| Description | Date | Identifier | |
| Letter from S. Smith & Sons about deferring a visit regarding Armoured Car Speedometers. | 27th Aug 1919 | Box 3 \ 5 05-page114 | |
| Letter to S. Smith & Sons Ltd. regarding noise issues with the chassis lighting dynamo. | 30th Aug 1919 | Box 3 \ 5 05-page115 | |
| Letter to Messrs. S. Smith & Sons Ltd. arranging a visit concerning a Chassis Lighting Dynamo. | 3rd Sep 1919 | Box 3 \ 5 05-page116 | |
| Letter from S. Smith & Sons concerning a shipment and order for a spark plug, horn, Klaxons, and lighting sets. | 3rd Sep 1919 | Box 3 \ 5 05-page117 | |
| Correspondence from S. Smith & Sons regarding the postponement of a visit to inspect a Chassis Lighting Dynamo. | 4th Sep 1919 | Box 3 \ 5 05-page118 | |
| Letter from S. Smith & Sons offering to design a special instrument facia set for the Olympia Show. | 9th Sep 1919 | Box 3 \ 5 05-page119 | |
| Return of a clock from Messrs. Smith & Sons, comparing it unfavourably to one from Messrs. Elliott. | 9th Sep 1919 | Box 3 \ 5 05-page120 | |
| Telegram to Fowler Clarke at Roycar Derby regarding an inconvenient visit and that a letter will follow. | 6th Sep 1919 | Box 3 \ 5 05-page121 | |
| Letter to S. Smith & Sons Ltd. arranging a meeting to view a new chassis lighting dynamo. | 11th Sep 1919 | Box 3 \ 5 05-page122 | |
| Letter from S. Smith & Sons arranging a meeting to discuss a Chassis Lighting Dynamo. | 12th Sep 1919 | Box 3 \ 5 05-page123 | |
| Letter from S. Smith & Sons confirming an appointment for Mr. Fowler-Clark. | 19th Sep 1919 | Box 3 \ 5 05-page124 | |
| Extract from a memo regarding electrical parts, specifically distribution boards and dynamos for a 10,000-mile test. | 26th Sep 1919 | Box 3 \ 5 05-page125 | |
| Visit to Smiths, Motor Accessories, regarding their dynamo production and quality methods. | 26th Sep 1919 | Box 3 \ 5 05-page126 | |
| The quality and production of dynamos and lighting sets, with notes on die-cast parts and a finished armature. | 26th Sep 1919 | Box 3 \ 5 05-page127 | |
| Dynamo production, material composition, and proposed vehicle testing. | 26th Sep 1919 | Box 3 \ 5 05-page128 | |
| Table comparing armature winding specifications for various dynamos. | 29th Sep 1919 | Box 3 \ 5 05-page129 | |
| Table of specifications for armature windings in dynamos. | 29th Sep 1919 | Box 3 \ 5 05-page130 | |
| Modifications and testing of distributor and dynamo components. | 29th Sep 1919 | Box 3 \ 5 05-page131 | |
| From 'E' relaying Mr. Royce's instruction to stick with Lucas dynamos and not source from Smith or others. | 14th Oct 1919 | Box 3 \ 5 05-page132 | |
| Letter to S. Smith & Sons Ltd. requesting drawings for a chassis lighting dynamo for a 10,000-mile test. | 14th Oct 1919 | Box 3 \ 5 05-page133 | |
| Letter from S. Smith & Sons regarding the supply and specifications of a Chassis Lighting Dynamo. | 15th Oct 1919 | Box 3 \ 5 05-page134 | |
| Continued experimentation with Smith dynamos versus using a Lucas dynamo for a 10,000-mile test. | 22th Oct 1919 | Box 3 \ 5 05-page135 | |
| Correspondence with Messrs. Smith & Sons Ltd. regarding a lighting dynamo sample and drawings. | 22th Oct 1919 | Box 3 \ 5 05-page136 | |
| Letter from S. Smith & Sons acknowledging receipt of a favour and confirming the despatch of a sample Lighting Dynamo. | 23th Oct 1919 | Box 3 \ 5 05-page137 | |
| Requesting a scheme for fitting a Smith dynamo to the 10,000-mile test car as a potential replacement for the Lucas dynamo. | 22th Nov 1919 | Box 3 \ 5 05-page138 | |
| Letter to S. Smith & Sons inquiring about the progress of a special sample lighting dynamo. | 26th Nov 1919 | Box 3 \ 5 05-page139 | |
| Letter acknowledging a previous favour and advising that the question of the sample lighting dynamo is being taken up with their Electrical Engineer. | 14th Nov 1919 | Box 3 \ 5 05-page140 | |
| Letter from S. Smith & Sons regarding a sample Model MP Dynamo being sent for inspection. | 18th Dec 1929 | Box 3 \ 5 05-page141 | |
| Notification of the receipt of a second, improved Smith dynamo. | 22th Dec 1919 | Box 3 \ 5 05-page142 | |
| Follow-up letter from S. Smith & Sons regarding a sample dynamo and offering engineering assistance for testing. | 9th Jan 1919 | Box 3 \ 5 05-page143 | |
| Requesting the disassembly of an improved Smith dynamo for examination. | 10th Jan 1919 | Box 3 \ 5 05-page144 | |
| Letter to S. Smith & Sons, Ltd. regarding delays in testing their new chassis lighting dynamo. | 10th Jan 1920 | Box 3 \ 5 05-page145 | |
| Letter from S. Smith & Sons regarding a sample Dynamo for a 10,000-mile test car and offering other dashboard instruments. | 14th Jan 1920 | Box 3 \ 5 05-page146 | |
| Specification sheet detailing the particulars of two types of 12-volt chassis dynamos. | 14th Jan 1920 | Box 3 \ 5 05-page147 | |
| Instructions comparing a Type 2D Smith Dynamo to a Type A machine, noting differences in brush material. | 14th Jul 1920 | Box 3 \ 5 05-page148 | |
| Instructions to improve a component by using thicker insulation to prevent leakage from copper dust. | 1st Jun 1933 | Box 3 \ 5 05-page149 | |
| Badly fitted brush gear and plate on a Type 2D post, noting distortion from a hard blow. | 2nd Feb 1920 | Box 3 \ 5 05-page150 | |
| Confirming the return of Smith's recorders to their makers after being sent for approval. | 2nd Feb 1920 | Box 3 \ 5 05-page151 | |
| Instructions diagnosing a mechanical noise fault in a Smith Dynamo Type 2D when hot. | 13th Feb 1922 | Box 3 \ 5 05-page152 | |
| Instructions regarding the battery and a comparison of dynamo noise levels. | 4th Nov 1913 | Box 3 \ 5 05-page153 | |
| Letter from Smiths Publicity Service regarding a delayed dispatch of a motor accessories catalogue. | 18th Feb 1920 | Box 3 \ 5 05-page154 | |
| Letter from supplier S. Smith & Sons enquiring about the results of tests on a dynamo. | 26th Feb 1920 | Box 3 \ 5 05-page155 | |
| Letter to S. Smith & Sons Ltd. detailing faults and feedback on a new dynamo. | 26th Feb 1920 | Box 3 \ 5 05-page156 | |
| Continued letter discussing issues with electrical connections, insulating materials, and delayed dynamo tests. | 24th Oct 1923 | Box 3 \ 5 05-page157 | |
| Proposal to trial the Smith machine as a potential replacement for the underperforming Lucas model. | 1st Mar 1920 | Box 3 \ 5 05-page158 | |
| Need for a decision regarding the dynamo for chassis built after number 1000. | 1st Mar 1920 | Box 3 \ 5 05-page159 | |
| The methodology for observing 'balancing speeds' for Lucas and Smith chassis lighting dynamos. | 4th Mar 1920 | Box 3 \ 5 05-page160 | |
| Continued report on dynamo heating tests, comparing temperature measurement methods and analyzing cut-in speeds. | 1st Mar 1920 | Box 3 \ 5 05-page161 | |
| The performance and testing of Smith type A and 2D dynamos. | 4th Mar 1920 | Box 3 \ 5 05-page162 | |
| The experimental investigation and comparison of Lucas and Smith dynamos. | 4th Mar 1920 | Box 3 \ 5 05-page163 | |
| Acquiring a machine from the Smith Company for inspection and evaluation. | 1st Mar 1920 | Box 3 \ 5 05-page164 | |
| Observations of cutting-in speeds for Smith (T & M) chassis lighting dynamos. | 4th Mar 1920 | Box 3 \ 5 05-page165 | |
| Letter to S. Smith & Sons, Ltd. concerning test results and issues with a sample Chassis Lighting Dynamo. | 4th Mar 1920 | Box 3 \ 5 05-page166 | |
| Letter from S. Smith & Sons regarding outstanding account items from a previous proforma invoice. | 5th Mar 1920 | Box 3 \ 5 05-page167 | |
| Comparing the output speed curves of Lucas E.575 and Smith (T & M) Type A dynamos. | 5th Mar 1920 | Box 3 \ 5 05-page168 | |
| Test results and performance curves for the Smith (T & M) Type A Dynamo. | 5th Mar 1920 | Box 3 \ 5 05-page169 | |
| Page 2 of a document discussing the effect of using half control and inserting resistances in control circuits. | 1st Mar 1920 | Box 3 \ 5 05-page170 | |
| Graph of output-speed curves comparing a Smith (Type A) dynamo against other models. | 14th Aug 1920 | Box 3 \ 5 05-page171 | |
| Forwarding reports, tables, and curves regarding the Smith (T & M) Type A Dynamo. | 5th Mar 1920 | Box 3 \ 5 05-page172 | |
| Internal memorandum arranging a meeting with representatives from Messrs. Smith to discuss their dynamos. | 8th Mar 1920 | Box 3 \ 5 05-page173 | |
| Introductory page explaining the principles of the Smith Constant Current Dynamo. | 8th Mar 1920 | Box 3 \ 5 05-page174 | |
| Diagram illustrating the workings of The Smith Constant Current Dynamo. | 8th Mar 1920 | Box 3 \ 5 05-page175 | |
| Description of the Smith Constant Current Dynamo's operation, connections, current curves and regulation. | 8th Mar 1920 | Box 3 \ 5 05-page176 | |
| Performance graph for The Smith Constant Current Dynamo, plotting Amperes against Revolutions Per Minute. | 8th Mar 1920 | Box 3 \ 5 05-page177 | |
| Technical explanation of the Smith Constant Current Dynamo, detailing magnetic fields and armature reactions. | 8th Mar 1920 | Box 3 \ 5 05-page178 | |
| Page with four diagrams illustrating the principles of the Smith Constant Current Dynamo. | 8th Mar 1920 | Box 3 \ 5 05-page179 | |
| Page describing the operation and advantages of the Smith Constant Current Variable Speed Dynamo. | 8th Mar 1920 | Box 3 \ 5 05-page180 | |
| Explanation of the Smith Constant Current Dynamo, focusing on armature reaction and output adjustment. | 4th Feb 1920 | Box 3 \ 5 05-page181 | |
| Instruction sheet with test results for a Smiths Dynamo (Type 2D) under cold conditions, showing speed, amps, and volts. | 4th Feb 1920 | Box 3 \ 5 05-page182 | |
| Instruction sheet with handwritten numerical data recorded in columns. | 4th Nov 1918 | Box 3 \ 5 05-page183 | |
| Instruction sheet with test results for a Smith 2 D.O.D. Dynamo, showing amperage at various speeds. | 16th Feb 1920 | Box 3 \ 5 05-page184 | |
| Instruction sheet designated 'II', containing a two-column list of handwritten numerical data. | 23th Feb 1920 | Box 3 \ 5 05-page185 | |
| Letter from S. Smith & Sons regarding modifications for a Revolver Charge on a Tudor Chassis. | 23th Feb 1920 | Box 3 \ 5 05-page186 | |
| Letter discussing the selection, testing, and expedited delivery of special dynamos and apparatus. | 13th Mar 1920 | Box 3 \ 5 05-page187 | |
| Visit from suppliers regarding the production and supply of Smith (T & M) Types A & 2D dynamos. | 13th Mar 1920 | Box 3 \ 5 05-page188 | |
| Dynamo improvements, including armature design, insulating materials, and performance curves. | 13th Mar 1920 | Box 3 \ 5 05-page189 | |
| Dynamo performance, battery charging characteristics, and proposed specifications. | 13th Mar 1920 | Box 3 \ 5 05-page190 | |
| The operating voltage of cut-outs, temperature coefficients, and contact point materials. | 13th Mar 1920 | Box 3 \ 5 05-page191 | |
| Alternative switchbox and cutout configurations following the potential adoption of the Smith dynamo. | 4th May 1938 | Box 3 \ 5 05-page192 | |
| Comparison of Smith dynamos with Smith cut-outs versus Lucas dynamos with Lucas cut-outs. | 16th Mar 1920 | Box 3 \ 5 05-page193 | |
| Testing procedures and results for electrical cut-outs, comparing different models and analysing operational phenomena. | 16th Mar 1920 | Box 3 \ 5 05-page194 | |
| Report page detailing the operating voltages of Lucas and Smith electrical cut-outs under various test conditions. | 16th Mar 1920 | Box 3 \ 5 05-page195 | |
| Voltage tests on Lucas and Smith cut-outs under various conditions. | 16th Mar 1920 | Box 3 \ 5 05-page196 | |
| Performance data table for Lucas dynamos and cut-outs, showing speed, voltage, and amperage under cold and hot conditions. | 16th Mar 1920 | Box 3 \ 5 05-page197 | |
| Test results for a Smith Lyne A dynamo with an Old Smith cut-out and a Smith type 2D dynamo with a New Smith cut-out. | 16th Mar 1920 | Box 3 \ 5 05-page198 | |
| Test results and analysis for a Lucas E.5754 No.402 Dynamo and a New Exol. S.E. cut-out. | 16th Mar 1930 | Box 3 \ 5 05-page199 | |
| Comparison and analysis of Smith versus Lucas electrical cut-outs, including a teardown of a Lucas unit. | 16th Mar 1920 | Box 3 \ 5 05-page200 | |
| Continued report on the behaviour of a shunt winding electrical system. | 16th Mar 1920 | Box 3 \ 5 05-page201 | |
| Volt-speed characteristic (Open Circuit) test results for a 'Smud Type A' Dynamo under cold conditions. | 11th Feb 1930 | Box 3 \ 5 05-page202 | |
| Instruction sheet detailing the cold volt-speed characteristics for a Smith Type 2D(O) Dynamo. | 19th Mar 1920 | Box 3 \ 5 05-page203 | |
| Testing and standardization status of a starter motor, ignition coil, and dynamo. | 30th Mar 1929 | Box 3 \ 5 05-page204 | |
| Letter to S. Smith & Sons Ltd. following up on the dispatch of a standard Chassis Dynamo. | 31th Mar 1920 | Box 3 \ 5 05-page205 | |
| Letter from S. Smith & Sons regarding a Model 29 Dynamo and experimental armatures. | 1st Apr 1920 | Box 3 \ 5 05-page206 | |
| Letter from S. Smith & Sons (Motor Accessories), Ltd. to Messrs. Rolls-Royce Ltd. | 1st Apr 1920 | Box 3 \ 5 05-page207 | |
| The evaluation and procurement of Smith dynamos and cut-outs. | 1st Apr 1920 | Box 3 \ 5 05-page208 | |
| Obtaining road experience, inspection by Mr. Royce, and the conditions for experimental tests. | 7th Apr 1920 | Box 3 \ 5 05-page209 | |
| Follow-up memo requesting the continuation of work on a scheme to fix a Smith dynamo to the chassis. | 7th Apr 1920 | Box 3 \ 5 05-page210 | |
| Letter to Smith & Sons Ltd. regarding an order for two special chassis lighting dynamos for prolonged testing. | 7th Apr 1920 | Box 3 \ 5 05-page211 | |
| Page 2 of a letter confirming a payment has been made and expressing a wish to keep an item. | 8th Apr 1920 | Box 3 \ 5 05-page212 | |
| Modifications to the R.R. distribution board for use with a Smith dynamo. | 8th Apr 1920 | Box 3 \ 5 05-page213 | |
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