| Description | Date | Identifier | |
| Letter from Benton & Stone Ltd. regarding issues with an 'Enots' Lubricator part, a screwed fitting, and filter housings. | 12th Jun 1929 | Box 51 \ 3 Scan150 | |
| Approving the revised Enots fitting (F.77765) from Messrs. Benton & Stone for use on the Mechanic's Joints of 20 HP and S.S. chassis. | 13th Jun 1929 | Box 51 \ 3 Scan151 | |
| Letter from Benton & Stone Ltd. enclosing two modified steel adaptors for examination and testing. | 14th Jun 1929 | Box 51 \ 3 Scan152 | |
| Letter from Benton & Stone regarding a delay in an order for non-return valves due to drawing modifications. | 14th Jun 1929 | Box 51 \ 3 Scan153 | |
| Agreement on the manufacture of Enots fittings, splitting production between the Works (steel housings) and supplier Benton & Stone (brass mechanisms). | 4th Jun 1929 | Box 51 \ 3 Scan154 | |
| Modifications to an Enots non-return fitting for the 20 HP front and rear axle. | 7th Jun 1929 | Box 51 \ 3 Scan155 | |
| Letter from Benton & Stone Ltd. regarding a fouling issue with a flexible grease gun nipple assembly. | 19th Jun 1929 | Box 51 \ 3 Scan156 | |
| Letter to Benton & Stone Ltd. requesting a modification to the hexagon on the flexible tubing for a grease gun. | 20th Jun 1929 | Box 51 \ 3 Scan157 | |
| Requesting the dispatch of spare felt filters for the central lubrication system of a 20 HP chassis. | 27th Jun 1929 | Box 51 \ 3 Scan158 | |
| Confirming lubrication intervals for various vehicle components. | 1st Jul 1929 | Box 51 \ 3 Scan159 | |
| Points of attention for the central lubrication system of the 20-EX car. | 1st Jul 1929 | Box 51 \ 3 Scan160 | |
| Feedback on a trial of a sample small oil gun from Enots, detailing pressure issues and recommending design modifications. | 1st Nov 1929 | Box 51 \ 3 Scan161 | |
| Updated procedure for the lubrication of axles using the Bijur system oil-gun. | 1st Jan 1930 | Box 51 \ 3 Scan162 | |
| Page 2 of a memo discussing the interim circulation of Depot Sheets before Instruction Books are updated. | 30th Dec 1931 | Box 51 \ 3 Scan163 | |
| Samples of Benton & Stone Fittings to be sent from the Stores. | 30th Dec 1931 | Box 51 \ 3 Scan164 | |
| Requesting confirmation to pay an invoice for Benton & Stone parts. | 6th Jan 1932 | Box 51 \ 3 Scan165 | |
| Requesting payment arrangements for a retained Autolub Gun and its fittings. | 7th Jan 1932 | Box 51 \ 3 Scan166 | |
| Standardisation document for the replacement of the Enots autolub Grease Gun No. 54. | 3rd Jan 1932 | Box 51 \ 3 Scan167 | |
| Form concerning the fitting of a new part to a chassis and the associated costs. | 16th Feb 1932 | Box 51 \ 3 Scan168 | |
| Quotation and tooling cost for a new petrol filter for the 20/25-HP 'U' series chassis. | 16th Feb 1932 | Box 51 \ 3 Scan169 | |
| The standardization of a Benton & Stone petrol filter for the 20/25 HP 'U' Series chassis. | 17th Feb 1932 | Box 51 \ 3 Scan170 | |
| Sample 'Easijetc' all brass, chromium plated oil can from Messrs. Benton & Stone Ltd. | 11th Jan 1933 | Box 51 \ 3 Scan171 | |
| Inquiry to T.B. Andre & Co. Ltd. for particulars of the Hartford Shock Absorber. | 28th Oct 1921 | Box 51 \ 4 Scan001 | |
| Viability and cost of fitting Hartford shock absorbers to overcome issues with leaf springs. | 31th Oct 1921 | Box 51 \ 4 Scan002 | |
| Quote for Hartford shock absorbers as an alternative for the Goshawk. | 31th Oct 1921 | Box 51 \ 4 Scan003 | |
| Minutes of a conference discussing the testing and fitting of Hartford Shock Absorbers on the 40/50 chassis. | 7th Dec 1921 | Box 51 \ 4 Scan004 | |
| Performance, benefits, and recommendation of Hartford Shock Absorbers. | 7th Dec 1921 | Box 51 \ 4 Scan005 | |
| The advantages and disadvantages of fitting 'Hartford' shock absorbers. | 17th Dec 1921 | Box 51 \ 4 Scan006 | |
| Blueprint showing the general dimensions of Hartford Shock Absorbers. | 9th Dec 1921 | Box 51 \ 4 Scan007 | |
| Internal memorandum discussing the suitability and fitting of shock absorbers for the 40/50 chassis. | 9th Dec 1921 | Box 51 \ 4 Scan008 | |
| Policy on fitting thin lead springs versus shock dampers. | 15th Dec 1921 | Box 51 \ 4 Scan009 | |
| Internal order request for three sets of Hartford Shock Absorbers without fittings. | 16th Dec 1921 | Box 51 \ 4 Scan010 | |
| Suggestion to change the Goshawk 11 rear shock absorbers to a 'Hartford' scissor-type construction to prevent fouling the rear spring. | 16th Dec 1921 | Box 51 \ 4 Scan011 | |
| Fitting of Hartford shock-absorbers to the 40/50 HP chassis to address customer complaints about springing. | 17th Dec 1921 | Box 51 \ 4 Scan012 | |
| Instructing the return of two Hartford shock absorbers to the stores for forwarding to the supplier. | 19th Dec 1921 | Box 51 \ 4 Scan013 | |
| Use of Hartford Shock Absorbers on the 40/50 chassis to resolve customer complaints about ride quality. | 19th Dec 1921 | Box 51 \ 4 Scan014 | |
| Standardisation sheets and arrangements for testing Goshawk 11 and Hartford shock absorbers. | 20th Dec 1921 | Box 51 \ 4 Scan015 | |
| Customer complaints about springing and the use of Hartford shock absorbers as a solution on post-war cars. | 3rd Jan 1921 | Box 51 \ 4 Scan016 | |
| The 'Hartford' friction damper as a cure for car jagging when braking, including test data. | 3rd Jan 1922 | Box 51 \ 4 Scan017 | |
| Testing and benefits of fitting Hartford shock absorbers to various car models. | 3rd Jan 1922 | Box 51 \ 4 Scan018 | |
| The preparations and modifications for two Riviera cars ahead of their shipment to France. | 4th Jan 1922 | Box 51 \ 4 Scan019 | |
| Request for a pair of Hartford shock absorbers for an open demonstration car due to the present ones being noisy. | 13th Jan 1922 | Box 51 \ 4 Scan020 | |
| Re-arrangement of Hartford Shock Absorber brackets for Chassis 81-TW. | 14th Jan 1922 | Box 51 \ 4 Scan021 | |
| Request for a replacement set of Hartford shock absorbers for chassis 107-MG, as the current ones are unsatisfactory. | 23th Jan 1922 | Box 51 \ 4 Scan022 | |
| Requesting a set of Hartford shock absorbers to be sent to the Nice Depot for chassis 107-MG. | 24th Jan 1922 | Box 51 \ 4 Scan023 | |
| Delay in sending brackets for Hartford Shock Absorbers for chassis 107-MG. | 25th Jan 1922 | Box 51 \ 4 Scan024 | |
| Acknowledgement of an order for brackets and Hartford shock absorbers for chassis 107-MG, to be sent to the Nice Depot. | 31th Jan 1922 | Box 51 \ 4 Scan025 | |
| Requesting feedback on shock absorbers, carburetter, and axle performance, with an update on car production and movements. | 2nd Feb 1922 | Box 51 \ 4 Scan026 | |
| Instructing the stores to despatch Hartford Shock Absorbers to the depot in Nice, France. | 2nd Feb 1922 | Box 51 \ 4 Scan027 | |
| Works order for the despatch of Hartford shock absorbers and brackets for Mr. Northey's Trials' Car. | 3rd Jan 1922 | Box 51 \ 4 Scan028 | |
| Report from the Nice Dépôt regarding shock absorber failures and performance, urgently requesting Hartford parts. | 7th Feb 1922 | Box 51 \ 4 Scan029 | |
| Issues with rear springs and the recommendation to fit Hartford pattern shock dampers. | 10th Feb 1922 | Box 51 \ 4 Scan030 | |
| Notes on the theory of shock absorbers as applied to the suspension of motor cars. | 10th Feb 1922 | Box 51 \ 4 Scan031 | |
| The function and benefits of Hartford Shock Absorbers for motor car suspension systems. | 10th Feb 1922 | Box 51 \ 4 Scan032 | |
| Explaining the theory and fundamental principles of Hartford Shock Absorbers. | 10th Feb 1922 | Box 51 \ 4 Scan033 | |
| Technical discussion on the effects of road conditions on spring oscillation and methods of damping, including the use of friction. | 10th Feb 1922 | Box 51 \ 4 Scan034 | |
| Explanation of the principles of spring oscillation and the benefits of two-way shock absorbers, specifically the Hartford type. | 10th Feb 1922 | Box 51 \ 4 Scan035 | |
| Blueprint with diagrams explaining the theory of Hartford shock absorbers. | 26th Feb 1922 | Box 51 \ 4 Scan036 | |
| Extracts from a letter by Mr. Royce discussing his stay in France and various car development topics. | 26th Feb 1922 | Box 51 \ 4 Scan037 | |
| The policy for standardising parts that have proven satisfactory, using Hartford Shock Absorbers as a case example. | 1st Mar 1922 | Box 51 \ 4 Scan038 | |
| Changeover of the cross steering tube and the standardisation sheet for the Hartford shock absorber. | 15th Mar 1922 | Box 51 \ 4 Scan039 | |
| Cover note for correspondence regarding a cross steering tube changeover and a standardisation sheet for a Hartford shock absorber. | 17th Mar 1922 | Box 51 \ 4 Scan040 | |
| Cover memo requesting remarks on an attached document from the Paris Depot regarding front shock absorbers and rattles on cars. | 10th May 1922 | Box 51 \ 4 Scan041 | |
| Mysterious rattles on the front of new cars, traced to poorly fitting front shock absorbers. | 3rd May 1922 | Box 51 \ 4 Scan042 | |
| Letter to T.B. Andre & Co. Ltd. regarding a noise issue with Hartford Shock Absorbers due to worn bushes. | 19th Jun 1922 | Box 51 \ 4 Scan043 | |
| Inspecting cars fitted with Hartford shock absorbers due to issues with premature wear and noise. | 20th Jun 1922 | Box 51 \ 4 Scan044 | |
| Letter from T.B. Andre & Co. Ltd. responding to a complaint about wear on Hartford Shock Absorbers. | 20th Jun 1922 | Box 51 \ 4 Scan045 | |
| Wear on Hartford Shock Absorbers due to incorrect fitting and lubrication. | 22th Jun 1922 | Box 51 \ 4 Scan046 | |
| The contact person to handle noise complaints that may occur in London. | 22th Jun 1922 | Box 51 \ 4 Scan047 | |
| The performance and a weakness found in Hartford Shock Absorbers after fitting them to cars. | 22th Jun 1922 | Box 51 \ 4 Scan048 | |
| The guarantee for shock absorbers and replacement of faulty parts. | 23th Jun 1922 | Box 51 \ 4 Scan049 | |
| Faulty Hartford Shock Absorbers and clarifying fitting procedures with spring washers. | 23th Jun 1922 | Box 51 \ 4 Scan050 | |
| Noisy Hartford shock-absorbers and proposing an instruction leaflet. | 23th Jun 1922 | Box 51 \ 4 Scan051 | |
| Letter from T. B. Andre & Co. Ltd regarding wear on wood bushes in Hartford Shock Absorbers. | 26th Jun 1922 | Box 51 \ 4 Scan052 | |
| Letter from T. B. Andre & Co. Ltd. regarding a parts guarantee and a trial of type 104 Hartford Shock Absorbers. | 28th Jun 1922 | Box 51 \ 4 Scan053 | |
| Covering letter attaching correspondence from T.B. Andre & Co.Ltd regarding Hartford Shock Absorbers. | 28th Jun 1922 | Box 51 \ 4 Scan054 | |
| Letter from T.B. Andre & Co Ltd. concerning wear issues and proposed solutions for Hartford Shock Absorbers. | 26th Jun 1922 | Box 51 \ 4 Scan055 | |
| Letter from T. B. Andre & Co. Ltd. offering the new type 104 model. | 29th Jun 1922 | Box 51 \ 4 Scan056 | |
| Wear issues and the fitting of Hartford shock absorbers. | 29th Jun 1922 | Box 51 \ 4 Scan057 | |
| Note on Hartford Shock Absorbers, comparing the double type intended for racing cars with the single type. | 1st Jul 1922 | Box 51 \ 4 Scan058 | |
| Extract from a letter by Mr. Minchin regarding the essential nature of Hartford shock absorbers. | 5th Jul 1922 | Box 51 \ 4 Scan059 | |
| Letter from T.B. Andre & Co. concerning experimental oilless bushes and washers for Hartford Shock Absorbers. | 25th Jul 1922 | Box 51 \ 4 Scan060 | |
| The policy on fitting thick versus thin leaf rear springs. | 10th Aug 1922 | Box 51 \ 4 Scan061 | |
| Faulty shock absorber with a prematurely worn wooden bush being sent for examination. | 15th Aug 1922 | Box 51 \ 4 Scan062 | |
| Springfield's experience with springing, leaf springs, and various shock absorbers like Hartford and Watson's Stabilizer. | 8th Aug 1922 | Box 51 \ 4 Scan063 | |
| Comparison of thick and thin leaf springs, referencing pre-war designs and drive characteristics. | 16th Aug 1922 | Box 51 \ 4 Scan064 | |
| Schematic for a shock absorber application on the left front outside of a frame. | 16th Aug 1922 | Box 51 \ 4 Scan065 | |
| Continued memo regarding shock dampers, spring flexibility, and damping friction. | 16th Aug 1922 | Box 51 \ 4 Scan066 | |
| Diagram illustrating the application and fitting of a left rear shock absorber inside the frame. | 3rd Apr 1925 | Box 51 \ 4 Scan067 | |
| Diagram analyzing the resistance of a shock absorber arm when force is applied at various angles. | 3rd Apr 1925 | Box 51 \ 4 Scan068 | |
| Requesting an update on when a shock absorber has been sent to stores. | 18th Aug 1922 | Box 51 \ 4 Scan069 | |
| The despatch of shock absorbers for repairs and testing. | 23th Aug 1922 | Box 51 \ 4 Scan070 | |
| Standardization of shock absorbers between the 40/50 and Goshawk models. | 1st Aug 1922 | Box 51 \ 4 Scan071 | |
| Letter concerning the excessive wear of a customer's Hartford Shock Absorber bushes after 3,000 miles. | 23th Aug 1922 | Box 51 \ 4 Scan072 | |
| Continuation of a letter regarding joint slack and the return of unsuitable front shock absorbers. | 1st Sep 1922 | Box 51 \ 4 Scan073 | |
| Standardisation sheet for Hartford Shock Absorbers. | 1st Sep 1922 | Box 51 \ 4 Scan074 | |
| Standardisation of chassis parts, specifically 'Hartford' shock absorbers. | 14th Feb 1922 | Box 51 \ 4 Scan075 | |
| Recommendation to supply wood bushes and washers as spares with every set of Hartford shock absorbers. | 1st Sep 1922 | Box 51 \ 4 Scan076 | |
| Tests conducted on Hartford shock absorbers to resolve issues with the 49-GB model. | 20th Oct 1922 | Box 51 \ 4 Scan077 | |
| Tests conducted on shock absorber discs made from various woods, including Beechwood, Teak-wood, and Hartford wood. | 24th Oct 1922 | Box 51 \ 4 Scan078 | |
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