| Description | Date | Identifier | |
| Letter from Lendrum & Hartman Ltd. to W. Cowen discussing the procurement and specifications of a Buick model. | 30th Aug 1937 | Box 125 \ 3 scan0009 | |
| Letter from Buick Motor Company returning a mistakenly attached enclosure. | 31th Aug 1937 | Box 125 \ 3 scan0010 | |
| Letter to the Chief Engineer of Buick Motor Company regarding an order for a 1938 Century Series 60 saloon. | 1st Sep 1937 | Box 125 \ 3 scan0011 | |
| Outlining specifications for a Buick car, including wheelbase, engine size, spare wheel, and color. | 1st Sep 1937 | Box 125 \ 3 scan0012 | |
| Correspondence regarding the number of spare wheels for a Buick car and its shortest wheelbase. | 15th Sep 1937 | Box 125 \ 3 scan0013 | |
| Letter from Buick Motor Division confirming arrangements for a 1938 Century Series car and accompanying manuals. | 17th Sep 1937 | Box 125 \ 3 scan0014 | |
| Cover note enclosing a copy of a letter received from Mr. Hartman regarding a Buick Car. | 17th Sep 1937 | Box 125 \ 3 scan0015 | |
| Letter from Lendrum & Hartman Ltd. to W. Cowen regarding an order for a 60 Model Buick, potential delays, price increases, and wholesale terms. | 16th Sep 1937 | Box 125 \ 3 scan0016 | |
| Request to amend an order for a 1938 Buick car to include the newly available self-shifting transmission. | 21th Sep 1937 | Box 125 \ 3 scan0017 | |
| Confirming a request to fit a Buick car on order with a self-shifting transmission. | 22th Sep 1937 | Box 125 \ 3 scan0018 | |
| Request for a self-shifting transmission for a Buick car, enclosing a letter from Messrs. Lendrum & Hartman. | 25th Sep 1937 | Box 125 \ 3 scan0019 | |
| Letter from Lendrum & Hartman Ltd. explaining the unavailability of a Buick self-shifting transmission for export. | 23th Sep 1937 | Box 125 \ 3 scan0020 | |
| Extract from a private letter regarding the decision not to offer Buick's new automatic transmission to overseas buyers. | 7th Oct 1937 | Box 125 \ 3 scan0021 | |
| Letter to General Motors requesting an exception to an export ban on a 1937 Buick gearbox. | 7th Oct 1937 | Box 125 \ 3 scan0022 | |
| Engine specifications for a 1937 Buick 30 HP - Model 40. | 13th Oct 1937 | Box 125 \ 3 scan0023 | |
| List of specifications for camshaft bearings, crankshaft weight, and flywheel weight. | 22th Oct 1937 | Box 125 \ 3 scan0024 | |
| Telegram from Buick regarding the availability of a special transmission for the series forty. | 22th Oct 1937 | Box 125 \ 3 scan0025 | |
| Attempt to acquire the latest semi-automatic Buick gearbox. | 22th Oct 1937 | Box 125 \ 3 scan0026 | |
| Letter to Lendrum & Hartman Ltd. regarding an order modification for a Series 40 Buick gearbox and engine. | 22th Oct 1937 | Box 125 \ 3 scan0027 | |
| Acquisition of a semi-automatic Buick gearbox and a potential change to an order. | 22th Oct 1937 | Box 125 \ 3 scan0028 | |
| Cablegram from Buick concerning the availability of a special transmission for the Series Forty model. | 22th Oct 1937 | Box 125 \ 3 scan0029 | |
| Letter from Lendrum & Hartman Ltd confirming a change of order for a Buick car from a Series 60 to a Series 40. | 25th Oct 1937 | Box 125 \ 3 scan0030 | |
| Letter from Lendrum & Hartman Ltd. regarding an order change for a 'Dome type piston'. | 25th Oct 1937 | Box 125 \ 3 scan0031 | |
| Confirming an agreement to change an order for a Buick car. | 25th Oct 1937 | Box 125 \ 3 scan0032 | |
| Telegram to the Buick Motor Company regarding a gearbox order change for a Series Forty Buick. | 27th Oct 1937 | Box 125 \ 3 scan0033 | |
| Request to send an official order to Shorts Service for work carried out on a Buick car. | 27th Oct 1937 | Box 125 \ 3 scan0034 | |
| Difficulty of sourcing a Buick car with an automatic gearbox for the right-hand drive market. | 29th Oct 1937 | Box 125 \ 3 scan0035 | |
| Query to Chayne Buick Motor Company regarding the supply and conversion of left-hand steering vehicles. | 30th Oct 1937 | Box 125 \ 3 scan0036 | |
| Short typed note referring to an event at a later date, signed by W.A. Robotham. | 30th Oct 1937 | Box 125 \ 3 scan0037 | |
| Request sent to Buick to purchase a right-hand drive car with a specific gearbox. | 5th Nov 1937 | Box 125 \ 3 scan0038 | |
| Noting a telegram has been sent to Mr. Chayne regarding the fitment of a gearbox to a right-hand drive Buick car. | 8th Nov 1937 | Box 125 \ 3 scan0039 | |
| Requesting an update on discussions concerning a Buick, mentioning Mr. Hartman and Mr. Chayne. | 29th Nov 1937 | Box 125 \ 3 scan0040 | |
| Difficulties in acquiring a Buick car with right-hand steering. | 2nd Dec 1937 | Box 125 \ 3 scan0041 | |
| Acquisition of a Buick car with right-hand steering. | 2nd Dec 1937 | Box 125 \ 3 scan0042 | |
| Short memo regarding a Buick car, acknowledging a previous memo and stating what to tell Hartman. | 6th Dec 1937 | Box 125 \ 3 scan0043 | |
| Specifications brochure for the Buick New 'R.O.' Series, detailing the Model 40 Special, Model 60 Century, Model 80 Roadmaster, and Model 90 Limited. | 6th Dec 1937 | Box 125 \ 3 scan0044 | |
| Promotional brochure detailing the chassis, engine, and modern features of the new Buick four models. | 6th Dec 1937 | Box 125 \ 3 scan0045 | |
| Sales brochure page detailing specifications for four Buick models from the Series 40 Special and Series 60 Century ranges. | 26th Oct 1938 | Box 125 \ 3 scan0046 | |
| Proposal to purchase a Buick Century Series '60' for competitive analysis of its features. | 26th Oct 1938 | Box 125 \ 3 scan0047 | |
| Price list for various Buick R.O. Series car models, trims, and optional extras from 1938. | 4th Nov 1938 | Box 125 \ 3 scan0048 | |
| Requesting enquiries into the purchase of a Buick car for testing purposes. | 10th Feb 1938 | Box 125 \ 3 scan0049 | |
| Confirming a conversation and enclosing a letter regarding the delivery of a Buick car. | 8th Nov 1938 | Box 125 \ 3 scan0050 | |
| Letter of enquiry to Lendrum & Hartman Ltd. regarding the importation of a Buick Century Saloon. | 8th Nov 1938 | Box 125 \ 3 scan0051 | |
| Letter from the Ethyl Export Corporation requesting performance figures on various cars. | 10th Nov 1938 | Box 125 \ 3 scan0052 | |
| Forwarding a letter from Lendrum & Hartman to request details for a Buick car. | 10th Nov 1938 | Box 125 \ 3 scan0053 | |
| The colour, upholstery, and engine requirements for a Buick car. | 11th Nov 1938 | Box 125 \ 3 scan0054 | |
| Letter discussing the performance of a Buick, requesting vehicle dimensions for wind resistance analysis and showing interest in a Lincoln Zephyr. | 12th Nov 1938 | Box 125 \ 3 scan0058 | |
| Dynamometer brake horsepower test results at the road wheels for a 1938 38 HP Buick Century. | 10th Nov 1938 | Box 125 \ 3 scan0059 | |
| Performance graph showing Brake Horsepower (B.HP) versus Revolutions Per Minute (R.P.M.) for a complete standard exhaust system. | 5th Jul 1938 | Box 125 \ 3 scan0060 | |
| Return of a book of patterns for a Buick car. | 14th Nov 1938 | Box 125 \ 3 scan0061 | |
| Acknowledging the return of a book of patterns for a Buick car to Lendrum & Hartman. | 16th Nov 1938 | Box 125 \ 3 scan0062 | |
| Letter from Ethyl Export Corporation regarding the procurement of horsepower curves for Buick and Lincoln Zephyr cars. | 16th Nov 1938 | Box 125 \ 3 scan0063 | |
| Letter to Buick inquiring about the reasoning for using right and left-hand thread wheel nuts. | 18th Nov 1938 | Box 125 \ 3 scan0064 | |
| Letter from the Ethyl Export Corporation to W. A. Robotham regarding attached information. | 21th Nov 1938 | Box 125 \ 3 scan0065 | |
| Weight and dimension specifications for a Buick ELF 798. | 11th Feb 1938 | Box 125 \ 3 scan0066 | |
| Confirming the price and estimated delivery date for a Buick car. | 24th Nov 1938 | Box 125 \ 3 scan0067 | |
| Delivery and order confirmation for a Buick car. | 25th Nov 1938 | Box 125 \ 3 scan0068 | |
| Statement of account from Lendrum & Hartman, Limited to the Experimental Department in Derby. | 31th Dec 1938 | Box 125 \ 3 scan0069 | |
| Letter from Lendrum & Hartman Ltd requesting remittance for an attached account. | 20th Jan 1939 | Box 125 \ 3 scan0070 | |
| Letter from Buick's Chief Engineer explaining the different wheel cap screw threads used in their American and Canadian plants. | 21th Dec 1938 | Box 125 \ 3 scan0071 | |
| The shipping and delivery schedule for a Buick car. | 23th Jan 1939 | Box 125 \ 3 scan0072 | |
| Letter from Lendrum & Hartman Ltd chasing payment for a November invoice. | 26th Jan 1939 | Box 125 \ 3 scan0073 | |
| Apology letter to Lendrum & Hartman Ltd. regarding a delay in returning parts and correspondence. | 27th Jan 1939 | Box 125 \ 3 scan0074 | |
| Confirming the delivery of a Buick car, providing its chassis and engine numbers. | 7th Feb 1939 | Box 125 \ 3 scan0075 | |
| Testing and delivery of a Century Buick car. | 9th Feb 1939 | Box 125 \ 3 scan0076 | |
| Test drive report and technical evaluation of a Century Buick, comparing it to the Wraith. | 14th Feb 1939 | Box 125 \ 3 scan0077 | |
| Request for the margin of error on a speedometer and the weight of a car. | 14th Feb 1939 | Box 125 \ 3 scan0078 | |
| The weight of a Century Buick in comparison to a Wraith. | 14th Feb 1939 | Box 125 \ 3 scan0079 | |
| Oil change for a Buick car at 600 miles. | 18th Feb 1939 | Box 125 \ 3 scan0080 | |
| Log book entry detailing criticisms of a Buick car's performance. | 20th Feb 1939 | Box 125 \ 3 scan0081 | |
| Vehicle body issues including uncomfortable seats, a short wiper blade, and a noisy speedometer drive. | 20th Feb 1939 | Box 125 \ 3 scan0082 | |
| Comparing the weight of the 'Cresta' Bentley with a Buick, alongside commentary on the performance of the Wraith. | 20th Feb 1939 | Box 125 \ 3 scan0083 | |
| Dynamometer test graph showing Brake Horsepower at the road wheels for a 1939 Buick Century. | 27th Feb 1939 | Box 125 \ 3 scan0084 | |
| Confirming receipt of a Buick car and that the account should be cleared. | 1st Mar 1939 | Box 125 \ 3 scan0085 | |
| Weight of a Buick and requesting the speedometer's margin of error. | 3rd Mar 1939 | Box 125 \ 3 scan0086 | |
| Checking of a Buick's speedometer and the forthcoming performance figures which will include speedometer errors. | 4th Mar 1939 | Box 125 \ 3 scan0087 | |
| Performance data and speedometer error analysis for a 38 HP Buick. | 8th Mar 1939 | Box 125 \ 3 scan0088 | |
| Distributing 1/16th scale drawings of a 'Century Buick' Series 60 and a Humber Super-Snipe Saloon. | 9th Mar 1939 | Box 125 \ 3 scan0089 | |
| Modification to a selector guide shaft to prevent oil leaks. | 27th Mar 1939 | Box 125 \ 3 scan0090 | |
| Layout of the front end of a Wraith 80 car, detailing the bonnet and dashboard pressing. | 27th Mar 1939 | Box 125 \ 3 scan0091 | |
| Windage and performance test results for a 1939 Century Buick, comparing them to a 1938 model. | 13th Mar 1939 | Box 125 \ 3 scan0092 | |
| Performance chart showing dynamometer brake horsepower at the road wheels for a 1939 Buick Century. | 27th Feb 1939 | Box 125 \ 3 scan0093 | |
| Technical specifications and performance data for a Buick Series 60 following Brooklands tests. | 14th Mar 1939 | Box 125 \ 3 scan0094 | |
| Performance test report detailing speeds, temperatures, and fuel consumption. | 14th Mar 1939 | Box 125 \ 3 scan0095 | |
| Brooklands test data and performance figures for a Humber Super Snipe 27 HP | 14th Mar 1939 | Box 125 \ 3 scan0096 | |
| Speedometer check, various temperature readings, and petrol consumption during high-speed runs. | 14th Mar 1939 | Box 125 \ 3 scan0097 | |
| Graph comparing road wheel horsepower versus engine RPM for various motor cars. | 14th Mar 1939 | Box 125 \ 3 scan0098 | |
| Official order for a Buick radiator cap from Messrs. Shorts Service. | 20th Mar 1939 | Box 125 \ 3 scan0099 | |
| Letter from the Experimental Department requesting an exhaust silencer for a Buick car. | 20th Mar 1939 | Box 125 \ 3 scan0100 | |
| Letter from Lendrum & Hartman Ltd. regarding a request for a Buick exhaust silencer. | 22th Mar 1939 | Box 125 \ 3 scan0101 | |
| Letter from the Experimental Department requesting a replacement silencer for a Buick car. | 24th Mar 1939 | Box 125 \ 3 scan0102 | |
| Performance and consumption report for a 1939 Century Buick on a run from Derby to Brooklands and back. | 30th Mar 1939 | Box 125 \ 3 scan0103 | |
| Confirming the completed dismantling and reassembly of a Buick steering gear. | 3rd May 1939 | Box 125 \ 3 scan0104 | |
| Request to Lendrum & Hartman for one Buick exhaust silencer, series 60 1939 model. | 3rd May 1939 | Box 125 \ 3 scan0105 | |
| Requesting an official order be sent to Messrs. Lendrum & Hartman Ltd. for parts received. | 8th May 1939 | Box 125 \ 3 scan0106 | |
| Request to Lendrum & Hartman Ltd. for one Buick exhaust silencer and two air silencers for a 1939 Series 60 model. | 9th May 1939 | Box 125 \ 3 scan0107 | |
| Letter to Messrs. Lendrum & Hartman Ltd. regarding an invoice error and an omitted floating bush for a steering roller shaft. | 11th May 1939 | Box 125 \ 3 scan0108 | |
| Query note regarding the quantity of a steering roller shaft for Pendrum & Hartman Ltd. | 12th May 1939 | Box 125 \ 3 scan0109 | |
| Letter from Lendrum & Hartman Ltd regarding an order for Buick Series 60 spare parts. | 12th May 1939 | Box 125 \ 3 scan0110 | |
| Requesting a covering order for Buick Series 60 exhaust silencers and air silencers. | 16th May 1939 | Box 125 \ 3 scan0111 | |
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