| Description | Date | Identifier | |
| Claim for damage to a hedge following an accident on Fosse Road. | 9th Nov 1926 | Box 181 \ M10 img116 | |
| Vehicle accident involving a broken steering lever during experimental trials. | 26th Nov 1938 | Box 181 \ M10 img117 | |
| Accident report detailing a pendulum steering lever failure during a 70 mph high-speed wobble test. | 12th Nov 1926 | Box 181 \ M10 img118 | |
| Inquiry regarding a potential unreported car accident on the Fosse Road, following a claim for a damaged fence. | 8th Nov 1926 | Box 181 \ M10 img119 | |
| Incident where an experimental car went into a ditch due to a steering lever breakage. | 9th Nov 1926 | Box 181 \ M10 img120 | |
| Accident report concerning a Lancia car and a motor-cyclist in foggy conditions. | 17th Feb 1927 | Box 181 \ M10 img121 | |
| Accident report detailing a collision between a Hispano car and a horse and cart near Long Eaton. | 21th Jun 1927 | Box 181 \ M10 img122 | |
| Minor accident involving the 8-EX car in Bristol. | 26th Aug 1927 | Box 181 \ M10 img123 | |
| Repair estimate from Sanderson & Holmes for an experimental car required as evidence for Police Court proceedings. | 12th Aug 1927 | Box 181 \ M10 img124 | |
| Response letter discussing performance issues like spring bumping and steering during a 10,000-mile road test in France. | 2nd Feb 1928 | Box 181 \ M10 img125 | |
| Accident report detailing a collision between test car 19-EX and a horse-drawn cart. | 8th Apr 1929 | Box 181 \ M10 img126 | |
| Compliment slip from The General Transport Co., Ltd. | 8th Apr 1929 | Box 181 \ M10 img127 | |
| Compliments slip from The General Transport Co. Ltd. attached to a handwritten list of vehicle components and notes. | 23th Mar 1928 | Box 181 \ M10 img128 | |
| Vehicle inventory and damage report for a car brought in for repairs. | 23th Mar 1928 | Box 181 \ M10 img129 | |
| Request for a complete report on an accident at Macclesfield. | 3rd Jun 1930 | Box 181 \ M10 img130 | |
| Accident report concerning car 19-EX being hit by a reversing corporation bus. | 10th Nov 1930 | Box 181 \ M10 img131 | |
| Legal letter discussing witness testimony and strategy following an accident at Hinckley. | 20th Mar 1931 | Box 181 \ M10 img132 | |
| Extract from a statement of claim regarding the particulars of negligence in an accident at Hinckley. | 10th Oct 1930 | Box 181 \ M10 img133 | |
| Accident report detailing a collision involving a 25 HP car, UL.7712, and a Willys Knight. | 10th Oct 1930 | Box 181 \ M10 img134 | |
| Statement detailing a road accident and the condition of the other vehicle involved. | 26th Mar 1931 | Box 181 \ M10 img135 | |
| Accident near Hinckley involving vehicle GLN-60. | 26th Mar 1931 | Box 181 \ M10 img136 | |
| Accident report concerning Experimental Car No. 27-EX. | 6th Aug 1931 | Box 181 \ M10 img137 | |
| Statement detailing a vehicle incident involving a Sunbeam Saloon and car 27-EX. | 6th Aug 1931 | Box 181 \ M10 img138 | |
| Diagram illustrating a collision between a Rolls Royce and a Sunbeam vehicle. | 26th Aug 1931 | Box 181 \ M10 img139 | |
| Inquiry regarding the status and cost of repairs for an accident to car 27-EX on August 5th. | 26th Aug 1931 | Box 181 \ M10 img140 | |
| Accident report for car 24-EX. | 27th May 1931 | Box 181 \ M10 img141 | |
| Proposal to repair the body of car 24-EX after an accident and mount it onto the chassis of 19-EX. | 10th Nov 1931 | Box 181 \ M10 img142 | |
| Accident report for vehicle 16-G4 detailing damage sustained in a collision with a Renault. | 19th Jan 1932 | Box 181 \ M10 img143 | |
| Car accident near Chateauroux, France. | 20th Dec 1932 | Box 181 \ M10 img144 | |
| Accident report detailing a collision between a car and a cyclist. | 1st Feb 1933 | Box 181 \ M10 img145 | |
| Details and settlement of a road accident in France involving a company vehicle and a cyclist. | 13th Feb 1933 | Box 181 \ M10 img146 | |
| Accident report detailing a collision with a cyclist in France. | 8th Feb 1933 | Box 181 \ M10 img147 | |
| Query regarding legal liability under French law in the event of an accident. | 20th Feb 1933 | Box 181 \ M10 img148 | |
| Reporting on a car, 19-EX, which has been badly damaged in an accident in France and requires return to Derby by train. | 20th Feb 1933 | Box 181 \ M10 img149 | |
| Loss of motor-car 19-EX and the proposal to use its engine in a replacement vehicle. | 20th Feb 1933 | Box 181 \ M10 img150 | |
| Car accident involving chassis 19 EA, including injuries to the occupants. | 18th Feb 1933 | Box 181 \ M10 img151 | |
| Witness statement regarding a car accident involving an 18 GIV vehicle. | 5th Jun 1933 | Box 181 \ M10 img152 | |
| Statement describing a car accident involving vehicle 18GW in France. | 5th Jun 1933 | Box 181 \ M10 img153 | |
| Statement detailing the damage and circumstances of a road accident. | 6th Dec 1933 | Box 181 \ M10 img154 | |
| Accident report detailing a collision in foggy weather at Shelton lock. | 6th Dec 1933 | Box 181 \ M10 img155 | |
| Investigation report into a Bentley axle failure and the circumstances of the resulting accident. | 18th Feb 1936 | Box 181 \ M10 img156 | |
| Damage to the wings of a chassis that arrived from France and a request for repair details to claim against the carriers. | 27th Aug 1936 | Box 181 \ M10 img157 | |
| Accident report detailing a collision between two vehicles in foggy weather. | 6th Dec 1933 | Box 181 \ M10 img158 | |
| Report detailing a car accident with a lorry. | 25th Jun 1936 | Box 181 \ M10 img159 | |
| Accident involving car 35-PK which overturned in a river near Vierzon, France. | 14th Aug 1924 | Box 181 \ M10 img160 | |
| Recovery of a damaged vehicle and an itemized list of damages following an accident. | 14th Aug 1924 | Box 181 \ M10 img161 | |
| Page 3 of a letter detailing the aftermath of an accident, vehicle damage, and medical expenses. | 13th Aug 1924 | Box 181 \ M10 img162 | |
| Accident involving car 35-PK in Vignoux-Sur-Barangeon, France. | 13th Aug 1924 | Box 181 \ M10 img163 | |
| Hand-drawn diagram illustrating the scene of a car accident between Vierzon and Bourges. | 13th Aug 1924 | Box 181 \ M10 img164 | |
| Letter requesting an opinion on the cause of an accident involving car 35-PK, specifically regarding speed and front-wheel brakes. | 18th Aug 1924 | Box 181 \ M10 img165 | |
| Follow-up report discussing a vehicle incident, brake performance, and a burnt exhaust valve on car 35-PK. | 12th Aug 1924 | Box 181 \ M10 img166 | |
| Staff health, travel plans, and vehicle maintenance issues. | 19th Aug 1924 | Box 181 \ M10 img167 | |
| Brake performance and a burnt exhaust valve from the report on car 35-PK. | 12th Aug 1924 | Box 181 \ M10 img168 | |
| Photographs of an accident involving a 35-PK car in France. | 20th Aug 1924 | Box 181 \ M10 img169 | |
| Private memo regarding car 35-PK's accident in France, questioning insurance, ownership, and recovery of documents. | 20th Aug 1924 | Box 181 \ M10 img170 | |
| Response to queries regarding a car accident involving vehicle 35 PK, discussing speed, braking, and skidding. | 21th Aug 1924 | Box 181 \ M10 img171 | |
| Letter discussing arrangements for shipping a car to England, delays in testing due to weather, and issues with broken front springs for car 9 EK. | 22th Aug 1913 | Box 181 \ M10 img172 | |
| Heel board modification and comparing the engine compression and performance of cars 7CA and 58NA. | 2nd Feb 1915 | Box 181 \ M11 img001 | |
| Extract discussing the modification and adoption of a C.I. Zephyr scraper ring piston for standard car and other engines. | 5th May 1915 | Box 181 \ M11 img002 | |
| Requesting the production of experimental pistons and test pieces from a new batch of Vanadium Aluminium alloy. | 1st Nov 1915 | Box 181 \ M11 img003 | |
| Follow-up letter regarding the progress on experimental pistons and test pieces. | 19th Nov 1915 | Box 181 \ M11 img004 | |
| Release of Vanadium Aluminium Alloy from the stores, with a handwritten instruction. | 22th Nov 1915 | Box 181 \ M11 img005 | |
| Instruction memo regarding the casting of Vanadium Aluminium Alloy into pistons and test pieces. | 22th Nov 1915 | Box 181 \ M11 img006 | |
| Chasing the progress of obtaining a set of pistons made from Vanadium Aluminium. | 7th Dec 1915 | Box 181 \ M11 img007 | |
| Availability of Vanadium Aluminium Alloy test pieces and piston castings. | 11th Dec 1915 | Box 181 \ M11 img008 | |
| The scrapping of experimental Vanadium Aluminium pistons due to being faulty castings. | 16th Dec 1915 | Box 181 \ M11 img009 | |
| Experiments with 'Eagle' and chassis pistons featuring multiple rings, and an additional set for Commander Briggs' car. | 19th Jul 1916 | Box 181 \ M11 img010 | |
| Type of aluminium pistons used in car 7-ca and proposing further tests on new designs. | 19th Sep 1916 | Box 181 \ M11 img011 | |
| The types of aluminium pistons fitted to cars and a request to press forward with testing new designs. | 19th Sep 1916 | Box 181 \ M11 img012 | |
| Instructing the works to press forward with standardising 7-ringed aluminium Zephyr pistons for the chassis. | 21th Sep 1916 | Box 181 \ M11 img013 | |
| The standardisation of an Aluminium Piston with a conical top and many rings for the Zephyr model. | 14th Sep 1916 | Box 181 \ M11 img014 | |
| Returning Standardisation Sheets for components due to a lack of experimental performance reports. | 19th Sep 1916 | Box 181 \ M11 img015 | |
| Instructions for modifying seven-ringed Zephyr type chassis pistons. | 2nd Oct 1916 | Box 181 \ M11 img016 | |
| Instruction to fit an experimental set of aluminium Zephyr pistons to car 7CA. | 16th Oct 1916 | Box 181 \ M11 img017 | |
| The fitting of Zephyr pistons with long skirts to a standard car, noting extra metal left for custom clearance. | 23th Oct 1916 | Box 181 \ M11 img018 | |
| Standardisation sheet for the 'After-the-War' chassis piston, delaying material orders until testing is complete. | 24th Oct 1916 | Box 181 \ M11 img019 | |
| Enclosing two index sheets detailing the history of chassis piston experiments X.2309 and X.2609. | 5th Mar 1917 | Box 181 \ M11 img020 | |
| List of completed chassis experiments detailing various piston and valve configurations ready for testing. | 15th Mar 1917 | Box 181 \ M11 img021 | |
| Record of specifications and instructions for Aluminium Zephyr Pistons, models E.10915 and E.11640. | 16th Oct 1917 | Box 181 \ M11 img022 | |
| Five different experimental piston and valve configurations ready for fitting and testing. | 28th Mar 1917 | Box 181 \ M11 img023 | |
| Overhaul and proposed improvements for a car engine. | 19th Apr 1917 | Box 181 \ M11 img024 | |
| Numbered list of component updates and engineering notes, page 2. | 18th Apr 1917 | Box 181 \ M11 img025 | |
| Experiment involving 7-ringed aluminium alloy pistons without a skirt, which were fitted to engine 7C-A and then removed. | 25th Apr 1917 | Box 181 \ M11 img026 | |
| Design decisions for the 7 CA car engine, including pistons, connecting rods, and camshafts. | 1st May 1917 | Box 181 \ M11 img027 | |
| Modifications and testing for a gearbox, suspension, and rear axle. | 1st May 1917 | Box 181 \ M11 img028 | |
| Update, index cards, and catalogue specifications for a filing cabinet. | 8th May 1917 | Box 181 \ M11 img029 | |
| The required quality and finish for tools in a tool kit. | 14th May 1917 | Box 181 \ M11 img030 | |
| From R. to EH. detailing requirements for car 7 CA, covering springing experiments, engine components, and an automatic starter switch. | 14th May 1917 | Box 181 \ M11 img031 | |
| From 'R' to 'E.H.' about car modifications to improve road handling and petrol economy. | 1st May 1917 | Box 181 \ M11 img032 | |
| Instructions to amend the acceleration value for the chassis 7 CA cam mechanism due to an increased roller size. | 1st May 1917 | Box 181 \ M11 img033 | |
| Accompanying drawing No. LeC. 805, which details the required head form for valves on chassis 7 CA. | 16th May 1927 | Box 181 \ M11 img034 | |
| Proposal to refurbish a Lanchester chassis to evaluate its gearbox for potential use on a Rolls-Royce car. | 3rd May 1917 | Box 181 \ M11 img035 | |
| Dynamometer testing of a Packard car for horsepower and fuel consumption, comparing its performance to their own designs. | 25th May 1917 | Box 181 \ M11 img036 | |
| Requesting car 7 C.A. be delivered to the Angel Hotel, Peterborough. | 1st Jun 1917 | Box 181 \ M11 img037 | |
| Carburetter and induction pipe options for Car 7 CA, referencing the C.H. and White Knave types. | 16th Jun 1917 | Box 181 \ M11 img038 | |
| Requesting a proper wiring scheme and drawings for a car chassis with a self-starter. | 13th Jun 1917 | Box 181 \ M11 img039 | |
| Expressing frustration over a delay in preparing a contact breaker for magneto experiments. | 13th Jun 1917 | Box 181 \ M11 img040 | |
| Dual-issue phenomenon in a car's fuel system: an air-lock caused by test piping and a low-speed jet blockage from grit after petrol failure. | 25th Jun 1919 | Box 181 \ M11 img041 | |
| Grit accumulation in a float chamber and proposing potential modifications. | 18th Jun 1919 | Box 181 \ M11 img042 | |
| Engine trouble on cars 7-CA and 49-GB caused by rotted petrol gauzes. | 26th Jun 1919 | Box 181 \ M11 img043 | |
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