| Description | Date | Identifier | |
| Technical description of carburetter operation, mixture balance, and internal mechanisms. | 15th Jan 1935 | Box 124 \ 3 scan0293 | |
| Page describing the slow running arrangement and disadvantages of a carburetter. | 15th Jan 1935 | Box 124 \ 3 scan0294 | |
| Plan view and cross-section diagram of a Marvel Twin-Downdraught Carburetter for a Buick 8. | 15th Jan 1935 | Box 124 \ 3 scan0295 | |
| Test report on a Buick (Marvel) carburetter comparing fuel consumption and performance. | 18th Jan 1935 | Box 124 \ 3 scan0296 | |
| Petrol consumption test on a Buick carburetter and its potential suitability for the Wraith model. | 18th Jan 1935 | Box 124 \ 3 scan0297 | |
| Letter to General Motors requesting the purchase of a Stromberg Carburetter for a Buick. | 15th Jan 1935 | Box 124 \ 3 scan0298 | |
| Petrol consumption test on a Buick carburetter and its potential for use on the Wraith model. | 18th Jan 1935 | Box 124 \ 3 scan0299 | |
| Test report on a Buick (Marvel) carburetter, comparing fuel consumption with the accelerator pump connected and disconnected. | 18th Jan 1935 | Box 124 \ 3 scan0300 | |
| Test report and comparative analysis of a Buick Straight Eight car, noting adverse comments. | 21th Jan 1935 | Box 124 \ 3 scan0301 | |
| List of observed vehicle faults and performance characteristics from a road test. | 21th Jan 1935 | Box 124 \ 3 scan0302 | |
| The springing and synchro-mesh performance of a 25 HP model. | 21th Jan 1935 | Box 124 \ 3 scan0303 | |
| Laboratory analysis report on the material composition of a Buick Hot Spot Heat Control Valve. | 24th Jan 1935 | Box 124 \ 3 scan0304 | |
| Materials and performance of a Buick Hot Spot Heat Control Valve. | 28th Jan 1935 | Box 124 \ 3 scan0305 | |
| Specification sheet detailing the material composition percentages for Flap Valve & Bushes and Spindle parts. | 25th Jan 1935 | Box 124 \ 3 scan0306 | |
| Short memo returning a document regarding a Buick car. | 25th Jan 1935 | Box 124 \ 3 scan0307 | |
| Test drive report and impressions of a Series 40 Buick. | 26th Nov 1934 | Box 124 \ 3 scan0308 | |
| Observations and critiques of a vehicle's features, including steering, lighting, and visibility. | 27th Nov 1934 | Box 124 \ 3 scan0309 | |
| Letter to Buick Motor Co. requesting information on the wheel geometry and movement of the 'Century' model. | 15th Jul 1936 | Box 124 \ 3 scan0310 | |
| Letter to Cadillac about a Buick service manual and interest in a car's handling characteristics. | 15th Jul 1936 | Box 124 \ 3 scan0311 | |
| Comparative graph of Brake Mean Effective Pressure curves for various engines. | 15th Feb 1935 | Box 124 \ 3 scan0312 | |
| Letter to Lendrum & Hartman Ltd. requesting Buick door stops and a jack for testing purposes. | 15th Feb 1935 | Box 124 \ 3 scan0313 | |
| Letter from Lendrum & Hartman Ltd regarding the availability of door stops and a replacement jack. | 18th Feb 1935 | Box 124 \ 3 scan0314 | |
| Letter from Lendrum & Hartman Limited discussing engine tappet adjustments and low-speed performance. | 18th Feb 1935 | Box 124 \ 3 scan0315 | |
| Letter to Lendrum & Hartman Ltd. requesting door stops and a series 50 Jack for examination. | 19th Feb 1935 | Box 124 \ 3 scan0316 | |
| Investigation into the reasons why the Buick transmission is free from chunking noises when taking up the drive. | 22th Feb 1935 | Box 124 \ 3 scan0317 | |
| Report investigating a 'chunking' noise and metallic rattle originating from the drivetrain and hubs. | 22th Feb 1935 | Box 124 \ 3 scan0318 | |
| Blueprint of a Buick Flywheel with specifications. | 20th Feb 1935 | Box 124 \ 3 scan0319 | |
| Procurement of two door stops and one Buick Jack from Messrs. Lendrum & Hartman. | 23th Feb 1935 | Box 124 \ 3 scan0320 | |
| The dimensions of a removed Buick Flywheel, noting an attached blueprint. | 23th Feb 1935 | Box 124 \ 3 scan0321 | |
| Blueprint drawing of a Buick Flywheel with section view and dimensions. | 20th Feb 1935 | Box 124 \ 3 scan0322 | |
| Investigation into the cause of chunking noises in the drive, comparing a Buick with a 5-B-IV model. | 26th Feb 1935 | Box 124 \ 3 scan0323 | |
| Letter to Lendrum & Hartman Ltd. clarifying a request for 'Door Dovetails' for a Series '40' Buick. | 27th Feb 1935 | Box 124 \ 3 scan0324 | |
| Proposing the use of standard Borg & Beck clutches over in-house designs for cost and quality benefits. | 27th Feb 1935 | Box 124 \ 3 scan0325 | |
| Letter regarding difficulties in sourcing clutch parts for a Buick car. | 1st Mar 1935 | Box 124 \ 3 scan0326 | |
| Letter from Lendrum & Hartman Ltd confirming the dispatch and dimensions of clutch linings for a Series 40 Buick. | 2nd Mar 1935 | Box 124 \ 3 scan0327 | |
| To the Order Office requesting payment of an invoice from Lendrum & Hartman for Buick clutch parts. | 4th Mar 1935 | Box 124 \ 3 scan0328 | |
| Letter from Lendrum & Hartman Ltd regarding the supply of Door Dovetails and Door Stops. | 4th Mar 1935 | Box 124 \ 3 scan0329 | |
| Invoice from Lendrum & Hartman Ltd. for Buick parts and a request for payment authorization. | 5th Mar 1935 | Box 124 \ 3 scan0330 | |
| Technical specifications and analysis of a Buick Borg & Beck clutch. | 5th Mar 1935 | Box 124 \ 3 scan0331 | |
| The friction load test results for a Buick Clutch's spring driving plate. | 5th Mar 1935 | Box 124 \ 3 scan0332 | |
| Sketch of a Buick spring plate. | 6th Mar 1935 | Box 124 \ 3 scan0333 | |
| Letter to a supplier, Lendrum & Hartman Ltd, regarding the receipt of dovetails and the cancellation of an order for door stops. | 6th Mar 1935 | Box 124 \ 3 scan0334 | |
| Requesting to pass the invoices for parts detailed in a separate reference. | 8th Mar 1935 | Box 124 \ 3 scan0335 | |
| Invoice from Lendrum & Hartman, Ltd. for Buick clutch parts. | 8th Mar 1935 | Box 124 \ 3 scan0336 | |
| Authorising payment for an invoice from Messrs. Lendrum & Hartman for Buick clutch parts. | 11th Mar 1935 | Box 124 \ 3 scan0337 | |
| Invoice and customs clearance for a Buick cylinder head arriving on the 'American Merchant'. | 11th Mar 1935 | Box 124 \ 3 scan0338 | |
| Comparison of wheel and tyre weights and ground clearances for Bentley, Buick, Graham, and Essex cars. | 14th Mar 1935 | Box 124 \ 3 scan0339 | |
| Technical drawing of the water passage arrangement in a Buick S40 cylinder block. | 21th Mar 1935 | Box 124 \ 3 scan0340 | |
| Drawing showing the cylinder spacing and bore dimensions for the Wraith engine. | 19th Mar 1935 | Box 124 \ 3 scan0341 | |
| Weight savings achievable by using smaller wheels and tyres on cars. | 19th Mar 1935 | Box 124 \ 3 scan0342 | |
| Comparative data on wheel and tyre weights and ground clearances for various car models. | 14th Mar 1935 | Box 124 \ 3 scan0343 | |
| Comparing the weights of wheels and tyres for various car models. | 19th May 1935 | Box 124 \ 3 scan0344 | |
| Invoice from Buick Motor Co. for a cylinder head intake manifold and Stromberg carburettor. | 22th Mar 1935 | Box 124 \ 3 scan0345 | |
| Preliminary particulars and comparison of a Series 40 Buick connecting rod and piston. | 27th Mar 1935 | Box 124 \ 3 scan0346 | |
| Blueprint diagram with dimensions for a Buick piston. | 22th Mar 1935 | Box 124 \ 3 scan0347 | |
| Technical drawing of a Buick connecting rod. | 22th Mar 1935 | Box 124 \ 3 scan0348 | |
| To the Order Office regarding an invoice from General Motors for a Buick cylinder head and carburetter. | 30th Mar 1935 | Box 124 \ 3 scan0349 | |
| Requesting the measurement of hot spot temperatures on a Buick and a Phantom using thermocouples for comparison with a mock-up Spectre system. | 9th Apr 1935 | Box 124 \ 3 scan0350 | |
| Technical memo discussing suggestions for reducing chunking in the gearbox drive. | 9th Apr 1935 | Box 124 \ 3 scan0351 | |
| Gear design, lubrication, gearbox construction, and propeller shaft couplings, including comparisons with Cadillac. | 9th Apr 1935 | Box 124 \ 3 scan0352 | |
| Clamping coupling methods and shaft spline clearances, with comparisons to other manufacturers. | 9th Apr 1935 | Box 124 \ 3 scan0353 | |
| Buick exhaust hot-spot temperature tests. | 26th Apr 1935 | Box 124 \ 3 scan0354 | |
| Pending invoice from the Buick Motor Co. awaiting a covering order. | 15th May 1935 | Box 124 \ 3 scan0355 | |
| Requesting a covering order for a cylinder head intake manifold and Stromberg carburetter from Buick Motor Co. | 16th May 1935 | Box 124 \ 3 scan0356 | |
| Internal request for an official order for Buick brake shoes, linings, and an exhaust manifold. | 21th May 1935 | Box 124 \ 3 scan0357 | |
| General schedule of car road work tests, detailing work on carburettors, brakes, and other systems. | 1st Jun 1936 | Box 124 \ 3 scan0358 | |
| Typed memorandum detailing tasks and tests for various vehicle models and components. | 3rd Jun 1935 | Box 124 \ 3 scan0359 | |
| The 20/25 Four Port Induction System, discussing test results and proposing the use of a Buick heat control body. | 3rd Jun 1935 | Box 124 \ 3 scan0360 | |
| Requesting an official order be passed for work carried out on a Buick car. | 13th Jul 1935 | Box 124 \ 3 scan0361 | |
| Requesting the replacement of a faulty accelerator starter with a dashboard starter button on a Buick car. | 9th Oct 1935 | Box 124 \ 3 scan0362 | |
| List of tests carried out to overcome drive to overrun transmission chunking. | 18th Oct 1935 | Box 124 \ 3 scan0363 | |
| Danger of reducing comfort by cheapening the front suspension. | 18th Oct 1935 | Box 124 \ 3 scan0364 | |
| Test report detailing the results of component modifications on Buick, 30-EX, and 32-EX cars. | 18th Oct 1935 | Box 124 \ 3 scan0365 | |
| Outlining potential improvements and considerations for a 6-cylinder engine. | 18th Oct 1935 | Box 124 \ 3 scan0366 | |
| Test report detailing issues with chunking noises on car model 30-EX, related to clutch splines and gearbox slack. | 18th Oct 1935 | Box 124 \ 3 scan0367 | |
| And questions regarding 'Chunking', swash plate engines, and gear ratios. | 31th Oct 1935 | Box 124 \ 3 scan0368 | |
| Request to obtain a complete gearbox for a Buick car as the original was scrapped during experiments on transmission clanking. | 31th Oct 1935 | Box 124 \ 3 scan0369 | |
| Order of a complete gearbox for a Buick, requesting confirmation of chassis and series numbers. | 2nd Nov 1935 | Box 124 \ 3 scan0370 | |
| Identifying a Buick car by its series, model, and style numbers. | 5th Nov 1935 | Box 124 \ 3 scan0371 | |
| The torsional flexibility measurement of a Buick transmission system and comparison with a Spectre rear axle. | 25th Nov 1935 | Box 124 \ 3 scan0372 | |
| Request to dismantle a Buick car to examine and weigh its chassis components. | 10th Dec 1935 | Box 124 \ 3 scan0373 | |
| Inquiring about the delivery status of a Buick gearbox from Lendrum and Hartman. | 11th Dec 1935 | Box 124 \ 3 scan0374 | |
| The stripping and weight analysis of a Buick car for comparative purposes. | 11th Dec 1935 | Box 124 \ 3 scan0375 | |
| Thank-you note acknowledging the receipt of a Buick gearbox. | 31th Dec 1935 | Box 124 \ 3 scan0376 | |
| Invoice from Lendrum & Hartman Ltd. for Buick transmission parts. | 3rd Jan 1936 | Box 124 \ 3 scan0377 | |
| Requesting the fitting of a new gearbox and work on a starter ring for a Buick engine rebuild. | 6th Jan 1936 | Box 124 \ 3 scan0378 | |
| The purchase of a Buick transmission assembly and parts from Zenith Carburetter Co. | 7th Jan 1936 | Box 124 \ 3 scan0379 | |
| Order of washers and parts for a Buick from Messrs. Lendrum & Hartman. | 9th Jan 1936 | Box 124 \ 3 scan0380 | |
| The dispatch of Buick parts to be used as patterns for ordering new components. | 9th Jan 1936 | Box 124 \ 3 scan0381 | |
| Internal request to order various washers and parts for a Buick from Messrs. Lendrum & Hartman. | 9th Jan 1936 | Box 124 \ 3 scan0382 | |
| Letter to Messrs Lendrum & Hartman chasing an order for Buick clutch parts. | 15th Jan 1936 | Box 124 \ 3 scan0383 | |
| List of weights and capacities for various Buick components. | 18th Jan 1936 | Box 124 \ 3 scan0384 | |
| Typed list of weights for various Buick car components in pounds and ounces. | 18th Jan 1936 | Box 124 \ 3 scan0385 | |
| List of vehicle component weights in pounds and ounces. | 18th Jan 1936 | Box 124 \ 3 scan0386 | |
| List of vehicle components and their corresponding weights. | 18th Jan 1936 | Box 124 \ 3 scan0387 | |
| Weight specification for a complete car with fluids and two spare wheels. | 18th Jan 1936 | Box 124 \ 3 scan0388 | |
| Comparison of component weights for Phantom III, 20/25, Bentley, and Buick chassis. | 11th Feb 1936 | Box 124 \ 3 scan0389 | |
| Comparative table of component weights for various car models including Phantom III, 20/25, Bentley, and Buick. | 11th Feb 1936 | Box 124 \ 3 scan0390 | |
| Table comparing weights of various car components across four different vehicle models. | 11th Feb 1936 | Box 124 \ 3 scan0391 | |
| Weight comparison table for different sections of Ph.III, 20/25, Bentley, and Buick cars. | 11th Feb 1936 | Box 124 \ 3 scan0392 | |
| | | | |
