| Description | Date | Identifier | |
| Covering memo for a letter from Mr. Zimmerlie of Barnes, Gibson & Raymond, Inc., regarding valve springs. | 27th May 1936 | Box 126 \ 4 scan0148 | |
| The receipt and forwarding of Chevrolet drawings promised by Mr. Taub. | 8th Jun 1936 | Box 126 \ 4 scan0149 | |
| Research on valve springs, referencing a paper and comparing various spring designs. | 8th Jun 1936 | Box 126 \ 4 scan0150 | |
| Chart comparing total static stress variation on valve springs from various manufacturers against the average stress range for carbon steel wire. | 6th Jun 1936 | Box 126 \ 4 scan0151 | |
| Graph illustrating the endurance stress range for S/CV valve springs. | 6th Jun 1936 | Box 126 \ 4 scan0152 | |
| Letter from Vauxhall Motors to E.W. Hives regarding sourcing spare parts for a Chevrolet car. | 9th Jun 1936 | Box 126 \ 4 scan0153 | |
| Letter to A. Taub of Vauxhall Motors returning drawings and discussing ongoing tests on piston rings and chromium-plated cylinder blocks. | 16th Jun 1936 | Box 126 \ 4 scan0154 | |
| Listing available drawings and photostats for a Chevrolet engine unit. | 16th Jun 1936 | Box 126 \ 4 scan0155 | |
| To Miss Ryder listing tracings and photostats relating to the Chevrolet Car to be filed in Tracing Stores. | 24th Jun 1936 | Box 126 \ 4 scan0156 | |
| Letter from Chevrolet Motor Company to Mr. W. A. Robotham requesting data and a sample of an aluminum tin bearing. | 8th Jul 1936 | Box 126 \ 4 scan0157 | |
| Letter to Chevrolet regarding testing tin-aluminium alloy bearings and requesting shaft specifications. | 28th Jul 1936 | Box 126 \ 4 scan0158 | |
| Oil consumption test run report for a Chevrolet vehicle on a trip to Oxford and return. | 31th Jul 1936 | Box 126 \ 4 scan0159 | |
| Letter from General Motors Corporation thanking Mr. Robotham for forwarded photographs, instruction books and catalogs. | 31th Aug 1936 | Box 126 \ 4 scan0160 | |
| Sending sample bearings to the Chevrolet Co. in America and a query regarding customs duty. | 23th Sep 1936 | Box 126 \ 4 scan0161 | |
| Request to place an official order with Messrs. Pass & Joyce for a petrol gauge tank unit for a 1936 Chevrolet Car. | 2nd Oct 1936 | Box 126 \ 4 scan0162 | |
| Enquiry to Pass & Joyce Ltd. for a petrol gauge tank unit for a 1936 Chevrolet car. | 2nd Oct 1936 | Box 126 \ 4 scan0163 | |
| Requesting tests on a Chevrolet's suction ignition control and crankcase ventilation to check for oil leaks. | 19th Oct 1936 | Box 126 \ 4 scan0164 | |
| Request to Pass & Joyce Ltd. for a cork rock cover joint for a 27 HP Chevrolet car. | 26th Oct 1936 | Box 126 \ 4 scan0165 | |
| Letter requesting a Chevrolet 27 HP hand book and its gear ratios. | 30th Oct 1936 | Box 126 \ 4 scan0166 | |
| Requesting an oil consumption test and engine cost analysis on a Chevrolet car. | 12th Jan 1937 | Box 126 \ 4 scan0167 | |
| Petrol consumption test comparing a Chevrolet GAE-20 with a 30 HP RR model. | 24th Oct 1936 | Box 126 \ 4 scan0168 | |
| Oil consumption figures for a Chevrolet car comparing Mobiloil Artic and Castrol XL. | 15th Jan 1937 | Box 126 \ 4 scan0169 | |
| Requesting crankcase depression tests on a Chevrolet and a 25/30 model. | 25th Jan 1937 | Box 126 \ 4 scan0170 | |
| List of weights for various 1937 Chevrolet components. | 1st Apr 1937 | Box 126 \ 4 scan0171 | |
| List of weights for Chevrolet vehicle components, continued from a previous page. | 1st Apr 1937 | Box 126 \ 4 scan0172 | |
| Request to dismantle and measure a Chevrolet brake assembly for potential use on a future light car. | 10th May 1937 | Box 126 \ 4 scan0173 | |
| Request for an official order for Chevrolet brake linings from Messrs. Pass & Joyce. | 14th May 1937 | Box 126 \ 4 scan0174 | |
| Letter from the Experimental Dept. to Messrs. Pass & Joyce Ltd. requesting a set of 1936 model Chevrolet brake linings and rivets. | 14th May 1937 | Box 126 \ 4 scan0175 | |
| Requesting the relining of brakes for a Chevrolet car before it leaves the shop. | 19th May 1937 | Box 126 \ 4 scan0176 | |
| Laboratory analysis of the steel composition of a Chevrolet Camshaft. | 9th Jun 1937 | Box 126 \ 4 scan0177 | |
| Weight analysis of a Chevrolet engine and a forthcoming analysis of a Bentley car. | 15th Jun 1937 | Box 126 \ 4 scan0178 | |
| Production of bottom tappets for the Wraith, referencing Chevrolet and Vauxhall designs. | 16th Jun 1937 | Box 126 \ 4 scan0179 | |
| Weight comparison table for Chevrolet and Wraith valve gear components. | 18th Jun 1937 | Box 126 \ 4 scan0180 | |
| Comparison of camshaft and tappet displacement specifications for Chevrolet and Wraith engines. | 18th Jun 1937 | Box 126 \ 4 scan0181 | |
| Comparison of valve spring loads for Chevrolet and Wraith models. | 18th Jun 1937 | Box 126 \ 4 scan0182 | |
| Notes and specifications for a Chevrolet engine. | 15th Sep 1937 | Box 126 \ 4 scan0183 | |
| Specification sheet detailing engine component dimensions and system descriptions. | 15th Sep 1937 | Box 126 \ 4 scan0184 | |
| List of engineering specifications for various engine components including the crankshaft, flywheel, and camshaft. | 15th Sep 1937 | Box 126 \ 4 scan0185 | |
| Page of technical specifications for various engine components. | 15th Sep 1937 | Box 126 \ 4 scan0186 | |
| The front engine mounting plate and the induction/exhaust system, with references to other drawings and a handbook. | 15th Sep 1937 | Box 126 \ 4 scan0187 | |
| Series of sketches detailing various engine components including a water nozzle, cylinder barrel, and crankcase. | 15th Sep 1937 | Box 126 \ 4 scan0188 | |
| Sketches showing the rear and front views of a clutch casing with component labels and dimensions. | 15th Sep 1937 | Box 126 \ 4 scan0189 | |
| Sketches of an inverted clutch housing, front crankshaft bearing cap, and timing case pressing with associated notes. | 15th Sep 1937 | Box 126 \ 4 scan0190 | |
| Sketches and specifications for various engine components including crankshaft, flywheel, and valve gear. | 15th Sep 1937 | Box 126 \ 4 scan0191 | |
| Sketches of engine components including a camshaft bearing, con rod, big end, and oil pump. | 15th Sep 1937 | Box 126 \ 4 scan0192 | |
| Sketches detailing the timing gear, oil filler/breather, and inlet/exhaust manifolds. | 15th Sep 1937 | Box 126 \ 4 scan0193 | |
| Sketches of oil pipes, jet tubes, tappets, and push rods for engine lubrication. | 16th Sep 1937 | Box 126 \ 4 scan0194 | |
| Cover letter for a report on a Chevrolet engine, introducing a new record-keeping initiative for outside makes of cars. | 16th Sep 1937 | Box 126 \ 4 scan0195 | |
| Diagram of a Chevrolet brake assembly. | 7th May 1937 | Box 126 \ 4 scan0196 | |
| Observations of Chevrolet design features like a curved rear window and a door-activated switch light. | 28th Oct 1940 | Box 126 \ 4 scan0197 | |
| Letter to W. Lyons of S.S. Cars Ltd. confirming a meeting at the S.S. Works. | 15th Jun 1936 | Box 126 \ 5 scan0001 | |
| Letter from the Managing Director's office of SS Works requesting to amend an appointment time. | 17th Jun 1936 | Box 126 \ 5 scan0002 | |
| General data and specifications for a 2½ litre S.S. Jaguar. | 3rd Jul 1936 | Box 126 \ 5 scan0003 | |
| Specification sheet detailing car weight, axle ratios, performance data, and engine components. | 3rd Jul 1936 | Box 126 \ 5 scan0004 | |
| Page 3 of engine, clutch, and gearbox specifications. | 3rd Jul 1936 | Box 126 \ 5 scan0005 | |
| Specification sheet detailing the rear axle, wheels, suspension, and frame. | 1st Jul 1936 | Box 126 \ 5 scan0006 | |
| Graph showing the inlet valve lift against flywheel degrees for an SS Jaguar 2 1/2 Litre 19.84 HP model. | 1st Jul 1936 | Box 126 \ 5 scan0007 | |
| Blueprint graph of the exhaust valve lift for an S.S. Jaguar 2 1/2 Litre 19.84 HP model engine. | 3rd Jul 1936 | Box 126 \ 5 scan0008 | |
| Confidential memo detailing a road test and chassis examination of an S.S. Jaguar. | 3rd Jul 1936 | Box 126 \ 5 scan0009 | |
| Analysis of a vehicle's rear frame, suspension, and jacking system, with comparisons to a Jaguar. | 3rd Jul 1936 | Box 126 \ 5 scan0010 | |
| Vehicle design issues including coachwork, frame, silencer, wiring, steering, springing, and plans for a Bentley III redesign. | 17th Nov 1936 | Box 126 \ 5 scan0011 | |
| Letter to S.S. Cars Ltd. inquiring about their satisfaction with their rev.counter and speedometer, and issues with noisy drives. | 17th Nov 1936 | Box 126 \ 5 scan0012 | |
| Letter from SS Cars Ltd. regarding dissatisfaction with rev counters, speedometers, and noisy drives. | 18th Nov 1936 | Box 126 \ 5 scan0013 | |
| Letter to W. Lyons of S.S. Cars Ltd. regarding the purchase of a 3.5-litre Jaguar and a proposed visit. | 7th Oct 1937 | Box 126 \ 5 scan0014 | |
| Letter to W. Lyons of S.S. Cars Ltd. arranging a visit to the works. | 19th Oct 1937 | Box 126 \ 5 scan0015 | |
| Letter from the Managing Director of SS Works to W.A. Robotham regarding a visit to view the new 3.5 litre Jaguar. | 9th Oct 1937 | Box 126 \ 5 scan0016 | |
| Letter from SS Cars Ltd to Mr. Robotham regarding the postponement of a works visit. | 21th Oct 1937 | Box 126 \ 5 scan0017 | |
| Letter to W. Lyons of S.S. Cars Ltd. arranging a visit and congratulating them on their display at Earls Court. | 23th Oct 1937 | Box 126 \ 5 scan0018 | |
| Letter from the Managing Director of SS Cars Ltd. to W.A. Robotham regarding a works visit and congratulations for cars at Earls Court. | 27th Oct 1937 | Box 126 \ 5 scan0019 | |
| Letter from the Managing Director's Office of SS Works, Coventry, to W.A. Robotham, requesting to postpone a visit. | 15th Nov 1937 | Box 126 \ 5 scan0020 | |
| Letter to W. Lyons of S.S. Cars Ltd. regarding the rescheduling of a meeting. | 18th Nov 1937 | Box 126 \ 5 scan0021 | |
| Letter from the Managing Director's office at SS Works (Jaguar) to W.A. Robotham, proposing dates for a visit. | 18th Nov 1937 | Box 126 \ 5 scan0022 | |
| Letter from the secretary of W. Lyons (SS Cars) to W.A. Robotham acknowledging a letter and suggesting meeting dates. | 19th Nov 1937 | Box 126 \ 5 scan0023 | |
| Letter to W. Lyons of S.S. Cars Ltd. confirming a date for a visit. | 20th Nov 1937 | Box 126 \ 5 scan0024 | |
| Letter from SS Cars Ltd. confirming a suitable meeting date with W. A. Robotham. | 24th Nov 1937 | Box 126 \ 5 scan0025 | |
| Letter to W. Lyons of S.S. Cars Ltd. arranging a meeting time due to concerns about fog. | 25th Nov 1937 | Box 126 \ 5 scan0026 | |
| Letter to W. Lyons of S.S. Cars Ltd. clarifying the company's position on Vandervell's thin shell bearings. | 1st Dec 1937 | Box 126 \ 5 scan0027 | |
| Notes on Jaguar cars and engines following a visit to the S.S. Motor Car Co. | 2nd Dec 1937 | Box 126 \ 5 scan0028 | |
| Performance and engineering analysis of a competitor's vehicle, likely a Jaguar, compared to a Bentley. | 2nd Dec 1937 | Box 126 \ 5 scan0029 | |
| Potential purchase of a 3.5-litre car, a specific chassis frame, and a planned visit with Mr. Lyons. | 2nd Dec 1937 | Box 126 \ 5 scan0030 | |
| Letter to W. Lyons of S.S. Cars Ltd. regarding the delivery schedule for a 3 1/2-litre car. | 29th Dec 1937 | Box 126 \ 5 scan0031 | |
| Letter from the Managing Director's Office of SS Cars (Jaguar) regarding a delay on 3½ litre models. | 1st Jan 1938 | Box 126 \ 5 scan0032 | |
| Letter from SS Cars Limited regarding engine running-on issues and the dispatch of parts for analysis. | 18th Jan 1938 | Box 126 \ 5 scan0033 | |
| Continuation sheet from SS Cars Ltd regarding the sectioning of a head component. | 7th Feb 1938 | Box 126 \ 5 scan0034 | |
| Requesting to borrow a new 3 1/2-litre Jaguar to investigate its Widney concealed hinge, noting its success in the Monte Carlo Rally. | 7th Feb 1938 | Box 126 \ 5 scan0035 | |
| Status of a yet to be received Jaguar car. | 8th Feb 1938 | Box 126 \ 5 scan0036 | |
| Sg. to Gry. requesting confirmation on the receipt of a Jaguar car. | 16th Feb 1938 | Box 126 \ 5 scan0037 | |
| To pass an order for an S.S. Jaguar car. | 16th Mar 1938 | Box 126 \ 5 scan0038 | |
| Comparing seating dimensions and weight of a Bentley III body against a 3.5 litre Jaguar. | 17th Mar 1938 | Box 126 \ 5 scan0039 | |
| Technical comparison between the S.S. Jaguar bonnet hinge and the Widney concealed hinge. | 26th May 1938 | Box 126 \ 5 scan0040 | |
| Comparison drawing of a Widney hinge and an S.S. Jaguar bonnet hinge. | 28th Mar 1938 | Box 126 \ 5 scan0041 | |
| Performance and market analysis of a 3.5-Litre Jaguar. | 28th Mar 1938 | Box 126 \ 5 scan0042 | |
| Comparative lap speed and RPM tests between a 3½ Litre Jaguar and a 4¼ Litre Bentley. | 28th Mar 1938 | Box 126 \ 5 scan0043 | |
| General data and specifications sheet for a 3½ Litre Jaguar. | 28th Mar 1938 | Box 126 \ 5 scan0044 | |
| Test report on fuel consumption and water temperature for a 3 1/4 Jaguar. | 22th Mar 1935 | Box 126 \ 5 scan0045 | |
| Graph of road speed (MPH) versus engine speed (RPM) for a 3 1/2 Litre Saloon, showing performance in different gears. | 22th Mar 1935 | Box 126 \ 5 scan0046 | |
| Urgent internal memo regarding the arrangement to test a 3.5 litre Jaguar. | 31th Mar 1938 | Box 126 \ 5 scan0047 | |
| Supplier of sheet metal work for Jaguar exhaust systems. | 1st Apr 1938 | Box 126 \ 5 scan0048 | |
| Telegram regarding the arrival of a Jaguar at Lillie Hall for testing. | 1st Apr 1938 | Box 126 \ 5 scan0049 | |
| Note specifying the Jaguar Order Number. | 5th Apr 1938 | Box 126 \ 5 scan0050 | |
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