| Description | Date | Identifier | |
| Departmental memo regarding fitting Dunlop detachable wheels to heavy cars. | 29th Oct 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page004 | |
| Trial set of detachable wheels from the Dunlop Tyre Co. to be fitted to the 'Charmer' 1162. | 29th Oct 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page005 | |
| Complaint to Dunlop regarding their detachable wheels and a subsequent proposal to fit a new set and order more. | 29th Oct 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page006 | |
| To Mr Spinney forwarding a note from Mr Royce concerning Dunlop detachable wheels. | 31th Oct 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page007 | |
| Departmental memo forwarding an attached copy of another memo to Mr. Barrington. | 4th Nov 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page008 | |
| Internal instruction to Mr Nadin to order two sets of Dunlop detachable wheels for the Experimental Department. | 5th Nov 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page009 | |
| Fitting of a trial set of Dunlop detachable wheels to chassis 1162. | 5th Nov 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page010 | |
| Issues with Dunlop Detachable Wire Wheels working loose due to a quick taper cone. | 11th Nov 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page011 | |
| Letter comparing various wire wheel designs, including Dunlop, Riley, and Rudge-Whitworth, with a recommendation for Dunlop wheels. | 18th Nov 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page012 | |
| The second page of a memorandum for Mr Johnson, ending with a recommendation to adopt something as standard and a signature. | 31th Mar 1921 | Box 1 \ 7 B001_X15 20 46 50 59-page013 | |
| Departmental memo regarding the fitting of Dunlop Detachable Wheels. | 23th Nov 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page014 | |
| Departmental memo regarding a delay in fitting Dunlop detachable wheels to 'The Charmer' pending modifications. | 25th Nov 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page015 | |
| Delaying the fitting of Dunlop detachable wheels to 'The Charmer' due to an unsatisfactory design. | 25th Nov 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page016 | |
| Departmental memo discussing the superiority of Dunlop versus Rudge-Whitworth wire wheels. | 28th Nov 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page017 | |
| From F.H.R. regarding the adoption of Dunlop Detachable Wire Wheels and the manufacture of suitable hubs. | 11th Dec 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page018 | |
| Departmental memo discussing the potential adoption of Dunlop wheels and wheel pivot placement. | 23th Dec 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page019 | |
| Departmental memo chasing the return of a Dunlop wire wheel that was out for inspection. | 21th Jan 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page020 | |
| Inspection report and design critique of a sample Dunlop Detachable Wheel. | 22th Jan 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page021 | |
| Page 2 of a typed document describing a disc with attached spokes. | 7th Feb 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page022 | |
| Requesting a report on the unsatisfactory standard design of Dunlop detachable wheels. | 7th Feb 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page023 | |
| Internal departmental memo regarding an order for Dunlop wire wheels for the Experimental Works. | 6th Feb 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page024 | |
| To Mr. Johnson regarding the status of detachable wheels, with a handwritten follow-up request about detachable rims. | 6th Jan 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page025 | |
| Departmental memo requesting a report on tests of Dunlop and other detachable wheels for standardisation. | 7th Feb 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page026 | |
| Departmental memo regarding the testing and redesign of Dunlop detachable wheels for the Austrian Trials cars. | 8th Feb 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page027 | |
| Providing opinions and recommendations on various wheel and rim experiments. | 28th Apr 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page028 | |
| Mr. Royce's remarks on an Urgency Report regarding front axles and wheel hubs. | 28th Apr 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page029 | |
| Wooden wheels with Michelin rims and the complexities of fitting wire wheels and brake drum design. | 2nd Nov 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page030 | |
| Wheel hub design modifications and collaboration with the Dunlop Company. | 2nd Jan 1917 | Box 1 \ 7 B001_X15 20 46 50 59-page031 | |
| Typed memorandum regarding instructions for Rudge-Whitworth people. | 11th Mar 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page032 | |
| Weekly report on the examination and repair of Austrian Trials Cars, detailing issues with cross members and Dunlop hubs. | 1st Jun 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page033 | |
| Technical report on vehicle component performance, including issues with an axle cap thread, water in the crankcase, and conditions in muddy terrain. | 1st Jun 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page034 | |
| Extract discussing the locking device and grub screws on Dunlop wheels, noting potential breakages and suggesting an improvement. | 28th Jul 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page035 | |
| Report on the performance of Dunlop Wheels following the Austrian Trials. | 21th Jul 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page036 | |
| Receiving experimental Dunlop wire wheels and the urgent need to fit them for testing. | 25th Jul 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page037 | |
| Departmental memo regarding the receipt and testing of Dunlop Wire Wheels. | 26th Jul 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page038 | |
| Preparation and inspection of Dunlop wire wheels with ball bearings for double rear brakes. | 1st Aug 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page039 | |
| Use of the Dunlop name for detachable wire wheels and the need for thorough testing before proceeding. | 2nd Sep 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page040 | |
| Note regarding new type Dunlop wheels and the receipt of dust excluders for spare wheels. | 20th Oct 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page041 | |
| Advocating for the use of wire wheels over wood wheels, especially for high-speed cars and for use abroad. | 28th Nov 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page042 | |
| Performance of wheels, specifically the risk of them self-tightening on hubs, and comparing R.W. Wheels to Dunlops. | 28th Nov 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page043 | |
| The difficulty in changing Dunlop detachable wheels due to a lack of interchangeability. | 28th Nov 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page044 | |
| Complaint from the Test Department about water ingress into the front hub axle nuts and proposing a solution. | 3rd Dec 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page045 | |
| Design considerations for Dunlop wire wheels and wheel hubs, referencing blueprint F3650. | 8th Dec 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page046 | |
| Fitment of Dunlop Detachable Wood Wheels, referencing print F.4375 and a modification to the locking point. | 9th Dec 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page047 | |
| Design of wood wheels, comparing Dunlop and Michelin arrangements. | 15th Dec 1913 | Box 1 \ 7 B001_X15 20 46 50 59-page048 | |
| Use of a square section ring for securing the sliding barrel on Dunlop wire wheels for the Austrian Trials cars. | 23th Jan 1914 | Box 1 \ 7 B001_X15 20 46 50 59-page049 | |
| The design of a securing ring for the sliding barrel on Dunlop wire wheels. | 24th Jan 1914 | Box 1 \ 7 B001_X15 20 46 50 59-page050 | |
| The fixing of the sliding barrel for Dunlop Wire Wheels, recommending a return to the old square section ring design. | 11th Feb 1914 | Box 1 \ 7 B001_X15 20 46 50 59-page051 | |
| Note on the satisfactory performance of 895 x 135 m/m Dunlop Wire Wheels fitted to vehicle 4.C.A. | 22th Feb 1914 | Box 1 \ 7 B001_X15 20 46 50 59-page052 | |
| Instruction request to convert the rear wheels on chassis 2300 due to non-interchangeable front and rear wheels. | 4th Mar 1914 | Box 1 \ 7 B001_X15 20 46 50 59-page053 | |
| The non-interchangeability of Dunlop wire wheels on car 2300. | 5th Mar 1914 | Box 1 \ 7 B001_X15 20 46 50 59-page054 | |
| Tool for removing the spring ring which retains the sliding locking piece of Dunlop detachable wheels. | 26th Mar 1914 | Box 1 \ 7 B001_X15 20 46 50 59-page055 | |
| Tool for removing the spring stopping for the locking barrel on Dunlop wire wheels. | 30th Mar 1914 | Box 1 \ 7 B001_X15 20 46 50 59-page056 | |
| Preference for Rudge-Whitworth wheels over Dunlop wheels due to manufacturing variations. | 20th Apr 1914 | Box 1 \ 7 B001_X15 20 46 50 59-page057 | |
| Tool for removing the spring stopping for the locking barrel on Dunlop wire wheels. | 27th Nov 1914 | Box 1 \ 7 B001_X15 20 46 50 59-page058 | |
| Extract discussing the design and comparison of road wheels for the 40/50 HP chassis. | 26th Apr 1917 | Box 1 \ 7 B001_X15 20 46 50 59-page059 | |
| Extract discussing the relative merits of Dunlop, Rudge-Whitworth, and Michelin road wheels for the 45/50 HP chassis. | 28th Apr 1917 | Box 1 \ 7 B001_X15 20 46 50 59-page060 | |
| Letter discussing the design and selection of detachable wheels for a standard chassis. | 20th Dec 1918 | Box 1 \ 7 B001_X15 20 46 50 59-page061 | |
| Continuation page discussing the benefits of certain spokes and rims, focusing on appearance and rust prevention for tyres. | 20th Dec 1918 | Box 1 \ 7 B001_X15 20 46 50 59-page062 | |
| Suggestion made by a Mr. Caswell about Dunlop Wire Wheels. | 10th Jan 1919 | Box 1 \ 7 B001_X15 20 46 50 59-page063 | |
| Strength and testing of wire wheels, referencing correspondence with Dunlops during the War. | 20th Sep 1916 | Box 1 \ 7 B001_X15 20 46 50 59-page064 | |
| Broken spokes in Dunlop wire wheels, comparing them to the more reliable American wheels rebuilt by the Houck Company. | 8th Aug 1916 | Box 1 \ 7 B001_X15 20 46 50 59-page065 | |
| Sketch showing the difference in spoke drilling for Dunlop and American built wire wheel rims. | 17th Jan 1919 | Box 1 \ 7 B001_X15 20 46 50 59-page066 | |
| Letter to the Dunlop Rubber Co. Ltd. regarding issues with the spoking scheme of wire wheels on cars running in America. | 17th Jan 1919 | Box 1 \ 7 B001_X15 20 46 50 59-page067 | |
| Special Dunlop wheels for a chassis intended for the American market. | 15th May 1919 | Box 1 \ 7 B001_X15 20 46 50 59-page068 | |
| Receipt of two experimental wheel designs from the Dunlop Company. | 6th Jun 1919 | Box 1 \ 7 B001_X15 20 46 50 59-page069 | |
| Complaint that the tyre valve position on supplied wheels makes them inaccessible. | 18th Sep 1919 | Box 1 \ 7 B001_X15 20 46 50 59-page070 | |
| The ineffectiveness of 'Fitters Stops' from Dunlops and the discovery of a better alternative. | 22th Sep 1919 | Box 1 \ 7 B001_X15 20 46 50 59-page071 | |
| Inquiry to Dunlops about supplying a demountable rim for a beaded tyre, as a better proposition than Warland or Houk wheels. | 23th Sep 1919 | Box 1 \ 7 B001_X15 20 46 50 59-page072 | |
| Fitment issues with Michelin disc wheels on the 1 EX chassis, comparing them to Dunlop wheels. | 23th Sep 1919 | Box 1 \ 7 B001_X15 20 46 50 59-page073 | |
| Weight comparison between Michelin disc wheels and Dunlop detachable wire wheels for front and rear applications. | 23th Sep 1919 | Box 1 \ 7 B001_X15 20 46 50 59-page074 | |
| Technical memorandum discussing improvements for temperature indicators, wheel hubs, and petrol tank filler gauges. | 2nd Dec 1919 | Box 1 \ 7 B001_X15 20 46 50 59-page075 | |
| Letter discussing the supply of straight-sided tyres, Dunlop wheels, and mechanical tyre pumps. | 12th May 1920 | Box 1 \ 7 B001_X15 20 46 50 59-page076 | |
| Policy and concerns regarding fitting Michelin disc wheels. | 19th May 1920 | Box 1 \ 7 B001_X15 20 46 50 59-page077 | |
| Improved method of spoking Dunlop wheels to eliminate bends in the spokes. | 28th May 1920 | Box 1 \ 7 B001_X15 20 46 50 59-page078 | |
| Technical memo discussing design and issues related to bodywork, steering, wheels, and springs. | 22th Jul 1920 | Box 1 \ 7 B001_X15 20 46 50 59-page079 | |
| The weight of a Rapson tyre and tube, and with a Dunlop wire wheel. | 24th Sep 1920 | Box 1 \ 7 B001_X15 20 46 50 59-page080 | |
| The approval of Michelin tyres as an alternative to Dunlops. | 25th Oct 1920 | Box 1 \ 7 B001_X15 20 46 50 59-page081 | |
| Three potential wheel types for the Goshawk 11 model. | 12th Jul 1921 | Box 1 \ 7 B001_X15 20 46 50 59-page082 | |
| Issues with a tool for removing detachable rims on Dunlop wire wheels, noting its incorrect shape and soft material. | 22th Jul 1922 | Box 1 \ 7 B001_X15 20 46 50 59-page083 | |
| Issue with a new type of Dunlop detachable rim at certain speeds. | 11th Sep 1922 | Box 1 \ 7 B001_X15 20 46 50 59-page084 | |
| Page number on a light blue divider sheet. | 16th Sep 1911 | Box 1 \ 7 B001_X15 20 46 50 59-page085 | |
| System for tracking and recording tyre mileage on motor cars. | 16th Sep 1911 | Box 1 \ 7 B001_X15 20 46 50 59-page086 | |
| Departmental memo detailing a committee's decision on the performance of Mogul Tyres compared to Dunlop's. | 28th Sep 1911 | Box 1 \ 7 B001_X15 20 46 50 59-page087 | |
| Recommending that a tire pressure tester should always be carried in the car. | 12th Oct 1911 | Box 1 \ 7 B001_X15 20 46 50 59-page088 | |
| Meeting minutes discussing the provision of tyre pressure testers and mechanical tyre pumps. | 28th Nov 1911 | Box 1 \ 7 B001_X15 20 46 50 59-page089 | |
| Meeting minutes discussing tyre pump designs, compressed air reservoirs, and tyre balancing. | 29th Nov 1911 | Box 1 \ 7 B001_X15 20 46 50 59-page090 | |
| Meeting minutes discussing tyre balancing issues with suppliers and the fitting of an air pump to an Austin car. | 11th Dec 1911 | Box 1 \ 7 B001_X15 20 46 50 59-page091 | |
| Meeting minutes concerning tyres, air pumps, and tyre pressure testers. | 22th Dec 1911 | Box 1 \ 7 B001_X15 20 46 50 59-page092 | |
| Discussion about the suitability and fitting of a tyre pump to a customer's chassis. | 30th Dec 1911 | Box 1 \ 7 B001_X15 20 46 50 59-page093 | |
| Copy of a letter from a customer detailing impressive tyre mileage on their cars. | 30th Dec 1911 | Box 1 \ 7 B001_X15 20 46 50 59-page094 | |
| Departmental memo concerning a letter from R.P. Doxford and his offer to send a tyre. | 2nd Jan 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page095 | |
| Departmental memo regarding sending a tyre for Mr. Doxford as requested. | 8th Feb 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page096 | |
| The sizes of various tyres when fitted and inflated to 80 lbs. | 30th Jul 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page097 | |
| Method for repairing damaged beading of outer covers. | 30th Jul 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page098 | |
| Report from the Indian Depot detailing required vehicle alterations due to local conditions. | 17th Aug 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page099 | |
| Modifications for carburetter water circulation, radiator mascots, and side footboard treads. | 17th Aug 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page100 | |
| Vehicle component performance and recommendations for use in hot climates. | 24th Aug 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page101 | |
| Article from 'The Autocar' describing Macintosh steel-studded tyres with a fibre compound tread. | 24th Aug 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page102 | |
| Feedback regarding the performance and wear of Pirelli tyres from two sources. | 26th Jul 1912 | Box 1 \ 7 B001_X15 20 46 50 59-page103 | |
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