| Description | Date | Identifier | |
| Scheme for a clutch operating linkage with cantilever pedals for a Bentley, comparing modifications with the 25/30 model. | 10th Mar 1936 | Box 129 \ 3 scan0144 | |
| Modifications for the pedal shaft, clutch pedal, compression rod, and frame stiffener. | 10th Mar 1936 | Box 129 \ 3 scan0145 | |
| Despatch of a 10' clutch driven plate to Messrs. Borg and Beck Ltd. for modification. | 16th Mar 1936 | Box 129 \ 3 scan0146 | |
| Letter to The Borg & Beck Clutch Company Ltd. regarding trials and specifications for clutch plates. | 16th Mar 1936 | Box 129 \ 3 scan0147 | |
| To Roy about ordering a Phantom III clutch plate from supplier Borg & Beck. | 16th Mar 1936 | Box 129 \ 3 scan0148 | |
| Letter to The Borg & Beck Clutch Co. Ltd. requesting a 10 1/2' driven plate for production cars. | 16th Mar 1936 | Box 129 \ 3 scan0149 | |
| Letter from Borg & Beck Company Ltd regarding a special 13.5-inch driven plate with Hyco friction facings for a Phantom III application. | 17th Mar 1936 | Box 129 \ 3 scan0150 | |
| Graphs showing spring deflection test results for three different Borg and Beck clutch discs. | 29th Jul 1936 | Box 129 \ 3 scan0151 | |
| Graphs showing the results of spring deflection tests for three different clutch discs. | 29th Jul 1936 | Box 129 \ 3 scan0152 | |
| Letter from Borg & Beck concerning clutch plate materials, specifications, and friction characteristics. | 17th Mar 1936 | Box 129 \ 3 scan0153 | |
| Letter from Borg & Beck Company Ltd confirming a meeting to discuss production supplies of 11' clutches. | 18th Mar 1936 | Box 129 \ 3 scan0154 | |
| The return of faulty Borg & Beck clutches due to a bad finish. | 20th Mar 1936 | Box 129 \ 3 scan0155 | |
| Outlining modifications for Borg & Beck clutch assemblies and a driven plate. | 20th Mar 1936 | Box 129 \ 3 scan0156 | |
| Production finish issues found on Borg & Beck clutches. | 23th Mar 1936 | Box 129 \ 3 scan0157 | |
| Letter from clutch manufacturer Borg & Beck regarding the finish and appearance of clutch units. | 23th Mar 1936 | Box 129 \ 3 scan0158 | |
| Continuation sheet of a letter from Borg & Beck Company Limited concerning the withholding of clutch deliveries and discussing additional costs. | 23th Mar 1936 | Box 129 \ 3 scan0159 | |
| Letter from a clutch manufacturer regarding the repair and modification of clutch assemblies and driven plates. | 23th Mar 1936 | Box 129 \ 3 scan0160 | |
| The despatch of a driven plate and hub to Borg & Beck Ltd., and placing an order for related work. | 24th Mar 1936 | Box 129 \ 3 scan0161 | |
| Letter to Borg & Beck Ltd. concerning testing and sourcing materials for driven plates. | 24th Mar 1936 | Box 129 \ 3 scan0162 | |
| Letter from clutch manufacturer Borg & Beck regarding the modification of driven plates. | 25th Mar 1936 | Box 129 \ 3 scan0163 | |
| Letter from Borg & Beck Company Ltd. regarding the manufacture of special driven plates. | 25th Mar 1936 | Box 129 \ 3 scan0164 | |
| Instruction to fit a production Borg & Beck clutch, stamped No.14, to a B-16 unit for 5-B-IV. | 26th Mar 1936 | Box 129 \ 3 scan0165 | |
| Letter from Borg & Beck Company Ltd. regarding the despatch of two special 13.5' driven plates. | 26th Mar 1936 | Box 129 \ 3 scan0166 | |
| Request to book in and assess two 11-inch Borg & Beck clutches for the 25/30 HP model. | 27th Mar 1936 | Box 129 \ 3 scan0167 | |
| Letter to Borg & Beck Ltd. providing feedback on the finish of two 11' sample clutches. | 27th Mar 1936 | Box 129 \ 3 scan0168 | |
| Letter regarding the possibility of obtaining 'Hyco' in England and acknowledging receipt of plates. | 27th Mar 1936 | Box 129 \ 3 scan0169 | |
| The investigation of clutch jagger issues in a Phantom III model. | 30th Mar 1936 | Box 129 \ 3 scan0170 | |
| Clutch performance, tests, and the friction material used. | 30th Mar 1936 | Box 129 \ 3 scan0171 | |
| Letter from Borg & Beck Company Ltd. regarding sample clutches and manufacturing adjustments. | 30th Mar 1936 | Box 129 \ 3 scan0172 | |
| Letter regarding an error in hub assemblies, arrangements for Hyco friction fabric, and Bentley clutches. | 30th Mar 1936 | Box 129 \ 3 scan0173 | |
| Letter from Borg & Beck Company Limited regarding charges for stripping and re-building clutches and a request for additional parts. | 30th Mar 1936 | Box 129 \ 3 scan0174 | |
| Letter to Borg & Beck Ltd. concerning paint finish on clutches and faulty machining on driven plate hubs. | 1st Apr 1936 | Box 129 \ 3 scan0175 | |
| Letter discussing clutch material testing, issues with a faulty plate, and excessive wear on 10' and 11' clutches. | 1st Apr 1936 | Box 129 \ 3 scan0176 | |
| Sending a Phantom III clutch driven plate and facings to be refaced with Ferodo material by Messrs. Borg & Beck Ltd. | 1st Apr 1936 | Box 129 \ 3 scan0177 | |
| Letter from a clutch manufacturer regarding the supply, machining faults, and material testing of clutch components. | 2nd Apr 1936 | Box 129 \ 3 scan0178 | |
| Letter from Borg & Beck Company Limited regarding the production and testing of a 10.A3 clutch. | 2nd Apr 1936 | Box 129 \ 3 scan0179 | |
| Order to Borg and Beck Ltd. for a modified 10A3 Bentley Clutch. | 3rd Apr 1936 | Box 129 \ 3 scan0180 | |
| Letter to Messrs. Borg & Beck Ltd. concerning issues with production clutches and progress on a new clutch design. | 3rd Apr 1936 | Box 129 \ 3 scan0181 | |
| Faults found in sample 11' Borg and Beck clutches for the 25/30 HP model. | 3rd Apr 1936 | Box 129 \ 3 scan0182 | |
| Letter to supplier Messrs. Borg & Beck Ltd. regarding an order for a clutch assembly and a plate with specific lining material. | 6th Apr 1936 | Box 129 \ 3 scan0183 | |
| Letter from Borg & Beck Company Ltd. discussing an out-of-round issue with an 11-inch clutch. | 6th Apr 1936 | Box 129 \ 3 scan0184 | |
| Letter from Borg & Beck Company Limited regarding a proposed works visit, countersink depth, and the disassembly of a sample 10.A3 clutch. | 6th Apr 1936 | Box 129 \ 3 scan0185 | |
| The procurement of a specific Bentley clutch from supplier Messrs. Borg & Beck. | 6th Apr 1936 | Box 129 \ 3 scan0186 | |
| Material defects in a clutch centre and proposing a change from nickel steel to carbon steel. | 6th Apr 1936 | Box 129 \ 3 scan0187 | |
| Advice note from Borg & Beck Co., Ltd. for a rectified 13 1/4 inch Driven Plate Assembly. | 7th Apr 1936 | Box 129 \ 3 scan0188 | |
| Cover note for an attached letter sent to Borg & Beck concerning their clutches. | 8th Apr 1936 | Box 129 \ 3 scan0189 | |
| Letter to Borg & Beck Ltd. concerning the 'out of roundness' of clutch covers and its impact on flywheel assembly balance. | 8th Apr 1936 | Box 129 \ 3 scan0190 | |
| Letter discussing issues with clutch assembly roundness and potential distortion. | 8th Apr 1936 | Box 129 \ 3 scan0191 | |
| Requesting to book a 13 3/4 inch driven plate from Borg & Beck into the works. | 8th Apr 1936 | Box 129 \ 3 scan0192 | |
| Letter from clutch manufacturer Borg & Beck regarding visits to discuss clutch finish and an alignment jig. | 9th Apr 1936 | Box 129 \ 3 scan0193 | |
| Requesting to book a 10A3 type Borg & Beck clutch with a reinforced cover into the Works. | 15th Apr 1936 | Box 129 \ 3 scan0194 | |
| Advice note from Borg & Beck Co., Ltd. for a modified 10 A3 clutch. | 15th Apr 1936 | Box 129 \ 3 scan0195 | |
| Letter to Borg & Beck Ltd. urging the supply of a 10' Clutch assembly with red thrust springs. | 16th Apr 1936 | Box 129 \ 3 scan0196 | |
| Letter from Borg & Beck Company Ltd. confirming the despatch of a 10' clutch. | 17th Apr 1936 | Box 129 \ 3 scan0197 | |
| Letter from a clutch manufacturer regarding the dispatch and additional costs for three pressure plates. | 7th May 1936 | Box 129 \ 3 scan0198 | |
| Letter from Borg & Beck Company Ltd. concerning the fabrication and dispatch of two special 13 1/2' driven plates. | 8th May 1936 | Box 129 \ 3 scan0199 | |
| Requesting a confirmatory order be passed to Borg & Beck for two Phantom III clutch driven plates. | 9th May 1936 | Box 129 \ 3 scan0200 | |
| Required modifications to the appearance of the Borg and Beck clutch pressure plate casting. | 11th May 1936 | Box 129 \ 3 scan0201 | |
| Return of three loaned pressure plates to Borg & Beck. | 12th May 1936 | Box 129 \ 3 scan0202 | |
| Letter to The Borg & Beck Company Ltd. regarding the quality and return of various clutch components. | 12th May 1936 | Box 129 \ 3 scan0203 | |
| Page two of a typed letter urgently requesting 10' plates lined with 'No.6' material. | 12th May 1936 | Box 129 \ 3 scan0204 | |
| Letter to Borg & Beck Ltd. concerning clutch issues on the Phantom III and 10 inch clutches. | 13th May 1936 | Box 129 \ 3 scan0205 | |
| Letter from Borg & Beck confirming the dispatch of a special 13.5' driven plate for a Phantom III application. | 15th May 1936 | Box 129 \ 3 scan0206 | |
| Copy advice note from Borg & Beck Co., Ltd. for a despatched service gauge plate. | 15th May 1936 | Box 129 \ 3 scan0207 | |
| Advice note from Borg & Beck Co. Ltd. for a special 13 1/2' driven plate. | 15th May 1936 | Box 129 \ 3 scan0208 | |
| Test of new Phantom III clutch driven plates with a modified U-slot design suggested by Borg & Beck. | 15th May 1936 | Box 129 \ 3 scan0209 | |
| The cause and resolution of 'jagger' issues in Bentley 25/30 HP clutches. | 15th May 1936 | Box 129 \ 3 scan0210 | |
| Letter to Borg & Beck Ltd. regarding drawing corrections for 13 3/4' driven plates and ongoing tests. | 15th May 1936 | Box 129 \ 3 scan0211 | |
| The material choice for the Bentley & 25/30 HP clutch. | 15th May 1936 | Box 129 \ 3 scan0212 | |
| The return of two faulty 10A3 Borg & Beck clutches for rectification. | 15th May 1936 | Box 129 \ 3 scan0213 | |
| Letter to Borg & Beck Ltd. concerning faults found in 10A3 and 11A3 clutches following a works visit. | 15th May 1936 | Box 129 \ 3 scan0214 | |
| 'run out' and crimping on 13½ inch driven clutch plates. | 15th May 1936 | Box 129 \ 3 scan0215 | |
| Letter from Borg & Beck Company Ltd. confirming arrangements for clutch manufacturing and testing. | 16th May 1936 | Box 129 \ 3 scan0216 | |
| Letter to Borg & Beck Ltd. regarding issues with the crimping and flatness of 13½' driven discs. | 18th Apr 1936 | Box 129 \ 3 scan0217 | |
| Letter to Borg & Beck Ltd. regarding cushioning and run-out of driven plates and the delivery of Ferodo linings. | 21th Apr 1936 | Box 129 \ 3 scan0218 | |
| Sending a 10' Borg & Beck clutch plate for a Bentley to be relined with Ferodo material. | 21th Apr 1936 | Box 129 \ 3 scan0219 | |
| Despatch request for a 10' clutch driven plate to be sent to Borg & Beck Ltd. for re-lining. | 22th Apr 1936 | Box 129 \ 3 scan0220 | |
| Correspondence with supplier Borg & Beck Ltd. regarding relining a 10' clutch plate and requiring a modified 11A3 clutch. | 22th Apr 1936 | Box 129 \ 3 scan0221 | |
| Letter from clutch manufacturer Borg & Beck regarding 13.5 inch driven plates and an order from Ferodo. | 23th Apr 1936 | Box 129 \ 3 scan0222 | |
| Letter from clutch manufacturer Borg & Beck regarding an order for Ferodo friction facings and a driven plate. | 23th Apr 1936 | Box 129 \ 3 scan0223 | |
| Correspondence with Messrs. Borg & Beck Ltd. regarding an 11A3 clutch assembly and order details. | 24th Apr 1936 | Box 129 \ 3 scan0224 | |
| Letter from Borg & Beck Company Ltd confirming the despatch of materials related to Order No. 13733. | 25th Apr 1936 | Box 129 \ 3 scan0225 | |
| The despatch of a Ph.III clutch driven plate and linings to Borg & Beck for refacing. | 27th Apr 1936 | Box 129 \ 3 scan0226 | |
| Letter to Messrs. Borg & Beck Ltd. discussing the failure of a facing and comparing Hyco and Ferodo No.6 materials. | 28th Apr 1936 | Box 129 \ 3 scan0227 | |
| Request to order six 10' Bentley clutch driven plates from Borg & Beck. | 29th Apr 1936 | Box 129 \ 3 scan0228 | |
| Letter to Borg & Beck Ltd. concerning clutch modifications, an order for driven plates, and issues with balance weights. | 29th Apr 1936 | Box 129 \ 3 scan0229 | |
| Suggestion by Mr. Armitage to modify a 13 1/2 inch plate and proposing an experimental test. | 29th Apr 1936 | Box 129 \ 3 scan0230 | |
| Failure of a clutch facing on a Phantom III and comparing different materials. | 29th Apr 1936 | Box 129 \ 3 scan0231 | |
| Letter from clutch manufacturer Borg & Beck regarding a visit, No.6 Facings, and instructions for rivet hole countersinking. | 29th Apr 1936 | Box 129 \ 3 scan0232 | |
| Letter to Ferodo Limited detailing tensile strength test results for Ferodo and Raybestos materials. | 30th Apr 1936 | Box 129 \ 3 scan0233 | |
| Comparison of centrifugal stress on clutch materials 'Hyco' and 'No.6'. | 30th Apr 1936 | Box 129 \ 3 scan0234 | |
| Letter from a clutch manufacturer regarding orders and specifications for various driven plate assemblies. | 30th Apr 1936 | Box 129 \ 3 scan0235 | |
| Letter from Borg & Beck Company Limited regarding Ferodo No. 6 material and a particular plate. | 1st May 1936 | Box 129 \ 3 scan0236 | |
| Letter reporting the tensile strength test results of Ferodo and Raybestos material samples. | 1st May 1936 | Box 129 \ 3 scan0237 | |
| Letter discussing clutch material stress for 'Hyco' and 'No.6' and enquiring about cadmium plating on driven plate hubs. | 4th May 1936 | Box 129 \ 3 scan0238 | |
| Letter from a clutch manufacturer discussing test results on friction material and cadmium plating. | 4th May 1936 | Box 129 \ 3 scan0239 | |
| Continuation page of a letter from Borg & Beck Company Limited concerning excessive spline clearance. | 5th May 1936 | Box 129 \ 3 scan0240 | |
| Two Phantom III clutch driven plates taken by Mr. Armitage of Borg & Beck for refacing. | 5th May 1936 | Box 129 \ 3 scan0241 | |
| Letter to Messrs. Borg & Beck Ltd. regarding the quality of English-made Hyco compared to the American product. | 5th May 1936 | Box 129 \ 3 scan0242 | |
| Letter from Borg & Beck regarding the relining of two 13 1/2' diameter driven plates with Ferodo No.6 material. | 6th May 1936 | Box 129 \ 3 scan0243 | |
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