| Description | Date | Identifier | |
| Letter from New Hudson Ltd arranging a visit to inspect Girling Brakes and discuss an idler lever and wedge unit. | 13th May 1937 | Box 120 \ 2 scan0159 | |
| Requesting the return of defective Phantom III Lepaz brake drums due to blow holes. | 26th May 1937 | Box 120 \ 2 scan0160 | |
| Requesting to hold payment for faulty Phantom III front brake drum castings due to blow holes. | 26th May 1937 | Box 120 \ 2 scan0161 | |
| Letter to Ley's Malleable Castings Co., Ltd. regarding the return of four faulty Phantom III brake drum castings. | 26th May 1937 | Box 120 \ 2 scan0162 | |
| Preparation and supply of aluminium brake drums and Ferodo linings for a test at Le Mans. | 26th May 1937 | Box 120 \ 2 scan0163 | |
| Letter from New-Hudson Ltd discussing uneven brake lining wear on a Bentley car and proposing modifications. | 21th May 1937 | Box 120 \ 2 scan0164 | |
| Page 2 of a letter from NEW HUDSON LTD. | 21th May 1937 | Box 120 \ 2 scan0165 | |
| Letter from New Hudson Ltd. to Rolls Royce discussing a license to manufacture Girling Brake parts for a royalty fee. | 21th May 1937 | Box 120 \ 2 scan0166 | |
| Letter to New-Hudson Ltd. concerning Bentley brake shoes and a potential Girling brakes license. | 1st Jun 1937 | Box 120 \ 2 scan0167 | |
| Letter to New-Hudson, Ltd. confirming a meeting for the following day. | 2nd Jun 1937 | Box 120 \ 2 scan0168 | |
| Letter from Automotive Products Company regarding experimental tests of Lockheed fluid brake equipment on a Rolls Phantom Chassis. | 22th Jun 1937 | Box 120 \ 2 scan0169 | |
| Letter to Automotive Products Co. Ltd. concerning brake fitting, material machining and ordering fluid. | 25th Jun 1937 | Box 120 \ 2 scan0170 | |
| Order of 'Orange' Lockheed brake fluid for a Phantom III brake system. | 25th Jun 1937 | Box 120 \ 2 scan0171 | |
| Letter to Automotive Products Ltd. concerning a patent application. | 25th Jun 1937 | Box 120 \ 2 scan0172 | |
| Letter to New Hudson Ltd. outlining objections to standard Girling brakes and discussing parts for a new car design. | 28th Jun 1937 | Box 120 \ 2 scan0173 | |
| Letter from Automotive Products Company Ltd regarding the improved position of Lockheed Fluid Brake Equipment and arranging an installation engineer visit. | 28th Jun 1937 | Box 120 \ 2 scan0174 | |
| Letter from New-Hudson Ltd. regarding a car design suitable for Girling Brakes and addressing objections. | 29th Jun 1937 | Box 120 \ 2 scan0175 | |
| The design, cost, and testing of wireless anti-static earthing adaptors for front brake drums. | 1st Jul 1937 | Box 120 \ 2 scan0176 | |
| Letter to Automotive Products Ltd. regarding a foul between the Lockheed brake cylinder and yoke on a Phantom III, causing a delay. | 6th Jul 1937 | Box 120 \ 2 scan0177 | |
| From Rm to Hs regarding the issue of squeaking brakes and the intention to source new linings from America. | 13th Jul 1937 | Box 120 \ 2 scan0178 | |
| Account of experimental work done to eliminate brake squeaks. | 12th Jul 1937 | Box 120 \ 2 scan0179 | |
| The issues of glazing and squeaking in Ferodo brake and clutch linings, and tests of alternative materials. | 12th Jul 1937 | Box 120 \ 2 scan0180 | |
| Summary of test results and observations on various brake lining materials. | 12th Jul 1937 | Box 120 \ 2 scan0181 | |
| Letter from General Plastics regarding the use of Durez 1606 liquid resin for impregnating asbestos linings. | 23th Jul 1937 | Box 120 \ 2 scan0182 | |
| Letter from General Plastics regarding the coefficient of friction with China Wood Oil and pricing for 1606 resin. | 23th Jul 1937 | Box 120 \ 2 scan0183 | |
| Letter to the Institute of Automobile Engineering concerning brake squeak and cylinder wear. | 2nd Aug 1937 | Box 120 \ 2 scan0184 | |
| Letter to New Hudson Ltd. regarding an order for expander and adjuster units and the review of print N.Sch.5178. | 3rd Aug 1937 | Box 120 \ 2 scan0185 | |
| Letter from the Institution of Automobile Engineers proposing a meeting to discuss brake squeak and cylinder wear. | 5th Aug 1937 | Box 120 \ 2 scan0186 | |
| Letter arranging a meeting to discuss brake squeak and cylinder wear with The Institution of Automobile Engineers. | 6th Aug 1937 | Box 120 \ 2 scan0187 | |
| Letter from New-Hudson Ltd regarding an order for expander and adjuster units for the Girling Brake. | 12th Aug 1937 | Box 120 \ 2 scan0188 | |
| Letter from Bendix Products Corporation requesting further details on car specifications for brake systems. | 16th Aug 1937 | Box 120 \ 2 scan0189 | |
| Letter to Automotive Products Co. Ltd. acknowledging receipt of patent documents for a United States application and requesting the right to use it without fee. | 26th Aug 1937 | Box 120 \ 2 scan0190 | |
| Quotation from New-Hudson Ltd for 100 pairs of Expander and Adjuster units. | 26th Aug 1937 | Box 120 \ 2 scan0191 | |
| Letter from New-Hudson Ltd. regarding a quotation for Girling Brake parts for experimental purposes. | 26th Aug 1937 | Box 120 \ 2 scan0192 | |
| Letter to Automotive Products Co. Ltd. regarding patents for servo braking in reverse. | 27th Aug 1937 | Box 120 \ 2 scan0193 | |
| Parts list for rear expander and adjuster units. | 9th Aug 1937 | Box 120 \ 2 scan0194 | |
| Letter from Automotive Products Company Ltd. regarding a patent application for servo-braking. | 28th Aug 1937 | Box 120 \ 2 scan0195 | |
| Letter to Bendix Products Corporation providing vehicle and brake system specifications to investigate brake squeaks. | 28th Aug 1937 | Box 120 \ 2 scan0196 | |
| Experiments to stop brake squeaks, detailing issues with different brake types, linings, and friction coefficients. | 31th Aug 1937 | Box 120 \ 2 scan0197 | |
| Letter to The Automotive Products Co. Ltd. regarding papers and a patent reference. | 31th Aug 1937 | Box 120 \ 2 scan0198 | |
| Issues and solutions for common hand and foot brake shoes, focusing on thermal effects on different models. | 1st Sep 1937 | Box 120 \ 2 scan0199 | |
| Letter from Johannes Plum requesting the return of descriptive materials regarding brake improvements by Mr. Holger Schrøder. | 9th Sep 1937 | Box 120 \ 2 scan0200 | |
| Advice note from New-Hudson Ltd. detailing the dispatch of various brake components. | 10th Sep 1937 | Box 120 \ 2 scan0201 | |
| Letter from Bowden (Engineers) Ltd confirming cooperation on brake cable assemblies for a chassis. | 4th Sep 1937 | Box 120 \ 2 scan0202 | |
| Letter to Mr. J. Plum enclosing requested papers. | 11th Sep 1937 | Box 120 \ 2 scan0203 | |
| Letter to New-Hudson Ltd. regarding the completion and ordering of Bentley Girling type front brake drawings. | 11th Sep 1937 | Box 120 \ 2 scan0204 | |
| Letter from New-Hudson Ltd. acknowledging a letter and awaiting an official order. | 13th Sep 1937 | Box 120 \ 2 scan0205 | |
| Letter from Automotive Products Company regarding a joint patent application for a Booster Dual Braking System. | 21th Sep 1937 | Box 120 \ 2 scan0206 | |
| Letter from Automotive Products Company Ltd. enclosing their latest loose-leaf catalogue for Lockheed Brake Equipment and Thompson Tie Rods. | 28th Sep 1937 | Box 120 \ 2 scan0207 | |
| Letter from Automotive Products Company regarding a patent application for a Booster Dual Braking System. | 1st Oct 1937 | Box 120 \ 2 scan0208 | |
| Letter to Messrs. Hallam, Sleigh & Cheston Ltd. acknowledging receipt of their leaflet on an Auto-Static Brake. | 4th Oct 1937 | Box 120 \ 2 scan0209 | |
| Letter to The Automotive Products Co. Ltd. concerning the ownership of ideas and patents for a Booster Dual Braking System. | 5th Oct 1937 | Box 120 \ 2 scan0210 | |
| Page 2 of a letter requesting a free licence to manufacture without assigning rights. | 9th Oct 1937 | Box 120 \ 2 scan0211 | |
| Letter to The New Hudson Ltd. concerning an expander cone drawing for front brakes. | 9th Oct 1937 | Box 120 \ 2 scan0212 | |
| Letter from New Hudson Ltd. confirming the future use of a single cone type for front and rear brakes. | 11th Oct 1937 | Box 120 \ 2 scan0213 | |
| Letter to The Automotive Products Co. Ltd. requesting prints of cylinder parts and clarification on a claimed brake torque increase. | 12th Oct 1937 | Box 120 \ 2 scan0214 | |
| Letter from Automotive Products Company regarding prints and improvements to braking system components. | 13th Oct 1937 | Box 120 \ 2 scan0215 | |
| Letter to New Hudson Ltd. requesting layout drawings for a 12' Girling brake assembly and automatic adjuster. | 15th Oct 1937 | Box 120 \ 2 scan0216 | |
| Letter from New-Hudson Ltd. concerning the supply of blueprints for Girling brake assemblies. | 16th Oct 1937 | Box 120 \ 2 scan0217 | |
| Letter to The New-Hudson Co. Ltd. regarding a fitment issue with rubber and leather dust covers for brakes. | 18th Oct 1937 | Box 120 \ 2 scan0218 | |
| Request for a covering order for six Halo 3.L servo linings similar to part G.82827, noting a previous order is outstanding. | 19th Oct 1937 | Box 120 \ 2 scan0219 | |
| Letter to New Hudson Ltd. regarding a connecting link between wedge and brake rods. | 19th Oct 1937 | Box 120 \ 2 scan0220 | |
| Letter from New Hudson Ltd. regarding the supply of six sets of original leather dust covers. | 20th Oct 1937 | Box 120 \ 2 scan0221 | |
| Letter from New-Hudson Ltd acknowledging receipt of a letter and a print of a swivel. | 20th Oct 1937 | Box 120 \ 2 scan0222 | |
| Requesting the return of a sample model 3 shoe brake to its owner, The Gandy Belt Mfg. Co. Ltd. | 27th Oct 1937 | Box 120 \ 2 scan0223 | |
| Mr. Wilmot Breeden's car, which has brake squeaks, and arranging for the best lining to be fitted. | 28th Oct 1937 | Box 120 \ 2 scan0224 | |
| Letter to The Gandy Belt Mfg. Co. Ltd. regarding the examination of a 3 shoe brake. | 28th Oct 1937 | Box 120 \ 2 scan0225 | |
| Letter from Automotive Products Company regarding a patent application for a Booster Dual Braking System. | 28th Oct 1937 | Box 120 \ 2 scan0226 | |
| Order for Duckham's K.G.20 grease for use on brake systems in the Experimental Dept. | 1st Nov 1937 | Box 120 \ 2 scan0227 | |
| Letter to The New-Huddon Ltd. regarding the supply and specification of expander plungers for Girling brakes. | 1st Nov 1937 | Box 120 \ 2 scan0228 | |
| Letter from New-Hudson Ltd. concerning the supply and modification of brake components. | 2nd Nov 1937 | Box 120 \ 2 scan0229 | |
| Letter from British Belting & Asbestos Ltd. discussing experiments with lead alloy. | 3rd Nov 1937 | Box 120 \ 2 scan0230 | |
| Letter from New-Hudson Ltd. enclosing arrangement drawings for new headed retaining pins for the Girling Brake expander assembly. | 4th Nov 1937 | Box 120 \ 2 scan0231 | |
| Change in the type of grease to be used for brake linkages. | 8th Nov 1937 | Box 120 \ 2 scan0232 | |
| Letter to New-Hudson Ltd. requesting modifications to pins on expander units. | 9th Nov 1937 | Box 120 \ 2 scan0233 | |
| Letter from New-Hudson Ltd. confirming the exact diameter of a Headed Pin and that future supplies will be made as per drawing GA/G 955/6. | 10th Nov 1937 | Box 120 \ 2 scan0234 | |
| Inquiry to Durion Ltd. regarding the suitability of a porous aluminium alloy called Sattler Metal for two different bearing applications. | 11th Nov 1937 | Box 120 \ 2 scan0235 | |
| Letter from British Belting & Asbestos Ltd acknowledging a prior letter and advising of a follow-up after the Transport Show. | 11th Nov 1937 | Box 120 \ 2 scan0236 | |
| Letter from New-Hudson Ltd regarding the production of Girling Brake components and tooling. | 16th Nov 1937 | Box 120 \ 2 scan0237 | |
| Letter from Bendix Products Corporation discussing car weight, brake sizes, and potential causes for brake drum issues like squeal and bell mouthing. | 16th Nov 1937 | Box 120 \ 2 scan0238 | |
| From Mr. Gallup to Mr. Robotham discussing brake design regarding proportion, rigidity of parts, and lining. | 16th Nov 1937 | Box 120 \ 2 scan0239 | |
| Letter from Bendix Products Corporation discussing the specifications and application of different brake linings. | 16th Nov 1937 | Box 120 \ 2 scan0240 | |
| Letter to New-Hudson Ltd. regarding the return and machining of plungers. | 17th Nov 1937 | Box 120 \ 2 scan0241 | |
| Letter from Automotive Products Company Ltd regarding a detail drawing for Casting Part No: 858/3. | 17th Nov 1937 | Box 120 \ 2 scan0242 | |
| Letter to New-Hudson Ltd. regarding a delay in placing an order for brakes due to required modifications and testing. | 18th Nov 1937 | Box 120 \ 2 scan0243 | |
| Letter from New-Hudson Ltd. concerning incorrectly machined plungers being returned for rectification. | 18th Nov 1937 | Box 120 \ 2 scan0244 | |
| Letter to Hudson Co. Ltd. requesting prints and drawings for replacement Expander Plungers. | 19th Nov 1937 | Box 120 \ 2 scan0245 | |
| Letter from New-Hudson Ltd regarding blueprints and specifications for Girling brake components. | 22th Nov 1937 | Box 120 \ 2 scan0246 | |
| Letter requesting a cost quotation for Lockheed brake equipment from The Automotive Products Co. Ltd. | 30th Nov 1937 | Box 120 \ 2 scan0247 | |
| Letter to The New-Hudson Ltd. disputing an invoice for £4.0.0d regarding unsafe replacement plungers. | 1st Dec 1937 | Box 120 \ 2 scan0248 | |
| Testing two bearing alloys for positions with intermittent or scanty lubrication. | 2nd Dec 1937 | Box 120 \ 2 scan0249 | |
| Letter to The New Hudson Co.Ltd. to discuss a quotation for Girling expanders and adjusters which are 50% higher than standard prices. | 4th Dec 1937 | Box 120 \ 2 scan0250 | |
| Letter from New-Hudson Ltd. confirming an appointment with Mr. Martindale to discuss the prices of Girling Brakes. | 6th Dec 1937 | Box 120 \ 2 scan0251 | |
| Letter to The New-Hudson Ltd. confirming a visit to Birmingham. | 6th Dec 1937 | Box 120 \ 2 scan0252 | |
| Letter to The New Hudson Co.Ltd. regarding modifications to Girling adjusters. | 8th Dec 1937 | Box 120 \ 2 scan0253 | |
| Letter to The Automotive Products Co. Ltd. chasing a missing drawing and requesting information on other parts. | 9th Dec 1937 | Box 120 \ 2 scan0254 | |
| Letter from Automotive Products Company Ltd enclosing prints for Single Point Adjuster Parts. | 11th Dec 1937 | Box 120 \ 2 scan0255 | |
| Letter from Automotive Products Company Ltd regarding the dispatch of prints and a follow-up on drawings. | 11th Dec 1937 | Box 120 \ 2 scan0256 | |
| Letter to a supplier regarding incorrectly stencilled servo discs and asking for material confirmation. | 13th Dec 1937 | Box 120 \ 2 scan0257 | |
| Letter to Messrs Durion Ltd. chasing a decision on the production of four bushes made from Sattler Metal. | 15th Dec 1937 | Box 120 \ 2 scan0258 | |
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