| Description | Date | Identifier | |
| Secret memo discussing modifications to the hand throttle controls for the Left Hand Silver Phantom. | 26th Apr 1940 | Box 124 \ 4 scan0158 | |
| Continuation page of a memo regarding a rod, with a note about enclosed copies and prints. | 29th Apr 1940 | Box 124 \ 4 scan0159 | |
| Chasing overdue specifications for the Silver Phantom L.H. chassis. | 29th Apr 1940 | Box 124 \ 4 scan0160 | |
| The dispatch of blueprints for L.H. Silver Phantom index sheets. | 1st May 1940 | Box 124 \ 4 scan0161 | |
| Instructions and blueprints for an L.H.S. Phantom front axle yoke and cross steering assembly. | 1st May 1940 | Box 124 \ 4 scan0162 | |
| Instruction to cease work on front engine mounting brackets for the LH Silver Phantom chassis due to a design modification. | 4th May 1940 | Box 124 \ 4 scan0163 | |
| Requesting to stop work on front engine mounting brackets for the LH. Silver Phantom chassis due to a new design. | 4th May 1940 | Box 124 \ 4 scan0164 | |
| Requesting information on a L.H. Phantom Radiator to prevent delays for the coachbuilders. | 6th May 1940 | Box 124 \ 4 scan0165 | |
| Short typed memo regarding the status of a radiator and its mounting. | 6th May 1940 | Box 124 \ 4 scan0166 | |
| Chasing delayed specifications for the Silver Phantom L.H. car. | 6th May 1940 | Box 124 \ 4 scan0167 | |
| Instructions regarding the petrol tank and filler for the Left Hand Silver Phantom. | 7th May 1940 | Box 124 \ 4 scan0168 | |
| Modifications to the L.H. Silver Phantom frame and fittings, listing associated blueprints. | 8th May 1940 | Box 124 \ 4 scan0169 | |
| Instructions regarding the use of an existing Silver Wraith frame for a chassis, noting drawings show modified holes. | 8th May 1940 | Box 124 \ 4 scan0170 | |
| Parts list and instruction memo for a revised steering box mounting on a Left Hand Silver Phantom. | 8th May 1940 | Box 124 \ 4 scan0171 | |
| Providing a progress update on the production of a Silver Phantom Left Hand model, noting delays due to outstanding designs. | 8th May 1940 | Box 124 \ 4 scan0172 | |
| Parts required for the Left Hand Silver Phantom steering column and box. | 8th May 1940 | Box 124 \ 4 scan0173 | |
| Notification regarding part replacements and blueprint distribution for the Silver Phantom model. | 11th May 1940 | Box 124 \ 4 scan0174 | |
| Modification of Fulcrum Pin Housing PW.1836. | 11th May 1940 | Box 124 \ 4 scan0175 | |
| Blueprints for the LH Silver Phantom frame and fittings. | 11th May 1940 | Box 124 \ 4 scan0176 | |
| Blueprints for the LH Silver Phantom frame and fittings, and a request for further information. | 11th May 1930 | Box 124 \ 4 scan0177 | |
| Dispatching blueprints for Silver Phantom steering, crankcase, and bearing components, with instructions to update records. | 11th May 1940 | Box 124 \ 4 scan0178 | |
| Modification of a Fulcrum Pin Housing casting, with reference to attached blueprints. | 13th May 1940 | Box 124 \ 4 scan0179 | |
| Specification of new features to be incorporated on the L.H. Silver Phantom model. | 13th May 1940 | Box 124 \ 4 scan0180 | |
| Design notes regarding brake servo modifications, a new petrol tank, and chassis production features. | 13th May 1940 | Box 124 \ 4 scan0181 | |
| Specification of new features for the L.H. Silver Phantom model. | 13th May 1940 | Box 124 \ 4 scan0182 | |
| Chassis modifications, including the brake system and a new petrol tank design. | 13th May 1940 | Box 124 \ 4 scan0183 | |
| Secret memo detailing outstanding design work required for the Left Hand Silver Phantom 31.G.VII chassis. | 14th May 1940 | Box 124 \ 4 scan0184 | |
| Continued list of modifications for various vehicle components and their status. | 14th May 1940 | Box 124 \ 4 scan0185 | |
| Conference to finalise the left-hand car specification and discuss the Nippletto specification. | 14th May 1940 | Box 124 \ 4 scan0186 | |
| Secret memo detailing the status of outstanding design work on the Left Hand Silver Phantom chassis 31.G.VII. | 14th May 1940 | Box 124 \ 4 scan0187 | |
| Continued list of modifications regarding a gas-tight seal, petrol tank, bumpers, and radiator mounting. | 14th May 1940 | Box 124 \ 4 scan0188 | |
| Recommendation to use the petrol filler cap from model 8.B.V. | 14th May 1940 | Box 124 \ 4 scan0189 | |
| Blueprints for the LH Silver Phantom frame and chassis, with instructions to hold up on engine mounting brackets. | 14th May 1940 | Box 124 \ 4 scan0190 | |
| Blueprints for a simplified starting handle bearing support bracket and front apron for the L.H. Silver Phantom. | 14th May 1940 | Box 124 \ 4 scan0191 | |
| Modifications for the positive earth to battery on a L.H. Silver Phantom 31.G.VII. | 14th May 1940 | Box 124 \ 4 scan0192 | |
| Instructions for LOP's (List of Parts/Operations) related to the Dynamo, Bearings, and Ignition for the L.H. Silver Phantom chassis. | 16th May 1940 | Box 124 \ 4 scan0193 | |
| Parts and wiring instructions for a Left Hand Silver Phantom chassis. | 16th May 1940 | Box 124 \ 4 scan0194 | |
| Listing parts and instructions for the Left Hand Silver Phantom chassis. | 16th May 1940 | Box 124 \ 4 scan0195 | |
| Blueprints for frame side member drilling on a Left Hand Silver Phantom chassis. | 16th May 1940 | Box 124 \ 4 scan0196 | |
| Notification of a new radiator part for the L.H. Silver Phantom, replacing part EW.1943. | 17th May 1940 | Box 124 \ 4 scan0197 | |
| Alteration to drawing RF1024 for a left-hand front gusset stay on a L.H. Silver Phantom. | 20th May 1940 | Box 124 \ 4 scan0198 | |
| Alteration note for a drawing modification of a left-hand front gusset stay for a Silver Phantom. | 20th May 1940 | Box 124 \ 4 scan0199 | |
| Alteration to the 2nd 'X' member assembly on the L.H. Silver Phantom frame. | 20th May 1940 | Box 124 \ 4 scan0200 | |
| Minutes of a conference discussing the status of detail drawings for the Left-Hand Silver Phantom. | 20th May 1940 | Box 124 \ 4 scan0201 | |
| Progress report and notes on various vehicle components and assemblies. | 20th May 1940 | Box 124 \ 4 scan0202 | |
| Minutes of a conference concerning the Left-Hand Silver Phantom and the position of its detail drawings. | 20th May 1940 | Box 124 \ 4 scan0203 | |
| Progress report detailing updates on various car components and assemblies. | 20th May 1940 | Box 124 \ 4 scan0204 | |
| Parts list and instructions for the L.H. Silver Phantom petrol tank, pipes, and fittings. | 23th May 1940 | Box 124 \ 4 scan0205 | |
| Distributing specifications for the experimental Left Hand Silver Phantom model 31.G.VII. | 26th Jun 1940 | Box 124 \ 4 scan0206 | |
| Distributing copies of the specification for the Left Hand Silver Phantom Development Model. | 26th Jun 1940 | Box 124 \ 4 scan0207 | |
| Confirming the sending of a theoretical wiring diagram for the L H Silver Phantom. | 27th Jun 1940 | Box 124 \ 4 scan0208 | |
| Modifications to the hand throttle, steering column, and dashboard for column gear change on L.H. Senior Range vehicles. | 9th Jul 1940 | Box 124 \ 4 scan0209 | |
| Clarifying the suitability of part L.O.P. - RP.1044 for chassis with different gear change types. | 9th Jul 1940 | Box 124 \ 4 scan0210 | |
| Instruction memo listing parts for Left Hand Silver Phantom floorboards and fittings. | 15th Jul 1940 | Box 124 \ 4 scan0211 | |
| Telegraph from Royce requesting valve caps for a Bugatti to be sent by express post. | 16th Jul 1910 | Box 124 \ 4 scan0212 | |
| Outstanding experiment for Mr. Platford concerning a carburetter for a Bugatti car engine. | 8th Aug 1916 | Box 124 \ 4 scan0213 | |
| Testing and issues with a Claudel carburetter on a Bugatti engine. | 31th Jul 1916 | Box 124 \ 4 scan0214 | |
| 20mm Claudel Hobson carburetter for a Bugatti car engine. | 20th Sep 1916 | Box 124 \ 4 scan0215 | |
| Copy of a wire from Mr. Royce discussing various engine component issues, supplies, and tests. | 7th Jul 1916 | Box 124 \ 4 scan0216 | |
| Telegram requesting information to compare Zenith and Claudel carburetors for a Bugatti car. | 23th Jul 1916 | Box 124 \ 4 scan0217 | |
| Telegram about the performance and condition of a 'clandel' part received for a Bugatti. | 25th Jul 1916 | Box 124 \ 4 scan0218 | |
| Delay to an experiment due to waiting for a 20 m/m carburetter from Claudel-Hobson's. | 9th Aug 1916 | Box 124 \ 4 scan0219 | |
| The 'Z' Type and Claudel-Hobson carburetters for Mr. Royce's Bugatti car. | 26th Jul 1916 | Box 124 \ 4 scan0220 | |
| Copy of a wire from Mr. Royce regarding a choice between Zenith and Claudel carburetors. | 26th Jul 1916 | Box 124 \ 4 scan0221 | |
| Request for particulars on an unsupercharged Bugatti entered for the Ulster R.T. race. | 4th Jun 1935 | Box 124 \ 4 scan0222 | |
| Letter to Mr Hives regarding the fitting of a Claudel-Hobson carburetter onto a Bugatti. | 4th Jul 1916 | Box 124 \ 4 scan0223 | |
| Potential purchase of an Alfa Romeo car for evaluation. | 12th Nov 1928 | Box 124 \ 5 scan0001 | |
| The performance and characteristics of a 1½ Litre Alfa-Romeo car. | 13th Nov 1928 | Box 124 \ 5 scan0002 | |
| Performance characteristics of an engine, focusing on smoothness, vibration periods, and power output. | 13th Nov 1928 | Box 124 \ 5 scan0003 | |
| Vehicle performance evaluation report, detailing positive and negative features and comparing it to other cars. | 13th Nov 1928 | Box 124 \ 5 scan0004 | |
| Customer's feedback comparing a 20 HP car with a supercharged Alfa Romeo, discussing performance, price, and cooling. | 13th Nov 1928 | Box 124 \ 5 scan0005 | |
| Side-profile photograph of an Alfa Romeo 17/85 Special Sports Coupe. | 13th Nov 1928 | Box 124 \ 5 scan0006 | |
| Of an address. | 13th Nov 1928 | Box 124 \ 5 scan0007 | |
| Price list for various models of Alfa Romeo 2 Litre 6 cylinder cars. | 1st Nov 1929 | Box 124 \ 5 scan0008 | |
| Test report on a 2 litre unsupercharged Alfa Romeo car following the Olympia 1929 show. | 1st Nov 1929 | Box 124 \ 5 scan0009 | |
| Engine performance, capacity, and luxury body requirements for the 20 HP model. | 1st Nov 1929 | Box 124 \ 5 scan0010 | |
| From 'R' expressing frustration at slow development progress and arguing against purchasing an Alpha Romeo. | 8th Nov 1929 | Box 124 \ 5 scan0011 | |
| Report from the 1930 Motor Show detailing specifications for Alfa Romeo and Aston-Martin vehicles. | 6th Nov 1930 | Box 124 \ 5 scan0012 | |
| General notes on magnetos and frames, with a detailed analysis of electric and hydraulic petrol pumps. | 6th Nov 1930 | Box 124 \ 5 scan0013 | |
| Cutaway diagram illustrating the components of the S.U. Co.'s Kent fuel pump. | 6th Nov 1930 | Box 124 \ 5 scan0014 | |
| Cutaway diagram and operational description of the S.U. Hydraulic Fuel Pump. | 31th Dec 1931 | Box 124 \ 5 scan0015 | |
| From Sg. to Hs. regarding the plan to purchase and quickly resell an Alfa Romeo. | 31th Dec 1931 | Box 124 \ 5 scan0016 | |
| Purchase of an Alfa Romeo and the potential development of a new sports car model. | 4th Dec 1931 | Box 124 \ 5 scan0017 | |
| Providing feedback on an Alfa Romeo test run and comparing its design and features to Lagonda and Invicta models. | 14th Dec 1931 | Box 124 \ 5 scan0018 | |
| Internal memorandum discussing the technical merits and reliability of competitor cars like Alfa Romeo and Lagonda. | 5th Dec 1931 | Box 124 \ 5 scan0019 | |
| Brief memo from Sg. to Hs. regarding the retention of items related to Alfa Romeo. | 31th Dec 1931 | Box 124 \ 5 scan0020 | |
| Delay in testing an Alfa Romeo engine due to the test beds being full. | 1st Jan 1932 | Box 124 \ 5 scan0021 | |
| Performance test data sheet for an Alfa-Romeo 17/95 1750cc engine. | 1st Jan 1932 | Box 124 \ 5 scan0022 | |
| Gear ratio calculations and weight specifications for an Alfa Romeo car. | 1st Jan 1932 | Box 124 \ 5 scan0023 | |
| Calculation sheet for the gear ratios of an 8 Litre Bentley. | 4th Jan 1932 | Box 124 \ 5 scan0024 | |
| Performance, speedometer, and weight data for an 8 Litre Bentley. | 4th Jan 1932 | Box 124 \ 5 scan0025 | |
| List of experiments to be conducted on an Alfa Romeo engine. | 18th Jan 1932 | Box 124 \ 5 scan0026 | |
| Requesting technical analysis and measurements of a dismantled Alfa Romeo engine. | 2nd Feb 1932 | Box 124 \ 5 scan0027 | |
| Request for measurements of an Alfa Romeo crankcase, crankshaft, and camshaft brakes. | 4th Feb 1932 | Box 124 \ 5 scan0028 | |
| From Sg to Hs regarding the sale of an Alfa Romeo car. | 5th Feb 1932 | Box 124 \ 5 scan0029 | |
| Outlining the plan to examine an Alfa Romeo engine and conduct comparative tests on its blower against a Power Plus blower. | 1st Feb 1932 | Box 124 \ 5 scan0030 | |
| Test report on an Alfa-Romeo engine. | 10th Feb 1932 | Box 124 \ 5 scan0031 | |
| Test report on engine performance, covering ignition, sparking plugs, running speeds, and vibrations. | 10th Feb 1932 | Box 124 \ 5 scan0032 | |
| Engine test results, including valve timing, oil pressure, and fuel consumption. | 10th Feb 1932 | Box 124 \ 5 scan0033 | |
| Graph of compression pressures versus RPM for an Alfa-Romeo unit. | 5th Feb 1932 | Box 124 \ 5 scan0034 | |
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