issue to bad handling. | 19th Oct 1937 | Box 129 \ 4 scan0016 | |
| Receipt, cost, and distribution of graphite bronze clutch facings for 20/25 and 3 1/2 litre Bentley models. | 21th Oct 1937 | Box 129 \ 4 scan0017 | |
| Request for 3 pairs of graphite bronze clutch facings for a 20/25 model. | 21th Oct 1937 | Box 129 \ 4 scan0018 | |
| Dispatch of 3 pairs of graphite bronze clutch facings for a 20/25 HP clutch. | 21th Oct 1937 | Box 129 \ 4 scan0019 | |
| Letter from a clutch manufacturer confirming an urgent order for an 11' Driven Plate Assembly. | 23th Oct 1937 | Box 129 \ 4 scan0020 | |
| Letter to Borg & Beck Co. Ltd. requesting the despatch of an 11' Thermoid faced clutch plate. | 23th Oct 1937 | Box 129 \ 4 scan0021 | |
| Inspection points for 10' and 11' B. & B. clutches being checked for stock. | 25th Oct 1937 | Box 129 \ 4 scan0022 | |
| Urgent telegram requesting 100 sets of graphite bronze clutch facings from Hopkins Cleveland Graphite Bronze Co. | 25th Oct 1937 | Box 129 \ 4 scan0023 | |
| Instruction to despatch 10' and 11' driven plates to Borg and Beck for re-conditioning. | 25th Oct 1937 | Box 129 \ 4 scan0024 | |
| Letter to Borg & Beck Co. Ltd. regarding the re-conditioning of 10' and 11' driven plates from experimental cars. | 25th Oct 1937 | Box 129 \ 4 scan0025 | |
| Requesting the forwarding of clutch driven plates to Messrs Borg & Beck Co.Ltd for reconditioning. | 26th Oct 1937 | Box 129 \ 4 scan0026 | |
| Letter to Borg & Beck Co. Ltd. discussing test results for 10' clutch thrust springs. | 26th Oct 1937 | Box 129 \ 4 scan0027 | |
| Letter suggesting the supply of springs to assemble a service stock of clutches with Thermoid faced discs. | 26th Oct 1937 | Box 129 \ 4 scan0028 | |
| Supply of graphite bronze clutch facings for various cars and arranging credit. | 26th Oct 1937 | Box 129 \ 4 scan0029 | |
| Correspondence from a clutch manufacturer regarding the re-testing and replacement of thrust springs. | 27th Oct 1937 | Box 129 \ 4 scan0030 | |
| The receipt and pricing of an 11' clutch plate assembly with Thermoid facings. | 27th Oct 1937 | Box 129 \ 4 scan0031 | |
| Letter to Borg & Beck Co. Ltd. regarding a change in material for Phantom III clutch cushion springs. | 27th Oct 1937 | Box 129 \ 4 scan0032 | |
| Requesting the dispatch of clutch springs to two different companies. | 28th Oct 1937 | Box 129 \ 4 scan0033 | |
| Letter to Borg & Beck Co. Ltd. regarding springs from a 10 inch clutch. | 28th Oct 1937 | Box 129 \ 4 scan0034 | |
| Letter regarding the dispatch of six Brown Clutch Springs with their poundage test data. | 28th Oct 1937 | Box 129 \ 4 scan0035 | |
| Letter to Borg & Beck Co. Ltd. regarding the supply and reconditioning of 10' and 11' clutch plates. | 28th Oct 1937 | Box 129 \ 4 scan0036 | |
| Letter from Borg & Beck Company Ltd regarding steel strip for Phantom III Cushion Plates and arranging a meeting. | 28th Oct 1937 | Box 129 \ 4 scan0037 | |
| Letter from Borg & Beck Company Ltd. regarding the supply of clutch driven plate assemblies. | 28th Oct 1937 | Box 129 \ 4 scan0038 | |
| Dispatch of brown clutch springs to two companies for examination. | 28th Oct 1937 | Box 129 \ 4 scan0039 | |
| 13 1/2 inch cross cushioned plate, comparing it to a Borg plate for the PIII model. | 28th Oct 1937 | Box 129 \ 4 scan0040 | |
| Letter from Borg & Beck regarding the fabrication of a cross cushion driven plate for a Phantom LII application. | 28th Oct 1937 | Box 129 \ 4 scan0041 | |
| Confirming receipt of Borg & Beck driven plates and requesting an official order for them. | 29th Oct 1937 | Box 129 \ 4 scan0042 | |
| Instructing the dispatch of two 11' clutch plates faced with Thermoid. | 30th Oct 1937 | Box 129 \ 4 scan0043 | |
| Sending a new clutch driven plate with Thermoid facing for testing on a 25/30 chassis G.L.G.5. | 30th Oct 1937 | Box 129 \ 4 scan0044 | |
| Letter to Borg & Beck Co. Ltd. acknowledging receipt of two 11 inch plates. | 1st Nov 1937 | Box 129 \ 4 scan0045 | |
| The supply of two identical sets of Graphite Bronze Clutch Facings for 20/25 and Bentley models. | 4th Nov 1937 | Box 129 \ 4 scan0046 | |
| The trial of a 13½' Cross Cushion Plate from supplier Borg & Beck. | 5th Nov 1937 | Box 129 \ 4 scan0047 | |
| Letter to Messrs Borg & Beck Ltd. regarding a 13.5' Cross Cushion Plate trial and requesting an estimate for a batch of 100. | 5th Nov 1937 | Box 129 \ 4 scan0048 | |
| Request for additional graphite bronze clutch facings for the 20/25-HP model. | 5th Nov 1937 | Box 129 \ 4 scan0049 | |
| Sending two pairs of Graphite Bronze facings for a 20/25 clutch, noting that stock is nearly exhausted. | 6th Nov 1937 | Box 129 \ 4 scan0050 | |
| Supply and low stock of Graphite Bronze clutch facings for the 20/25 or 3 1/4-Litre Bentley. | 6th Nov 1937 | Box 129 \ 4 scan0051 | |
| The order of 1,000 clutch plates from Vandervell Products Ltd. | 6th Nov 1937 | Box 129 \ 4 scan0052 | |
| Letter from Borg & Beck Company Ltd. requesting a quote for 4 undrilled clutch facings. | 6th Nov 1937 | Box 129 \ 4 scan0053 | |
| Letter to Messrs. Borg & Beck Ltd. attaching the minutes of a conference held on October 29th. | 8th Nov 1937 | Box 129 \ 4 scan0054 | |
| Minutes of a conference regarding the Borg & Beck clutch springs for the 4 1/4 litre Bentley. | 8th Nov 1937 | Box 129 \ 4 scan0055 | |
| Technical discussion regarding spring poundage specifications for valve and clutch assemblies. | 8th Nov 1937 | Box 129 \ 4 scan0056 | |
| Letter from a clutch manufacturer confirming arrangements to build a sample plate and prepare an estimate for 100 units. | 8th Nov 1937 | Box 129 \ 4 scan0057 | |
| Letter to Borg & Beck Co. Ltd. regarding an enquiry for the supply of 10' Thermoid facings. | 9th Nov 1937 | Box 129 \ 4 scan0058 | |
| Recommendation for two rigs to facilitate the fitting of Thermoid clutch linings to customer cars. | 9th Nov 1937 | Box 129 \ 4 scan0059 | |
| The forwarding of two Graphite Bronze Clutch Facings for a 20/25 HP Clutch. | 9th Nov 1937 | Box 129 \ 4 scan0060 | |
| Quotation from Borg & Beck Company Ltd for the repair of special driven plate clutch assemblies. | 10th Nov 1937 | Box 129 \ 4 scan0061 | |
| Letter from Borg & Beck Company Ltd regarding a shortfall of 30 Thermoid clutch facings for part No. EX.27309. | 10th Nov 1937 | Box 129 \ 4 scan0062 | |
| Letter from clutch manufacturers Borg & Beck Company Ltd. regarding alterations to a spring for a Bentley clutch. | 11th Nov 1937 | Box 129 \ 4 scan0063 | |
| Letter to a supplier querying a quote for reconditioning plates that is more expensive than buying new ones. | 12th Nov 1937 | Box 129 \ 4 scan0064 | |
| Letter to Borg & Beck Co. Ltd. concerning the poundage specifications for 10-inch clutch springs. | 12th Nov 1937 | Box 129 \ 4 scan0065 | |
| Letter to Messrs. Borg & Beck Co. Ltd. confirming the supply of Thermoid facings with a change in thickness and a superseded part number. | 12th Nov 1937 | Box 129 \ 4 scan0066 | |
| Conflicting price information for 10 inch and 11 inch clutch plates. | 15th Nov 1937 | Box 129 \ 4 scan0067 | |
| Letter from Borg & Beck Company Ltd suggesting that experimental Driving Plate Assemblies be scrapped as they are uneconomical to bring up to standard specification. | 15th Nov 1937 | Box 129 \ 4 scan0068 | |
| Letter to Borg & Beck Co. Ltd. regarding the decision to scrap six plates and service thirty. | 17th Nov 1937 | Box 129 \ 4 scan0069 | |
| Letter from clutch manufacturer Borg & Beck regarding an agreement for testing complete assemblies. | 17th Nov 1937 | Box 129 \ 4 scan0070 | |
| Letter from Borg & Beck regarding the inspection and repair status of 36 clutch units. | 18th Nov 1937 | Box 129 \ 4 scan0071 | |
| Letter to Ben Hopkins of Cleveland Graphite Bronze Co. regarding clutch linings, brake servo linings, and an aluminium tin bearing alloy. | 18th Nov 1937 | Box 129 \ 4 scan0072 | |
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