| Description | Date | Identifier | |
| Design alterations for the front suspension of a Spectre II for the French market. | 26th Apr 1935 | Box 95 \ 3 scan0077 | |
| Request to produce the necessary parts to fit a front roll rod to a Spectre I car. | 26th Apr 1935 | Box 95 \ 3 scan0078 | |
| Sideways shake in the rear seats of the Spectre model. | 26th Apr 1935 | Box 95 \ 3 scan0079 | |
| Graph comparing the angular twist of rear springs under applied torque for different vehicle models. | 26th Apr 1935 | Box 95 \ 3 scan0080 | |
| Graph comparing the sideway deflection of rear springs under load for Cadillac, Spectre, and Phantom models. | 25th Apr 1935 | Box 95 \ 3 scan0081 | |
| Modifications to the front suspension for the Spectre 3 model. | 25th Apr 1935 | Box 95 \ 3 scan0082 | |
| Particulars of a spring for a Spectre independent front wheel suspension system. | 30th Apr 1935 | Box 95 \ 3 scan0083 | |
| Request to saw-cut a pair of rear Spectre springs. | 30th Apr 1935 | Box 95 \ 3 scan0084 | |
| Modifications to the Spectre front suspension yoke, rebound and bump. | 2nd May 1935 | Box 95 \ 3 scan0085 | |
| Cutting the rear road spring to increase lateral flexibility and resolve a Spectre rear axle dither issue. | 2nd May 1935 | Box 95 \ 3 scan0086 | |
| Inadequate rear spring clearance on a Spectre model and a proposed modification. | 8th May 1935 | Box 95 \ 3 scan0087 | |
| Request to produce a pair of standard bottom links G. 81567 for a Spectre I car. | 9th May 1935 | Box 95 \ 3 scan0088 | |
| Request to order a pair of Spectre rear springs with specific modifications. | 9th May 1935 | Box 95 \ 3 scan0089 | |
| Suspension specification sheet for the Spectre II model for France. | 9th May 1935 | Box 95 \ 3 scan0090 | |
| Modifications to the Spectre front suspension. | 9th May 1935 | Box 95 \ 3 scan0091 | |
| Suspension of the Spectre model, including a blueprint of ground clearances. | 13th May 1935 | Box 95 \ 3 scan0092 | |
| Blueprint showing ground clearances for the 'Spectre' project, with a modified 3rd crossmember and a table of dimensions for different wheel and tyre sizes. | 7th May 1935 | Box 95 \ 3 scan0093 | |
| Internal request to order a pair of Spectre rear springs. | 14th May 1935 | Box 95 \ 3 scan0094 | |
| Request to fit 7 inch initial deflection rear springs (F.86931) from Spectre I to another car. | 14th May 1935 | Box 95 \ 3 scan0095 | |
| Temporary and permanent application of a front roll rod and jack pad for the 'Spectre' project. | 14th May 1935 | Box 95 \ 3 scan0096 | |
| Reinforcements and modifications to the SPECTRE front suspension. | 29th May 1935 | Box 95 \ 3 scan0097 | |
| Drawing N.Sch.4515, which details the application of bushes in the Spectre's front suspension. | 5th Jun 1935 | Box 95 \ 3 scan0098 | |
| Elimination of adjustable castor on the Spectre front suspension. | 18th Jun 1935 | Box 95 \ 3 scan0099 | |
| Specifications for Spectre III road springs for the French market, including part numbers, loads, and buffer clearances. | 19th Jun 1935 | Box 95 \ 3 scan0100 | |
| New poundages for Spectre rear road springs based on a test vehicle in France. | 24th Jun 1935 | Box 95 \ 3 scan0101 | |
| Secret memorandum about a proposed modification to the Spectre front suspension autoloc damper. | 25th Jun 1935 | Box 95 \ 3 scan0102 | |
| Two-part spring plunger for the Spectre Front Spring Assembly. | 25th Jun 1935 | Box 95 \ 3 scan0103 | |
| Procedure to prevent oil leaks from the Spectre front suspension. | 28th Jun 1935 | Box 95 \ 3 scan0104 | |
| Test results and hysteresis curves for Spectre II independent suspension dampers. | 1st Jul 1935 | Box 95 \ 3 scan0105 | |
| Graph showing load loss due to friction for Spectre II independent suspension dampers. | 5th Jun 1938 | Box 95 \ 3 scan0106 | |
| Spectre front suspension, discussing wheel movements and replacement springs. | 1st Jul 1935 | Box 95 \ 3 scan0107 | |
| Specification sheet for Spectre front suspension springs with Autolock Damper. | 1st Jul 1935 | Box 95 \ 3 scan0108 | |
| Specifications for Spectre front suspension springs for two different damper configurations. | 19th Jun 1935 | Box 95 \ 3 scan0109 | |
| Technical note detailing spring rate specifications. | 19th Jun 1935 | Box 95 \ 3 scan0110 | |
| Design and fitting of Spectre front road springs. | 10th Jul 1935 | Box 95 \ 3 scan0111 | |
| Failure in the Spectre front damper assembly and proposals for improvement. | 17th Jul 1935 | Box 95 \ 3 scan0112 | |
| Secret memorandum on a failure of the Spectre front suspension damper assembly and proposed design improvements. | 17th Jul 1935 | Box 95 \ 3 scan0113 | |
| Sealing failure on the Spectre front damper assembly and proposed improvements. | 17th Jul 1935 | Box 95 \ 3 scan0114 | |
| Modifications to the Spectre front suspension to address an oil leak from the spring pot. | 19th Jul 1935 | Box 95 \ 3 scan0115 | |
| Letter to a supplier requesting samples of corru-joint packings to replace existing paper joints. | 6th Aug 1935 | Box 95 \ 3 scan0116 | |
| Testing new parts to resolve oil leaks from the Spectre front suspension. | 7th Aug 1935 | Box 95 \ 3 scan0117 | |
| Letter from Newton & Nicholson Ltd confirming the despatch of six Corrugated Brass Joint Rings. | 7th Aug 1935 | Box 95 \ 3 scan0118 | |
| Letter to a supplier regarding an incorrect order of Corru-Joint Brass Rings and a request for replacements. | 9th Aug 1935 | Box 95 \ 3 scan0119 | |
| Modifications to the Spectre's front suspension, specifically the oil filler, tubular filter, and a reduced breather. | 12th Jul 1935 | Box 95 \ 3 scan0120 | |
| Invoice from Newton & Nicholson Ltd. for corrugated rings, requesting an official order be raised. | 12th Aug 1935 | Box 95 \ 3 scan0121 | |
| Letter from Newton & Nicholson confirming the dispatch of Corrugated Brass Rings. | 13th Aug 1935 | Box 95 \ 3 scan0122 | |
| Invoices from Newton & Nicholson Ltd. for 'Taylors Patent' Corrugated Rings and special joints. | 14th Aug 1935 | Box 95 \ 3 scan0123 | |
| Return of poorly finished Corrujoint Packings to the supplier, Newton & Nicholson Ltd. | 14th Aug 1935 | Box 95 \ 3 scan0124 | |
| Order for Corrujoint Packings and the return of a faulty batch. | 14th Aug 1935 | Box 95 \ 3 scan0125 | |
| Letter to a supplier regarding the poor quality of received packings and a request for a cost estimate. | 14th Aug 1935 | Box 95 \ 3 scan0126 | |
| Calculations for front and rear road spring weights for the Spectre model. | 15th Jun 1935 | Box 95 \ 3 scan0127 | |
| Weight specifications and calculations for various Spectre car models and body types. | 15th Jun 1935 | Box 95 \ 3 scan0128 | |
| Weight analysis for Olympia Show Cars and a Continental Touring Saloon, detailing deductions and axle weights. | 15th Jun 1935 | Box 95 \ 3 scan0129 | |
| Weight analysis of an Enclosed Limousine, model 31-EX. | 15th Jun 1935 | Box 95 \ 3 scan0130 | |
| Appendix page detailing weight calculations for the lightest and heaviest bodied cars, with and without extras, and the computed weight of an experimental model. | 15th Jun 1935 | Box 95 \ 3 scan0131 | |
| Weight calculation sheet for car models 32-EX and No.5 Spectre, detailing added and removed features. | 15th Jun 1935 | Box 95 \ 3 scan0132 | |
| Detailed weight breakdown of a complete car with various optional features and adjustments. | 15th Jun 1935 | Box 95 \ 3 scan0133 | |
| Graph plotting front and rear wheel weights for the Spectre model, with weight adjustments for bumpers. | 16th Aug 1935 | Box 95 \ 3 scan0134 | |
| Letter from Newton & Nicholson Ltd. concerning the manufacture and pricing of corrugated brass joints. | 16th Aug 1935 | Box 95 \ 3 scan0135 | |
| Modifications to the Spectre front suspension system, including changes to studding and brackets. | 16th Aug 1935 | Box 95 \ 3 scan0136 | |
| Secret memorandum regarding modifications to the Spectre front suspension components. | 16th Aug 1935 | Box 95 \ 3 scan0137 | |
| Requirements and ordering process for road springs for eight Olympia Show Cars. | 18th Jun 1935 | Box 95 \ 3 scan0138 | |
| Modifications to the Spectre front suspension for centralised lubrication. | 20th Aug 1935 | Box 95 \ 3 scan0139 | |
| Requesting an order to be issued for 12 corrugated ring joints from supplier Newton & Nicholson. | 21th Aug 1935 | Box 95 \ 3 scan0140 | |
| Secret memo detailing modifications to the Spectre front suspension system and Autoloc shock damper. | 24th Jun 1935 | Box 95 \ 3 scan0141 | |
| Schemes for a dowel peg and spigot for locating the Spectre Front Spring Pot. | 25th Jun 1935 | Box 95 \ 3 scan0142 | |
| Secret memo regarding modifications to the Spectre front suspension, including a filter and dampers. | 15th Aug 1935 | Box 95 \ 3 scan0143 | |
| Specification sheet for a La Salle front suspension coil spring brought from the U.S.A. | 31th Aug 1935 | Box 95 \ 3 scan0144 | |
| Secret memo regarding the attachment of rubber buffers in the front suspension for the Spectre model. | 2nd Sep 1935 | Box 95 \ 3 scan0145 | |
| Specifications for the Spectre front suspension, including spring load, packing thickness, and damper settings. | 2nd Sep 1935 | Box 95 \ 3 scan0146 | |
| Oil leaks on the Spectre front suspension and a request to trial an asbestos type gland. | 3rd Sep 1935 | Box 95 \ 3 scan0147 | |
| Directive on the material and clearance for Spectre front suspension shock damper pistons. | 5th Sep 1935 | Box 95 \ 3 scan0148 | |
| Requesting the modification of an experimental autolock rear damper to resolve a metallic clicking issue. | 10th Sep 1935 | Box 95 \ 3 scan0149 | |
| Request for a complete analysis and report on two failed levers from the front suspension units of a Phantom III. | 23th Sep 1935 | Box 95 \ 3 scan0150 | |
| Spectre front suspension inner lever failure following a 20,000-mile test run in France. | 25th Sep 1935 | Box 95 \ 3 scan0151 | |
| Photograph showing failed components from Spectre III and Spectre II after testing. | 25th Sep 1928 | Box 95 \ 3 scan0152 | |
| Modifications to the Phantom III front suspension to address fractures found during testing. | 27th Sep 1935 | Box 95 \ 3 scan0153 | |
| Micro-examination report on fractured levers from a Phantom III front suspension unit. | 2nd Oct 1935 | Box 95 \ 3 scan0154 | |
| Continued memo regarding modifications to splines and raising the Brinell hardness range. | 2nd Oct 1935 | Box 95 \ 3 scan0155 | |
| Failure of the Phantom III front suspension during a 20,000-mile test. | 3rd Oct 1935 | Box 95 \ 3 scan0156 | |
| Modification to the Phantom III front suspension bracket to resolve a fouling issue. | 3rd Oct 1935 | Box 95 \ 3 scan0157 | |
| Handover of Autolock dampers and front suspension units for development work. | 15th Oct 1935 | Box 95 \ 3 scan0158 | |
| New Dixtampo or brass forged 3-way junction piece for the Phantom III front suspension lubrication system. | 23th Oct 1935 | Box 95 \ 3 scan0159 | |
| Car seating positions, a proposed design, and a comparison with a Hupmobile limousine. | 1st Nov 1935 | Box 95 \ 3 scan0160 | |
| Blueprint outlining the side profile of a car with improved seating positions. | 31th Oct 1935 | Box 95 \ 3 scan0161 | |
| Specifying the required poundage for rear road springs on Phantom III, 36-EX & 37-EX models. | 4th Nov 1935 | Box 95 \ 3 scan0162 | |
| Car seating positions, driver comfort, and vehicle design considerations. | 6th Nov 1935 | Box 95 \ 3 scan0163 | |
| And commenting on car seating positions for car Rm3 and a comparison with a Hupmobile Limousine. | 5th Nov 1935 | Box 95 \ 3 scan0164 | |
| Requesting a change of supplier for front suspension springs on the Spectre Bumper Chassis. | 11th Nov 1935 | Box 95 \ 3 scan0165 | |
| Replacing Vellumoid jointings with Klingerite joints on the Phantom III front suspension to prevent oil leaks. | 16th Nov 1935 | Box 95 \ 3 scan0166 | |
| Performance and selection of road springs for the Phantom III chassis. | 19th Nov 1935 | Box 95 \ 3 scan0167 | |
| Blueprint comparing the rear leaf spring specifications for Cadillac and Spectre models. | 22th Feb 1935 | Box 95 \ 3 scan0168 | |
| Micro-examination report on a failed Phantom III front coil spring, investigating surface decarburisation. | 22th Nov 1935 | Box 95 \ 3 scan0169 | |
| Analysis of spring specimen fractures and failures, referencing photomicrographs and various test results. | 20th Jun 1935 | Box 95 \ 3 scan0170 | |
| Laboratory photomicrograph showing a magnified view of a material's surface. | 20th Jun 1935 | Box 95 \ 3 scan0171 | |
| Laboratory photomicrograph showing the fracture surface of a cylindrical metal component. | 20th Jun 1935 | Box 95 \ 3 scan0172 | |
| Laboratory photomicrograph showing the fracture surface of a metal component. | 20th Jun 1935 | Box 95 \ 3 scan0173 | |
| Photomicrograph showing a close-up of a fractured metal component with an arrow indicating a feature. | 20th Jun 1935 | Box 95 \ 3 scan0174 | |
| Photomicrograph showing pitting on a metal component, indicated by an arrow. | 20th Jun 1935 | Box 95 \ 3 scan0175 | |
| Photograph of a fractured Spectre shock damper spring after a running test. | 7th Nov 1935 | Box 95 \ 3 scan0176 | |
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