| Description | Date | Identifier | |
| Arrangements to fit a set of Girling brakes to a Bentley car. | 10th Dec 1934 | Box 120 \ 3 scan0111 | |
| Promotional brochure for Holden & Hunt High Tensile Steel Brake Drums. | 10th Dec 1934 | Box 120 \ 3 scan0112 | |
| Specification and promotional document for H&H Steel Brake Drums, detailing materials, construction, and performance. | 13th Dec 1934 | Box 120 \ 3 scan0113 | |
| Letter from New-Hudson Ltd confirming the despatch of a model Girling Brake shoe and expander set-up for testing. | 13th Dec 1934 | Box 120 \ 3 scan0114 | |
| Loan of Bentley axle parts to New-Hudson Ltd. for fitting with Girling design brakes. | 17th Dec 1934 | Box 120 \ 3 scan0115 | |
| Letter to New-Hudson Ltd. regarding the despatch of a complete Bentley front and rear axle assembly. | 18th Dec 1934 | Box 120 \ 3 scan0116 | |
| Letter from New-Hudson Ltd. confirming arrangements to receive a complete front and rear axle assembly for a Bentley car. | 19th Dec 1934 | Box 120 \ 3 scan0117 | |
| Letter to Rover regarding Girling brake shudder and arrangements for a car delivery. | 19th Dec 1934 | Box 120 \ 3 scan0118 | |
| Letter from The Rover Company Ltd concerning brake shudder on Girling Brakes. | 20th Dec 1934 | Box 120 \ 3 scan0119 | |
| Letter to The Rover Company confirming interest in the frequency of a 'grunt or groan' on a 12 HP car. | 27th Dec 1934 | Box 120 \ 3 scan0120 | |
| Letter detailing the results of efficiency experiments on a submitted Girling brake sample. | 29th Dec 1934 | Box 120 \ 3 scan0121 | |
| Letter requesting clarification on the expected amount of 'sponge' in the Girling system. | 29th Dec 1934 | Box 120 \ 3 scan0122 | |
| Request for 'sponge' measurements on a Girling Brake drum for a Bentley. | 2nd Jan 1935 | Box 120 \ 3 scan0123 | |
| The mechanical efficiency of Girling Cams compared to Bentley cams in brake systems. | 3rd Jan 1935 | Box 120 \ 3 scan0124 | |
| Comparing the mechanical efficiency of Girling and Bentley brake system cams. | 3rd Jan 1935 | Box 120 \ 3 scan0125 | |
| Discrepancy between a 'sponge' figure and other clearance/travel figures. | 3rd Jan 1935 | Box 120 \ 3 scan0126 | |
| Graph showing the efficiency and movement of Girling Cams under varying loads. | 3rd Jan 1935 | Box 120 \ 3 scan0127 | |
| Graph comparing the efficiency curves of Girling cams and Bentley cams. | 3rd Jan 1935 | Box 120 \ 3 scan0128 | |
| Blueprint graph showing efficiency and movement tests for Girling Brakes under load. | 3rd Jan 1935 | Box 120 \ 3 scan0129 | |
| Letter from New-Hudson Ltd regarding the test results and analysis of a Girling brake sample. | 3rd Jan 1935 | Box 120 \ 3 scan0130 | |
| Letter discussing brake shoe and drum clearances, and brake pedal feel. | 3rd Jan 1935 | Box 120 \ 3 scan0131 | |
| Letter from New-Hudson Ltd. regarding the modification of a front and rear axle assembly and the fitting of a GIRLING BRAKING System. | 3rd Jan 1935 | Box 120 \ 3 scan0132 | |
| Letter to New-Hudson Ltd. agreeing to alter front and rear axle components and forward the relevant drawings. | 5th Jan 1938 | Box 120 \ 3 scan0133 | |
| Letter from New-Hudson Ltd. regarding alterations to the front axle beam and rear axle tubes. | 18th Jan 1935 | Box 120 \ 3 scan0134 | |
| Letter to Messrs. New-Hudson Ltd. sending an Arrangement Drawing of the Bentley Rear Hub. | 10th Jan 1935 | Box 120 \ 3 scan0135 | |
| Letter from New-Hudson Ltd acknowledging receipt of an arrangement drawing for a Bentley Rear Hub. | 12th Jan 1935 | Box 120 \ 3 scan0136 | |
| Letter from New-Hudson Ltd regarding the General Arrangement of Girling Brakes. | 21th Jan 1935 | Box 120 \ 3 scan0137 | |
| Letter to Messrs. New-Hudson Ltd. providing feedback on a Girling Brake layout for a Bentley chassis. | 22th Jan 1935 | Box 120 \ 3 scan0138 | |
| Letter from New-Hudson Ltd responding to feedback on the design and features of the Girling Universal Brake. | 24th Jan 1935 | Box 120 \ 3 scan0139 | |
| The concluding page of a letter from the Works Manager of New Hudson Ltd. | 24th Jan 1935 | Box 120 \ 3 scan0140 | |
| Letter from New-Hudson Ltd. regarding the completion and fitting of Girling Brakes. | 5th Feb 1935 | Box 120 \ 3 scan0141 | |
| Letter to New-Hudson Ltd. concerning axles for an experimental chassis, brake linkage, and test purposes. | 6th Feb 1935 | Box 120 \ 3 scan0142 | |
| Letter from New-Hudson Ltd regarding fitting the Girling Universal Brake to a chassis. | 8th Feb 1934 | Box 120 \ 3 scan0143 | |
| Letter to Messrs. New-Hudson Ltd. requesting component weights and details about a new brake design. | 12th Feb 1935 | Box 120 \ 3 scan0144 | |
| Letter from New-Hudson Ltd regarding a delay with brake drums due to a flaw, and refuting claims about a new brake design. | 1st Mar 1935 | Box 120 \ 3 scan0145 | |
| List of approximate weights for Bentley brake parts from New-Hudson Ltd. | 1st Mar 1935 | Box 120 \ 3 scan0146 | |
| Calculations for front and rear brake lever ratios for a Girling System on a 3-B-IV model. | 11th Mar 1935 | Box 120 \ 3 scan0147 | |
| Recommendations for foot and hand brake connections and modifications. | 11th Mar 1935 | Box 120 \ 3 scan0148 | |
| Letter from New-Hudson Ltd requesting a chassis to fit the Girling Universal Brake. | 11th Mar 1935 | Box 120 \ 3 scan0149 | |
| Letter to New-Hudson Ltd. regarding the fitting of a Girling axle to a car. | 14th Mar 1935 | Box 120 \ 3 scan0150 | |
| The layout and development work on Girling Brakes for the 3-B-IV. | 30th Mar 1935 | Box 120 \ 3 scan0151 | |
| Scheme for adapting a Bentley 3B IV to Girling brakes on the rear axle. | 27th Mar 1935 | Box 120 \ 3 scan0152 | |
| Blueprint for the adaption of Bentley 3 B IV to Girling brakes on the front axle. | 27th Mar 1935 | Box 120 \ 3 scan0153 | |
| Invitation to discuss issues experienced with the Girling brake layout on a Bentley chassis. | 1st Apr 1935 | Box 120 \ 3 scan0154 | |
| Letter from New-Hudson Ltd confirming a meeting to discuss the Girling layout on a Bentley chassis. | 2nd Apr 1935 | Box 120 \ 3 scan0155 | |
| Arrangement of rear brake for a 3 1/2 Litre B.E.N. model. | 21th Jan 1935 | Box 120 \ 3 scan0156 | |
| Blueprint showing the arrangement of a front brake for a 3 1/2 litre B.E.N. vehicle. | 27th Jan 1935 | Box 120 \ 3 scan0157 | |
| Schematic for the adaption of a Bentley 3B IV to Girling brakes on the rear axle. | 27th Mar 1935 | Box 120 \ 3 scan0158 | |
| Blueprint for the adaptation of Bentley 3 B IV to Girling brakes on the front axle. | 27th May 1936 | Box 120 \ 3 scan0159 | |
| Letter from New-Hudson Ltd concerning the supply and testing of B Z brake linings for Girling Universal Brakes. | 4th Apr 1935 | Box 120 \ 3 scan0160 | |
| Advice note from New-Hudson Ltd for a set of 12' steel shoes for parking brakes. | 4th Apr 1935 | Box 120 \ 3 scan0161 | |
| Letter to New-Hudson Ltd. regarding brake 'fade' and 'sponge' issues on a Bentley, requesting modified parts for further testing. | 13th Apr 1935 | Box 120 \ 3 scan0162 | |
| Letter from Ferodo Ltd. to New Hudson Ltd. detailing the examination of brake shoes and linings. | 13th Apr 1935 | Box 120 \ 3 scan0163 | |
| Page 2 of a copy of a letter received from Ferodo Limited. | 18th Apr 1935 | Box 120 \ 3 scan0164 | |
| Letter from New-Hudson Ltd to Rolls Royce regarding brake performance issues and suggested improvements. | 18th Apr 1935 | Box 120 \ 3 scan0165 | |
| Letter from New-Hudson Ltd. regarding puzzling returned brake shoes with M.R. linings. | 18th Apr 1935 | Box 120 \ 3 scan0166 | |
| Difficulties and solutions discussed with E.R.A's concerning their Girling brake layout. | 29th Apr 1935 | Box 120 \ 3 scan0167 | |
| Letter to New-Hudson Ltd. concerning Girling brake tests, discussing results, issues with locking, and suggestions for future testing. | 3rd May 1935 | Box 120 \ 3 scan0168 | |
| Letter discussing brake drum weight and servo system advantages. | 3rd May 1935 | Box 120 \ 3 scan0169 | |
| Letter from New-Hudson Ltd concerning the supply of a front drum and hub plate for the Girling Universal Brake. | 3rd May 1935 | Box 120 \ 3 scan0170 | |
| Concluding page of a letter from New Hudson Ltd. | 3rd May 1935 | Box 120 \ 3 scan0171 | |
| Letter from New-Hudson Ltd discussing brake specifications, pedal travel, and chassis modifications. | 9th May 1935 | Box 120 \ 3 scan0172 | |
| Letter from New Hudson Ltd. concerning brake linings and drum weights for an E.R.A. racing car. | 9th May 1935 | Box 120 \ 3 scan0173 | |
| Letter to New-Hudson Ltd. concerning the postponement of further tests on Girling brakes. | 11th May 1935 | Box 120 \ 3 scan0174 | |
| Proposal from New-Hudson Ltd to test their Girling Universal Brake on a Rolls-Royce experimental chassis. | 25th Jun 1935 | Box 120 \ 3 scan0175 | |
| Concluding page of a letter from New Hudson Ltd. | 25th Jun 1935 | Box 120 \ 3 scan0176 | |
| Letter to New-Hudson Limited regarding a special axle beam and trials of Girling brakes. | 2nd Jul 1935 | Box 120 \ 3 scan0177 | |
| Invitation from New-Hudson Ltd to visit their stand at the Motor Exhibition at Olympia. | 11th Oct 1933 | Box 120 \ 3 scan0178 | |
| New automatic brake adjustment system and recommending its trial on the Spectre model. | 16th Oct 1935 | Box 120 \ 3 scan0179 | |
| Blueprint showing an automatic brake adjustment mechanism. | 17th Oct 1935 | Box 120 \ 3 scan0180 | |
| Letter from Ferodo Limited regarding an automatic brake adjustment apparatus, S.5805 trial sets, and RAD.5 crank-shaft dampers. | 22th Oct 1935 | Box 120 \ 3 scan0181 | |
| Requesting an order for a Bendix Brake Press-O-meter for the Experimental Department. | 23th Oct 1935 | Box 120 \ 3 scan0182 | |
| Visit from Transport Brakes Limited regarding their special TBL Friction lining material and enclosed performance test charts. | 22th Nov 1935 | Box 120 \ 3 scan0183 | |
| Letter from New-Hudson Ltd. offering to supply Girling braking systems for 1937 productions. | 26th Nov 1935 | Box 120 \ 3 scan0184 | |
| Letter to Roy declining to test new brake materials from Transport Brakes Limited. | 28th Nov 1935 | Box 120 \ 3 scan0185 | |
| Letter from Bendix Ltd. enclosing booklets on their latest brake and auto control systems. | 12th Dec 1935 | Box 120 \ 3 scan0186 | |
| Letter from Automotive Products Company requesting signatures for British and American patent applications for a dual braking system. | 24th Jun 1938 | Box 121 \ 1 scan0001 | |
| Continuation of a letter from Automotive Products Company Ltd. regarding the signing of agreement documents. | 24th Jun 1938 | Box 121 \ 1 scan0002 | |
| Letter from Bendix confirming receipt of drawings and proceeding with a final layout for an iron drum with steel shoes. | 24th Jun 1938 | Box 121 \ 1 scan0003 | |
| Instructions for the rear brake equaliser on the semi-floating rear axle for Bentley 111 and 50 models. | 29th Jun 1938 | Box 121 \ 1 scan0004 | |
| Instructions for the rear brake equaliser mounting on the Bentley 111 and 50 models with semi-floating rear axles. | 29th Jun 1938 | Box 121 \ 1 scan0005 | |
| The inconvenient rear brake adjustment on Bentley 111 and 50 models, suggesting a new design for trial. | 30th Jun 1938 | Box 121 \ 1 scan0006 | |
| The accessibility of the rear brake adjustment on Bentley 111 and 50 models, suggesting a new design for trial. | 30th Jun 1938 | Box 121 \ 1 scan0007 | |
| Scheme to stiffen the front brake gear on Bentley 111 and 50 models to reduce flexibility. | 1st Jul 1938 | Box 121 \ 1 scan0008 | |
| Technical memo discussing design changes and responses for the Bentley 111 and 50 chassis. | 4th Jul 1938 | Box 121 \ 1 scan0009 | |
| Running board supports, spring sizes, and pedal design. | 4th Jul 1938 | Box 121 \ 1 scan0010 | |
| Urgent letter regarding a patent form for a Booster Dual Braking System. | 12th Jul 1938 | Box 121 \ 1 scan0011 | |
| Letter to Automotive Products Co., Ltd. regarding a delayed signed document requiring legalization by the American Consul. | 13th Jul 1938 | Box 121 \ 1 scan0012 | |
| Letter regarding a British Patent Form and an American assignment. | 14th Jul 1938 | Box 121 \ 1 scan0013 | |
| Advice note from New-Hudson Ltd for the dispatch of brake operating rods from the Girling Brake Department. | 17th Jul 1938 | Box 121 \ 1 scan0014 | |
| Invoice from New-Hudson Ltd. for expander units and adjusters, requesting price certification. | 23th Jul 1938 | Box 121 \ 1 scan0015 | |
| Letter to Ferodo Ltd. enquiring about the progress of a test rig for a half Bentley axle. | 5th Aug 1938 | Box 121 \ 1 scan0016 | |
| Short internal memo confirming the price of £64.16.6 for Bentley Brakes is reasonable. | 5th Aug 1938 | Box 121 \ 1 scan0017 | |
| Letter from Ferodo Limited regarding a delay in setting up a test rig for a Bentley half axle due to a works shutdown. | 6th Aug 1932 | Box 121 \ 1 scan0018 | |
| Post Office Telegram confirming the arrival time of brake operating rods in Derby. | 17th Aug 1940 | Box 121 \ 1 scan0019 | |
| Letter from New-Hudson Ltd confirming a telegram about the despatch and arrival of Brake Operating Rods. | 17th Aug 1938 | Box 121 \ 1 scan0020 | |
| Letter to Automotive Products Ltd. requesting a list of standard unions for Lockheed brakes and feedback on a new brake design. | 18th Aug 1938 | Box 121 \ 1 scan0021 | |
| Covering order for brake rods for B.III & 50 models. | 18th Aug 1938 | Box 121 \ 1 scan0022 | |
| Requesting a covering order for brake rods for models B.III & 50, which have already been received. | 18th Aug 1938 | Box 121 \ 1 scan0023 | |
| Letter from Bendix Limited advising they have put in hand one pair of 12 x 2 1/4' 2.L.S rear brakes and are requesting a formal order. | 19th Aug 1938 | Box 121 \ 1 scan0024 | |
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