| Description | Date | Identifier | |
| Instruction to test the suitability of a special non-porous alloy for use in pistons. | 22th Aug 1918 | Box 76 \ 3 scan0074 | |
| Analysis of an oil sample from Mr. Hives, detailing its properties and comparing it to Castrol. | 27th Aug 1918 | Box 76 \ 3 scan0075 | |
| Material composition analysis for mild steel cylinder jackets against company specification. | 9th Sep 1918 | Box 76 \ 3 scan0076 | |
| Laboratory report on the chemical composition and quality of steel welding wire. | 6th Sep 1917 | Box 76 \ 3 scan0077 | |
| Material composition analysis of a returned Mercedes sparking plug rod. | 11th Sep 1918 | Box 76 \ 3 scan0078 | |
| Test results for a sample of Price's aero engine oil, detailing viscosity, flash point, and other properties. | 12th Sep 1918 | Box 76 \ 3 scan0079 | |
| Report from the inspection department on the results of a material test. | 30th Sep 1918 | Box 76 \ 3 scan0080 | |
| Laboratory analysis report on the material composition and suitability of a crankshaft. | 20th Nov 1918 | Box 76 \ 3 scan0081 | |
| Laboratory analysis of a steel sample named 'Stalloy' from Mr Hives. | 19th Dec 1918 | Box 76 \ 3 scan0082 | |
| Recommendations to reduce corrosion on a float chamber cover by changing the alloy composition or applying a varnish. | 26th Apr 1917 | Box 76 \ 3 scan0083 | |
| Laboratory report on distillation tests of various fuel samples. | 28th Jan 1919 | Box 76 \ 3 scan0084 | |
| Analysis report of a broken brake shoe, No. 572. | 28th Jan 1919 | Box 76 \ 3 scan0085 | |
| Laboratory report detailing the metallic composition of a submitted strip. | 5th Feb 1919 | Box 76 \ 3 scan0086 | |
| Laboratory test results for the distillation range of two samples of Benzole, 'Dull' and 'Clear'. | 11th Mar 1919 | Box 76 \ 3 scan0087 | |
| Laboratory report comparing the distillation properties of two petrols, 'Sumatra Spirit' and 'Pratts No.1'. | 11th Mar 1919 | Box 76 \ 3 scan0088 | |
| Laboratory report on a petrol sample's distillation, specific gravity, and suitability for aero engines. | 18th Mar 1919 | Box 76 \ 3 scan0089 | |
| Laboratory test results for Benzene content in Eastern Spirit. | 26th Apr 1917 | Box 76 \ 3 scan0090 | |
| Chemical analysis report of an American Brake Drum. | 25th Oct 1918 | Box 76 \ 3 scan0091 | |
| Laboratory analysis report detailing the chemical composition of three ball cage samples. | 25th Oct 1918 | Box 76 \ 3 scan0092 | |
| Heat expansion test results for a cast iron piston and a thin aluminium piston. | 16th Jan 1919 | Box 76 \ 3 scan0093 | |
| Laboratory report on the estimation of thermal expansion of an aluminum car piston up to 200°C. | 16th Apr 1919 | Box 76 \ 3 scan0094 | |
| Process for applying protective enamel coatings to steel, bronze, and brass parts. | 26th Apr 1917 | Box 76 \ 3 scan0095 | |
| Comparison of egg-shell enamel versus black enamel for springs and notes on application methods. | 25th Oct 1918 | Box 76 \ 3 scan0096 | |
| Laboratory analysis results for Price's Gas Engine Oil and Wakefield's Castrol. | 26th Jun 1919 | Box 76 \ 3 scan0097 | |
| Laboratory analysis report for a fractured steering lever. | 22th May 1919 | Box 76 \ 3 scan0098 | |
| Laboratory analysis report on a fractured road spring. | 16th Apr 1919 | Box 76 \ 3 scan0099 | |
| Laboratory analysis of thin piston metal used for heat expansion tests. | 16th Apr 1919 | Box 76 \ 3 scan0100 | |
| Laboratory report on the chemical analysis, Brinell hardness, and microscopic examination of a steering lever. | 16th Apr 1919 | Box 76 \ 3 scan0101 | |
| Laboratory analysis of a failed Condor Crankshaft after an endurance test. | 30th Sep 1919 | Box 76 \ 3 scan0102 | |
| Laboratory report on a failed Condor Crankshaft due to improper heat treatment after a 110-hour endurance test. | 16th Apr 1919 | Box 76 \ 3 scan0103 | |
| Photomicrograph showing the crystalline structure of a material. | 16th Apr 1919 | Box 76 \ 3 scan0104 | |
| Material analysis and hardness test results for a failed Condor crankshaft. | 16th Apr 1919 | Box 76 \ 3 scan0105 | |
| Laboratory report on a broken Condor crankshaft (CX6) discussing issues with heat treatment and material properties. | 16th Apr 1919 | Box 76 \ 3 scan0106 | |
| Laboratory analysis of a fractured rocking shaft and a car frame, detailing their chemical composition and hardness. | 25th Nov 1919 | Box 76 \ 3 scan0107 | |
| Failure analysis report concluding that cracks originated due to a soft surface with a low yield point under repeated stress. | 22th May 1919 | Box 76 \ 3 scan0108 | |
| Suitable materials for an accumulator box to be carried in the rear of a chassis. | 29th Nov 1919 | Box 76 \ 3 scan0109 | |
| Recommendation to change the material for the rear axle casing from Mild Steel to Nickel Steel. | 26th Apr 1917 | Box 76 \ 3 scan0110 | |
| Requesting the forging of experimental valves from a new Chrome Vanadium Steel for testing. | 6th Aug 1919 | Box 76 \ 3 scan0111 | |
| Laboratory analysis of the chemical composition of a sparking plug centre. | 8th Jan 1920 | Box 76 \ 3 scan0112 | |
| Laboratory comparison of two different oil samples, noting viscosity, flash point, and specific gravity. | 8th Jan 1920 | Box 76 \ 3 scan0113 | |
| Laboratory report on a fractured car spring, concluding the cause was incorrect heat treatment. | 28th Feb 1920 | Box 76 \ 3 scan0114 | |
| Laboratory test results for the breakdown temperature of various brake linings. | 8th Jan 1920 | Box 76 \ 3 scan0115 | |
| Laboratory analysis report on a re-sample of gauze, detailing its chemical composition. | 17th Mar 1920 | Box 76 \ 3 scan0116 | |
| Request for a sample of bearing metal from the British Ulco Co. for testing and comparison. | 6th Aug 1919 | Box 76 \ 3 scan0117 | |
| Laboratory report on the capacity and liquid contents of a thermostat expanding reservoir. | 8th Jan 1920 | Box 76 \ 3 scan0118 | |
| Laboratory analysis report of a substance from a petrol tank, referencing Chassis 1454. | 8th Jan 1920 | Box 76 \ 3 scan0119 | |
| Sample of ULCO bearing metal sent for examination and potential application. | 8th Jan 1920 | Box 76 \ 3 scan0120 | |
| Laboratory report on the viscosity test of Amber Gear Oil. | 11th May 1920 | Box 76 \ 3 scan0121 | |
| Specification sheet for Amber Gear Oil. | 8th Jan 1920 | Box 76 \ 3 scan0122 | |
| Comparison of copper-nickel or monel gauzes versus copper ones for use in petrol filters. | 24th Mar 1920 | Box 76 \ 3 scan0123 | |
| Laboratory report on the analysis of two samples of Castrol oil, one unused and one used. | 19th Feb 1920 | Box 76 \ 3 scan0124 | |
| Laboratory report on the corrosive effects of various water solutions on radiator materials. | 28th Jul 1920 | Box 76 \ 3 scan0125 | |
| Laboratory report on corrosion tests of radiator tubes, comparing electrolytic copper, arsenical copper, and brass. | 1st Aug 1920 | Box 76 \ 3 scan0126 | |
| Distillation and specific gravity test results for a petrol sample from The British Petroleum Co. | 25th Nov 1920 | Box 76 \ 3 scan0127 | |
| Laboratory analysis of a Castrol oil sample supplied by Messrs. Instones. | 6th Dec 1920 | Box 76 \ 3 scan0128 | |
| Laboratory analysis of a vapour and condensation sample from the Experimental Department. | 30th Jun 1925 | Box 76 \ 3 scan0129 | |
| Constructing a special thermo-couple with a cast iron element and testing its electromotive force. | 24th Feb 1926 | Box 76 \ 3 scan0130 | |
| Laboratory report on the Brinell hardness test of a Duralumin Push Rod. | 19th Jan 1927 | Box 76 \ 3 scan0131 | |
| Importance of research into white metal anti-friction materials and methods. | 22th Jan 1927 | Box 76 \ 3 scan0132 | |
| Laboratory memo discussing heat-treatment test results for copper-containing wire and alternative steel specifications. | 21th Oct 1927 | Box 76 \ 3 scan0133 | |
| Forwarding a letter and booklet from the British-American Rotary Valve Co. for review. | 4th Aug 1921 | Box 76 \ 3 scan0134 | |
| Letter from the British American Rotary Valve Company offering a license for their patented motor and company shares. | 23th Jul 1921 | Box 76 \ 3 scan0135 | |
| 'Zervo-Economizer' fitting, stating it is of no interest. | 23th Sep 1921 | Box 76 \ 3 scan0136 | |
| Follow-up letter from The Capac Company Ltd regarding a product demonstration on a 40-50 car. | 26th Sep 1921 | Box 76 \ 3 scan0137 | |
| Listing worldwide users of the Capac Bin-Aural product. | 2nd Oct 1927 | Box 76 \ 3 scan0138 | |
| Price list and brochure for the 'CAPAC' Bin-Aural sound location and examination instrument. | 2nd Oct 1927 | Box 76 \ 3 scan0139 | |
| Instructions and applications for the 'CAPAC' Bin-Aural, a device for knock detection and sound standardisation. | 20th Oct 1921 | Box 76 \ 3 scan0140 | |
| Brief internal memo regarding attached and previous correspondence. | 20th Oct 1921 | Box 76 \ 3 scan0141 | |
| 'Saville' Rustless Iron, clarifying it is iron not steel, and asking if samples are required for testing. | 3rd Nov 1921 | Box 76 \ 3 scan0142 | |
| Letter from J.J. Saville & Co introducing their new 'Saville' Rustless Iron with its physical characteristics. | 2nd Nov 1921 | Box 76 \ 3 scan0143 | |
| Lack of application for 'Saville' Rustless Iron. | 9th Nov 1921 | Box 76 \ 3 scan0144 | |
| Letter and circular about the 'Bradwell Tester' from Joseph Steer of Birmingham. | 17th Nov 1921 | Box 76 \ 3 scan0145 | |
| Letter from Joseph Steer regarding the 'Bradwell Tester' and its potential for six-cylinder cars. | 16th Nov 1921 | Box 76 \ 3 scan0146 | |
| Fixing and connection instructions for the dashboard-mounted Bradwell engine tester. | 16th Nov 1921 | Box 76 \ 3 scan0147 | |
| Instructional flyer for 'The Bradwell Tester', a device for diagnosing engine issues. | 22th Nov 1921 | Box 76 \ 3 scan0148 | |
| Follow-up from the British-American Rotary Valve Co. about a planned demonstration of their motor in London. | 22th Nov 1921 | Box 76 \ 3 scan0149 | |
| Letter from Leo. Swain & Co. Ltd. offering their 'Leosco Footscraper' as a standard fitment for cars. | 30th Nov 1921 | Box 76 \ 3 scan0150 | |
| Letter from Ateliers Bariquand & Marre with instructions for fitting special shackles for road tests. | 20th Jan 1922 | Box 76 \ 3 scan0151 | |
| Letter in French from Ateliers Bariquand & Marre concerning specialized spring shackles. | 20th Jan 1922 | Box 76 \ 3 scan0152 | |
| Sales letter from E.D. Motors Ltd. promoting 'The Instarter', a flexible electric heater for carburetters. | 1st Mar 1922 | Box 76 \ 3 scan0153 | |
| Terms of business and agent discounts for the 'Instarter' product. | 1st Mar 1922 | Box 76 \ 3 scan0154 | |
| Informational leaflet for 'The Instarter', a flexible electric heater for the induction pipe. | 1st Mar 1922 | Box 76 \ 3 scan0155 | |
| Advertisement leaflet for the 'Instarter' car accessory. | 11th Apr 1922 | Box 76 \ 3 scan0156 | |
| Letter from Wilcot (Parent) Co Ltd regarding the completion of a new model car job and steering joint covers. | 11th Apr 1922 | Box 76 \ 3 scan0157 | |
| Letter from Wilcot (Parent) Company Ltd. discussing improvements to car covers. | 11th Apr 1922 | Box 76 \ 3 scan0158 | |
| Information and fixing instruction leaflet for the dashboard-mounted Bradwell Tester engine diagnostic tool. | 11th Apr 1922 | Box 76 \ 3 scan0159 | |
| Informational leaflet and advertisement for The Bradwell Tester, an engine diagnostic tool. | 27th Jul 1922 | Box 76 \ 3 scan0160 | |
| Brief letter regarding a sample of 'Volvite' Metal Cleaner for testing. | 27th Jul 1922 | Box 76 \ 3 scan0161 | |
| Letter to Jean Bernard in France declining a design proposal for 2-stroke motors. | 29th Dec 1922 | Box 76 \ 3 scan0162 | |
| The Citroen-Kegresse Device, advising to pause consideration on the matter. | 30th Apr 1923 | Box 76 \ 3 scan0163 | |
| Letter to Citroen-Kegresse declining to conduct trials on their device for armoured cars. | 27th Apr 1923 | Box 76 \ 3 scan0164 | |
| Letter from S. Guiterman & Co. Ltd. proposing their patented 'ACME' Magneto Coupling with pricing details. | 6th Jun 1923 | Box 76 \ 3 scan0165 | |
| Advertisement for the 'Acme' Vernier Magneto Coupling by S. Guiterman & Co. Ltd. | 27th Jun 1924 | Box 76 \ 3 scan0166 | |
| The manufacturing arrangements and testing feedback for a Grav-vac apparatus. | 27th Jun 1924 | Box 76 \ 3 scan0167 | |
| Paper by Mr. Whipple of the Cambridge Instrument Company on the potential use of Accelerometers and Torsionmeters. | 16th May 1925 | Box 76 \ 3 scan0168 | |
| Sample of a heat, oil, water, and petrol-proof Japan finish from Thos. Howse Ltd. | 6th May 1925 | Box 76 \ 3 scan0169 | |
| Following up on a sample of 'Thermax' Fireproof Silencer Black Japan from Thomas Howse Ltd. | 26th Sep 1925 | Box 76 \ 3 scan0170 | |
| Letter from Parisian Jeweller and Watchmaker, F. Senn, following up on a previously sent catalogue. | 3rd Nov 1928 | Box 76 \ 3 scan0171 | |
| Letter from Desmo Ltd. offering to supply a single barrelled foot pump at a competitive price. | 20th Sep 1929 | Box 76 \ 3 scan0172 | |
| Reviewing the status of 'Key Cards' which authorise expenditure for 20HP and 40/50HP models. | 18th Aug 1927 | Box 76 \ 3 scan0173 | |
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