| Description | Date | Identifier | |
| Re-order request for three Delco distributors for a Bentley 60 ignition system. | 14th May 1940 | Box 168 \ 3 img269 | |
| Order for spare Delco-Remy Distributor parts. | 15th May 1940 | Box 168 \ 3 img270 | |
| Internal order to supplement the stock of spare Delco-Remy Distributor parts. | 15th May 1940 | Box 168 \ 3 img271 | |
| Letter from Delco-Remy & Hyatt Ltd. concerning the supply and technical specifications of Vacu-matic distributors. | 15th May 1940 | Box 168 \ 3 img272 | |
| Letter regarding the provision of levers for octane adjustment on a distributor. | 10th May 1940 | Box 168 \ 3 img273 | |
| Letter to Delco, Remy & Hyatt regarding the supply and modification of distributor units for experimental engines. | 10th May 1940 | Box 168 \ 3 img274 | |
| Letter to Delco-Remy & Hyatt Ltd. confirming specifications for four-cylinder units and distributors. | 21th May 1940 | Box 168 \ 3 img275 | |
| Request to obtain distributors and vacuum control units from Delco-Remy & Hyatt Ltd. | 21th May 1940 | Box 168 \ 3 img276 | |
| Request to obtain 4-cylinder distributors and vacuum control units from Delco-Remy & Hyatt Ltd. | 21th May 1940 | Box 168 \ 3 img277 | |
| Letter to Delco-Remy & Hyatt Ltd concerning the supply of cylinder units and distributors. | 21th May 1940 | Box 168 \ 3 img278 | |
| Letter from Delco-Remy & Hyatt Ltd. regarding an order for distributors and vacuum control units. | 27th May 1940 | Box 168 \ 3 img279 | |
| Letter from Delco-Remy & Hyatt Ltd. requesting further details to complete an order for Vacuumatic Distributors. | 12th Jun 1940 | Box 168 \ 3 img280 | |
| Letter to Delco-Remy & Hyatt Co. regarding the advance characteristics and rotation for three distributors. | 17th Jun 1940 | Box 168 \ 3 img281 | |
| Letter to Delco-Remy & Hyatt Ltd. regarding three distributors, their settings, and direction of rotation. | 29th Jun 1940 | Box 168 \ 3 img282 | |
| Instructions and parts list for fitting a 'DELCO' vacuum control distributor to a B.60 Number 6 engine. | 27th Aug 1940 | Box 168 \ 3 img283 | |
| Production issue with faulty Delco-Remy distributor cams on the Wraith. | 17th Sep 1940 | Box 168 \ 3 img284 | |
| Oil fittings for a Delco Remy Distributor and Wraith Spring Drive. | 30th Sep 1940 | Box 168 \ 3 img285 | |
| Lucas distributor model DK.4A-0 and required modifications for the M.40 Engine. | 18th Oct 1940 | Box 168 \ 3 img286 | |
| Proposed modifications for a B.W. 40, Delco-Remy 4 cylinder distributor. | 8th Nov 1940 | Box 168 \ 3 img287 | |
| Modifications to a Delco-Remy 4-cylinder distributor (B.M. 40). | 8th Nov 1940 | Box 168 \ 3 img288 | |
| Letter to Delco Remy & Hyatt regarding modifications for 4-cylinder vacumatic type distributors. | 19th Nov 1940 | Box 168 \ 3 img289 | |
| Letter from Delco-Remy & Hyatt Ltd. discussing the results of a four-cylinder distributor bench test and proposed modifications. | 2nd Dec 1940 | Box 168 \ 3 img290 | |
| Modifications to the Delco-Remy distributor drawing, specifically the position of the locating groove. | 10th Dec 1940 | Box 168 \ 3 img291 | |
| Requesting a covering order for the modification of three distributors sent to Delco Remy & Hyatt Ltd. | 12th Dec 1940 | Box 168 \ 3 img292 | |
| Letter discussing the modification of distributors, a locating groove issue, and the advantages of an oil-filled coil design. | 12th Dec 1940 | Box 168 \ 3 img293 | |
| Drawing prepared for modifications to a distributor with suction micrometer advance. | 14th Dec 1940 | Box 168 \ 3 img294 | |
| Letter from Delco-Remy & Hyatt Ltd. discussing alterations to a Distributor Base and an article on Chevrolet Ignition. | 17th Dec 1940 | Box 168 \ 3 img295 | |
| Letter to Lucas Ltd. requesting modifications for a DK4-C type distributor. | 1st Jan 1941 | Box 168 \ 3 img296 | |
| Letter to Messrs. Dixon & Wyatt Ltd. requesting a unit for an engine, referencing previous correspondence. | 1st Jan 1941 | Box 168 \ 3 img297 | |
| Letter from Delco-Remy & Hyatt Ltd. confirming the despatch of one Distributor. | 4th Jan 1941 | Box 168 \ 3 img298 | |
| Letter to Messrs. BRICO R.W.P. Ltd. acknowledging their letter and the forthcoming dispatch of a distributor. | 9th Jan 1941 | Box 168 \ 3 img299 | |
| Letter from Joseph Lucas Ltd concerning the supply of a modified Timing Lever and Bracket. | 15th Jan 1941 | Box 168 \ 3 img300 | |
| Myth BM.40 Distributor, approving the use of a Lucas plate which requires housing modification. | 20th Jan 1941 | Box 168 \ 3 img301 | |
| Letter to Joseph Lucas Ltd. concerning a bracket, housing, and starter drive. | 21th Jan 1941 | Box 168 \ 3 img302 | |
| Letter to Joseph Lucas Ltd. regarding a 4-cylinder distributor bracket and starter drives. | 21th Jan 1941 | Box 168 \ 3 img303 | |
| Letter to a supplier requesting advice on the mounting of three four-cylinder distributors. | 28th Jan 1941 | Box 168 \ 3 img304 | |
| Letter from Joseph Lucas Ltd regarding a 4-cylinder distributor, bracket, and starter drive. | 29th Jan 1941 | Box 168 \ 3 img305 | |
| Letter from Delco-Remy & Hyatt Ltd. regarding the suitable mounting position for a four-cylinder distributor. | 10th Feb 1941 | Box 168 \ 3 img306 | |
| Letter to Delco-Remy & Hyatt Ltd. discussing the permissible mounting angle of a distributor. | 13th Feb 1941 | Box 168 \ 3 img307 | |
| Requesting the production of one dozen distributor drives, part number DB.2399. | 1st Apr 1941 | Box 168 \ 3 img308 | |
| Drawing issue with a Delco-Remy distributor, specifically the position of a locating groove. | 10th Dec 1940 | Box 168 \ 3 img309 | |
| Drawing for a Distributor with Suction-Micrometer Advance for modifications required by Lucas. | 14th Dec 1940 | Box 168 \ 3 img310 | |
| Distributor plate suggested by Lucas and the required housing modification. | 20th Jan 1941 | Box 168 \ 3 img311 | |
| Misfires in Car 1-R-1 caused by a worn distributor contact-breaker. | 16th Jun 1941 | Box 168 \ 3 img312 | |
| Letter to Delco-Remy & Hyatt Ltd. requesting three sets of eight-cylinder distributors and technical advice on return spring pressure. | 4th Sep 1941 | Box 168 \ 3 img313 | |
| Letter to Delco-Remy & Hyatt Ltd. regarding eight-cylinder distributors, requesting new sets and advice on return spring pressure. | 4th Sep 1941 | Box 168 \ 3 img314 | |
| Correspondence from Delco-Remy & Hyatt Ltd. regarding the availability and design of vacuum units and distributors. | 17th Sep 1941 | Box 168 \ 3 img315 | |
| Letter to Delco Remy & Hyatt Ltd. regarding the procurement of vacuum controls with octane adjusters. | 29th Sep 1941 | Box 168 \ 3 img316 | |
| Querying an invoice from Joseph Lucas Ltd. for three distributors and the terms of supply. | 9th Feb 1942 | Box 168 \ 3 img317 | |
| Confirming the retention of and payment for unspecified units. | 14th Apr 1942 | Box 168 \ 3 img318 | |
| Notes on the design of helical compression springs. | 26th May 1943 | Box 168 \ 3 img319 | |
| Page 2 of a report on spring mechanics, discussing the effects of curvature, stress, and deflection with formulas. | 26th May 1943 | Box 168 \ 3 img320 | |
| Letter from Scintilla Limited regarding wireless shielding coils and the earthing spring for H.T. cables. | 10th Dec 1931 | Box 168 \ 4 img001 | |
| Letter from Scintilla Limited detailing the investigation and satisfactory resolution of a fault with shielded magneto terminals. | 26th Jan 1932 | Box 168 \ 4 img002 | |
| Letter to Scintilla Ltd. regarding the redirection of magneto terminals to a depot in Paris. | 27th Jan 1932 | Box 168 \ 4 img003 | |
| Request to order three pairs of Type 'H' battery clamp connectors from Peto & Radford Co. Ltd. | 19th Jun 1934 | Box 168 \ 4 img004 | |
| Standardisation of a knurled nickel-plated brass terminal nut and spring washer to replace the spring clip on all sparking plugs. | 15th May 1934 | Box 168 \ 4 img005 | |
| Procurement of screws to manufacture ignition terminals for 'Spectre'. | 5th Nov 1934 | Box 168 \ 4 img006 | |
| Dynamo short-circuiting and a speedometer needing recalibration on the 'Spectre'. | 13th Dec 1934 | Box 168 \ 4 img007 | |
| Requesting reimbursement for the purchase of two dozen small terminals for the laboratory. | 16th Mar 1935 | Box 168 \ 4 img008 | |
| Request to fit waterproof rubber caps on the H.T. terminals of an ignition distributor. | 28th Mar 1935 | Box 168 \ 4 img009 | |
| Order request for two wiring terminal plugs from Messrs. Smiths for the 40/50 chassis. | 15th May 1935 | Box 168 \ 4 img010 | |
| Designs for Spectre sparking plugs, terminals, and cylinder head modifications. | 27th Aug 1935 | Box 168 \ 4 img011 | |
| Outlining two testing schemes for ignition plug terminals and covers on a model in France. | 23th Sep 1935 | Box 168 \ 4 img012 | |
| The satisfactory performance of new short-skirted sparking plug terminals and the urgent need for them for the Phantom III chassis. | 5th Dec 1935 | Box 168 \ 4 img013 | |
| Instruction to manufacture insulated sparking plug terminals to prevent fires on Phantom III engines. | 27th Jan 1936 | Box 168 \ 4 img014 | |
| Internal order request for one gross of Collett cable terminals for battery ignition distributors. | 20th May 1936 | Box 168 \ 4 img015 | |
| Letter from accumulator manufacturer Peto & Radford acknowledging a query about earthing a positive battery terminal. | 27th Oct 1936 | Box 168 \ 4 img016 | |
| Letter to K.L.G. Sparking Plugs detailing the results of vibration tests on standard and experimental terminals. | 2nd Mar 1937 | Box 168 \ 4 img017 | |
| Instruction to arrange for 6 terminal heads to be made to drawing D.74450 and sent to Messrs. Lucas. | 3rd May 1937 | Box 168 \ 4 img018 | |
| Complaints about tight Phantom III Sparking Plug Terminals and fitting instructions. | 7th May 1937 | Box 168 \ 4 img019 | |
| Insulated plug terminals sent to address a complaint. | 10th Jun 1937 | Box 168 \ 4 img020 | |
| Refuting a previous dismissal of an issue with insulated plug terminals pulling off wires on the Phantom III. | 17th Jul 1937 | Box 168 \ 4 img021 | |
| The incorrect handing of a negative battery terminal on chassis 7.B.V. | 3rd Mar 1938 | Box 168 \ 4 img022 | |
| Request to obtain half a dozen plug terminals from E.R. Sparking Plugs Ltd. for the 1938 Hillman Minx. | 19th Mar 1938 | Box 168 \ 4 img023 | |
| Internal request to order one gross of Collett 'Ezetite' terminals for experimental use with high tension cables. | 6th Jul 1938 | Box 168 \ 4 img024 | |
| Request to obtain three dozen sparking plug terminals from the Champion Sparking Plug Co. Ltd. | 3rd Jan 1939 | Box 168 \ 4 img025 | |
| Note regarding a proposed change from a Weston ammeter to an Elliott ammeter, pending a 10,000-mile test report. | 4th Apr 1924 | Box 168 \ 5 img001 | |
| Comparison test report between an Elliott Chassis Ammeter and a standard Weston ammeter. | 10th Mar 1924 | Box 168 \ 5 img002 | |
| Requesting a 10,000-mile test for a sample ammeter from an alternative English supplier, Elliott Brothers. | 25th Apr 1924 | Box 168 \ 5 img003 | |
| Replacement of a special glass for an Elliott Ammeter to be fitted to an experimental car. | 28th Apr 1924 | Box 168 \ 5 img004 | |
| New glass fitted to an Elliott Ammeter, which is being sent for exhaustive road testing and comparison. | 10th May 1924 | Box 168 \ 5 img005 | |
| Testing an Elliott ammeter as a potential alternative to the Weston instrument for chassis 98-NK. | 12th May 1924 | Box 168 \ 5 img006 | |
| Letter from Thompson & Co. offering SIPAM Motor Car Type Ammeters. | 21th Jul 1924 | Box 168 \ 5 img007 | |
| French product sheet for automotive ammeters and voltmeters. | 21th Jul 1924 | Box 168 \ 5 img008 | |
| Price list for Type E-66 moving iron instruments (ammeters and voltmeters). | 21th Jul 1924 | Box 168 \ 5 img009 | |
| French language specification sheet showing three types of dashboard gauges and various dial faces. | 21th Jul 1924 | Box 168 \ 5 img010 | |
| French language specification sheet with diagrams for four types of mounting fixtures. | 21th Jul 1924 | Box 168 \ 5 img011 | |
| French language data sheet and price list for Type E-70 precision moving-coil instruments. | 4th Jul 1923 | Box 168 \ 5 img012 | |
| Technical drawings with dimensions for a flush-mounted model (Type A) and a surface-mounted model (Type B). | 4th Jul 1923 | Box 168 \ 5 img013 | |
| Letter from Elliott Brothers (London) Ltd enquiring about the road test results for a sample Ammeter. | 6th Oct 1924 | Box 168 \ 5 img014 | |
| The performance and condition of an Elliott Ammeter on chassis 98-NK, recommending re-testing. | 24th Oct 1924 | Box 168 \ 5 img015 | |
| Request to re-test the accuracy of an Elliott ammeter on chassis 98-NK. | 29th Dec 1924 | Box 168 \ 5 img016 | |
| Request to return two damaged Weston ammeters for repair and to have them fitted with an updated insulating device. | 1st Jan 1925 | Box 168 \ 5 img017 | |
| Recurring faults with an Elliott Ammeter after a 10,000-mile test, including a cracked glass and a jammed needle. | 24th Jan 1925 | Box 168 \ 5 img018 | |
| Inspection report on Elliott Ammeter No.134643 after a 10,000-mile test. | 23th Jan 1925 | Box 168 \ 5 img019 | |
| Passing a report on a faulty Elliott Ammeter to the manufacturer for a replacement. | 27th Jan 1925 | Box 168 \ 5 img020 | |
| Requesting the return of a Weston ammeter to the makers for repair. | 23th Feb 1925 | Box 168 \ 5 img021 | |
| Concerning the search for an ammeter to rival the Weston, and correspondence with supplier Elliott Brothers. | 3rd Mar 1925 | Box 168 \ 5 img022 | |
| Letter from Elliott Brothers (London) Ltd responding to complaints about an Elliott Ammeter. | 24th Feb 1925 | Box 168 \ 5 img023 | |
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