| Description | Date | Identifier | |
| Letter from Gleason Works regarding a preliminary investigation and recalculation for a 12-cylinder car's gear ratio. | 17th Sep 1937 | Box 92 \ 5 scan0147 | |
| Modifications to the Phantom III rear axle hypoid bevel gears based on recommendations from Gleason Works. | 13th Oct 1937 | Box 92 \ 5 scan0148 | |
| Letter from Gleason Works enclosing duplicate prints and a photostat print for an 8/34 hypoid gear ratio. | 1st Oct 1937 | Box 92 \ 5 scan0149 | |
| Summary sheet detailing specifications and changes for Hypoid Gears. | 11th Aug 1937 | Box 92 \ 5 scan0150 | |
| Summary sheet for the settings and dimensions of Hypoid Gears, Summary No. 823. | 28th Sep 1937 | Box 92 \ 5 scan0151 | |
| Summary sheet detailing the specifications for manufacturing Hypoid Gears, summary number 823. | 28th Sep 1937 | Box 92 \ 5 scan0152 | |
| Drawing comparing old and new 8x34 hypoid pinion and gear blank outlines. | 1st Oct 1937 | Box 92 \ 5 scan0153 | |
| Standardisation of parts for the Phantom III, concerning Large Differential Thrust Washers. | 24th Sep 1937 | Box 92 \ 5 scan0154 | |
| Mandating the replacement of Phantom III mild steel differential boxes on 34 cars due to a failure. | 26th Oct 1937 | Box 92 \ 5 scan0155 | |
| Confirming an arrangement to change the rear axles on cars 33.EX and 37.EX. | 27th Oct 1937 | Box 92 \ 5 scan0156 | |
| Changing differential casings from mild steel to nickel steel on 35 cars. | 11th Nov 1937 | Box 92 \ 5 scan0157 | |
| Recurring complaint of rear wheel drive rattles on the Phantom III model. | 21th Dec 1937 | Box 92 \ 5 scan0158 | |
| Issue of wheel driver knocks and proposed solutions for various models. | 22th Dec 1937 | Box 92 \ 5 scan0159 | |
| The creation of new wheel drivers for specific vehicle models to address depot complaints. | 22th Dec 1937 | Box 92 \ 5 scan0160 | |
| Issue with rear wheel driver forgings for the Phantom III chassis due to incorrect machining allowance. | 22th Dec 1937 | Box 92 \ 5 scan0161 | |
| Proposal to standardise the Wraith rear axle side plate for use on the Phantom III to reduce factory costs. | 25th Jan 1938 | Box 92 \ 5 scan0162 | |
| Confirming no objection to using the Wraith axle casing side plate on the Phantom III. | 7th Feb 1938 | Box 92 \ 5 scan0163 | |
| Modification notice regarding the driving flange, propeller shaft, and associated parts for the Phantom III chassis. | 12th Mar 1938 | Box 92 \ 5 scan0164 | |
| Parts list update detailing replacements and parts no longer required, continued on page 2. | 12th Mar 1938 | Box 92 \ 5 scan0165 | |
| Modification to the Rear Axle Driving Flange for the Phantom III to stiffen the boss. | 15th Mar 1938 | Box 92 \ 5 scan0166 | |
| Notification detailing a modification to the Phantom III rear axle shaft and driver. | 11th May 1938 | Box 92 \ 5 scan0167 | |
| Recommendation to rationalize the Phantom III model with a new frame, Packard type suspension, and a semi-floating rear axle. | 17th May 1938 | Box 92 \ 5 scan0168 | |
| Re-issue of print G.CD.668 for the Phantom III rear axle driving shaft, detailing an increase in the diameter of the external boss. | 3rd Jun 1938 | Box 92 \ 5 scan0169 | |
| Instruction to modify the rear axle driving dog for the Phantom III 'E' series. | 22th Sep 1938 | Box 92 \ 5 scan0170 | |
| Requesting two pairs of gears for the rear axle to be tested to destruction. | 19th Nov 1938 | Box 92 \ 5 scan0171 | |
| Testing of a Bentley SO gearbox in a Phantom III chassis and associated component changes. | 20th Dec 1938 | Box 92 \ 5 scan0172 | |
| Phantom III rear axle oil seal tests using double oil seals. | 25th Aug 1939 | Box 92 \ 5 scan0173 | |
| Inspection finding grease dissolving in oil between seals and proposing alternative solutions. | 14th Feb 1935 | Box 92 \ 5 scan0174 | |
| Fitting of a Phantom front axle to a Spectre vehicle and the resulting axle control considerations. | 14th Feb 1935 | Box 92 \ 5 scan0175 | |
| Schematic N.Sch.4396 for a modified conventional front axle for the Spectre model. | 2nd Mar 1935 | Box 92 \ 5 scan0176 | |
| The Spectre model's conventional front axle and its associated forging schedule. | 2nd Mar 1935 | Box 92 \ 5 scan0177 | |
| Secret memorandum regarding the Spectre model's conventional front axle and the mounting of a modified Phantom shock damper. | 4th Mar 1935 | Box 92 \ 5 scan0178 | |
| The mounting of D.W.S. Permanent Jacks on the front axle of a Spectre model. | 4th Mar 1935 | Box 92 \ 5 scan0179 | |
| Brake actuating gear and a minor modification to the front axle for the Spectre model. | 6th Mar 1935 | Box 92 \ 5 scan0180 | |
| Layout of the front brake pull rod for the Spectre conventional front axle. | 7th Mar 1935 | Box 92 \ 5 scan0181 | |
| Arrangement of the front brake intermediate lever and air damper for a Spectre with a conventional front axle. | 9th Mar 1935 | Box 92 \ 5 scan0182 | |
| Secret memo regarding diagram N. Sch. G416 for the Spectre's brake leverages with a semi-servo system. | 13th Mar 1935 | Box 92 \ 5 scan0183 | |
| Secret memo regarding camshaft bearing provisions and brake system springs for the Spectre model with a conventional front axle. | 14th Mar 1935 | Box 92 \ 5 scan0184 | |
| Secret memo regarding drawing N.Sch.4421 which shows the J.3. type side steering tube joints for the Spectre with a conventional front axle. | 15th Mar 1935 | Box 92 \ 5 scan0185 | |
| Modifications to the Phantom III front axle pivot following a 10,000-mile test. | 19th Feb 1936 | Box 92 \ 5 scan0186 | |
| Modifications to the bolting of the steering lever to the yoke piece to improve clearance and design. | 26th Feb 1936 | Box 92 \ 5 scan0187 | |
| Modifications and manufacturing options for the Phantom III front axle top pivot bearing. | 26th Feb 1936 | Box 92 \ 5 scan0188 | |
| Confirming receipt of Cruciform Assemblies and Front Crossmember parts for the Phantom III, sent to the Experimental Department. | 6th Nov 1936 | Box 92 \ 5 scan0189 | |
| List of suggested modifications for the Continental Phantom III engine and chassis. | 21th May 1936 | Box 92 \ 6 scan0001 | |
| Continuing a list of chassis specifications and discussing weight-saving measures for Continental models. | 21th May 1936 | Box 92 \ 6 scan0002 | |
| Power curve graph for a Phantom III engine with a standard exhaust silencer, showing BHP, MEP, and MPH against engine RPM. | 12th Jun 1936 | Box 92 \ 6 scan0003 | |
| Confirming instructions for modifying a Continental Ph.III block with N.M.C. exhaust valve seats and ensuring the correct Brinell figure for 6-B-IV bearings. | 12th Jun 1936 | Box 92 \ 6 scan0004 | |
| Engine specification for the Continental Phantom III. | 16th Jun 1936 | Box 92 \ 6 scan0005 | |
| Specifications for an induction system and notes on crankshaft and piston modifications. | 16th Jun 1936 | Box 92 \ 6 scan0006 | |
| Unexpected high weight of the Phantom III model and plans for its reduction. | 14th Aug 1936 | Box 92 \ 6 scan0007 | |
| Points to be raised regarding the Continental PH.111 project, including material changes and parts yet to be designed. | 18th Aug 1936 | Box 92 \ 6 scan0008 | |
| Proposed modifications to convert a dynamo and water pump for the Continental Phantom III. | 18th Aug 1936 | Box 92 \ 6 scan0009 | |
| Scheme for a Ph.III cylinder head water outlet and a request to test the outlets on an engine. | 24th Aug 1936 | Box 92 \ 6 scan0010 | |
| Manufacturing lightened parts for the Continental Ph.III engine in aluminium instead of magnesium. | 24th Aug 1936 | Box 92 \ 6 scan0011 | |
| Chassis specification, performance, and cost-saving measures for the Continental Phantom III. | 29th Aug 1936 | Box 92 \ 6 scan0012 | |
| Continental Phantom III specification detailing proposed and achieved weight savings for various components. | 29th Aug 1936 | Box 92 \ 6 scan0013 | |
| Modifications to the steering levers of a Continental Phantom III chassis to reduce weight. | 1st Sep 1936 | Box 92 \ 6 scan0014 | |
| Material choices and parts supply for the Continental Phantom III lightened chassis. | 4th Sep 1936 | Box 92 \ 6 scan0015 | |
| Instructions for manufacturing a petrol tank for the Continental Phantom III car. | 5th Sep 1936 | Box 92 \ 6 scan0016 | |
| Requesting the manufacture of two lighter weight steering control quadrants for the Continental Phantom III using forged aluminium. | 10th Sep 1936 | Box 92 \ 6 scan0017 | |
| Potential weight saving modifications to the electrical system of the Continental Sports Phantom III Experimental Chassis. | 12th Aug 1936 | Box 92 \ 6 scan0018 | |
| Outlining proposed modifications to lighten the radiator for the Continental Phantom III. | 18th Sep 1936 | Box 92 \ 6 scan0019 | |
| Requesting the construction of a lightened radiator and modified water system components. | 19th Sep 1936 | Box 92 \ 6 scan0020 | |
| Letter from John Thompson Motor Pressings Ltd. regarding delays and production difficulties with experimental sidemembers. | 19th Sep 1936 | Box 92 \ 6 scan0021 | |
| Letter from John Thompson Motor Pressings Ltd. regarding instructions for experimental sidemembers and cruciform members. | 19th Sep 1936 | Box 92 \ 6 scan0022 | |
| Production and verification of a Wraith & Continental Phantom III steering gear. | 23th Sep 1936 | Box 92 \ 6 scan0023 | |
| Letter to John Thompson Motor Pressings Ltd. confirming the urgency of .080 section frames and requesting an update on material dispatch. | 1st Oct 1936 | Box 92 \ 6 scan0024 | |
| Procurement and replacement of bodies for experimental cars. | 8th Oct 1936 | Box 92 \ 6 scan0025 | |
| Instruction to fit strengthened exhaust valves to the Continental Phantom, Unit No.4. | 9th Oct 1936 | Box 92 \ 6 scan0026 | |
| Order of brake material from Ferodo Ltd. for the Continental Phantom III. | 12th Oct 1936 | Box 92 \ 6 scan0027 | |
| Modifications and a specified angle for the Continental Phantom III steering system. | 12th Oct 1936 | Box 92 \ 6 scan0028 | |
| Outlining the engine and chassis building programme for two Phantom III chassis, 38-EX and 39-EX. | 14th Oct 1936 | Box 92 \ 6 scan0029 | |
| Requesting an order of three Brimol liners for the Continental Phantom III brake drums, referencing a specific print. | 19th Oct 1936 | Box 92 \ 6 scan0030 | |
| Amended specification for the Continental Phantom III chassis detailing corrections and additions. | 20th Oct 1936 | Box 92 \ 6 scan0031 | |
| List of specifications and modifications for various chassis components including springs and steering. | 20th Oct 1936 | Box 92 \ 6 scan0032 | |
| List of parts and specifications for components including the petrol tank, pedals, and various piping systems. | 20th Oct 1936 | Box 92 \ 6 scan0033 | |
| List of standard production and modified vehicle components and operations. | 20th Oct 1936 | Box 92 \ 6 scan0034 | |
| List of parts and modifications for various vehicle components, including hubs, suspension, brakes, and shafts. | 20th Oct 1936 | Box 92 \ 6 scan0035 | |
| List of specifications for various vehicle components and assemblies. | 20th Oct 1936 | Box 92 \ 6 scan0036 | |
| Specification list noting Lockheed Jacks, the position of a spare wheel, and the axle ratio. | 20th Oct 1930 | Box 92 \ 6 scan0037 | |
| Amended specification for the Continental Phantom III chassis, detailing corrections and additions. | 20th Oct 1936 | Box 92 \ 6 scan0038 | |
| List of specifications and modifications for various vehicle components including springs and steering. | 20th Oct 1936 | Box 92 \ 6 scan0039 | |
| List of vehicle components and their production specifications. | 20th Oct 1936 | Box 92 \ 6 scan0040 | |
| List of parts and modifications for various vehicle components including stabilisers, controls, axles, and brakes. | 20th Oct 1936 | Box 92 \ 6 scan0041 | |
| List of parts and production specifications for various vehicle components, including hubs, suspension, brakes, and steering. | 20th Oct 1936 | Box 92 \ 6 scan0042 | |
| Specification sheet detailing modifications and production standards for various vehicle components. | 20th Oct 1936 | Box 92 \ 6 scan0043 | |
| List of specifications for jacks, a spare wheel, and an axle ratio. | 20th Oct 1930 | Box 92 \ 6 scan0044 | |
| Revised and complete specification for the Continental Phantom Unit No.14. | 21th Oct 1936 | Box 92 \ 6 scan0045 | |
| Instruction regarding the induction system for 4 port heads, specifying the inclusion of a water heat hot spot in aluminium. | 6th Oct 1936 | Box 92 \ 6 scan0046 | |
| Cover memo from Sg. to Rm. regarding a Barker Body - Continental P.III, enclosing further correspondence. | 4th Nov 1936 | Box 92 \ 6 scan0047 | |
| Requesting an update on a Barker Body for a Phantom III Continental, specifically its readiness and confirmation of liability for weight reduction. | 30th Oct 1936 | Box 92 \ 6 scan0048 | |
| Delivery timeline, weight reduction, and construction responsibility for a Barker Body on a Continental Phantom III chassis. | 3rd Nov 1936 | Box 92 \ 6 scan0049 | |
| Progress report outlining actions and deadlines for the Phantom III Continental project. | 5th Nov 1936 | Box 92 \ 6 scan0050 | |
| Commissioning of a lightened body for the Continental Phantom III, comparing coachbuilders Barkers and Youngs. | 4th Nov 1936 | Box 92 \ 6 scan0051 | |
| Notes from a conference regarding the position of the Wraith & Continental Phantom III chassis. | 13th Nov 1936 | Box 92 \ 6 scan0052 | |
| Request to fit a bracket and pipes for a high lift petrol pump to a Continental Phantom III, chassis Lec.5191. | 13th Nov 1936 | Box 92 \ 6 scan0053 | |
| Production status report on components for the Continental Phantom III. | 27th Nov 1936 | Box 92 \ 6 scan0054 | |
| Request to produce a Phantom III Continental bonnet using a thinner 14 S.W.G. aluminium. | 27th Nov 1936 | Box 92 \ 6 scan0055 | |
| Request for the ignition distributor governor curve for the No.14 'Continental' Phantom III unit. | 10th Dec 1936 | Box 92 \ 6 scan0056 | |
| Request for particulars on 5-inch initial deflection front springs for the Continental Phantom III. | 11th Dec 1936 | Box 92 \ 6 scan0057 | |
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