| Description | Date | Identifier | |
| Letter from Dunlop Rubber Co. Ltd. regarding the noise and tread design of experimental tyres. | 26th Apr 1933 | Box 157 \ 1 scan0084 | |
| Blueprint detailing the dimensions of a low pressure Magna balloon tyre and its rim. | 30th Jun 1932 | Box 157 \ 1 scan0085 | |
| Blueprint showing the approximate inflated shape and dimensions of a Dunlop 8.25-15 extra low pressure tyre on a 5.50E rim. | 26th Apr 1933 | Box 157 \ 1 scan0086 | |
| Blueprint showing the approximate inflated shape and dimensions of a Dunlop 9.00-16 extra low pressure tyre on a 6.50 F rim. | 28th Apr 1933 | Box 157 \ 1 scan0087 | |
| Letter from Dunlop confirming the dispatch of six 5.50-18 tyres with a modified tread pattern for testing. | 31th May 1933 | Box 157 \ 1 scan0088 | |
| Letter from Dunlop Rubber Co. Ltd. concerning the despatch of various tyre sets for testing. | 22th Jun 1933 | Box 157 \ 1 scan0089 | |
| The stencil position on Dunlop Standard and 'Fort' passenger car tyres. | 26th Jun 1933 | Box 157 \ 1 scan0090 | |
| Letter to Dunlop Rubber Co. about power losses in tyres and vehicle testing results. | 8th Jul 1933 | Box 157 \ 1 scan0091 | |
| Page 2 of a letter to The Dunlop Rubber Co. Ltd. regarding engine output and tyre performance. | 8th Jul 1933 | Box 157 \ 1 scan0092 | |
| Graph illustrating transmission power losses for a Bentley, plotting Brake Horsepower (BHP) against RPM. | 11th Jul 1933 | Box 157 \ 1 scan0093 | |
| Letter from Dunlop Rubber Co. discussing tyre power transmission efficiency, testing parameters, and offering to supply different tyre constructions. | 11th Jul 1933 | Box 157 \ 1 scan0094 | |
| Receipt of Dunlop tyres for competition on Bentley cars and questioning the payment terms. | 12th Jul 1933 | Box 157 \ 1 scan0095 | |
| Internal request to order six 6 x 18 inch outer covers (tyres) from Dunlops. | 17th Oct 1933 | Box 157 \ 1 scan0096 | |
| Order for Dunlop Rubber Co. to send five tyre covers and tubes to a customer in France. | 29th Nov 1933 | Box 157 \ 1 scan0097 | |
| Inquiry to Dunlop Rubber Co. Ltd. about track tyres for a Bentley car for running at speeds over 100 m.p.h. | 2nd Dec 1933 | Box 157 \ 1 scan0098 | |
| Letter from Dunlop Rubber Co., Ltd. regarding a request to make a special 5.500/18' tyre, asking for further specifications. | 5th Dec 1933 | Box 157 \ 1 scan0099 | |
| Letter to Dunlop Rubber Co. Ltd. regarding tyre requirements for high-speed testing at Montlhéry. | 7th Dec 1933 | Box 157 \ 1 scan0100 | |
| Letter from Dunlop confirming the dispatch of five track racing tyre covers and recommending a running pressure. | 11th Dec 1933 | Box 157 \ 1 scan0101 | |
| Internal order request for five Dunlop track racing covers for the streamlined Bentley car. | 12th Dec 1933 | Box 157 \ 1 scan0102 | |
| Letter from Dunlop Rubber Co. Ltd. acknowledging correspondence from W. A. Robotham. | 12th Dec 1933 | Box 157 \ 1 scan0103 | |
| Letter to The Dunlop Rubber Co Ltd thanking them for promptly sending track tyres. | 12th Dec 1933 | Box 157 \ 1 scan0104 | |
| Letter from Dunlop Rubber Co. Ltd. regarding the supply and testing of new F.4. tyres for a 40/50 Phantom chassis. | 12th Jan 1934 | Box 157 \ 1 scan0105 | |
| Letter to Dunlop Rubber Co. Ltd. regarding the testing of 7.00-19 Tyres on a Phantom chassis. | 15th Jan 1934 | Box 157 \ 1 scan0106 | |
| Cover letter for an attached letter from Dunlop Rubber Co. about proposed changes to tyre tread patterns. | 24th Jan 1934 | Box 157 \ 1 scan0107 | |
| Copy of a letter from Dunlop Rubber Co. Ltd. regarding an impending change to tyre tread patterns. | 17th Jan 1934 | Box 157 \ 1 scan0108 | |
| Blueprint for a new Dunlop tyre, detailing an increase in tread width and potential interference. | 25th Jan 1934 | Box 157 \ 1 scan0109 | |
| Confirming the receipt of Dunlop tyres and tubes to be fitted to a Phantom 10,000 miles test car. | 31th Jan 1934 | Box 157 \ 1 scan0110 | |
| Letter from Dunlop discussing tyre and wheel fitment suggestions for an experimental chassis. | 6th Apr 1934 | Box 157 \ 1 scan0111 | |
| Letter to Dunlop Rubber Co. Ltd. regarding a request for 18 x 7.00' tyres and modified wheels for a 40/50 HP Chassis. | 7th Apr 1934 | Box 157 \ 1 scan0112 | |
| Letter from Dunlop Rubber Co. Ltd. regarding the supply and modification of tyres and wheels for a 40/50 HP Chassis. | 9th Apr 1934 | Box 157 \ 1 scan0113 | |
| Letter to Dunlop Rubber Co. Ltd. detailing running test requirements for dynamometer tyres on a 40/50 Chassis. | 20th Apr 1934 | Box 157 \ 1 scan0114 | |
| Blueprint of a 40/50 Chassis with 20/25 Wheel Hubs showing various dimensions. | 20th Apr 1934 | Box 157 \ 1 scan0115 | |
| Letter from Dunlop regarding the replacement and inspection of solid tyred wheels and a subsequent test failure. | 23th Apr 1934 | Box 157 \ 1 scan0116 | |
| Letter from Dunlop Rubber Co. concerning solid tyres and wheels for dynamometer tests. | 30th Apr 1934 | Box 157 \ 1 scan0117 | |
| Letter from Dunlop Rubber Co. detailing temperature testing procedures for a test hole. | 30th Apr 1934 | Box 157 \ 1 scan0118 | |
| Quotation from Dunlop for special 8' tyres and new dynamometer wheels for Vulture chassis gearbox tests. | 1st May 1934 | Box 157 \ 1 scan0119 | |
| Letter to the Dunlop Rubber Co. Ltd. regarding peculiar front tyre wear on a car returned from testing in France. | 1st May 1934 | Box 157 \ 1 scan0120 | |
| Letter from Dunlop Rubber Co. Ltd. acknowledging correspondence and advising a follow-up. | 3rd May 1934 | Box 157 \ 1 scan0121 | |
| Letter from Dunlop Rubber Co. arranging an inspection of '90' tyres and preparing to send tyres for the 20/25 model. | 4th May 1934 | Box 157 \ 1 scan0122 | |
| Two invoices from the Dunlop Rubber Co. Ltd. for tubes and covers, requesting a covering order for payment. | 18th May 1934 | Box 157 \ 1 scan0123 | |
| Covering letter regarding a communication with Dunlop Rubber Co. about tyres. | 24th May 1934 | Box 157 \ 1 scan0124 | |
| Letter to The Dunlop Rubber Co. Ltd. inquiring about available tyre tread types. | 22th Jun 1934 | Box 157 \ 1 scan0125 | |
| Wheel and tyre specifications for the 'Spectre' project. | 22th Jun 1934 | Box 157 \ 1 scan0126 | |
| Letter from Dunlop Rubber Co. Ltd. concerning the availability and production of 7.50-17 tyres. | 25th Jun 1934 | Box 157 \ 1 scan0127 | |
| Order office request for four Dunlop Covers size 7 x 18, '90' Pattern, for use on 29-EX. | 3rd Jul 1934 | Box 157 \ 1 scan0128 | |
| Internal order memo for 5 Dunlop tyre covers for a 20-G-IV vehicle. | 17th Jul 1934 | Box 157 \ 1 scan0129 | |
| Ordering of racing tyres from Dunlops for E.R. Hall's car. | 18th Jul 1934 | Box 157 \ 1 scan0130 | |
| To Roy requesting an order for two sets of Dunlop tyres for the Spectre. | 31th Jul 1934 | Box 157 \ 1 scan0131 | |
| Request to order tyre covers from Fort Dunlop for Cadillac, Graham and Essex 6 models. | 17th Sep 1934 | Box 157 \ 1 scan0132 | |
| The selection of Dunlop tyres for a Bentley chassis, replacing a noisier type. | 24th Sep 1934 | Box 157 \ 1 scan0133 | |
| The order of Dunlop Inner Tubes for a Cadillac car. | 6th Oct 1934 | Box 157 \ 1 scan0134 | |
| Order for an additional set of Dunlop tyres to compare different patterns. | 19th Oct 1934 | Box 157 \ 1 scan0135 | |
| Request to order five Dunlop tyres for experimental tests. | 26th Oct 1934 | Box 157 \ 1 scan0136 | |
| Urgent request to order and dispatch Dunlop tyres and tubes to France. | 26th Oct 1934 | Box 157 \ 1 scan0137 | |
| Request to Dunlop Ltd. for deflection rating curves for specific tyre sizes. | 27th Oct 1934 | Box 157 \ 1 scan0138 | |
| Letter from Dunlop Rubber Co. enclosing blueprints for tyre deflection rating curves. | 30th Oct 1934 | Box 157 \ 1 scan0139 | |
| Load-deflection curves for a 7.00-18 Dunlop Fort '90' Tyre. | 30th Oct 1934 | Box 157 \ 1 scan0140 | |
| Graph showing load-deflection curves for a 7.50-17 Dunlop Fort '90' tyre at different pressures. | 30th Oct 1934 | Box 157 \ 1 scan0141 | |
| Introduction of new Dunlop '90' pattern tyres to replace the existing 'MA.2' stock. | 30th Oct 1934 | Box 157 \ 1 scan0142 | |
| Standardization of a new Dunlop tyre pattern, type '90', to replace the existing 'MA.2' pattern. | 31th Oct 1934 | Box 157 \ 1 scan0143 | |
| Replacement of M.A. type Dunlop tyres with the '90' type, and concerns about road holding perception. | 7th Nov 1934 | Box 157 \ 1 scan0144 | |
| Letter to the Dunlop Rubber Co. Ltd. concerning the testing of the '90' type tyre tread. | 16th Nov 1934 | Box 157 \ 1 scan0145 | |
| Letter discussing tyre tread requirements, steering performance issues, and proposals for further technical collaboration on tyre development. | 16th Nov 1934 | Box 157 \ 1 scan0146 | |
| Requesting an opinion on Series '90' Dunlop tyres and noting a potential problem with heavy steering. | 17th Oct 1934 | Box 157 \ 1 scan0147 | |
| Letter from Dunlop Rubber Co. Ltd. regarding technical liaison and tyre development. | 19th Nov 1934 | Box 157 \ 1 scan0148 | |
| Urgent internal memo to order Dunlop tires and tubes for delivery to France. | 20th Nov 1934 | Box 157 \ 1 scan0149 | |
| Comparison of steering wheel effort with Standard Dunlop Fort Tyres & Dunlop Fort 90 Tyres on a 25 HP chassis. | 22th Nov 1934 | Box 157 \ 1 scan0150 | |
| Correspondence to Dunlop Rubber Co. Ltd. regarding tyre testing results on a Cadillac 16. | 26th Nov 1934 | Box 157 \ 1 scan0151 | |
| Letter from Dunlop Rubber Co. Ltd. regarding technical data for tyres and collaboration on independent wheel suspension. | 27th Nov 1934 | Box 157 \ 1 scan0152 | |
| Specification comparison between two tyre models, Fort '90' and MA-2. | 23th Nov 1934 | Box 157 \ 1 scan0153 | |
| Comparison of specifications for two different types of tires, 'Fort '90'' and 'M.A-2'. | 23th Nov 1934 | Box 157 \ 1 scan0154 | |
| Order for five 7.50 x 17 Dunlop Wheels for a Spectre Chassis. | 6th Dec 1934 | Box 157 \ 1 scan0155 | |
| To the Order Office approving the new Dunlop Schrader valve and cover. | 3rd Jan 1935 | Box 157 \ 1 scan0156 | |
| Approval to adopt the Type 90 Dunlop tyre for 20/25 and 40/50 HP chassis following successful testing. | 11th Jan 1935 | Box 157 \ 1 scan0157 | |
| Performance and stock of new Dunlop tyres. | 14th Jan 1935 | Box 157 \ 1 scan0158 | |
| The performance and non-skidding characteristics of Dunlop 90 type tyres. | 15th Jan 1935 | Box 157 \ 1 scan0159 | |
| Delays in the manufacturing and delivery of new Dunlop Type 90 tyres. | 6th Jan 1935 | Box 157 \ 1 scan0160 | |
| Postscript to a memo clarifying an agreement to fit M.A.2 tyres until the new Dunlop '90' type becomes available. | 16th Jan 1935 | Box 157 \ 1 scan0161 | |
| Premature advertisement of Dunlop tyres, using up old stock, and testing concerns with the new '90' model. | 16th Jan 1935 | Box 157 \ 1 scan0162 | |
| New '90' type Dunlop tyres and an inquiry to obtain a set for trial. | 17th Jan 1935 | Box 157 \ 1 scan0163 | |
| Trial and potential adoption of new '90' Dunlop tyres. | 25th Jan 1935 | Box 157 \ 1 scan0164 | |
| Letter from Dunlop Rubber Co. Ltd. confirming the despatch and specifications of 'Fort 90' tyres. | 29th Jan 1935 | Box 157 \ 1 scan0165 | |
| Requesting an opinion on the suitability of new Dunlop '90' tyres for the 3 1/2-litre Bentley. | 29th Jan 1935 | Box 157 \ 1 scan0166 | |
| Requesting a reply concerning the delivery of new '90' Dunlop Tyres. | 1st Feb 1935 | Box 157 \ 1 scan0167 | |
| Lack of experience with Dunlop '90' tyres on the Bentley and arranging a test. | 2nd Feb 1935 | Box 157 \ 1 scan0168 | |
| Requesting an order for Dunlop '90' tyres for a Bentley. | 4th Feb 1935 | Box 157 \ 1 scan0169 | |
| Comparison of the new Dunlop '90' tyres against the standard type, finding them misleadingly advertised. | 4th Feb 1935 | Box 157 \ 1 scan0170 | |
| The standardisation of new '90' Dunlop tyres and their comparison to the 'Silent' tyre. | 7th Feb 1935 | Box 157 \ 1 scan0171 | |
| Letter from Dunlop Rubber Co. offering the use of their test facilities for chassis testing. | 12th Feb 1935 | Box 157 \ 1 scan0172 | |
| Letter from Dunlop Rubber Co. Ltd. regarding the relative riding properties of the MA.2 and '90' pattern tyres. | 13th Feb 1935 | Box 157 \ 1 scan0173 | |
| Letter discussing the results of tests comparing the riding qualities of MA.2 tyres against the '90' pattern. | 12th Feb 1935 | Box 157 \ 1 scan0174 | |
| Report comparing the riding comfort of 'Fort M.A.2' and 'Fort '90'' tyres using blindfold and accelerometer tests. | 7th Feb 1935 | Box 157 \ 1 scan0175 | |
| Requesting an order for five Dunlop road wheels and tyres of size 6' x 17'. | 15th Feb 1935 | Box 157 \ 1 scan0176 | |
| Suspension modifications required to fit smaller wheels and reduce the gear ratio. | 15th Feb 1935 | Box 157 \ 1 scan0177 | |
| Letter from Dunlop Rubber Co. Ltd. confirming the supply of five wire wheels for a 20/25 HP chassis. | 21th Feb 1935 | Box 157 \ 1 scan0178 | |
| Letter from Dunlop Rubber Co. concerning accommodation for balance units on experimental wire wheels for a 40/50 HP chassis. | 22th Feb 1935 | Box 157 \ 1 scan0179 | |
| Letter to Dunlop Rubber Co. Ltd. regarding the ordering and delivery of specific tyres and wheels. | 25th Feb 1935 | Box 157 \ 1 scan0180 | |
| 'Spectre' tyre sizes and their sensitivity to pressure. | 25th Feb 1935 | Box 157 \ 1 scan0181 | |
| Urgent request to order 12 'Spectre' tyres, type '90', size 7' x 18'. | 25th Feb 1935 | Box 157 \ 1 scan0182 | |
| Letter to the Dunlop Rubber Co. Ltd. concerning the delivery and ordering of tyres. | 25th Feb 1935 | Box 157 \ 1 scan0183 | |
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