| Description | Date | Identifier | |
| Letter to Park Ward & Co. Ltd. concerning the all-metal construction and heater/defroster installation for Mr. Sidgreaves' new Wraith III. | 12th Jan 1939 | Box 168a \ 4 img108 | |
| Letter requesting an elevation drawing of the screen rail showing Lucas wiper components. | 15th Feb 1939 | Box 168a \ 4 img109 | |
| The despatch of specific parts for chassis 14.B.V. | 15th Feb 1939 | Box 168a \ 4 img110 | |
| List of material modifications for Bentley Chassis 11.B.V. and 12.B.V. | 3rd Mar 1939 | Box 168a \ 4 img111 | |
| List of additional parts to be ordered per chassis, including horns, brackets, and a windscreen wiper. | 3rd Mar 1939 | Box 168a \ 4 img112 | |
| Order for accessories for a Bentley Chassis 4.B.50 named 'CRESTA'. | 16th May 1939 | Box 168a \ 4 img113 | |
| Required adjustments and replacements for electrical units from car 8.B.V. | 19th May 1939 | Box 168a \ 4 img114 | |
| The confusion, delay, and trouble in procuring electrical instruments for new experimental cars. | 20th May 1939 | Box 168a \ 4 img115 | |
| Requesting instruments be made available for Continental chassis 14.B.V. for testing on June 6th. | 23th May 1939 | Box 168a \ 4 img116 | |
| Specification details for the Silver Ripple model, covering the instrument board and electrical fittings. | 27th May 1939 | Box 168a \ 4 img117 | |
| Delays with outside suppliers of electrical units and the need to expedite order placement. | 26th Jun 1939 | Box 168a \ 4 img118 | |
| List of specifications for six Bentley 'Corniche' chassis, comparing English and French models. | 5th Jul 1939 | Box 168a \ 4 img119 | |
| The instrument specifications for English and French Corniche models and an urgent parts dispatch request. | 5th Jul 1939 | Box 168a \ 4 img120 | |
| Requesting the removal of a starter motor, ignition coil, and battery from a Buick for examination. | 11th Jul 1939 | Box 168a \ 4 img121 | |
| Difficulty in obtaining petrol gauges and warning lights due to a supply issue with the makers. | 11th Jul 1939 | Box 168a \ 4 img122 | |
| Listing outstanding orders for electrical units needed for six Bentley Corniche chassis. | 14th Jul 1939 | Box 168a \ 4 img123 | |
| Material requirements for six Bentley 'Corniche' chassis, covering tail lamps, number plates, and horns. | 18th Jul 1939 | Box 168a \ 4 img124 | |
| Chasing an order for various electrical car units and listing the outstanding items. | 9th Aug 1939 | Box 168a \ 4 img125 | |
| Weight of electrical equipment, specifically headlamps and wiring for various car models. | 24th Aug 1939 | Box 168a \ 4 img126 | |
| Letter from Joseph Lucas Limited enclosing the specification for the 16 HP Car. | 23th Oct 1939 | Box 168a \ 4 img127 | |
| Specification page from Joseph Lucas Limited listing various automotive components and parts. | 23th Oct 1939 | Box 168a \ 4 img128 | |
| From Joseph Lucas Limited regarding vehicle components such as electric wipers and fog lamps. | 23th Oct 1939 | Box 168a \ 4 img129 | |
| Sourcing of accessories such as wing lamps, heaters, and screen wipers for a Silver Phantom chassis (31.G.7). | 4th Nov 1939 | Box 168a \ 4 img130 | |
| List of electrical units required for car 31.G.VII, to be ordered from suppliers J. Lucas and Smith. | 30th Nov 1939 | Box 168a \ 4 img131 | |
| Typed list of required parts including a speedometer cable, lamps, and a battery. | 30th Nov 1939 | Box 168a \ 4 img132 | |
| Letter from Joseph Lucas Limited discussing the suitability and ongoing development of starter motors, ignition coils, and distributors. | 9th Nov 1939 | Box 168a \ 4 img133 | |
| Letter from Joseph Lucas Ltd discussing the supply and development of dynamo brackets, regulator units, de-froster units, and sidelamps. | 9th Nov 1939 | Box 168a \ 4 img134 | |
| Letter to Park Ward & Co. Ltd. regarding the screen wiper and colour finish for a Silver Ripplet car. | 4th Dec 1939 | Box 168a \ 4 img135 | |
| Letter from Joseph Lucas Limited regarding a Model S.W.4 Screen Wiper with Demister ducts, Dip and Switch Reflectors, and Perspex Headlamp Glasses. | 6th Dec 1939 | Box 168a \ 4 img136 | |
| Letter from Joseph Lucas Limited regarding the imminent despatch of two pairs of Bentley Wing Lamps. | 6th Dec 1939 | Box 168a \ 4 img137 | |
| Laboratory advice note regarding modifications and recommendations for an S.W.4 12 Volt Screenwiper. | 4th Dec 1939 | Box 168a \ 4 img138 | |
| Technical memorandum regarding the most efficient arrangement for ignition coil windings. | 13th Dec 1939 | Box 168a \ 4 img139 | |
| Analysis of ignition coil wiring configurations and earth systems to optimize output voltage. | 13th Dec 1939 | Box 168a \ 4 img140 | |
| Letter discussing progress on a screen wiper, special dynamo, Bentley sidelamps, and cabling for trafficators and horns. | 15th Dec 1939 | Box 168a \ 4 img141 | |
| Letter regarding the supply of special cables for a horn and trafficator and a suggestion for testing an alternative. | 15th Dec 1939 | Box 168a \ 4 img142 | |
| Letter from a supplier regarding orders for ammeters, cables, grommets, and other parts, citing delays due to war work pressures. | 4th Jan 1940 | Box 168a \ 4 img143 | |
| Page 2 of a letter from Joseph Lucas Limited regarding the completion of drawings. | 4th Jan 1940 | Box 168a \ 4 img144 | |
| Letter to A.T. Speedometer Co. Ltd. requesting a sample of a new indirect lighting scheme for instruments. | 9th Jan 1940 | Box 168a \ 4 img145 | |
| Letter from Joseph Lucas Limited regarding a sample headlamp and special cable. | 11th Jan 1940 | Box 168a \ 4 img146 | |
| List of recommendations for the electrical components for the Ripplet (2.R.2) car model. | 5th Feb 1940 | Box 168a \ 4 img147 | |
| List of available special electrical units including dynamos, starter motors, batteries, and distributors. | 5th Feb 1940 | Box 168a \ 4 img148 | |
| Comparison of the Delco-Remy distributor against the standard R.R. unit for ignition performance on the Wraith model. | 12th Feb 1940 | Box 168a \ 4 img149 | |
| Energy loss in primary windings and a recommendation for a single lever Delco-Remy distributor. | 12th Feb 1940 | Box 168a \ 4 img150 | |
| Graph showing the characteristics of a coil using a Delco-Remy distributor, plotting current against speed. | 18th Jan 1940 | Box 168a \ 4 img151 | |
| Performance graph for distributors showing current versus RPM for single and double lever configurations. | 18th Jan 1940 | Box 168a \ 4 img152 | |
| List of parts required for the 'Silver Ripplet 2 - R -11' car, detailing part numbers and procurement instructions. | 12th Feb 1940 | Box 168a \ 4 img153 | |
| Temporary solutions and spare parts for electrical units on the Ripplet 1 H-11 car. | 14th Feb 1940 | Box 168a \ 4 img154 | |
| Experimental fitting of a Lucas Regulator Cutout unit and a Delco-Remy distributor for the Ripplet class car. | 19th Feb 1940 | Box 168a \ 4 img155 | |
| Note clarifying the supply and function of dynamo pulleys, noting they act as a fan. | 19th Feb 1940 | Box 168a \ 4 img156 | |
| Requesting approval to purchase a Radio Analyser from the Western Electric Instrument Co. Ltd. | 1st Mar 1940 | Box 168a \ 4 img157 | |
| Requesting the electrical specification for Bentley 40 - 4 cylinder units. | 12th Mar 1940 | Box 168a \ 4 img158 | |
| Weighing parts to be fitted to a Ripplet chassis to obtain an accurate final weight. | 16th Mar 1940 | Box 168a \ 4 img159 | |
| Requesting the fitting of Lucas electrical components to a B.60 No.2 engine. | 30th Mar 1940 | Box 168a \ 4 img160 | |
| Requesting the fitting of various Lucas electrical components to a B.60 No.1 engine and changing the battery earth to positive. | 30th Jul 1940 | Box 168a \ 4 img161 | |
| List of required electrical units and modifications for the B.40 Engine No.1. | 8th Apr 1940 | Box 168a \ 4 img162 | |
| The non-receipt of units to be fitted to a Bentley 60 No.3 - 9.B.Y. Chassis. | 2nd Apr 1940 | Box 168a \ 4 img163 | |
| Requesting the creation of a servicing booklet for a rationalized range of chassis with cast iron engines. | 10th Apr 1940 | Box 168a \ 4 img164 | |
| Electrical specification document for the B60 No. 5 engine. | 19th Apr 1940 | Box 168a \ 4 img165 | |
| Electrical specification for B60 No.6 engine unit. | 19th Apr 1940 | Box 168a \ 4 img166 | |
| Parts and drawings list for the L.H. Senior Range dashboard, wiring, distribution board, and regulator components. | 4th Apr 1940 | Box 168a \ 4 img167 | |
| List of modification instructions and notices continued from a previous page, organized by section. | 30th Aug 1938 | Box 168a \ 4 img168 | |
| Requesting an order for various electrical units for B.80 engines. | 10th May 1940 | Box 168a \ 4 img169 | |
| Listing electrical components required for B.60 engines. | 10th May 1940 | Box 168a \ 4 img170 | |
| Request to obtain electrical parts from Messrs. Lucas for Bentley 40 & 60 models. | 14th May 1940 | Box 168a \ 4 img171 | |
| Notes on servicing the dynamo at the 15,000-mile interval. | 15th May 1940 | Box 168a \ 4 img172 | |
| Instructions for the maintenance and testing of the starter motor. | 15th May 1940 | Box 168a \ 4 img173 | |
| Instructions for checking the MainSwitch and setting the distributor on a 6-cylinder engine. | 15th May 1940 | Box 168a \ 4 img174 | |
| Instructions for distributor lubrication, timing, and cleaning. | 15th May 1940 | Box 168a \ 4 img175 | |
| Maintenance instructions for the ignition coil, spark plugs, battery, lamps, and speedometer. | 15th May 1940 | Box 168a \ 4 img176 | |
| Instructions for troubleshooting instrument drive cables and inspecting other H.T. cables for damage. | 15th May 1940 | Box 168a \ 4 img177 | |
| List of part instructions for a Left Hand Silver Phantom chassis, noting a change to positive earth wiring. | 16th May 1940 | Box 168a \ 4 img178 | |
| List of Parts instructions for a Left Hand Silver Phantom chassis, noting a change to positive earth wiring. | 16th May 1940 | Box 168a \ 4 img179 | |
| Instructions for LOPs on an L.H. Silver Phantom chassis and a notification about a change to positive earth wiring. | 16th May 1940 | Box 168a \ 4 img180 | |
| Request for a job position summary from test section members due to the suspension of full-time testing. | 25th May 1942 | Box 168a \ 4 img181 | |
| Request for a drawing of a dynamo and starter motor for the small Myth engine. | 24th Jul 1940 | Box 168a \ 4 img182 | |
| Letter from Joseph Lucas Limited confirming receipt of an order for 'Roco' Cable Sleeving. | 7th Feb 1940 | Box 168a \ 4 img183 | |
| Letter from Joseph Lucas Limited regarding a supply issue with 'Roco' sleeving. | 24th Feb 1940 | Box 168a \ 4 img184 | |
| Order of parts from Messrs. Lucas. | 16th Jul 1940 | Box 168a \ 4 img185 | |
| Electrical equipment development, comparing three different dynamo models. | 22th Apr 1941 | Box 168a \ 4 img186 | |
| Performance analysis of a Lucas C45YV dynamo, detailing electrical load calculations for day and night driving. | 22th Apr 1941 | Box 168a \ 4 img187 | |
| Comparison of Dagonite and standard Bentley batteries, and a review of three starter motor models. | 22th Apr 1941 | Box 168a \ 4 img188 | |
| The Lucas M45G starter motor and associated starter main switches. | 22th Apr 1941 | Box 168a \ 4 img189 | |
| Modifications to the standard switch and a review of various distributors, including Delco-Remy and Lucas models. | 22th Apr 1941 | Box 168a \ 4 img190 | |
| Comparison and specification list of various automotive coils, with a detailed analysis of Lucas coil types. | 22th Apr 1941 | Box 168a \ 4 img191 | |
| Issues and solutions for speedometer drives, clocks, and trafficators. | 22th Apr 1941 | Box 168a \ 4 img192 | |
| Improvements and findings related to trafficators, general wiring, and H.T. cables. | 22th Apr 1941 | Box 168a \ 4 img193 | |
| Tests and decisions on the switch box, regulator, and ammeter for new cars. | 22th Apr 1941 | Box 168a \ 4 img194 | |
| Review and comparison of different dynamo models for electrical equipment development. | 22th Apr 1941 | Box 168a \ 4 img195 | |
| Analysis of dynamo performance and electrical load calculations for daylight and darkness conditions. | 22th Apr 1941 | Box 168a \ 4 img196 | |
| Report comparing specifications for different batteries and starter motors, focusing on weight, capacity, and dimensions. | 22th Apr 1941 | Box 168a \ 4 img197 | |
| The Lucas M45G motor rubber drive and an evaluation of various starter main switches. | 22th Apr 1941 | Box 168a \ 4 img198 | |
| Technical report on modifications to switches and a review of various distributor units. | 22th Apr 1941 | Box 168a \ 4 img199 | |
| Comparison of various ignition coils, including Delco and Lucas types, with a focus on reliability and design weaknesses. | 22th Apr 1941 | Box 168a \ 4 img200 | |
| Issues and solutions for speedometer drives, clocks, and trafficators. | 22th Apr 1941 | Box 168a \ 4 img201 | |
| Technical report discussing issues and solutions for trafficators, general wiring, and H.T. cables. | 22th Apr 1941 | Box 168a \ 4 img202 | |
| The testing and adoption of a Rover type switchbox, Lucas regulator, and Lucas ammeter. | 22th Apr 1941 | Box 168a \ 4 img203 | |
| Visit to Lucas to source electrical components for the Meteor and Myth projects. | 8th May 1941 | Box 168a \ 4 img204 | |
| Letter to Joseph Lucas Ltd. discussing post-war electrical equipment, specifically combined control and fuse boxes. | 15th Aug 1941 | Box 168a \ 4 img205 | |
| Modifications to the ignition system's ballast resistance for a 10,000-mile chassis test. | 8th Jun 1926 | Box 168a \ 5 img001 | |
| Request for an analysis of a sample Remy ballast resistance wire and a sample R.R. ballast resistance wire. | 14th Jun 1926 | Box 168a \ 5 img002 | |
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