| Description | Date | Identifier | |
| Accessory specifications for Barker Enclosed Limousine (21-EX) and Hooper Enclosed Landaulet (22-EX). | 18th Dec 1928 | Box 15 \ 7 Scan094 | |
| Feedback and design modifications for a framed instrument patch to make it a standard fitting. | 18th Dec 1928 | Box 15 \ 7 Scan095 | |
| Instruction to change the instrument dial colour scheme for an S.S. chassis experimental set. | 8th Feb 1929 | Box 15 \ 7 Scan096 | |
| Instrument board for the S.S. chassis, discussing supply schemes, costs, and dial finishes. | 8th Feb 1929 | Box 15 \ 7 Scan097 | |
| Instruction to order an alternative set of instruments with black finished dials for the 'SS' Chassis. | 11th Feb 1929 | Box 15 \ 7 Scan098 | |
| Design and standardization of the framed instrument patch, including gauges, lighting, and finishes. | 11th Feb 1929 | Box 15 \ 7 Scan099 | |
| The instrument panel, accessories, and headlamps for a 19-EX Hooper Sedanea. | 18th Dec 1928 | Box 15 \ 7 Scan100 | |
| Design and production of a framed instrument panel, including gauges and dial styles. | 1st Feb 1929 | Box 15 \ 7 Scan101 | |
| Design and supply of parts for an 'SS' instrument board. | 2nd Feb 1929 | Box 15 \ 7 Scan102 | |
| Revisions to framed instruments, including the K.S. gauge, lamp, and shutter controls. | 2nd Feb 1929 | Box 15 \ 7 Scan103 | |
| Instrument panel layout, a proposed book for coachbuilders, and vehicle design considerations like weight distribution. | 3rd Feb 1929 | Box 15 \ 7 Scan104 | |
| The decision to introduce grouped instruments on the SS and 20 HP models. | 3rd May 1929 | Box 15 \ 7 Scan105 | |
| Production of instrument boards, dial colors, and the use of reflectors. | 12th Mar 1929 | Box 15 \ 7 Scan106 | |
| Introduction of grouped instruments on the 20 HP chassis. | 18th Mar 1929 | Box 15 \ 7 Scan107 | |
| Availability and modification of lamps and instrument panels for cars 23-EX and 16-G4. | 5th May 1929 | Box 15 \ 7 Scan108 | |
| Continued discussion on improving shutter controls, proposing thermostatically controlled shutters. | 1st May 1929 | Box 15 \ 7 Scan109 | |
| Preparation and supply of framed patch instruments for Phantom 23-EX and 20 HP models. | 1st May 1929 | Box 15 \ 7 Scan110 | |
| Modification required for a speedometer and clock casing. | 8th May 1929 | Box 15 \ 7 Scan111 | |
| Issuing detail drawings for revised framed patch instruments and the incompatibility of older sets. | 8th May 1929 | Box 15 \ 7 Scan112 | |
| Request to manufacture two sets of aluminium back plates with lugs for adapting instruments to an improved patch board. | 1st May 1929 | Box 15 \ 7 Scan113 | |
| Secret memo discussing surplus lamps, instrument panel modifications, dials, and radiator shutter controls for specific vehicle chassis. | 8th May 1929 | Box 15 \ 7 Scan114 | |
| Proposing to modify instrument cases by fitting lugs in a new position to use up existing stock. | 9th May 1929 | Box 15 \ 7 Scan115 | |
| Production and ordering of instruments for scheme N.SCH. 2836. | 9th May 1929 | Box 15 \ 7 Scan116 | |
| Decision between black or cream faces for dashboard instruments. | 1st May 1929 | Box 15 \ 7 Scan117 | |
| Request for drawings or models for components to complete the instrument board print for 'S.S.' | 27th May 1929 | Box 15 \ 7 Scan118 | |
| Letter from Peto & Radford suggesting the incorporation of the red warning light into another instrument like the thermometer or main switch to simplify fitting. | 27th May 1929 | Box 15 \ 7 Scan119 | |
| Letter discussing the experimental placement of a red lamp on the instrument board. | 28th May 1929 | Box 15 \ 7 Scan120 | |
| Design modification for the grouped instrument board assembly to prevent dirt ingress. | 16th Nov 1929 | Box 15 \ 7 Scan121 | |
| Technical drawing for an A.T. Speedometer with a trip meter, showing various finish options. | 16th Dec 1929 | Box 15 \ 7 Scan122 | |
| Stamped by the Print Room. | 15th Nov 1929 | Box 15 \ 7 Scan123 | |
| Blueprint of a plate with multiple circular cutouts and various mounting holes. | 2nd Nov 1929 | Box 15 \ 7 Scan124 | |
| Report on Elliott ammeters and the grouped instrument board assembly procedure. | 2nd Nov 1929 | Box 15 \ 7 Scan125 | |
| Problems with Elliott ammeters due to dust during instrument board assembly and proposing a dust-proof room. | 8th Nov 1929 | Box 15 \ 7 Scan126 | |
| Strategy for rectifying faulty instruments and engaging with the manufacturers. | 11th Nov 1929 | Box 15 \ 7 Scan127 | |
| New procedures for handling patch type instruments for Phantom II & 20-HP models to prevent contamination. | 11th Nov 1929 | Box 15 \ 7 Scan128 | |
| Issues with instrument board assemblies, including dust contamination and packaging problems causing damage. | 13th Nov 1929 | Box 15 \ 7 Scan129 | |
| Design and illumination of a framed instrument panel for the P.2 model, including the use of green bulbs. | 11th Feb 1930 | Box 15 \ 7 Scan130 | |
| Omission of the petrol gauge from the instrument patch due to ongoing development and testing. | 13th Feb 1930 | Box 15 \ 7 Scan131 | |
| Complaints from the Test Dept. regarding the visibility of the white aluminium casting of the instrument group and a proposed solution. | 4th Mar 1930 | Box 15 \ 7 Scan132 | |
| Request to produce a new group of instruments for a 40-50 HP chassis instrument board, specifying a solid glass panel to prevent cracking. | 11th Apr 1930 | Box 15 \ 7 Scan133 | |
| Sourcing and specifications of instruments for the L.H. S.S. instrument board. | 10th May 1930 | Box 15 \ 7 Scan134 | |
| Supply and fitting of instruments for a chassis, detailing sourcing arrangements and installation methods. | 10th May 1930 | Box 15 \ 7 Scan135 | |
| Instrument panel lighting and the sourcing of instruments for specific car models. | 10th May 1930 | Box 15 \ 7 Scan136 | |
| Selection and arrangement of instruments for the P.2. L.H. instrument board. | 14th May 1930 | Box 15 \ 7 Scan137 | |
| Specification document for the P.2. L.H. instrument board, focusing on modifications for the American market. | 14th May 1930 | Box 15 \ 7 Scan138 | |
| Fitting American instruments (a clock and speedometer) into an experimental car's instrument board. | 14th May 1930 | Box 15 \ 7 Scan139 | |
| The small petrol reserve supply and the importance of not allowing the fuel system to run dry. | 16th May 1930 | Box 15 \ 7 Scan140 | |
| Issues with Park Royal ammeters due to foreign matter entering the movement and suggesting preventative measures. | 9th May 1930 | Box 15 \ 7 Scan141 | |
| Dust ingress during the assembly and use of Park Royal ammeters and patch instrument boards. | 14th May 1930 | Box 15 \ 7 Scan142 | |
| Secret memo discussing various layout schemes for the instrument board for the 25EX model. | 21th May 1930 | Box 15 \ 7 Scan143 | |
| Breakages of instrument board patch glass and proposing a design change. | 23th May 1930 | Box 15 \ 7 Scan144 | |
| Cracked instrument board patch glass on chassis 116-GN. | 19th May 1930 | Box 15 \ 7 Scan145 | |
| Complaints from the final test team regarding the awkward fitting of the K.S. petrol gauge. | 8th Jun 1930 | Box 15 \ 7 Scan146 | |
| The results of testing Phantom II gearboxes with Whitmore's Compound and plans for further tests with Price's Compound. | 11th Jun 1930 | Box 15 \ 7 Scan147 | |
| Follow-up request for the L.H. S.S. instrument board drawing to allow for pre-fitting as the body is a month overdue. | 14th Jun 1930 | Box 15 \ 7 Scan148 | |
| Five improvements for the petrol gauge. | 16th Jun 1930 | Box 15 \ 7 Scan149 | |
| List of suggestions and experimental data for improving a tank and gauge system. | 16th Jun 1930 | Box 15 \ 7 Scan150 | |
| Alternative designs for a tank and its associated fittings. | 16th Jun 1930 | Box 15 \ 7 Scan151 | |
| Issues with cracked glass on the framed instrument patch and a proposal for a revised design. | 18th Jun 1930 | Box 15 \ 7 Scan152 | |
| Excessive charge for replacing glass in a framed instrument patch. | 20th Jun 1930 | Box 15 \ 7 Scan153 | |
| The causes of petrol gauge failures and the subsequent modifications made to resolve them. | 24th Jun 1930 | Box 15 \ 7 Scan154 | |
| The development and issues with petrol gauges, comparing Hobson and Nivex models. | 24th Jun 1930 | Box 15 \ 7 Scan155 | |
| The advantages and installation procedure of the 'Nivex' petrol gauge. | 24th Jun 1930 | Box 15 \ 7 Scan156 | |
| Concluding page of a typed document comparing something to its equivalent in the United States. | 1st Jul 1930 | Box 15 \ 7 Scan157 | |
| Design and installation of petrol gauges and other instruments on the instrument board. | 1st Jul 1930 | Box 15 \ 7 Scan158 | |
| Instrument board design for a 2nd L.H. Chassis (25-EX) to meet USA requirements. | 1st Jul 1930 | Box 15 \ 7 Scan159 | |
| Standardisation of chassis parts, specifically the instrument board with plain glass. | 5th Jun 1930 | Box 15 \ 7 Scan160 | |
| Design and standardisation of a 2nd Left Hand drive Phantom II for the American market. | 21th Jul 1930 | Box 15 \ 7 Scan161 | |
| The standardisation of the instrument board for the second left-hand chassis for America. | 18th Jul 1930 | Box 15 \ 7 Scan162 | |
| Holding material for the Instrument Board on the 'N2' Series left-hand drive chassis for America. | 21th Jul 1930 | Box 15 \ 7 Scan163 | |
| Standardisation of parts, including the bonnet and instrument board, for a P.2 chassis destined for America. | 22th Jul 1930 | Box 15 \ 7 Scan164 | |
| Sending a blueprint showing the layout and piece numbers for the 40-50 HP chassis 'N2' series instrument board. | 28th Aug 1930 | Box 15 \ 7 Scan165 | |
| Alternative arrangements for the N. 2 Series instrument board. | 10th Oct 1930 | Box 15 \ 7 Scan166 | |
| Modifications to the instrument board layout for the N.2 series chassis to clear the 'C' type steering column. | 23th Oct 1930 | Box 15 \ 7 Scan167 | |
| Instrument board layout and dimensions for 'C' and 'D' type cars. | 27th Oct 1930 | Box 15 \ 7 Scan168 | |
| Standardisation of an instrument board lay-out. | 21th Jul 1930 | Box 15 \ 7 Scan169 | |
| Special instruments with silvered dials for Phantom II L.H. N-2 Series cars, and sourcing a matching petrol gauge. | 20th Jan 1931 | Box 15 \ 7 Scan170 | |
| Proposing a scheme to use plain glass with stuck-on reflectors to address complaints of cracked glasses in patch instruments. | 4th Feb 1931 | Box 15 \ 7 Scan171 | |
| Querying a 'For Repairs Only' note on a standardisation sheet for fitting plain glass on Phantom instrument boards. | 4th Apr 1931 | Box 15 \ 7 Scan172 | |
| Preference for silver instrument dials over black for the American market. | 19th Jan 1931 | Box 15 \ 7 Scan173 | |
| On the standardisation of glass for patch instrument boards, detailing issues with drilled glass and proposing alternatives. | 16th Apr 1931 | Box 15 \ 7 Scan174 | |
| Standardisation of plain glass in patch instruments with stuck-on reflectors to prevent cracking. | 5th Feb 1931 | Box 15 \ 7 Scan175 | |
| Intimation of chassis parts available for repairs only, with a log of entries. | 18th May 1937 | Box 15 \ 7 Scan176 | |
| Letter to S. Smith & Sons Ltd. requesting proposals for instrument boards for the 20/25 and 40/50 HP chassis. | 14th Oct 1931 | Box 15 \ 7 Scan177 | |
| Poor instrument visibility on the upper dashboard and suggesting pivoting needles at the top. | 14th Oct 1931 | Box 15 \ 7 Scan178 | |
| Letter from S. Smith & Sons regarding a meeting to discuss instrument boards at the Motor Exhibition. | 15th Oct 1931 | Box 15 \ 7 Scan179 | |
| Letter to Messrs. S. Smith & Sons, Ltd. arranging a meeting regarding instrument boards. | 16th Oct 1931 | Box 15 \ 7 Scan180 | |
| Letter to S. Smith & Sons Ltd regarding a 40/50 chassis instrument board arrangement print. | 21th Oct 1931 | Box 15 \ 7 Scan181 | |
| Letter from S. Smith & Sons acknowledging receipt of a blueprint for a 40/50 chassis instrument board. | 22th Oct 1931 | Box 15 \ 7 Scan182 | |
| Supply of a complete instrument board for the 20/25 HP chassis. | 23th Oct 1931 | Box 15 \ 7 Scan183 | |
| Introducing the 20/25 HP instrument patch to the 40/50 HP chassis and improving instrument lighting. | 7th Dec 1932 | Box 15 \ 7 Scan184 | |
| Introduction of a Smith electric petrol gauge and instrument patch for the 40/50 HP O.2 series chassis. | 29th Dec 1932 | Box 15 \ 7 Scan185 | |
| Design and manufacturing of an instrument board panel for RR and Bentley cars. | 18th Feb 1933 | Box 15 \ 7 Scan186 | |
| Design review document discussing the outer frame, switch components, switchbox layout, and lighting. | 18th Feb 1933 | Box 15 \ 7 Scan187 | |
| Request to Smith & Sons for a model of a combined speedometer and tachometer with glass edge illumination. | 29th Dec 1932 | Box 15 \ 7 Scan188 | |
| Instruction to order an additional 50 sets of instruments for the 40/50 HP O.2. series chassis instrument patch. | 29th Dec 1932 | Box 15 \ 7 Scan189 | |
| The proposed modifications for the vibrator control and electrical system on a Phantom II chassis, 27-EX. | 25th Jul 1933 | Box 15 \ 7 Scan190 | |
| Changes to the ignition warning light, instrument board arrangement, and a parts list for the vibrator control installation. | 26th Jul 1933 | Box 15 \ 7 Scan191 | |
| Pencil drawing of the 40/50 Instrument Board layout. | 26th Jul 1933 | Box 15 \ 7 Scan192 | |
| Equalization of oil in the crank chamber of engine No. 6. | 26th Feb 1909 | Box 16 \ 1 Scan001 | |
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