| Description | Date | Identifier | |
| From Mr. Royce's office requesting a thermometer to test the 40/50 HP car's running temperature. | 29th Mar 1919 | Box 78 \ 1 scan0140 | |
| Recommendation to fit a water temperature recording instrument from the Cambridge Scientific Co. to the 40/50 chassis. | 31th Mar 1919 | Box 78 \ 1 scan0141 | |
| Development of an instrument board thermometer and associated radiator louvres to control water temperature. | 3rd Apr 1919 | Box 78 \ 1 scan0142 | |
| Circulating standardisation sheets for a wiring tube and a capillary tube thermometer for review and sign-off. | 7th Apr 1919 | Box 78 \ 1 scan0143 | |
| Standardisation of a capillary tube thermometer for recording radiator water temperature on the dashboard. | 7th Apr 1919 | Box 78 \ 1 scan0144 | |
| Recommendation to fit a thermometer to record the water temperature on 40/50 chassis. | 31th Mar 1919 | Box 78 \ 1 scan0145 | |
| Specification sheet detailing the weight of a capillary tube thermometer. | 7th Apr 1919 | Box 78 \ 1 scan0146 | |
| Requesting review and signature for a standardisation sheet on a capillary tube thermometer experiment. | 16th Apr 1919 | Box 78 \ 1 scan0147 | |
| Distributing copies of standardisation sheets for various parts, including items for the 40/50 Chassis. | 25th Apr 1919 | Box 78 \ 1 scan0148 | |
| Instructions from Mr. Royce regarding thermostats, thermometers, pressure feed pumps, and speedometers. | 1st May 1919 | Box 78 \ 1 scan0149 | |
| Different mechanisms for operating radiator louvres. | 13th May 1919 | Box 78 \ 1 scan0150 | |
| Design and operation of radiator shutters and thermostats, comparing different schemes. | 29th May 1919 | Box 78 \ 1 scan0151 | |
| Extract discussing the design and implementation of thermometer connections on an engine. | 14th May 1919 | Box 78 \ 1 scan0152 | |
| Arguing for the standardization of the capillary tube thermometer, detailing its benefits for the driver. | 28th May 1919 | Box 78 \ 1 scan0153 | |
| Radiator temperature control options for winter, considering blanking plates and alternative shutter designs. | 28th May 1919 | Box 78 \ 1 scan0154 | |
| Discussion of radiator cooling alternatives and a request for permission to fit thermometers. | 28th May 1919 | Box 78 \ 1 scan0155 | |
| Fitting of capillary tube thermometers and the design of radiator shutters for the 40/50 HP chassis. | 28th May 1919 | Box 78 \ 1 scan0156 | |
| Unsuitability of a roll-top desk blind for thermostat control and proposing a hand-operated shutter. | 28th May 1919 | Box 78 \ 1 scan0157 | |
| Control of water temperature on cars using radiator shutters and thermostat controls. | 29th May 1919 | Box 78 \ 1 scan0158 | |
| Ordering thermometer gauges from the Cambridge Scientific Instrument Co. | 30th May 1919 | Box 78 \ 1 scan0159 | |
| Mr. Royce's instructions for fitting a temperature indicator on a 40/50 HP chassis. | 30th May 1919 | Box 78 \ 1 scan0160 | |
| Design of radiator shutters and the standardisation of a capillary tube thermometer for the 40/50 HP chassis. | 30th May 1919 | Box 78 \ 1 scan0161 | |
| Standardization of Capillary Tube Thermometer X.3565, noting Mr. Johnson's agreement and ongoing discussion with Mr. Royce. | 31th May 1919 | Box 78 \ 1 scan0162 | |
| With a sketch describing the thermostat arrangement and operation on a Packard car. | 2nd Jun 1919 | Box 78 \ 1 scan0163 | |
| Technical necessity of fitting louvres to radiators for engine temperature control in cold weather. | 2nd Jun 1919 | Box 78 \ 1 scan0164 | |
| Methods for controlling radiator water temperature, including thermometers and physical radiator blockages. | 1st Jun 1919 | Box 78 \ 1 scan0165 | |
| Accompanying prints for the 40/50 chassis, detailing a view of the scuttle dash and ignition wire fittings. | 1st Jun 1919 | Box 78 \ 1 scan0166 | |
| Standardisation sheet for a capillary tube thermometer. | 6th Jun 1919 | Box 78 \ 1 scan0167 | |
| Cover memo for a standardisation sheet regarding a capillary tube thermometer. | 9th Jun 1919 | Box 78 \ 1 scan0168 | |
| Testing a radiator bypass pipe for the 40/50 chassis to manage water temperature. | 10th Jun 1919 | Box 78 \ 1 scan0169 | |
| Radiator temperature control modifications and experiences with a blind and thermometer. | 10th Jun 1919 | Box 78 \ 1 scan0170 | |
| Design and production of a new radiator thermometer. | 11th Jun 1919 | Box 78 \ 1 scan0171 | |
| Stopping work on a thermometer fitting for water jackets pending further information. | 12th Jun 1919 | Box 78 \ 1 scan0172 | |
| Design and placement of a temperature recorder for the 40/50 HP chassis. | 22th Jul 1919 | Box 78 \ 1 scan0173 | |
| Unsatisfactory positioning of a thermometer on the dashboard due to visibility and damage concerns. | 25th Jul 1919 | Box 78 \ 1 scan0174 | |
| Clarification of instructions for fitting the temperature indicator on the 40/50 HP chassis. | 29th Jul 1919 | Box 78 \ 1 scan0175 | |
| Urgent increase in parts production for the 40/50 chassis. | 30th Jul 1919 | Box 78 \ 1 scan0176 | |
| Confirmation of handing over blueprints for a Rosette part for a 40/50 chassis water temperature thermometer. | 1st Aug 1919 | Box 78 \ 1 scan0177 | |
| Required length of the capillary tube for the temperature indicator on a 40/50 chassis. | 1st Aug 1919 | Box 78 \ 1 scan0178 | |
| Blueprints for production changes to the temperature indicator fittings on the 40/50 chassis. | 1st Aug 1919 | Box 78 \ 1 scan0179 | |
| Enclosing two blueprints for the arrangement of temperature indicator fittings for the 40/50 chassis. | 14th Aug 1919 | Box 78 \ 1 scan0180 | |
| Arrangement and standardization of the temperature indicator and other dashboard instruments. | 21th Aug 1919 | Box 78 \ 1 scan0181 | |
| Layout of dashboard components and securing of electrical conductors. | 21th Aug 1919 | Box 78 \ 1 scan0182 | |
| Extract detailing new parts fitted to the 40/50 chassis, specifically the standardisation of a thermometer. | 27th Aug 1919 | Box 78 \ 1 scan0183 | |
| Notice about the standardized method of fixing a thermometer to LeC.1121. | 7th Oct 1919 | Box 78 \ 1 scan0184 | |
| Accompanying blueprints for 40/50 chassis water thermometer connection parts for the 10,000-mile car. | 10th Oct 1919 | Box 78 \ 1 scan0185 | |
| Status report on finished experimental work and modifications. | 10th Oct 1919 | Box 78 \ 1 scan0186 | |
| Failure of a thermometer tube due to improper handling and suggesting design modifications to prevent it. | 26th Apr 1917 | Box 78 \ 1 scan0187 | |
| Failure of thermometer fixings in the engine top water pipe and seeking solutions. | 18th Nov 1919 | Box 78 \ 1 scan0188 | |
| Modifications and issues for Car 1.EX, including the clutch, wiring, and thermometer fitting. | 8th Dec 1919 | Box 78 \ 1 scan0189 | |
| Clarifying that an issue with a Thermometer mounting on car 1.EX is due to using an old dashboard, not a design error. | 1st Dec 1919 | Box 78 \ 1 scan0190 | |
| Thermostats and crankchamber breather fumes on the 40/50 HP chassis. | 4th Feb 1920 | Box 78 \ 1 scan0191 | |
| Failure of thermometers on the 40/50 HP chassis, with vibration suspected as the cause. | 26th Feb 1920 | Box 78 \ 1 scan0192 | |
| American chassis parts, specifically a review and recommendation for the Foxboro' Thermometer. | 16th Mar 1920 | Box 78 \ 1 scan0193 | |
| Continued note on fitting and testing a thermostat control scheme. | 16th Mar 1920 | Box 78 \ 1 scan0194 | |
| Alternative quotation for fitting thermometers on pre-war chassis for customers. | 1st Mar 1920 | Box 78 \ 1 scan0195 | |
| Requesting a reply regarding the fitting of thermometers to a customer's Pre-War chassis. | 9th Apr 1920 | Box 78 \ 1 scan0196 | |
| Customer modifications to the up-takes water pipe to suit a thermometer. | 9th Apr 1920 | Box 78 \ 1 scan0197 | |
| Modification to the thermometer connection on the water uptake in a cylinder. | 1st Jun 1920 | Box 78 \ 1 scan0198 | |
| Notes on the redesign and positioning of the instrument board for chassis 6.EX. | 17th Jul 1920 | Box 78 \ 1 scan0199 | |
| The supply of thermometers and thermostats for the chassis, discussing cancellations and potential scrapping. | 23th Jul 1920 | Box 78 \ 1 scan0200 | |
| The cancellation of thermometer fittings following the decision to make the thermostat standard. | 4th Aug 1920 | Box 78 \ 1 scan0201 | |
| Confirming that when thermostats are fitted, thermometers are not to be a standard fitting to avoid extra complication. | 9th Sep 1920 | Box 78 \ 1 scan0202 | |
| Confirmation of a telegram instructing that thermometers are not to be a standard fitting when thermostats are fitted. | 3rd Sep 1920 | Box 78 \ 1 scan0203 | |
| Confirming no action is required regarding the removal of the thermometer when the thermostat is standardized. | 6th Sep 1920 | Box 78 \ 1 scan0204 | |
| The provision for fitting thermometers to thermostat engines. | 21th Sep 1920 | Box 78 \ 1 scan0205 | |
| The issues and recommendations regarding fitting thermometers to engines that are also fitted with thermostats. | 22th Sep 1920 | Box 78 \ 1 scan0206 | |
| Failures of thermometers fitted to the chassis instrument board. | 10th Feb 1921 | Box 78 \ 1 scan0207 | |
| Engine overheating, detonation warnings, and cooling system performance in 40/50 and Goshawk models. | 30th May 1922 | Box 78 \ 1 scan0208 | |
| Letter from S.H. Morden & Co Ltd proposing their Radiator Temperature Indicator. | 20th Jul 1922 | Box 78 \ 1 scan0209 | |
| Letter from S. H. Morden & Co Ltd proposing an instrument for indicating water temperature in radiators. | 27th Jul 1922 | Box 78 \ 1 scan0210 | |
| Advertising leaflet for a 'Thermomomanometre' radiator temperature indicator. | 27th Jul 1922 | Box 78 \ 1 scan0211 | |
| Leaflet explaining ten reasons to install a radiator temperature indicator. | 10th Aug 1923 | Box 78 \ 1 scan0212 | |
| Thermometer tubes, forwarding an attached copy from Springfield. | 10th Aug 1923 | Box 78 \ 1 scan0213 | |
| Proposal for a new shield for thermometer tubes to replace the existing, problematic split shield. | 31th Jul 1923 | Box 78 \ 1 scan0214 | |
| Covering memo regarding an attached document about thermometer tubes received from Springfield. | 10th Aug 1923 | Box 78 \ 1 scan0215 | |
| Letter regarding a proposed new shield for a thermometer tube to replace the existing split shield. | 31th Jul 1925 | Box 78 \ 1 scan0216 | |
| Blueprint for a shield for a thermometer tube for the 40/50 model. | 20th Jul 1923 | Box 78 \ 1 scan0217 | |
| The supplier, catalogue number, and price for a thermometer that reads to 1/5th degrees centigrade. | 28th Aug 1923 | Box 78 \ 1 scan0218 | |
| Internal order request for a centigrade thermometer and two wooden cases. | 1st Aug 1923 | Box 78 \ 1 scan0219 | |
| Request to obtain a thermometer from W. & J. George Ltd., confirming the need for an additional unit. | 9th Sep 1923 | Box 78 \ 1 scan0220 | |
| Querying a potential duplicate order for a thermometer from W. & J. George Ltd. | 5th Sep 1923 | Box 78 \ 1 scan0221 | |
| Standardisation of the Thermometer Tube Shield. | 4th Oct 1923 | Box 78 \ 1 scan0222 | |
| Laboratory comparison of readings from a Mercury Thermometer and an Ether Thermometer for a Smith and Yates radiator thermometer. | 20th Mar 1925 | Box 78 \ 1 scan0223 | |
| Secret memo detailing five proposed modifications to a thermometer and its related wiring for an EAC scheme. | 20th Mar 1925 | Box 78 \ 1 scan0224 | |
| Follow-up memo requesting an update on a Negretti & Zambra Radiator Thermometer under observation. | 11th May 1925 | Box 78 \ 1 scan0225 | |
| Requesting to find a missing Negretti & Zambra dashboard thermometer for examination. | 9th May 1925 | Box 78 \ 1 scan0226 | |
| Damaged Negretti & Zambra thermometer after a car accident in France. | 20th May 1925 | Box 78 \ 1 scan0227 | |
| Requesting the examination of two sample Radiator Thermometers from The Accurate Recording Instrument Company. | 20th Aug 1927 | Box 78 \ 1 scan0228 | |
| Brochure for A.R.I.C. radiator thermometers and other instruments for aircraft and motor dashboards. | 20th Aug 1927 | Box 78 \ 1 scan0229 | |
| Promotional leaflet for the A.R.I.C. distance reading dashboard fitting radiator thermometer. | 1st Aug 1927 | Box 78 \ 1 scan0230 | |
| Request to test two distance thermometers for accuracy and their ability to withstand boiling temperatures. | 1st Aug 1927 | Box 78 \ 1 scan0231 | |
| Laboratory report on the calibration of two A.R.I.C. distance thermometers. | 23th Aug 1927 | Box 78 \ 1 scan0232 | |
| The calibration and testing of A.R.I.C. thermometers, noting their inaccuracy. | 23th Aug 1927 | Box 78 \ 1 scan0233 | |
| The calibration of two A.R.I.C. distance thermometers. | 23th Aug 1927 | Box 78 \ 1 scan0234 | |
| Internal order request for measuring cylinders and thermometers from W. & J. George Ltd. | 29th Aug 1927 | Box 78 \ 1 scan0235 | |
| Different mechanical methods for operating external radiator louvres. | 13th May 1919 | Box 78 \ 1 scan0236 | |
| Thermostat arrangement of a Packard car, including operating temperatures and a sketch of the tube. | 1st Jun 1919 | Box 78 \ 1 scan0237 | |
| Use of standard larger size sylphons over new smaller diameter ones. | 30th Jun 1919 | Box 78 \ 1 scan0238 | |
| Enquiry with a sketch about the production of sylphon tubing for a 40/50 HP chassis. | 18th Sep 1919 | Box 78 \ 1 scan0239 | |
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