| Description | Date | Identifier | |
| Request for an inspection of worn parts on the Goshawk-11 car after completing 10,000 miles. | 29th Apr 1922 | Box 21 \ 4 Scan099 | |
| Telegram received by telephone regarding travel arrangements. | 22th Mar 1934 | Box 21 \ 4 Scan100 | |
| To Stores to despatch a Dunlop tyre cover for the Experimental Delage Car to Mr. Day at no charge. | 24th May 1922 | Box 21 \ 4 Scan101 | |
| Comparison between Rudge-Whitworth and Dunlop detachable wire wheels. | 2nd Jun 1922 | Box 21 \ 4 Scan102 | |
| Purchase of Dunlop Magnum canvas tyre covers and the switch to cord fabric tyres. | 9th Jun 1922 | Box 21 \ 4 Scan103 | |
| The performance and issues found with a Delage car. | 26th Jun 1922 | Box 21 \ 4 Scan104 | |
| Report page on a vehicle breakdown, comparing magneto and battery ignition systems and concluding with a recommendation. | 1st Jul 1922 | Box 21 \ 4 Scan105 | |
| License for Delage car X.F.9531. | 1st Jul 1922 | Box 21 \ 4 Scan106 | |
| Dispatch of a license for a Delage car. | 1st Jul 1922 | Box 21 \ 4 Scan107 | |
| Thanking a colleague for enclosing the licence for the Delage car. | 3rd Jul 1922 | Box 21 \ 4 Scan108 | |
| Letter to Mr. Hives enquiring about borrowing a Fiat or Delage that was returned for sale. | 2nd Aug 1922 | Box 21 \ 4 Scan109 | |
| The availability of a Delage car and a Fiat car. | 1st Aug 1922 | Box 21 \ 4 Scan110 | |
| Typed memo requesting an update on the completion and sale availability of Delage and Fiat cars. | 16th Aug 1922 | Box 21 \ 4 Scan111 | |
| From 'Da.' to 'hs.' concerning the urgent need to repair and sell a Delage car, as per Mr. Royce's instruction. | 14th Sep 1922 | Box 21 \ 4 Scan112 | |
| The return of a Delage car to Derby before its sale. | 16th Sep 1922 | Box 21 \ 4 Scan113 | |
| Inquiry about the sales availability of a Delage car, referencing an attached document. | 20th Sep 1922 | Box 21 \ 4 Scan114 | |
| Requirement of a Delage car at Derby for one week prior to its sale. | 25th Sep 1922 | Box 21 \ 4 Scan115 | |
| Request to source a new steering wheel for a Delage car. | 11th Nov 1922 | Box 21 \ 4 Scan116 | |
| For Mr. Murray Smith regarding the delivery of a new steering wheel for a Delage car. | 11th Dec 1922 | Box 21 \ 4 Scan117 | |
| The availability of the Delage Experimental Car or a similar small car for the retail Sales Department. | 11th Dec 1922 | Box 21 \ 4 Scan118 | |
| 'Delage' car, with an instruction not to send it to London. | 13th Dec 1922 | Box 21 \ 4 Scan119 | |
| Steering tests conducted on a Delage car, detailing wobbling issues and the effects of different tyres and spring settings. | 14th Dec 1922 | Box 21 \ 4 Scan120 | |
| Particulars of Delage side steering rod springs. | 15th Dec 1922 | Box 21 \ 4 Scan121 | |
| Request for three new Raybestos clutch discs for a Delage car. | 22th Dec 1922 | Box 21 \ 4 Scan122 | |
| Instruction sheet with a diagram illustrating a load test on a Delage steering wheel. | 9th Nov 1923 | Box 21 \ 4 Scan123 | |
| Comparison of the 40/50 HP steering with the Delage steering system. | 10th Jan 1923 | Box 21 \ 4 Scan124 | |
| Comparative analysis of steering effort and road shock transmission between a 40/50 HP model and a Delage car. | 10th Jan 1923 | Box 21 \ 4 Scan125 | |
| Comparative test of steering effort between a 40/50 model and a Delage car. | 2nd Jan 1923 | Box 21 \ 4 Scan126 | |
| Tests conducted to analyze steering wobbles on a 40/50 chassis. | 2nd Jan 1923 | Box 21 \ 4 Scan127 | |
| Tests conducted to understand the cause and effect of steering wobbles in vehicles. | 2nd Jan 1923 | Box 21 \ 4 Scan128 | |
| Tests to understand the causes of vehicle 'wobbles', focusing on tyre pressure, tyre type and chassis weight. | 2nd Jan 1923 | Box 21 \ 4 Scan129 | |
| Analysis of chassis and steering wobble, its causes, and methods for reduction. | 2nd Jan 1923 | Box 21 \ 4 Scan130 | |
| Steering wobble, comparing different vehicles and detailing experiments and alterations to reduce or eliminate it. | 13th Jan 1923 | Box 21 \ 4 Scan131 | |
| Query about the reasons for a surprisingly large pivot inclination on the Goshawk model's front axle. | 13th Jan 1923 | Box 21 \ 4 Scan132 | |
| Technical query about the specifications of a worm and wheel steering system, comparing Delage pivots to a 40/50 model. | 26th Jan 1923 | Box 21 \ 4 Scan133 | |
| Asking for test results on Delage springs and correcting the pitch angle on a worm helix. | 26th Jan 1923 | Box 21 \ 4 Scan134 | |
| List of specifications and dimensions for a 'Delage' worm gear. | 5th Feb 1923 | Box 21 \ 4 Scan135 | |
| Correspondence regarding sending a Delage car to Lillie Hall in London to be sold. | 1st Apr 1923 | Box 21 \ 4 Scan136 | |
| Inventory list of a Delage tool kit as received. | 9th Apr 1923 | Box 21 \ 4 Scan137 | |
| Arranging the delivery of an unregistered Delage car from the Experimental Department to Conduit Street. | 10th Apr 1923 | Box 21 \ 4 Scan138 | |
| Delage car collected by Mr. Hancock without the delivery notes. | 11th Apr 1923 | Box 21 \ 4 Scan139 | |
| Sale of a Delage car which has arrived at Lillie Hall. | 21th Apr 1923 | Box 21 \ 4 Scan140 | |
| Request for mileage and other information on a Delage car being offered for sale. | 4th May 1923 | Box 21 \ 4 Scan141 | |
| Brief memo regarding the mileage of a Delage car. | 10th May 1923 | Box 21 \ 4 Scan142 | |
| Road test report on a 5 Litre Supercharged Mercedes, detailing its performance, handling, and braking. | 27th Nov 1934 | Box 21 \ 4 Scan143 | |
| Road test report on a 4 Litre 100 m.p.h. Delage and a comparison with a 3 1/2 Bentley. | 27th Nov 1934 | Box 21 \ 4 Scan144 | |
| Photograph of a Delage car from the 1920s with a handwritten note about its ownership and donation. | 1st Jul 1979 | Box 21 \ 4 Scan145 | |
| Issue of batteries running down on Post War Cars and comparing generator performance with American models. | 23th Oct 1920 | Box 21 \ 5 Scan001 | |
| Letter from the American branch requesting an update on replacement generators for the faulty Lucas models. | 23th Oct 1920 | Box 21 \ 5 Scan002 | |
| Evaluation and potential issues of several American cars received for examination. | 11th Dec 1920 | Box 21 \ 5 Scan003 | |
| Performance data report from a Ticknall Hill Test comparing Essex, Dodge, and Buick cars. | 22th Dec 1920 | Box 21 \ 5 Scan004 | |
| Performance data table showing time versus speed for a 2nd Buick Car. | 3rd Jan 1920 | Box 21 \ 5 Scan005 | |
| Technical specifications and performance data for a Dodge car. | 3rd Jan 1920 | Box 21 \ 5 Scan006 | |
| Technical specifications and observations on a Dodge Car. | 1st Nov 1919 | Box 21 \ 5 Scan007 | |
| Continued technical specifications for a Dodge Car. | 31th Dec 1920 | Box 21 \ 5 Scan008 | |
| Test drive report and negative assessment of a Dodge car, comparing it to Ford and Essex models. | 31th Dec 1920 | Box 21 \ 5 Scan009 | |
| Advising the Sales Department of four American cars for sale and requesting their cost. | 14th Jan 1921 | Box 21 \ 5 Scan010 | |
| Pricing and sale of second-hand American cars. | 26th Jan 1921 | Box 21 \ 5 Scan011 | |
| Comparative performance data for a tyre pump and the lowest speeds of various motor cars. | 17th Mar 1921 | Box 21 \ 5 Scan012 | |
| Dynamometer test results for a Dodge car with an open exhaust. | 1st Apr 1921 | Box 21 \ 5 Scan013 | |
| Table comparing dynamometer ratios for Humber, Dodge, and Hupmobile cars. | 24th May 1921 | Box 21 \ 5 Scan014 | |
| Disposal and pricing of several used American cars. | 24th May 1921 | Box 21 \ 5 Scan015 | |
| Selling American cars, a Delage, and Buicks, and accepting the best possible offers. | 26th May 1921 | Box 21 \ 5 Scan016 | |
| To Mr. Hives regarding the sale of a Hupmobile and a Dodge car at Lillie Hall. | 30th Jun 1921 | Box 21 \ 5 Scan017 | |
| Confirming the delivery of Hupmobile and Dodge cars to Lillie Hall for disposal and sale. | 1st Jul 1921 | Box 21 \ 5 Scan018 | |
| Record of the total mileage covered by a Dodge Car. | 1st Jul 1922 | Box 21 \ 5 Scan019 | |
| Requesting the transfer and modification of several car chassis for testing and design research. | 1st Jul 1922 | Box 21 \ 5 Scan020 | |
| The dispatch of a D.F.P. chassis and the return of a battery. | 15th Jun 1922 | Box 21 \ 5 Scan021 | |
| Brief memo arranging the delivery of a D.F.P. car and two others to Lillie Hall. | 15th Jun 1922 | Box 21 \ 5 Scan022 | |
| Disposal of D.F.P., Essex, and Marmon cars, and suggesting the evaluation of a new 24 HP Sunbeam. | 14th Jun 1922 | Box 21 \ 5 Scan023 | |
| Brief typed inquiry regarding the expected delivery of a D.F.P. car. | 15th Jun 1922 | Box 21 \ 5 Scan024 | |
| Forwarding of a D.F.P. Car to London for disposal. | 25th May 1922 | Box 21 \ 5 Scan025 | |
| Instructions to despatch two Goshawk springs via aeroplane to the Paris Depot for onward delivery to Mr. Haldenby in Grenoble. | 1st Jun 1922 | Box 21 \ 5 Scan026 | |
| The disappointing performance and technical issues of a purchased D.F.P. car. | 17th May 1922 | Box 21 \ 5 Scan027 | |
| Report comparing a chassis unfavorably to a Fiat, detailing its technical defects and issues with seized components. | 24th Mar 1922 | Box 21 \ 5 Scan028 | |
| Instruction sheet regarding a car license for a D.F.P. car. | 24th Mar 1922 | Box 21 \ 5 Scan029 | |
| Performance issues, tuning arrangements, and delivery delays for a D.F.P. car. | 24th Mar 1922 | Box 21 \ 5 Scan030 | |
| Confirmation of a wire sent to Derby asking if a despatch for Essex has been sent. | 24th Mar 1922 | Box 21 \ 5 Scan031 | |
| Arranging the delivery of a D.F.P. Chassis and transport for Mr. Evans to interview Messrs. Bentleys'. | 24th Mar 1922 | Box 21 \ 5 Scan032 | |
| Specifications and test results for the D.F.P. Chassis, 2850 EM. | 24th Mar 1922 | Box 21 \ 5 Scan033 | |
| Arranging for Bentleys to repair a D.F.P. chassis under the pretense it is for an engineer's private use. | 23th Mar 1922 | Box 21 \ 5 Scan034 | |
| The unsatisfactory running of a D.F.P. chassis and arranging for its delivery and inspection in London. | 21th Mar 1922 | Box 21 \ 5 Scan035 | |
| Telegram received by telephone from Elliott in Chichester regarding a despatch. | 24th Mar 1922 | Box 21 \ 5 Scan036 | |
| Extract discussing the difficulty of altering a D.F.P. car's steering column and the proposal for its vehicle license. | 16th Mar 1922 | Box 21 \ 5 Scan037 | |
| Correspondence concerning the status of licences and parts for D.F.P., Essex, and Delage cars. | 16th Mar 1922 | Box 21 \ 5 Scan038 | |
| Blueprint detailing a modification to the steering column position for a 10-HP D.F.P. model. | 13th Mar 1922 | Box 21 \ 5 Scan039 | |
| Instruction to Messrs. Holmes Bros. to carry out work as per an attached estimate, with a suggested extra. | 16th Mar 1922 | Box 21 \ 5 Scan040 | |
| Internal correspondence regarding the difficulty in altering a D.F.P. car's steering column due to a mechanics' lockdown. | 14th Mar 1922 | Box 21 \ 5 Scan041 | |
| Instruction sheet regarding a print showing modified column positions. | 13th Mar 1918 | Box 21 \ 5 Scan042 | |
| The sourcing of an alternative headlamp bulb. | 13th Mar 1922 | Box 21 \ 5 Scan043 | |
| Request to source replacement 6 volt, 18 c.p. headlamp bulbs for a Ducelier car from Messrs. Godins. | 14th Mar 1922 | Box 21 \ 5 Scan044 | |
| Position of the front seats and steering wheel for a 10 H.P+ D.F.P. car. | 10th Mar 1922 | Box 21 \ 5 Scan045 | |
| Information on sourcing headlamp bulbs for a Ducellier Car. | 6th Mar 1922 | Box 21 \ 5 Scan046 | |
| Internal order memo authorising work and the supply of parts for a D.F.P. car. | 1st Mar 1922 | Box 21 \ 5 Scan047 | |
| Order for a Dunlop Magnum cord cover and tube for a D.F.P. Car. | 6th Mar 1922 | Box 21 \ 5 Scan048 | |
| The registration and a 6-month license for a 4-cylinder D.F.P. car obtained for Mr. Royce. | 1st Mar 1922 | Box 21 \ 5 Scan049 | |
| Instruction to Messrs. Holmes Bros. to supply four small flat wings for a D.F.P. Car. | 1st Mar 1922 | Box 21 \ 5 Scan050 | |
| Delivery note for four small plain wings and one pair of domed rear wings on approval to the Experimental Department. | 28th Feb 1922 | Box 21 \ 5 Scan051 | |
| Instruction sheet detailing the weight measurement of a D.F. 13 chassis when full of petrol, oil, and water. | 22th Feb 1922 | Box 21 \ 5 Scan052 | |
| Delivery note for one A.F.P chassis. | 21th Feb 1922 | Box 21 \ 5 Scan053 | |
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