| Description | Date | Identifier | |
| Position on electric clocks and speedometers for the Left-Hand Phantom II Chassis. | 5th Sep 1930 | Box 64 \ 3 scan0311 | |
| Letter regarding the trial and specification of a Sparton S.O.S. horn and its aluminum mounting bracket for chassis 25-EX. | 11th Dec 1930 | Box 64 \ 3 scan0312 | |
| Cross-reference note for information relating to 40/50 Horns. | 31th Dec 1930 | Box 64 \ 3 scan0313 | |
| Describing a proposed scheme for a sequence starter motor, including a diagram and operational steps. | 22th Sep 1926 | Box 64 \ 4 scan0001 | |
| Query regarding the end pull characteristics of a starter motor armature, including a diagram. | 24th Sep 1926 | Box 64 \ 4 scan0002 | |
| New, simpler scheme for the Phantom Sequence Starter to prevent jamming. | 24th Sep 1926 | Box 64 \ 4 scan0003 | |
| Internal memorandum discussing the electrical examination of the Phantom Sequence Starter No.2 Scheme. | 1st Oct 1926 | Box 64 \ 4 scan0004 | |
| Operation of an armature-operated push switch to prevent engine hunting effects. | 1st Oct 1926 | Box 64 \ 4 scan0005 | |
| Confirming instructions have been forwarded to modify a patent according to Mr. Royce's latest ideas. | 8th Oct 1926 | Box 64 \ 4 scan0006 | |
| Sequence starter, confirming a reply has been resent. | 11th Oct 1926 | Box 64 \ 4 scan0007 | |
| Proposing a trial of a simplified sequence starter on the 20 HP model. | 1st Nov 1926 | Box 64 \ 4 scan0008 | |
| Redesigning a sequence starter for an EAC chassis, focusing on gear ratios and motor specifications. | 9th Nov 1926 | Box 64 \ 4 scan0009 | |
| Drawing for a Phantom direct drive starter motor, its positioning, and required modifications. | 6th Dec 1926 | Box 64 \ 4 scan0010 | |
| Concerning the new Phantom Sequence Starter scheme for a car destined for Le Canadel. | 27th Jan 1927 | Box 64 \ 4 scan0011 | |
| Design progress of a new automatic switch unit for the starter motor. | 27th Jan 1927 | Box 64 \ 4 scan0012 | |
| Required specifications for stranded copper flexible cables in an automatic switch unit. | 15th Feb 1927 | Box 64 \ 4 scan0013 | |
| Required cross-sectional area for an automatic switch unit. | 16th Feb 1927 | Box 64 \ 4 scan0014 | |
| Design and material options for a Phantom Direct Drive Flywheel Starter's automatic switch unit. | 3rd Mar 1927 | Box 64 \ 4 scan0015 | |
| Sufficiency of the hold-on electromagnet for the Sequence Starter No.2 Scheme. | 8th Mar 1927 | Box 64 \ 4 scan0016 | |
| Design memorandum discussing improvements for the Phantom Direct Flywheel Geared Starter Auto Switch Unit. | 10th Mar 1927 | Box 64 \ 4 scan0017 | |
| Design memorandum with annotated sketches for a magnet-based electrical component. | 2nd May 1927 | Box 64 \ 4 scan0018 | |
| New 'RR sequence' starter motor system for the Phantom Starter. | 2nd May 1927 | Box 64 \ 4 scan0019 | |
| Continued note on the design and benefits of a nearly silent flywheel geared type system. | 2nd May 1927 | Box 64 \ 4 scan0020 | |
| State and development of a sequence starter unit for EAC. 7. | 3rd May 1927 | Box 64 \ 4 scan0021 | |
| Modifications and design considerations for a sequence starter. | 7th Sep 1927 | Box 64 \ 4 scan0022 | |
| Report comparing two sequence starter schemes, No.1 and No.2A, with a focus on preventing jamming during engagement. | 26th Nov 1927 | Box 64 \ 4 scan0023 | |
| The design and testing of gear teeth for a starting apparatus, focusing on noise reduction and engagement. | 26th Nov 1927 | Box 64 \ 4 scan0024 | |
| Experiment on gear noise reduction using different types of teeth. | 12th Dec 1927 | Box 64 \ 4 scan0025 | |
| Requesting a set of straight-toothed, sharp-cornered starter motor gears, summarizing previously issued gear types. | 12th Dec 1927 | Box 64 \ 4 scan0026 | |
| Requesting a stop-work on specific gear rings and pinions, with a proposed alteration. | 8th Dec 1927 | Box 64 \ 4 scan0027 | |
| Solution for jamming sequence starter gears by altering the gear tooth design. | 8th Dec 1927 | Box 64 \ 4 scan0028 | |
| Preliminary trial of a 2A motor on an EAC.7 engine, focusing on the sequence starter's engagement and disengagement issues. | 8th Dec 1927 | Box 64 \ 4 scan0029 | |
| Gear disengagement noise, comparing issues with 50 helical teeth and suggesting a 10° angle as a potential solution. | 8th Dec 1927 | Box 64 \ 4 scan0030 | |
| Selection of a sequence starter scheme (2A, 2B1, or 2B2) for the EAC.1 engine. | 8th Dec 1927 | Box 64 \ 4 scan0031 | |
| Continued internal memo discussing the redesign of a scheme and the decision to abandon a previous version. | 19th Dec 1927 | Box 64 \ 4 scan0032 | |
| Suggestion to pause making helical gears for the 14-EX car and instead test a new motor with helical teeth on the 9-EX car for comparison. | 19th Dec 1927 | Box 64 \ 4 scan0033 | |
| Modifications and arrangements for the Sequence Starter 2A and 2B schemes. | 20th Dec 1927 | Box 64 \ 4 scan0034 | |
| Knock in the starter motor, its cause, and potential remedies. | 28th Apr 1928 | Box 64 \ 4 scan0035 | |
| Starter motor issue and checking Mr. Royce's explanation by fitting a 9-EX starter to an EAC.1 chassis. | 3rd May 1928 | Box 64 \ 4 scan0036 | |
| Fault with the starter on chassis 14-EX, suspecting a broken gear tooth. | 18th May 1928 | Box 64 \ 4 scan0037 | |
| The cause of unevenness in a starter gear, identified as a bad burr on the flywheel ring. | 22th May 1928 | Box 64 \ 4 scan0038 | |
| Starter fitment for the 14-EX car and the design of the starter button. | 31th May 1928 | Box 64 \ 4 scan0039 | |
| Inspection report on starter motor gears, identifying burrs on the flywheel gear ring caused by the pinion disengaging. | 8th Jun 1928 | Box 64 \ 4 scan0040 | |
| Design and advantages of an improved sequence starter motor, with reference to drawing LeC. 2425. | 14th Jun 1927 | Box 64 \ 4 scan0041 | |
| Difficulties and expense of fitting a No.1 sequence starter to an EAC.7 chassis. | 30th Jun 1927 | Box 64 \ 4 scan0042 | |
| List of sequence starter motor and gear schemes with their corresponding reference numbers. | 8th Aug 1927 | Box 64 \ 4 scan0043 | |
| Specification of the armature taper diameters for the J. motor fitted to chassis 14-EX. | 27th Aug 1927 | Box 64 \ 4 scan0044 | |
| Extract discussing proposals for a combined switch and a No. 2B motor on an experimental chassis. | 6th Sep 1927 | Box 64 \ 4 scan0045 | |
| Modifications and obsolescence of sequence starter schedules and components. | 7th Sep 1927 | Box 64 \ 4 scan0046 | |
| Proposal to fit Sequence Starter Scheme No. 2B to car EAC.1. | 12th Oct 1927 | Box 64 \ 4 scan0047 | |
| Manufacturing process for a fully corrected pinion and gear, considering cutting versus grinding methods. | 21th Oct 1927 | Box 64 \ 4 scan0048 | |
| Noisy helical gearing on a sequence starter and the proposal to use a quieter, high-class straight tooth gear. | 20th Oct 1927 | Box 64 \ 4 scan0049 | |
| Jamming issues and improvements in sequence starter designs, comparing the No.1 and No.2A schemes. | 26th Nov 1927 | Box 64 \ 4 scan0050 | |
| Starter motor gear design, comparing spiral and parallel teeth for noise reduction and engagement reliability. | 26th Nov 1927 | Box 64 \ 4 scan0051 | |
| Continued page discussing an experiment using parallel and helical teeth to reduce gear noise. | 28th Nov 1927 | Box 64 \ 4 scan0052 | |
| Wiring diagram for the connections of a Sequence Silent Starter on a 14 E.X. chassis. | 28th Nov 1927 | Box 64 \ 4 scan0053 | |
| Blueprints for a starter motor's gear ring and pinion with corrected helical teeth. | 29th Nov 1927 | Box 64 \ 4 scan0054 | |
| Tendency for starter motors to jam, analyzing tooth design and proposing a new, simpler engagement system. | 12th Dec 1927 | Box 64 \ 4 scan0055 | |
| Page detailing the advantages of a starter motor system compared to others, and the progress on project EAC.10. | 12th Dec 1927 | Box 64 \ 4 scan0056 | |
| Decision on which sequence starter scheme (2A or 2B) to fit to the EAC.1 engine. | 12th Dec 1927 | Box 64 \ 4 scan0057 | |
| Continued memo discussing the redesign of a scheme and the abandonment of a previous version. | 12th Dec 1927 | Box 64 \ 4 scan0058 | |
| Replacing the starter scheme on chassis 9-EX and design details of the motor. | 12th Dec 1927 | Box 64 \ 4 scan0059 | |
| Development of sequence starter schemes 2A and 2B, including modifications to helical and parallel teeth. | 20th Dec 1927 | Box 64 \ 4 scan0060 | |
| Report and the trial of a Sequence Starter 2B1 apparatus. | 21th Dec 1927 | Box 64 \ 4 scan0061 | |
| Design and proportions of a sequence starter mechanism, including gear engagement and helical tooth angles. | 23th Dec 1927 | Box 64 \ 4 scan0062 | |
| Simplified scheme for a sequence starter, detailing the requirements for a new press button switch. | 29th Dec 1927 | Box 64 \ 4 scan0063 | |
| Extract comparing a new sequence starter to the existing Phantom and 20 HP models. | 31th Dec 1927 | Box 64 \ 4 scan0064 | |
| Explaining the incompatibility of a 9-EX starter motor with a test rig designed for a 14-EX model. | 31th Dec 1927 | Box 64 \ 4 scan0065 | |
| Instruction and production of helical gears, comparing hobbing with planing on a Fellowes machine. | 2nd Jan 1928 | Box 64 \ 4 scan0066 | |
| Simplified scheme for a sequence starter, including design specifics and patent considerations. | 4th Jan 1928 | Box 64 \ 4 scan0067 | |
| Description of the control circuits for the Super Sports sequence starter as described in 1928. | 9th Jan 1928 | Box 64 \ 4 scan0068 | |
| Continued discussion of a design scheme, its improvements, patent considerations, and comparison with a 40/50 design from 1913. | 14th Jan 1928 | Box 64 \ 4 scan0069 | |
| Electrical circuits and interlock systems of a Super Sports sequence starter. | 14th Jan 1928 | Box 64 \ 4 scan0070 | |
| Continued discussion on the necessity of carbon contacts in relation to electrical and mechanical interlocks and motor armature inertia. | 14th Jan 1928 | Box 64 \ 4 scan0071 | |
| Initial manufacturing process for a sequence starter's main switch. | 14th Jul 1928 | Box 64 \ 4 scan0072 | |
| Requesting winding particulars for the S.S. Chassis Starter main switch, referencing drawing LeC.2572. | 17th Jul 1928 | Box 64 \ 4 scan0073 | |
| The winding details for the S.S. Chassis Starter Motor Gear No. 2 Scheme. | 18th Jul 1928 | Box 64 \ 4 scan0074 | |
| Oversight in the Sequence Starter No. 2B scheme. | 20th Jul 1928 | Box 64 \ 4 scan0075 | |
| Proposals for starter motor contact protection and design modifications for the sequence starter main switch. | 25th Jul 1928 | Box 64 \ 4 scan0076 | |
| The S.S. Sequence Starter Main Switch. | 26th Jul 1928 | Box 64 \ 4 scan0077 | |
| Request to temporarily remove various switch and actuator components from chassis 9-EX for examination. | 15th Aug 1928 | Box 64 \ 4 scan0078 | |
| Sequence starter, recommending non-inductive resistance as the best and least expensive protection. | 5th Aug 1928 | Box 64 \ 4 scan0079 | |
| Querying the insulation of switch frames for a sequence starter gear scheme, with a handwritten confirmation. | 15th Aug 1928 | Box 64 \ 4 scan0080 | |
| The inspection and necessary repairs for the starting equipment on the 9-EX. | 24th Aug 1928 | Box 64 \ 4 scan0081 | |
| Request to replace springs for a starter motor armature, with a table comparing poundages. | 6th Sep 1928 | Box 64 \ 4 scan0082 | |
| The parts list for an S.S. Chassis Automatic Switch. | 27th Sep 1928 | Box 64 \ 4 scan0083 | |
| Continued list of parts with corresponding drawing numbers, including washers, switches, and terminals. | 27th Sep 1928 | Box 64 \ 4 scan0084 | |
| The unsatisfactory performance of a Sequence Starter Motor and Gear, No. 2B Scheme, on chassis 9-EX. | 10th Oct 1928 | Box 64 \ 4 scan0085 | |
| Analysis of difficulties with armature engagement, including taper adjustments, end thump, and gear noise. | 27th Jul 1928 | Box 64 \ 4 scan0086 | |
| Continued discussion on engine starter motor design, addressing noise, power, and proposing armature modifications. | 27th Jul 1928 | Box 64 \ 4 scan0087 | |
| Urgent production and testing of a new switch for the S.S. Car chassis. | 10th Oct 1928 | Box 64 \ 4 scan0088 | |
| Requesting a test on the 9-EX starter operation with a wedged relay to complete a report. | 11th Oct 1928 | Box 64 \ 4 scan0089 | |
| B.S. Chassis starter motor design, comparing straight and helical teeth. | 11th Oct 1928 | Box 64 \ 4 scan0090 | |
| Use of straight versus helical teeth for an S.S. chassis starter motor. | 12th Oct 1928 | Box 64 \ 4 scan0091 | |
| Two minor failings and subsequent modifications to the Sequence Starter Motor and Gear, No.2B Scheme. | 13th Oct 1928 | Box 64 \ 4 scan0092 | |
| Analysis of a 'B failure' related to spring tension, gear engagement, and resulting operational issues. | 17th Oct 1928 | Box 64 \ 4 scan0093 | |
| The performance of different washers in a sequence starter motor and a proposed solution involving a new armature. | 17th Oct 1928 | Box 64 \ 4 scan0094 | |
| Confirming a request to supply a new starter motor pinion for the 14-EX car. | 7th Nov 1928 | Box 64 \ 4 scan0095 | |
| Providing the arrangement drawing number for a Sequence Starter Push Button Switch. | 28th Nov 1928 | Box 64 \ 4 scan0096 | |
| Expressing concerns about the 'SS' starter motor's lack of power and reliability compared to the existing Phantom motor. | 28th Nov 1928 | Box 64 \ 4 scan0097 | |
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