| Description | Date | Identifier | |
| Letter from Brown, Boveri & Co. offering to sell two magnetos for destructive testing. | 9th Sep 1920 | Box 48 \ 2 Scan006 | |
| Returning two Scintilla magnetos to Messrs. Brown, Boveri & Co. Ltd. as their design was considered unsuitable. | 9th Sep 1920 | Box 48 \ 2 Scan007 | |
| Letter from Scintilla Limited offering starting and lighting equipment for motor cars. | 12th Mar 1921 | Box 48 \ 2 Scan008 | |
| Letter from Scintilla Limited regarding the Paris Motor Exhibition. | 5th Oct 1921 | Box 48 \ 2 Scan009 | |
| Explaining why Scintilla magnetos were not tested, citing their design as too novel for use. | 20th Sep 1922 | Box 48 \ 2 Scan010 | |
| Letter from Scintilla Limited regarding their products at the Paris Motor Exhibition. | 5th Oct 1922 | Box 48 \ 2 Scan011 | |
| Letter to Scintilla Limited requesting dimensions and specifications for small six-cylinder magnetos. | 22th Nov 1922 | Box 48 \ 2 Scan012 | |
| Letter from Scintilla Limited regarding the supply of magnetos and enclosing blueprints for various engine types. | 23th Nov 1922 | Box 48 \ 2 Scan013 | |
| Concluding page of a letter from Scintilla Limited regarding automatic advance for an engine, with enclosures noted. | 23th Nov 1922 | Box 48 \ 2 Scan014 | |
| Letter from Scintilla Limited acknowledging a previous letter regarding magnetos. | 27th Nov 1922 | Box 48 \ 2 Scan015 | |
| Letter to Scintilla Ltd. regarding adapting a small AP6 magneto with automatic and hand advance. | 24th Nov 1922 | Box 48 \ 2 Scan016 | |
| Letter discussing magneto requirements and engine specifications for two different engine sizes. | 5th Dec 1922 | Box 48 \ 2 Scan017 | |
| Letter to Scintilla Limited confirming arrangements for the supply of magnetos and generator units. | 5th Dec 1922 | Box 48 \ 2 Scan018 | |
| Suitability and testing of magnetos for the 20 HP car. | 1st Dec 1922 | Box 48 \ 2 Scan019 | |
| Use and testing of magnetos for 20 HP cars for export. | 11th Dec 1922 | Box 48 \ 2 Scan020 | |
| Letter from Scintilla Limited regarding the supply of an AG6 automatic magneto and a 110W dynamo. | 6th Dec 1922 | Box 48 \ 2 Scan021 | |
| Page 2 of a letter from Scintilla Limited, signed by the Contract Department. | 6th Dec 1922 | Box 48 \ 2 Scan022 | |
| Letter to Scintilla Ltd. chasing a reply regarding an AG.6. Magneto & 110 Watt Dynamo. | 29th Dec 1922 | Box 48 \ 2 Scan023 | |
| Letter from Scintilla Limited confirming the dispatch of a Type AG6 Magneto and a 110-watt Dynamo. | 30th Dec 1922 | Box 48 \ 2 Scan024 | |
| Letter from Scintilla Limited confirming the dispatch of a Magneto type AG6-A. | 9th Jan 1923 | Box 48 \ 2 Scan025 | |
| Test results for the Scintilla Magneto AG.6/A, detailing its automatic advance curve. | 19th Jan 1923 | Box 48 \ 2 Scan026 | |
| Letter from Scintilla Limited regarding a new, weaker spring for a type AG-A magneto being tested. | 22th Jan 1923 | Box 48 \ 2 Scan027 | |
| Graph showing the automatic cam advance curve versus speed for a Scintilla AG6-H magneto. | 23th Jan 1929 | Box 48 \ 2 Scan028 | |
| The reverse side of a document showing a Print Room receipt stamp from Derby. | 23th Jan 1929 | Box 48 \ 2 Scan029 | |
| Extract discussing a test of a Scintilla magneto with automatic advance on a 20 HP car, and its comparison to other ignition systems. | 23th Feb 1923 | Box 48 \ 2 Scan030 | |
| Letter to Scintilla Limited confirming arrangements and detailing issues with a 110-watt dynamo and regulator unit. | 15th Mar 1923 | Box 48 \ 2 Scan031 | |
| Critiques of a cutout and regulator system, with arrangements for a replacement control unit and magneto. | 15th Mar 1923 | Box 48 \ 2 Scan032 | |
| Concluding page of a letter to The Scintilla Co. Ltd. regarding the bulkiness of the AG.6 machine for a 20 HP engine. | 21th Mar 1923 | Box 48 \ 2 Scan033 | |
| Extract from a letter received from Scintilla Limited regarding the results of an AG6 magneto. | 21th Mar 1923 | Box 48 \ 2 Scan034 | |
| Letter from Scintilla Limited regarding a delay in the supply of type AM6-A magnetos. | 5th Apr 1923 | Box 48 \ 2 Scan035 | |
| Letter from Scintilla Limited confirming the dispatch of a type AM6-A magneto and apologising for a supply delay. | 16th May 1923 | Box 48 \ 2 Scan036 | |
| Instruction note regarding the dispatch of a magneto from Scintilla Ltd. | 17th May 1923 | Box 48 \ 2 Scan037 | |
| Letter from Scintilla Limited confirming the arrangement to send a new type 110 W. dynamo for testing. | 22th Oct 1923 | Box 48 \ 2 Scan038 | |
| Graph showing the automatic advance of the cam with speed for Sointilla magnetos, types AG8-A and AN8-A. | 30th Jan 1924 | Box 48 \ 2 Scan039 | |
| Performance data for a Scintilla Type AM6-A magneto with automatic advance. | 30th Jan 1924 | Box 48 \ 2 Scan040 | |
| Letter to Scintilla Ltd. requesting a control spring for an AM6-G Magneto to alter its automatic advance RPM. | 31th Jan 1924 | Box 48 \ 2 Scan041 | |
| Testing lower compression pistons to reduce engine detonation on the EAC car. | 1st Feb 1924 | Box 48 \ 2 Scan042 | |
| Magneto's automatic advance and a starting handle mechanism. | 1st Feb 1924 | Box 48 \ 2 Scan043 | |
| Letter from Scintilla Limited regarding the inability to alter the rotation of an AM6-A magneto. | 2nd Feb 1924 | Box 48 \ 2 Scan044 | |
| Confirmation of a telegram from Scintilla Limited regarding the direction of rotation for an AM6 g Magneto. | 2nd Feb 1924 | Box 48 \ 2 Scan045 | |
| Letter to Scintilla Ltd. concerning the specifications for an AM6-A magneto. | 4th Feb 1924 | Box 48 \ 2 Scan046 | |
| Letter from Scintilla Limited regarding particulars for a Magneto type AM6-A. | 5th Feb 1924 | Box 48 \ 2 Scan047 | |
| Letter to Scintilla Ltd. chasing a response regarding a type AM6-A Magneto. | 13th Feb 1924 | Box 48 \ 2 Scan048 | |
| Letter from Scintilla Limited regarding the Magneto type AM6-A. | 14th Feb 1924 | Box 48 \ 2 Scan049 | |
| Letter from Scintilla Limited confirming the supply of a Magneto type AM6-A. | 16th Feb 1924 | Box 48 \ 2 Scan050 | |
| Letter from Scintilla Limited providing specifications for a type AM6-A magneto. | 22th Feb 1924 | Box 48 \ 2 Scan051 | |
| Letter to Scintilla Ltd. detailing changes in magneto requirements, including rotation and advance curve. | 23th Feb 1924 | Box 48 \ 2 Scan052 | |
| Letter from Scintilla Limited correcting the maximum advance RPM for Magneto type AM6-A. | 25th Feb 1924 | Box 48 \ 2 Scan053 | |
| Letter from Scintilla Limited regarding a change in magneto specifications, specifically the maximum advance speed and the commencement speed of the automatic advance. | 27th Feb 1924 | Box 48 \ 2 Scan054 | |
| Letter from Scintilla Limited regarding the dispatch of a Scintilla Magneto type AM6-A. | 13th Mar 1924 | Box 48 \ 2 Scan055 | |
| Letter to Scintilla Limited regarding an issue with a supplied magneto and its rectification using parts from another. | 25th Mar 1924 | Box 48 \ 2 Scan056 | |
| Letter from Scintilla Limited regarding the exchange of an AM6-A Magneto, clarifying the difference in its direction of rotation. | 26th Mar 1924 | Box 48 \ 2 Scan057 | |
| Return of a clockwise Scintilla AM-6-A magneto after receiving an anti-clockwise version. | 31th Mar 1924 | Box 48 \ 2 Scan058 | |
| Specifications for the automatic advance of a Scintilla AM6-A Magneto with negative or anti-clockwise rotation. | 31th Mar 1924 | Box 48 \ 2 Scan059 | |
| Letter to Scintilla Limited acknowledging an error regarding the direction of rotation for an AM-6-A magneto. | 31th Mar 1924 | Box 48 \ 2 Scan060 | |
| Scintilla magneto with anticlockwise rotation and its specifications. | 31th Mar 1924 | Box 48 \ 2 Scan061 | |
| Specifications for the automatic advance of a Scintilla AM6-A magneto. | 31th Mar 1924 | Box 48 \ 2 Scan062 | |
| Experimental record sheet for a Scintilla Magneto AM6-A, number 26485. | 23th May 1923 | Box 48 \ 2 Scan063 | |
| Instructions to return a R.H. Scintilla Magneto to Messrs. Scintilla Ltd and request credit if already invoiced. | 1st Apr 1923 | Box 48 \ 2 Scan064 | |
| Notification regarding a Scintilla Magneto (No. 34937) with anticlockwise rotation fitted to chassis 93-NK. | 25th Apr 1924 | Box 48 \ 2 Scan065 | |
| Form recording the design and performance details of a Scintilla AM6-A magneto. | 13th Jul 1923 | Box 48 \ 2 Scan066 | |
| Specifications for an ignition distributor, including h.t. safety gap, platinum point gap, and contact breaker timing. | 13th Jul 1923 | Box 48 \ 2 Scan067 | |
| Results from endurance, volt-speed, and ampere-speed curve tests. | 13th Jul 1923 | Box 48 \ 2 Scan068 | |
| Table of specifications for an automatic ignition advance mechanism. | 13th Jul 1923 | Box 48 \ 2 Scan069 | |
| Test report page detailing results for short circuit, open circuit, and RPM tests. | 13th Jul 1923 | Box 48 \ 2 Scan070 | |
| High and low speed sparking characteristics and contact breaker performance. | 13th Jul 1923 | Box 48 \ 2 Scan071 | |
| Specification sheet detailing electrical resistance, current, point gaps, and contact breaker timing. | 8th Mar 1921 | Box 48 \ 2 Scan072 | |
| Specifications for platinum point gap, contact breaker timing, and armature core flux. | 8th Mar 1921 | Box 48 \ 2 Scan073 | |
| Form for recording the design and performance details of a Scintilla A.M.6A magneto. | 21th Mar 1924 | Box 48 \ 2 Scan074 | |
| Ignition timing advance specifications, including a table of automatic advance versus engine speed. | 21th Mar 1924 | Box 48 \ 2 Scan075 | |
| Specifications for distributor, contact breaker timing, and platinum point gap. | 21th Mar 1924 | Box 48 \ 2 Scan076 | |
| Test report page detailing an endurance test, a primary volt-speed curve, and a primary ampere-speed curve. | 21th Mar 1924 | Box 48 \ 2 Scan077 | |
| Continued page of a report detailing the results of electrical circuit tests. | 21th Mar 1924 | Box 48 \ 2 Scan078 | |
| High and low-speed sparking characteristics and contact breaker performance. | 21th Mar 1924 | Box 48 \ 2 Scan079 | |
| Specification sheet detailing electrical resistance, point gaps, and contact breaker timings for a component. | 8th Mar 1921 | Box 48 \ 2 Scan080 | |
| Specifications for platinum point gap, contact breaker timing, and armature core flux. | 8th Mar 1921 | Box 48 \ 2 Scan081 | |
| Graph comparing the open-circuit volt-speed and short-circuit ampere-speed curves for the primary windings of three different magnetos. | 13th May 1924 | Box 48 \ 2 Scan082 | |
| Suggesting the removal and laboratory testing of a Scintilla magneto, and proposing a Watford R.O.1 magneto as a replacement. | 9th May 1924 | Box 48 \ 2 Scan083 | |
| The bench testing of three Scintilla Magneto machines with automatic advance, types AG-6-A and AM-6-A. | 9th May 1924 | Box 48 \ 2 Scan084 | |
| The testing and performance of Scintilla magnetos on various car chassis. | 9th May 1924 | Box 48 \ 2 Scan085 | |
| Testing a magneto, its automatic advance characteristics, and application to a specific engine. | 9th May 1924 | Box 48 \ 2 Scan086 | |
| The experimental routine testing of a magneto, comparing its performance characteristics with other models. | 9th May 1924 | Box 48 \ 2 Scan087 | |
| Comparison of magneto distributor dimensions and H.T. safety gaps, including a sketch and data table. | 9th May 1924 | Box 48 \ 2 Scan088 | |
| Platinum point gaps and contact breaker timing for Scintilla and Watford magnetos. | 9th May 1924 | Box 48 \ 2 Scan089 | |
| Continuation of a test report on magnetos, detailing endurance, open-circuit, and short-circuit test results. | 9th May 1924 | Box 48 \ 2 Scan090 | |
| Report page detailing magneto safety gap, high tension discharge, and utility leakage tests. | 9th May 1924 | Box 48 \ 2 Scan091 | |
| Test report on the high and low-speed sparking characteristics of various magnetos. | 9th May 1924 | Box 48 \ 2 Scan092 | |
| Page detailing electrical resistance and current measurements for different magnetos. | 9th May 1924 | Box 48 \ 2 Scan093 | |
| Test results for Scintilla magnetos detailing automatic advance angles at various speeds. | 28th May 1923 | Box 48 \ 2 Scan094 | |
| Preliminary report on the Scintilla Magneto Type AM6-A. | 28th May 1923 | Box 48 \ 2 Scan095 | |
| Investigation into the sources of noise from a Scintilla AM-6-A magneto. | 6th Mar 1924 | Box 48 \ 2 Scan096 | |
| Graph showing the automatic advance of cam with speed for Scintilla Magnetos, types AG6A and AM6A. | 18th Jun 1935 | Box 48 \ 2 Scan097 | |
| Graph of open circuit volt-speed and short circuit ampere-speed curves for the primary windings of Scintilla and Watford magnetos. | 7th May 1924 | Box 48 \ 2 Scan098 | |
| The bench tests conducted on a Scintilla Magneto Type AG-6-A. | 15th May 1924 | Box 48 \ 2 Scan099 | |
| Test report for a Scintilla magneto AG.6A, detailing its slow and high-speed sparking characteristics. | 15th May 1924 | Box 48 \ 2 Scan100 | |
| Decision by Mr. Royce to use a governed Scintilla magneto and LeC. 1849 switchbox on the EAC.2. engine, with a request for dimensions. | 24th May 1924 | Box 48 \ 2 Scan101 | |
| Performance requirements for two Scintilla magnetos for the EAC.II engine. | 26th May 1924 | Box 48 \ 2 Scan102 | |
| Continued discussion on altering a magneto to achieve greater advance and drafting specifications for manufacturers. | 26th May 1924 | Box 48 \ 2 Scan103 | |
| Performance of a Scintilla magneto in relation to E.A.C.2 engine requirements. | 26th May 1924 | Box 48 \ 2 Scan104 | |
| Comparison of Scintilla and Watford magneto performance, particularly regarding slow-speed sparking characteristics. | 26th May 1924 | Box 48 \ 2 Scan105 | |
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