| Description | Date | Identifier | |
| The standardization of C.M.3 Copper Morganite Brushes for the starter motor. | 12th May 1920 | Box 35 \ 1 scan 069 | |
| Chasing Mr. Royce for a signed standardisation sheet for C.M.3 Copper Morganite Brushes. | 20th May 1920 | Box 35 \ 1 scan 070 | |
| Standardisation sheet for copper morganite brushes for a starter motor. | 21th May 1920 | Box 35 \ 1 scan 071 | |
| Standardisation of C.M.3 copper morganite brushes for the starter motor. | 23th Apr 1920 | Box 35 \ 1 scan 072 | |
| Test report on C.M.3 Copper Morganite brushes for a starter motor. | 22th Apr 1920 | Box 35 \ 1 scan 073 | |
| Prolonged test of C.M.3 Morganite brushes and N.1760 brush springs on a starter motor. | 31th May 1920 | Box 35 \ 1 scan 074 | |
| Letter to The Morgan Crucible Co. Ltd. regarding faulty brushes from an experimental dynamo. | 25th Jun 1920 | Box 35 \ 1 scan 075 | |
| Comparing the performance and quality of LeCarbone and Morganite carbon brushes for dynamos. | 29th Jun 1920 | Box 35 \ 1 scan 076 | |
| Letter from The Morgan Crucible Company diagnosing an issue with dynamo brushes and sending replacements. | 30th Jun 1920 | Box 35 \ 1 scan 077 | |
| Letter from The Morgan Crucible Company, Limited regarding a commutator and brushes. | 30th Jun 1920 | Box 35 \ 1 scan 078 | |
| Letter to The Morgan Crucible Co. Ltd. acknowledging their letter regarding Dynamo Brushes. | 1st Jul 1920 | Box 35 \ 1 scan 079 | |
| Order for a dozen Morganite brushes for a motor used for dynamo testing. | 1st Jul 1920 | Box 35 \ 1 scan 080 | |
| Letter from The Morgan Crucible Company regarding an order for Morganite Brushes, requesting a sample or sketch to show the style of terminals required. | 19th Jul 1920 | Box 35 \ 1 scan 081 | |
| Letter from F. Miller & Co. offering Copper Oxide for manufacturing non-sparking brushes for automobile self-starters. | 19th Jul 1920 | Box 35 \ 1 scan 082 | |
| To Mr Clark detailing the receipt of various parts from multiple suppliers. | 19th Aug 1920 | Box 35 \ 1 scan 083 | |
| Specifications for the fitment of starter motor brushes and springs on various chassis. | 24th Aug 1920 | Box 35 \ 1 scan 084 | |
| Wiring, starter motor, and brush holders on specific chassis. | 24th Aug 1920 | Box 35 \ 1 scan 085 | |
| Comparing 'Le Carbone' and 'Morganite' brushes and arranging vehicle wiring and scuttle corrections. | 4th Jun 1920 | Box 35 \ 1 scan 086 | |
| Letter to Morgan Crucible Company Ltd. regarding the weak material proposed for new commutator brushes on order number 3553. | 22th Sep 1920 | Box 35 \ 1 scan 087 | |
| Supply and quality of starter motor brushes from the Morgan Crucible Co. | 23th Sep 1920 | Box 35 \ 1 scan 088 | |
| The order of a 12 Volt Starter Battery from Messrs. Lucas. | 20th Oct 1916 | Box 35 \ 1 scan 089 | |
| Letter from Joseph Lucas Ltd. advising that a 12v starter battery has been sent for testing. | 31th Oct 1916 | Box 35 \ 1 scan 090 | |
| List of planned electrical car experiments, including starter motor, brake, and battery tests. | 8th Nov 1916 | Box 35 \ 1 scan 091 | |
| Extract from a letter from Messrs. Lucas regarding tests on a starter battery. | 24th Apr 1917 | Box 35 \ 1 scan 092 | |
| Letter to Lucas Ltd. regarding the delivery and testing of a lighting dynamo and starter battery for an experimental post-war chassis. | 2nd May 1917 | Box 35 \ 1 scan 093 | |
| Test report on a 12-volt car lighting and starting Lucas battery. | 9th Aug 1917 | Box 35 \ 1 scan 094 | |
| Letter to J. Lucas Ltd. regarding a special dynamo for a post-war chassis and a starter battery. | 16th Oct 1917 | Box 35 \ 1 scan 095 | |
| Letter discussing the testing of a battery with reduced capacity and requesting advice on its treatment. | 18th Oct 1917 | Box 35 \ 1 scan 096 | |
| Extract from a letter from Messrs. Lucas regarding a special dynamo and starter battery for the post-war chassis. | 18th Oct 1917 | Box 35 \ 1 scan 097 | |
| Extract from a communication about retaining a starter battery until a replacement is received. | 26th Apr 1917 | Box 35 \ 1 scan 098 | |
| The distribution of a switchbox and starter battery from Lucas for a dynamo. | 25th Oct 1917 | Box 35 \ 1 scan 099 | |
| Letter chasing the delivery of a 12 Volt Starter Battery from Messrs. Joseph Lucas, Ltd. | 21th Nov 1917 | Box 35 \ 1 scan 100 | |
| Letter from Joseph Lucas Ltd regarding a delay in dispatching a special 12-volt battery. | 23th Nov 1917 | Box 35 \ 1 scan 101 | |
| Letter to Lucas Ltd. concerning the return and replacement of a 12-volt starter battery. | 27th Dec 1917 | Box 35 \ 1 scan 102 | |
| Letter to J. Lucas Ltd. regarding the testing of a new 12-volt starter battery and an offer for an older battery. | 12th Jan 1918 | Box 35 \ 1 scan 103 | |
| Letter from Joseph Lucas Limited quoting a price for an old 12v starter battery and awaiting test results on a new type. | 17th Jan 1918 | Box 35 \ 1 scan 104 | |
| Discharge capacity test results for a new type Lucas starter battery. | 24th Jan 1918 | Box 35 \ 1 scan 105 | |
| Letter to J. Lucas Ltd. regarding the testing of a 12-volt starter battery and a request for another for car trials. | 13th Nov 1918 | Box 35 \ 1 scan 106 | |
| Letter from Joseph Lucas Ltd. concerning the supply of a sample 12v starter battery and requesting an official order. | 14th Nov 1918 | Box 35 \ 1 scan 107 | |
| Official order be placed with Messrs. Lucas for a starter battery and a dynamo. | 18th Nov 1918 | Box 35 \ 1 scan 108 | |
| The dimensions for a Lucas accumulator with a lid. | 25th Nov 1918 | Box 35 \ 1 scan 109 | |
| Note about the receipt of a 12-volt chassis lighting and starting battery from Messrs. J. Lucas Ltd. | 22th Jan 1919 | Box 35 \ 1 scan 110 | |
| Optimal position and design for starter batteries. | 1st Feb 1919 | Box 35 \ 1 scan 111 | |
| Letter discussing arrangements with the Tudor Company to create trial batteries and detailing the required specifications. | 1st Feb 1919 | Box 35 \ 1 scan 112 | |
| The bench testing and analysis of lighting and starting batteries, with a detailed review of a C.A.V. battery. | 5th Feb 1919 | Box 35 \ 1 scan 113 | |
| Technical review and critique of a Lucas battery's design and features, with a sketch and dimensions. | 5th Feb 1919 | Box 35 \ 1 scan 114 | |
| Battery cell leakage, electrolytic connections, and testing methods for 4-volt accumulators. | 28th Apr 1917 | Box 35 \ 1 scan 115 | |
| Technical report discussing car battery designs, suppliers, and comparisons with C.A.V. models. | 5th Feb 1919 | Box 35 \ 1 scan 116 | |
| Visit from Exide (Chloride) and the potential order of a B.X.E. type battery for experimentation. | 5th Feb 1919 | Box 35 \ 1 scan 117 | |
| Discharge capacity test chart for a Lucas 60AH lighting and starting battery. | 10th Oct 1928 | Box 35 \ 1 scan 118 | |
| Request to the Print Room for photostat copies of C.A.V. and Lucas battery discharge curves for the Experimental Department D.O. | 7th Feb 1919 | Box 35 \ 1 scan 119 | |
| Discharge test report for a Lucas battery, detailing its ampere-hour capacity. | 1st Feb 1919 | Box 35 \ 1 scan 120 | |
| Two Lucas batteries, one sent to Mr. Royce and another recently received, detailing its performance test results. | 1st Feb 1919 | Box 35 \ 1 scan 121 | |
| The discharge capacity tests of Lucas and C.A.V. starting and lighting batteries. | 18th Feb 1919 | Box 35 \ 1 scan 122 | |
| Results of short-period battery tests, observing the heating of links on various battery types. | 15th Apr 1919 | Box 35 \ 1 scan 123 | |
| Assessment of a Lucas 60 ampere hour celluloid battery, detailing its electrical performance and physical construction. | 2nd May 1919 | Box 35 \ 1 scan 124 | |
| The choice of batteries for the first few 40/50 HP chassis. | 12th May 1919 | Box 35 \ 1 scan 125 | |
| The temporary use of Chloride batteries and old-type boxes, before a new Lucas battery and box design is implemented. | 14th May 1919 | Box 35 \ 1 scan 126 | |
| Letter from Joseph Lucas Ltd. concerning a sample battery forwarded for examination against specification. | 5th Jun 1919 | Box 35 \ 1 scan 127 | |
| Letter from Joseph Lucas Ltd regarding a sample battery sent for testing, noting a dimensional difference in the bottom blocks. | 8th Jun 1919 | Box 35 \ 1 scan 128 | |
| Table detailing the results of S.S. motor battery tests. | 7th Jun 1919 | Box 35 \ 1 scan 129 | |
| Extract from Lucas Ltd. regarding objections to a sample battery and the dispatch of a replacement. | 12th Aug 1919 | Box 35 \ 1 scan 130 | |
| Issues and proposed modifications for Lucas dynamos, specifically bearings and armature slots. | 13th Aug 1919 | Box 35 \ 1 scan 131 | |
| Wiring arrangements, dynamo pulley modifications, and a comparison of battery suppliers. | 13th Aug 1919 | Box 35 \ 1 scan 132 | |
| Letter from Joseph Lucas Ltd concerning a sample battery and specification. | 18th Aug 1919 | Box 35 \ 1 scan 133 | |
| Letter to Messrs. J. Lucas regarding a miscarried letter and a delayed battery test. | 20th Aug 1919 | Box 35 \ 1 scan 134 | |
| Special Lucas battery for experimental purposes that was mistakenly sent away, and the proposed corrective actions. | 9th Sep 1919 | Box 35 \ 1 scan 135 | |
| Responding to an enquiry about a special Lucas battery accumulator. | 1st Sep 1919 | Box 35 \ 1 scan 136 | |
| Letter from J. Lucas Ltd. regarding a mislaid special battery and a replacement being sent for testing. | 5th Sep 1919 | Box 35 \ 1 scan 137 | |
| To Mr. Clarke regarding a letter received from J. Lucas Ltd about a special battery delivery. | 11th Sep 1919 | Box 35 \ 1 scan 138 | |
| Receipt of a Lucas Special Battery for testing. | 31th Oct 1919 | Box 35 \ 1 scan 139 | |
| Form for recording the routine treatment of a Lucas Type 1260 C/3 car battery. | 4th Nov 1919 | Box 35 \ 1 scan 140 | |
| Battery testing report detailing charge cycles, weight, cell densities, and discharge performance. | 4th Nov 1919 | Box 35 \ 1 scan 141 | |
| Test log detailing cell densities, battery charging cycles, and discharge performance. | 4th Nov 1919 | Box 35 \ 1 scan 142 | |
| Log sheet detailing cell densities and fourth charge data, including amperes and hours. | 8th Dec 1919 | Box 35 \ 1 scan 143 | |
| Listing the weights of various battery models. | 8th Dec 1919 | Box 35 \ 1 scan 144 | |
| Evaluation of the good and bad points of a Lucas 1260 c/3 battery. | 15th Dec 1919 | Box 35 \ 1 scan 145 | |
| The condition and safety concerns of a vehicle battery, noting issues with vent plugs and the carrying sling. | 15th Dec 1919 | Box 35 \ 1 scan 146 | |
| The difficulties of maintaining accumulator cells, particularly regarding surface leakage, and proposals for improved charging systems. | 15th Mar 1920 | Box 35 \ 1 scan 147 | |
| Requesting feedback on the experience with specific electrical parts on chassis 7-CA, with handwritten responses. | 17th May 1920 | Box 35 \ 1 scan 148 | |
| Test results of a Lucas chassis lighting and starting battery, including weight, construction, and discharge tests. | 11th May 1920 | Box 35 \ 1 scan 149 | |
| Results of intermittent high-rate discharge tests performed on a battery. | 6th Aug 1919 | Box 35 \ 1 scan 150 | |
| Technical review and report on Lucas batteries, noting issues with high rate discharge tests and safety. | 18th May 1920 | Box 35 \ 1 scan 151 | |
| Letter from The Lucas Electrical Company Ltd acknowledging receipt of a comprehensive criticism of battery tests. | 19th May 1920 | Box 35 \ 1 scan 152 | |
| Potential battery orders and trials with Lucas Electrical Co. Ltd. | 17th Jun 1920 | Box 35 \ 1 scan 153 | |
| Letter from Lucas Electrical Company discussing the performance results and design considerations of a lighting and starting battery after testing. | 11th Jun 1920 | Box 35 \ 1 scan 154 | |
| Continuation letter from Lucas Electrical Co. Ltd. proposing to supply batteries to a specific requirement. | 11th Jun 1920 | Box 35 \ 1 scan 155 | |
| Letter discussing Lucas batteries and the controversy over the use of thick versus thin battery plates. | 19th Jun 1920 | Box 35 \ 1 scan 156 | |
| Continued discussion on the performance comparison of various car batteries, including Chloride, Lucas, Tudor, and American types. | 19th Jun 1920 | Box 35 \ 1 scan 157 | |
| Correspondence with Lucas Electrical Co. Ltd. regarding the specifications and trial of batteries. | 23th Jun 1920 | Box 35 \ 1 scan 158 | |
| Extract comparing the failure rates of Chloride, Lucas, and Willard batteries on experimental cars. | 2nd Sep 1920 | Box 35 \ 1 scan 159 | |
| Reliability and sourcing of batteries for experimental cars. | 9th Sep 1920 | Box 35 \ 1 scan 160 | |
| Battery failures and the testing of alternative Lucas batteries on experimental cars. | 6th Sep 1920 | Box 35 \ 1 scan 161 | |
| Record card detailing the service history and performance of a Lucas 1260 C/1 battery. | 1st Jul 1922 | Box 35 \ 1 scan 162 | |
| Instruction note regarding the installation of a Lucas battery on chassis 4.EX. | 13th Oct 1920 | Box 35 \ 1 scan 163 | |
| Letter to Lucas Electrical Co. Ltd. regarding dynamo output, battery testing, and a preference for ebonite battery containers. | 20th Oct 1920 | Box 35 \ 1 scan 164 | |
| Record of tests and service for battery No. 20, a Lucas 1260 c/3. | 5th Oct 1920 | Box 35 \ 1 scan 165 | |
| Acquisition and trial of Peto & Radford and Lucas batteries for the Goshawk model. | 26th Sep 1921 | Box 35 \ 1 scan 166 | |
| Proposing a test of a new Lucas battery against standard specifications. | 24th Feb 1925 | Box 35 \ 1 scan 167 | |
| Testing of Lucas batteries and quoting standard battery dimensions for the 40/50 model. | 3rd Mar 1925 | Box 35 \ 1 scan 168 | |
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