| Description | Date | Identifier | |
| Letter from Leyland Motors to E. Hives inviting him for a visit and expressing interest in the new 2½ litre Bentley chassis. | 8th Sep 1933 | Box 128 \ 1 scan0149 | |
| Letter from coachbuilder Barker & Co. regarding information on a new Reo and the availability of a car. | 9th Sep 1933 | Box 128 \ 1 scan0150 | |
| Visit to Leyland Motors Ltd. detailing their use of magnesium castings and hardened crankshafts. | 26th Sep 1935 | Box 128 \ 1 scan0151 | |
| Engineering practices at Leyland, covering forged aluminium rods, compression ignition, torque converters, and valves. | 26th Sep 1933 | Box 128 \ 1 scan0152 | |
| Use of carbon disc glands in water pumps, as seen on Leyland vehicles, and recommending their adoption. | 26th Sep 1938 | Box 128 \ 1 scan0153 | |
| Letter to F.L. Manning of Messrs Barker & Co Ltd concerning the trial of Reo and Lagonda vehicles, and feedback on a 'fire engine'. | 27th Sep 1933 | Box 128 \ 1 scan0154 | |
| Letter to F.L. Manning of Barker & Co. Ltd. concerning an automatic gear shift and Paris. | 10th Oct 1933 | Box 128 \ 1 scan0155 | |
| Short road test and evaluation of a 4½ Litre Lagonda vehicle, comparing it to a Bentley. | 10th Oct 1933 | Box 128 \ 1 scan0156 | |
| The automatic gear change system fitted to a Reo car. | 10th Oct 1933 | Box 128 \ 1 scan0157 | |
| Road test report on a supercharged Mercedes, from the 1933 Paris Salon, comparing it to a Bentley and P.II. | 25th Oct 1933 | Box 128 \ 1 scan0158 | |
| Illustrations of a Mercedes differential and rear axle assembly. | 25th Oct 1933 | Box 128 \ 1 scan0159 | |
| Performance review and comparison of the 4 Litre Delage and 12 Cylinder Hispano models. | 26th Oct 1933 | Box 128 \ 1 scan0160 | |
| Invitation from Morgan Hastings Ltd. to the Experimental Department to visit their stand at the Commercial Show. | 26th Oct 1933 | Box 128 \ 1 scan0161 | |
| The De Normanville gearbox, comparing it to the Wilson transmission and outlining its drawbacks. | 3rd Nov 1933 | Box 128 \ 1 scan0162 | |
| Issues with a vehicle's transmission and engine behaviour during testing. | 3rd Nov 1933 | Box 128 \ 1 scan0163 | |
| Letter requesting to borrow a competitor's car (Nash, Chrysler, Packard or Studebaker) for an engine test. | 3rd Jan 1934 | Box 128 \ 1 scan0164 | |
| Cover note for Report No. 6997 on compression ratios for American 1934 cars. | 9th Mar 1934 | Box 128 \ 1 scan0165 | |
| Committee report comparing the compression ratios of American cars for 1933 and 1934. | 1st Jan 1934 | Box 128 \ 1 scan0166 | |
| American and Daimler developments in cylinder bore accuracy and piston design for improved engine performance. | 14th Mar 1934 | Box 128 \ 1 scan0167 | |
| Daimler's new Straight '8' chassis, their move away from sleeve valve engines, and issues with gear lubrication. | 14th Mar 1934 | Box 128 \ 1 scan0168 | |
| American and Daimler developments and the accuracy of cylinder bores. | 15th Mar 1934 | Box 128 \ 1 scan0169 | |
| Research document detailing the specifications of rear-engined 'Mercedes' and 'Hansa' cars. | 1st Feb 1934 | Box 128 \ 1 scan0170 | |
| Test drive report and comparison of a 4.5-litre Lagonda car with a Bentley. | 10th Apr 1934 | Box 128 \ 1 scan0171 | |
| From 'Sg.' to 'Hs.' discussing standardising under-bonnet Lucas lights and an instruction plate for lubricating oils. | 10th Apr 1934 | Box 128 \ 1 scan0172 | |
| Requesting to test drive several cars including Mr. Feddon's car, a new La Salle, and a new Daimler. | 28th May 1934 | Box 128 \ 1 scan0173 | |
| Requesting permission to sell a Morris Cowley company car, listing cash offers received. | 2nd Aug 1934 | Box 128 \ 1 scan0174 | |
| Review of Citroen and Mercedes models from the Olympia Show for potential purchase and research. | 23th Oct 1934 | Box 128 \ 1 scan0175 | |
| Straight-eight carburation, referencing Buick's experience and recommending the purchase of an 8-cylinder car for Wraith development. | 23th Oct 1934 | Box 128 \ 1 scan0176 | |
| Technical report on a visit to E.R.A. detailing their racing car and engine specifications. | 12th Nov 1934 | Box 128 \ 1 scan0177 | |
| The design and performance of engine and gearbox components including connecting rods, crankshaft, carburetter, and supercharger. | 12th Nov 1934 | Box 128 \ 1 scan0178 | |
| Axle, suspension, and tyre specifications, including future design considerations. | 4th May 1935 | Box 128 \ 1 scan0179 | |
| Comparative analysis of vehicle component weights to identify potential weight-saving opportunities. | 4th May 1935 | Box 128 \ 1 scan0180 | |
| Detailed comparison of Bentley bodies against American cars like the Pontiac, Graham, and Terraplane. | 4th Mar 1935 | Box 128 \ 1 scan0181 | |
| Comparison of body and chassis weights for American and Bentley vehicles. | 4th Mar 1935 | Box 128 \ 1 scan0182 | |
| Weight comparison of components for a Pontiac and a Standard Saloon. | 4th Jun 1935 | Box 128 \ 1 scan0183 | |
| List of weights for various components of Graham-Paige and Terraplane car bodies. | 4th Mar 1935 | Box 128 \ 1 scan0184 | |
| Performance of the Hotchkiss and Packard 120, with a request to arrange testing. | 5th Apr 1935 | Box 128 \ 1 scan0185 | |
| Letter arranging a comparative test drive between a 3½-litre Hotchkiss Paris-Nice model and a Bentley. | 11th Apr 1935 | Box 128 \ 1 scan0186 | |
| Arranging a competitive vehicle trial against a 3 1/2 litre Hotchkiss Paris-Nice Model at Brooklands Track. | 12th Apr 1935 | Box 128 \ 1 scan0187 | |
| Arranging a trial run of a 3.5-litre Hotchkiss car at Brooklands. | 15th Apr 1935 | Box 128 \ 1 scan0188 | |
| The weight of a Hotchkiss, Paris-Nice model car. | 8th Apr 1935 | Box 128 \ 1 scan0189 | |
| Weighbridge ticket from Michelin Tyre Co., Ltd. recording the weight of a vehicle. | 24th Apr 1935 | Box 128 \ 1 scan0190 | |
| Comparative performance and handling review of a 3 1/2 Litre Hotchkiss against a Bentley. | 24th Apr 1935 | Box 128 \ 1 scan0191 | |
| Summary of a competitor car's performance compared to the Bentley, concluding that the Bentley needs improvement. | 24th Apr 1935 | Box 128 \ 1 scan0192 | |
| Autocar acceleration and performance figures comparing a Bentley and a Hotchkiss. | 24th Apr 1935 | Box 128 \ 1 scan0193 | |
| List of vehicle weights for four different car models. | 24th Apr 1935 | Box 128 \ 1 scan0194 | |
| Visit to E.R.A.'s, detailing their engine development, supercharger performance, and fuel mixtures. | 3rd Jul 1935 | Box 128 \ 1 scan0195 | |
| Page 2 of a report detailing car modifications and performance observations from Mays & Co. | 12th Sep 1935 | Box 128 \ 1 scan0196 | |
| Letter to A.C. Bertelli of Aston Martin Ltd. regarding collaborative brake drum testing. | 12th Sep 1935 | Box 128 \ 1 scan0197 | |
| Specifications of a Maserati V.8 Racer engine. | 8th Oct 1935 | Box 128 \ 1 scan0198 | |
| Inquiry to R. Railton of Thomson & Taylor regarding a decelerating control device. | 8th Oct 1935 | Box 128 \ 1 scan0199 | |
| Letter to Aston Martin Ltd. regarding a damaged aluminium drum during testing and a request to purchase a replacement. | 11th Oct 1935 | Box 128 \ 1 scan0200 | |
| Letter from Thomson & Taylor discussing a throttle dash-pot control and transmission clank on Railton cars. | 12th Oct 1935 | Box 128 \ 1 scan0201 | |
| Letter to Messrs. Thomson & Taylor (Brooklands) Ltd. acknowledging correspondence and returning a print. | 16th Oct 1935 | Box 128 \ 1 scan0202 | |
| Letter to R. Railton of Thomson & Taylor discussing a drawing of a contrivance and arranging a meeting. | 18th Oct 1935 | Box 128 \ 1 scan0203 | |
| Letter to Aston Martin Ltd. regarding brake drums and engine power figures. | 31th Oct 1935 | Box 128 \ 1 scan0204 | |
| Covering order request to Aston Martin Ltd. for two Aluminium-steel Composite Brake Drums. | 2nd Nov 1935 | Box 128 \ 1 scan0205 | |
| Unrecorded delivery of brake drums from Aston Martin Ltd. | 19th Nov 1935 | Box 128 \ 1 scan0206 | |
| Request to book in a steel brake drum and aluminium brake drums against a purchase order. | 22th Nov 1935 | Box 128 \ 1 scan0207 | |
| Arranging for Mr. Raymond Mays to be shown around to extract information on sporting car problems. | 27th Nov 1935 | Box 128 \ 1 scan0208 | |
| Typed internal memorandum regarding a meeting with Mr. Raymond Mays. | 26th Nov 1935 | Box 128 \ 1 scan0209 | |
| Statistics on American car sales from 1930 to 1935. | 10th Dec 1935 | Box 128 \ 1 scan0210 | |
| Summary of road test performance results for Alvis, Bentley, Buick, Chevrolet, Hotchkiss, and Lagonda vehicles. | 10th Mar 1936 | Box 128 \ 1 scan0211 | |
| Request to arrange the return of three loaned 14' brake drums to Aston Martin Ltd. | 2nd Apr 1936 | Box 128 \ 1 scan0212 | |
| Letter to R. Railton enquiring about axle control, torque arms, and front spring deflection on the Railton car. | 18th Apr 1936 | Box 128 \ 1 scan0213 | |
| Letter from Thomson & Taylor discussing axle control, front spring deflection, and patent oil seals. | 21th Apr 1936 | Box 128 \ 1 scan0214 | |
| Letter requesting the sourcing of Citroen parts for a right-hand drive vehicle. | 28th Apr 1936 | Box 128 \ 1 scan0215 | |
| Letter discussing a cut-short lunch engagement and the acquisition of Citroen parts. | 28th Apr 1936 | Box 128 \ 1 scan0216 | |
| Letter discussing the return of a Citroen parts list and requesting an updated version with prices for a 15 HP model. | 4th May 1936 | Box 128 \ 1 scan0217 | |
| Correspondence about procuring Citroen front suspension parts in Paris for shipment to England. | 4th May 1936 | Box 128 \ 1 scan0218 | |
| Letter to W. Parsons in Paris regarding a parts list and the need for front suspension shock absorbers. | 4th May 1936 | Box 128 \ 1 scan0219 | |
| Telex message instructing to send parts to an address in Paris. | 5th May 1936 | Box 128 \ 1 scan0220 | |
| Letter to W. Parsons in Paris confirming a wire has been sent regarding parts, with instructions for billing. | 5th May 1936 | Box 128 \ 1 scan0221 | |
| Letter from Duff Morgan Ltd regarding the sending of a Citroen Spare Parts List. | 7th May 1936 | Box 128 \ 1 scan0222 | |
| Letter from the Experimental Department regarding a Citroen spare parts list and enclosing a postal order. | 12th May 1936 | Box 128 \ 1 scan0223 | |
| Letter to W.W. Parsons in Paris regarding payment for and collection of Citroen parts. | 18th May 1936 | Box 128 \ 1 scan0224 | |
| Follow-up letter regarding the purchase and shipment of Citroen front suspension parts for Bentley development. | 18th May 1936 | Box 128 \ 1 scan0225 | |
| The testing of Citroen cars, focusing on their torsion bar suspension, ride quality, and weight. | 21th May 1936 | Box 128 \ 1 scan0226 | |
| Letter from Cabinet Parsons regarding an order for parts, a delivery delay, and shipping arrangements. | 22th May 1936 | Box 128 \ 1 scan0227 | |
| Alternative independent suspension programmes for Bentley vehicles. | 29th May 1936 | Box 128 \ 1 scan0228 | |
| Feasibility and potential development of a torsion bar suspension system, referencing Citroen and Packard models. | 7th Apr 1936 | Box 128 \ 1 scan0229 | |
| Delivery of Citroen front end suspension parts and an update on an oil seal job for a Trials car. | 15th Jun 1936 | Box 128 \ 1 scan0230 | |
| Delay in obtaining Citroen front end suspension parts due to a strike. | 17th Jun 1936 | Box 128 \ 1 scan0231 | |
| Quote from Paris for various car parts, totalling 4,731 Francs. | 22th Jun 1936 | Box 128 \ 1 scan0232 | |
| Supply issues and potential sourcing of Citroen front end suspension parts. | 22th Jun 1936 | Box 128 \ 1 scan0233 | |
| Letter regarding the delayed delivery and payment arrangements for Citroen Front Suspension Parts. | 22th May 1936 | Box 128 \ 1 scan0234 | |
| Letter from Duff Morgan Ltd to Mr. Leslie regarding information on delivery and prices for parts. | 26th Jun 1936 | Box 128 \ 1 scan0235 | |
| Priced parts list for front axle and complete steering gear components. | 27th Jun 1936 | Box 128 \ 1 scan0236 | |
| Letter to Duff Morgan Ltd. confirming a telephone conversation and requesting a quote for 15 HP Citroen parts. | 27th Jun 1936 | Box 128 \ 1 scan0237 | |
| The concluding page of a typed letter. | 27th Jun 1936 | Box 128 \ 1 scan0238 | |
| Telegram advising to make no commitments due to a delay and hold-up regarding Citroen parts. | 29th Jun 1936 | Box 128 \ 1 scan0239 | |
| Letter regarding the effort to source Citroen suspension parts in England, referencing delays and a wire sent to manage commitments. | 29th Jun 1936 | Box 128 \ 1 scan0240 | |
| Correspondence regarding the cancellation of an order for Citroen front end suspension parts. | 30th Jun 1936 | Box 128 \ 1 scan0241 | |
| Requesting an order be placed with Messrs. Duff Morgan Ltd. for a 15 HP Citroen front end suspension and steering gear. | 30th Jun 1936 | Box 128 \ 1 scan0242 | |
| Letter regarding the inability to procure right-hand Citroën parts, but the availability of left-hand steering parts. | 1st Jul 1936 | Box 128 \ 1 scan0243 | |
| Letter discussing the experimental use of Citroen suspension parts on a Bentley and coordinating with Michelin. | 6th Jul 1936 | Box 128 \ 1 scan0244 | |
| Photograph of the 'Blue Bird' land speed record car parked on a city street. | 16th Jul 1936 | Box 128 \ 1 scan0245 | |
| Letter discussing sourcing Citroen parts and investigating the performance gains from streamlining on a Bugatti. | 16th Jul 1936 | Box 128 \ 1 scan0246 | |
| Acquisition of Citroen parts and travel arrangements. | 17th Jul 1936 | Box 128 \ 1 scan0247 | |
| Letter detailing the procurement of Front-Wheel Drive Citroën parts from Mr. Michelin. | 24th Jul 1936 | Box 128 \ 1 scan0248 | |
| | | | |
