| Description | Date | Identifier | |
| List of action points and notes on various engine and drivetrain components. | 4th Dec 1940 | Box 159 \ 5 scan0105 | |
| Meeting notes detailing actions required for axles, propeller shafts, bearings, and gearbox lubricant. | 4th Dec 1940 | Box 159 \ 5 scan0106 | |
| Meeting minutes discussing heaters, water pumps, radiators, engine mounts, and fuel consumption tests. | 4th Dec 1940 | Box 159 \ 5 scan0107 | |
| Requesting to get the engine for the supercharger rig into running condition. | 8th Dec 1940 | Box 159 \ 5 scan0108 | |
| Confirming plans for an endurance test on a B.60 engine unit, detailing required modified parts. | 17th Dec 1940 | Box 159 \ 5 scan0109 | |
| Performance of big end bearings and plans to test alternative tri-metal and lead bronze bearings. | 26th Nov 1940 | Box 159 \ 5 scan0110 | |
| Notice for a Testers conference. | 2nd Dec 1940 | Box 159 \ 5 scan0111 | |
| Request for information on the Kestrel prototype test for a tank engine, including test conditions, hours, and fuel samples. | 3rd Dec 1940 | Box 159 \ 5 scan0112 | |
| Proposing the redesign of the Senior Range connecting rod to reduce weight and redistribute material for increased stiffness. | 17th Dec 1940 | Box 159 \ 5 scan0113 | |
| Effectiveness of a rubber seal for water exclusion from the servo. | 17th Dec 1940 | Box 159 \ 5 scan0114 | |
| Personnel changes within the Clan Foundry Organisation. | 4th Jan 1941 | Box 159 \ 5 scan0115 | |
| Fitting a cylinder block with chromium-plated bores and requesting a summary on piston seizing. | 29th Dec 1940 | Box 159 \ 5 scan0116 | |
| Proposing experiments on a Borg & Beck clutch centre to address transmission rattles. | 4th Jan 1941 | Box 159 \ 5 scan0117 | |
| Announcing a Tester's Conference for all testers. | 4th Jan 1941 | Box 159 \ 5 scan0118 | |
| Instruction to inspect the pistons and rings on an Austin 8 due to high oil consumption. | 7th Jan 1941 | Box 159 \ 5 scan0119 | |
| Minutes of a Testers' Monthly Conference regarding various vehicle components. | 8th Jan 1941 | Box 159 \ 5 scan0120 | |
| Agreed modifications for body mounting, customer cars, induction systems, and a high-power engine. | 8th Jan 1941 | Box 159 \ 5 scan0121 | |
| Meeting notes or progress report on various vehicle components and a model car. | 8th Jan 1941 | Box 159 \ 5 scan0122 | |
| Meeting notes discussing progress on radiators, engine mounting, Myth and Ripplet models, and carburation. | 8th Jan 1941 | Box 159 \ 5 scan0123 | |
| Actions on issues including piston seizures, clocks, direction indicators, and problems with freezing windows and doors. | 8th Jan 1941 | Box 159 \ 5 scan0124 | |
| List of action points and notes regarding various vehicle components and testing procedures. | 8th Jan 1941 | Box 159 \ 5 scan0125 | |
| Failure of the Marles steering worm with larger tyres, questioning materials and proposing an oil change. | 20th Jan 1941 | Box 159 \ 5 scan0126 | |
| Article on valve timing, carburation, and idling in a 6-cylinder induction system. | 20th Jan 1941 | Box 159 \ 5 scan0127 | |
| Delegating the task of liaising with Borg & Beck's regarding clutch centre damping. | 22th Jan 1941 | Box 159 \ 5 scan0128 | |
| Arranging a car for a trip to London and requesting a replacement for a faulty jack. | 26th Jan 1941 | Box 159 \ 5 scan0129 | |
| Arranging a car for a trip to London and a faulty jack on a Vauxhall. | 26th Jan 1941 | Box 159 \ 5 scan0130 | |
| Petrol rationing for a personal car used for company business at the Clan Foundry. | 28th Jan 1941 | Box 159 \ 5 scan0131 | |
| Announcing a Tester's Conference. | 30th Jan 1941 | Box 159 \ 5 scan0132 | |
| Chassis section development report detailing tests on engine 'running on', dual induction, and oil pressure. | 3rd Feb 1941 | Box 159 \ 5 scan0133 | |
| Endurance testing proposals for a B.60 engine and its components. | 3rd Feb 1941 | Box 159 \ 5 scan0134 | |
| Technical report on the development and testing of various induction systems and carburetters. | 3rd Feb 1941 | Box 159 \ 5 scan0135 | |
| Comparison between a 2-S.U. system and a dual Stromberg carburettor, focusing on fuel economy and the effects of damping. | 3rd Feb 1941 | Box 159 \ 5 scan0136 | |
| Requesting a car to be arranged to meet Mr. Clifton at the L.M.S. station in Derby. | 11th Feb 1941 | Box 159 \ 5 scan0137 | |
| Logbook note detailing issues with a sticking clutch, rattling timing gears, and poor slow-speed carburation. | 30th Jan 1941 | Box 159 \ 5 scan0138 | |
| Summary of subcontracted machining work for experimental chassis parts at Smedley's, Belper. | 3rd Feb 1941 | Box 159 \ 5 scan0139 | |
| Log sheet tracking the progress of work orders for various components and assemblies. | 1st Feb 1941 | Box 159 \ 5 scan0140 | |
| Log sheet of work orders for external contractors and internal departments. | 1st Feb 1941 | Box 159 \ 5 scan0141 | |
| Job sheet detailing the work to be done on several spring components. | 10th Jan 1941 | Box 159 \ 5 scan0142 | |
| Chassis section development, detailing ongoing jobs on the test bed. | 3rd Feb 1941 | Box 159 \ 5 scan0143 | |
| Endurance testing for a B.60 engine, detailing specific components for testing. | 3rd Feb 1941 | Box 159 \ 5 scan0144 | |
| The development and testing of various induction systems and carburetters. | 3rd Feb 1941 | Box 159 \ 5 scan0145 | |
| Comparing a 2-S.U. carburettor system with a dual Stromberg for fuel economy and performance. | 3rd Feb 1941 | Box 159 \ 5 scan0146 | |
| Minutes of the Testers' Monthly Conference discussing various vehicle components. | 4th Feb 1941 | Box 159 \ 5 scan0147 | |
| Progress report on vehicle modifications, component testing, and model updates. | 5th Feb 1941 | Box 159 \ 5 scan0148 | |
| Progress report on various car components and known issues. | 5th Feb 1941 | Box 159 \ 5 scan0149 | |
| Progress report on various vehicle components and associated issues. | 5th Feb 1941 | Box 159 \ 5 scan0150 | |
| Request for a report on vacuum ignition tests on a 4-B-30 model and for a monthly statement on experimental parts manufacture. | 5th Feb 1941 | Box 159 \ 5 scan0151 | |
| Confirming a 14-day delivery timeframe for wheels from Kelsey Hayes. | 11th Feb 1941 | Box 159 \ 5 scan0152 | |
| The use of the official notice board and changing water in fire buckets. | 27th Feb 1941 | Box 159 \ 5 scan0153 | |
| Notice about a Testers' conference to be held at the Clan Foundry. | 27th Feb 1941 | Box 159 \ 5 scan0154 | |
| Refinement of idling performance in high-power engines. | 4th Mar 1941 | Box 159 \ 5 scan0155 | |
| Request for a summary of work on an idling issue to avoid repeating previous efforts. | 4th Mar 1941 | Box 159 \ 5 scan0156 | |
| Announcing a Testers' conference to be held on 3rd March 1941. | 27th Feb 1941 | Box 159 \ 5 scan0157 | |
| The creation of instructions for modifications at Hythe Road. | 8th Mar 1941 | Box 159 \ 5 scan0158 | |
| Specifications for the first Myth camshaft, including duration, valve lift and overlap. | 8th Mar 1941 | Box 159 \ 5 scan0159 | |
| Minutes of the Testers' monthly conference discussing various vehicle components and modifications. | 3rd Mar 1941 | Box 159 \ 5 scan0160 | |
| Progress report on various vehicle components and planned actions. | 3rd Mar 1941 | Box 159 \ 5 scan0161 | |
| Development progress and issues on various car components. | 3rd Mar 1941 | Box 159 \ 5 scan0162 | |
| Various component issues including stores, test bed results, and investigations. | 3rd Mar 1941 | Box 159 \ 5 scan0163 | |
| The manufacture of experimental parts and investigations into gearbox, electrical, and carburetter issues. | 3rd Mar 1941 | Box 159 \ 5 scan0164 | |
| Meeting notes discussing the development and testing of shock absorbers, water pumps, springs, brake drums, and servos. | 3rd Mar 1941 | Box 159 \ 5 scan0165 | |
| Design and issues of the Ripplet spare wheel carrier. | 14th Mar 1941 | Box 159 \ 5 scan0166 | |
| Confirming five action points discussed regarding engine component development. | 18th Mar 1941 | Box 159 \ 5 scan0167 | |
| To all testers clarifying the procedure for sub-contract work from the Clan Foundry. | 19th Mar 1941 | Box 159 \ 5 scan0168 | |
| List of faults and observations for vehicle 12.B.V., with instructions for the workshop. | 24th Mar 1941 | Box 159 \ 5 scan0169 | |
| Handover of responsibility for maintaining charts on cylinder bore wear, oil, and petrol consumption. | 24th Mar 1941 | Box 159 \ 5 scan0170 | |
| Establishing a formal procedure for authorizing the manufacture of chassis pieces. | 24th Mar 1941 | Box 159 \ 5 scan0171 | |
| Outlining the process for creating and numbering drawings for purely experimental pieces. | 25th Mar 1941 | Box 159 \ 5 scan0172 | |
| Announcing a Tester's Conference for all testers. | 26th Mar 1941 | Box 159 \ 5 scan0173 | |
| Notice announcing a Tester's Conference to be held on Wednesday April 2nd. | 26th Mar 1941 | Box 159 \ 5 scan0174 | |
| Criticism of S.U. petrol pumps causing wireless interference and the possibility of screening them. | 27th Mar 1941 | Box 159 \ 5 scan0175 | |
| Request for a weight analysis and diagrammatic sketches of Morris and Vauxhall engines and gearboxes. | 30th Mar 1941 | Box 159 \ 5 scan0176 | |
| Report comparing the petrol consumption and specifications of the B-214-GA and B-24-AW chassis. | 1st Apr 1941 | Box 159 \ 5 scan0177 | |
| Minutes from a Testers' Conference discussing various vehicle components and issues. | 2nd Apr 1941 | Box 159 \ 5 scan0178 | |
| Progress report on experiments and issues for components like the camwheel, axle, and engine mounting. | 3rd Apr 1941 | Box 159 \ 5 scan0179 | |
| Meeting notes discussing updates on piston seizures, direction indicators, windows, wheels, tyres, and carburettors. | 3rd Apr 1941 | Box 159 \ 5 scan0180 | |
| Progress report on various car components including carburettors, springs, and engines. | 3rd Apr 1941 | Box 159 \ 5 scan0181 | |
| Meeting notes discussing the Myth engine, gearbox, brake drums, and electrical equipment for the Senior Range. | 3rd Apr 1941 | Box 159 \ 5 scan0182 | |
| Progress report on issues with thrust races, carburettors, shock absorbers, water pumps, servos, and small car development. | 3rd Apr 1941 | Box 159 \ 5 scan0183 | |
| Progress report on vehicle testing and issues, including an Austin car, Wilmot Breedon's car, and hand brake levers. | 3rd Apr 1941 | Box 159 \ 5 scan0184 | |
| Confirming the handover of a petrol pump from a Liberty engine for testing to ascertain its failure conditions. | 18th Apr 1941 | Box 159 \ 5 scan0185 | |
| Outlining development work to be performed on the No. 2 Meteor engine before endurance testing. | 21th Apr 1941 | Box 159 \ 5 scan0186 | |
| Request to arrange a green light indicator for gear changes, activated by the governor weights at a specific RPM. | 21th Apr 1941 | Box 159 \ 5 scan0187 | |
| Proposing the loan of a Merlin wheelcase to British Filters Ltd. for testing. | 25th Apr 1941 | Box 159 \ 5 scan0188 | |
| Faults on a loaned car requiring attention, including the front seat, fascia, and a creaking door. | 25th Apr 1941 | Box 159 \ 5 scan0189 | |
| Axle pinion failure on model 30.G.VII and requesting further investigation. | 27th Apr 1941 | Box 159 \ 5 scan0190 | |
| Responding to various items discussed at a Testers' Conference. | 28th Apr 1941 | Box 159 \ 5 scan0191 | |
| Table tracking oil consumption and component mileage for various chassis, with notes on engine modifications. | 30th Apr 1941 | Box 159 \ 5 scan0192 | |
| Requesting information and data on cylinder bore wear for various car models. | 30th Apr 1941 | Box 159 \ 5 scan0193 | |
| Minutes of a testers conference from May 1941, discussing component development and testing. | 5th May 1941 | Box 159 \ 5 scan0194 | |
| Meeting minutes or a progress report on various vehicle components and ongoing tests. | 5th May 1941 | Box 159 \ 5 scan0195 | |
| Progress report on various engine and chassis components. | 2nd Jun 1941 | Box 159 \ 5 scan0196 | |
| Minutes of a Testers' Conversation meeting discussing brakes, mountings, crankcases, and other components. | 2nd Jun 1941 | Box 159 \ 5 scan0197 | |
| Technical status report on component testing and modifications, including heaters, pistons, tyres, and carburettors. | 3rd Jun 1941 | Box 159 \ 5 scan0198 | |
| Progress report detailing actions and status on the Morris Box, Myth chassis, rationalised engine, and other components. | 3rd Jun 1941 | Box 159 \ 5 scan0199 | |
| List of tests and actions for carburettor consumption, a 4-cylinder engine, and an induction pipe. | 3rd Jun 1941 | Box 159 \ 5 scan0200 | |
| Meeting minutes discussing fan pulley inertia reduction and cylinder bore wear. | 3rd Jun 1941 | Box 159 \ 5 scan0201 | |
| Notes on a conference discussing requirements and issues with gearboxes, front suspension, brakes, clutch, and propeller shaft. | 23th Jun 1941 | Box 159 \ 5 scan0202 | |
| The performance of water pumps, transmission rattles, and cylinder bore wear. | 23th Jun 1941 | Box 159 \ 5 scan0203 | |
| Test report detailing cylinder bore wear measurements for various engine units. | 23th Jun 1941 | Box 159 \ 5 scan0204 | |
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