| Description | Date | Identifier | |
| Payment remittance and a request cabled to Inskip for steamer shipment details for a Cadillac 16. | 28th Jun 1934 | Box 125 \ 1 scan0096 | |
| Spectre engine's compression ratios and timing in comparison to Cadillac and Bentley engines. | 29th Jun 1934 | Box 125 \ 1 scan0097 | |
| Cable received about a delayed shipment of a Cadillac 16 due to complications with paperwork. | 2nd Jul 1934 | Box 125 \ 1 scan0098 | |
| Importing a Cadillac, difficulties avoiding import duty, and arrangements for its shipment and collection. | 13th Jul 1934 | Box 125 \ 1 scan0099 | |
| The permanent importation of a Cadillac and maintaining goodwill with the agents, Lendrum & Hartman. | 14th Jul 1934 | Box 125 \ 1 scan0100 | |
| Arrival of a Cadillac in London and arrangements for its collection. | 23th Jul 1934 | Box 125 \ 1 scan0101 | |
| Testing, inspection, and weighing of a 16-cylinder Cadillac. | 30th Jul 1934 | Box 125 \ 1 scan0102 | |
| Weight measurements and performance test results for a Cadillac '16'. | 1st Aug 1934 | Box 125 \ 1 scan0103 | |
| Inspection of a 16-cylinder Cadillac to understand its body construction and weight. | 1st Aug 1934 | Box 125 \ 1 scan0104 | |
| Reviewing the performance and features of a 16-cylinder Cadillac. | 1st Aug 1934 | Box 125 \ 1 scan0105 | |
| Letter from Hoopers about a Cadillac, ventilation, and a request for coachwork weight. | 21th Aug 1934 | Box 125 \ 1 scan0106 | |
| Technical report from coachbuilder Hooper & Co. comparing a 16-cylinder Cadillac car body to British construction methods. | 13th Aug 1934 | Box 125 \ 1 scan0107 | |
| Critique of various car features including hub caps, internal telephone, seating, blinds, and ventilators. | 13th Aug 1934 | Box 125 \ 1 scan0108 | |
| Assessment of a car's bodywork and interior features, including ventilation, styling, and fittings. | 13th Aug 1934 | Box 125 \ 1 scan0109 | |
| Letter comparing the bodywork, panel work, and interior fittings of a car against other models, and requesting weight information. | 28th Aug 1934 | Box 125 \ 1 scan0110 | |
| Letter to Cadillac comparing their car's performance with the Phantom II, discussing various technical aspects. | 28th Aug 1934 | Box 125 \ 1 scan0111 | |
| Vehicle performance, comparing acceleration to the Phantom and cornering to a Cadillac. | 28th Aug 1934 | Box 125 \ 1 scan0112 | |
| Letter to Lendrum & Hartman Ltd. regarding the improved ride of a Buick and the future availability of a Cadillac 16 for testing. | 28th Aug 1934 | Box 125 \ 1 scan0113 | |
| Comparison of ground clearance measurements for a Spectre vehicle against an Essex 6 and a Cadillac. | 12th Sep 1934 | Box 125 \ 1 scan0114 | |
| Ground clearance specifications for the Spectre model. | 13th Sep 1934 | Box 125 \ 1 scan0115 | |
| The release of a box of parts for a Cadillac car from Customs. | 18th Sep 1934 | Box 125 \ 1 scan0116 | |
| Feedback on a Cadillac test drive, focusing on suspension and steering, and requesting an inspection of its induction pipe and carburetter. | 1st Oct 1934 | Box 125 \ 1 scan0117 | |
| Request to order four Dunlop inner tubes for use on a Cadillac car. | 6th Oct 1934 | Box 125 \ 1 scan0118 | |
| Test report on the frame distortion of a 16 V. Cadillac. | 25th Oct 1934 | Box 125 \ 1 scan0119 | |
| Comparative table of ground clearance measurements for various car models. | 29th Oct 1934 | Box 125 \ 1 scan0120 | |
| The design, manufacturing, and assembly of Cadillac hydraulic lash adjusters. | 29th Oct 1934 | Box 125 \ 1 scan0121 | |
| Manufacturing and design difficulties with lash adjusters and associated components. | 29th Oct 1934 | Box 125 \ 1 scan0122 | |
| Design notes on rocker arm assembly components, including clearances, materials, and part-specific considerations. | 29th Oct 1934 | Box 125 \ 1 scan0123 | |
| General comments regarding lash adjuster parts, lubrication, and cam contour design. | 21th Nov 1934 | Box 125 \ 1 scan0124 | |
| Cablegram from Olley to W.A. Robotham regarding a helix angle specification. | 21th Nov 1934 | Box 125 \ 1 scan0125 | |
| Telegram received about the helix angle on Cadillac steering. | 22th Nov 1934 | Box 125 \ 1 scan0126 | |
| Comparing steering ratios and design parameters with Cadillac's system, specifically regarding the La Salle column fitted to the Spectre. | 23th Nov 1934 | Box 125 \ 1 scan0127 | |
| The supply of alternative springs and replacement parts for a Cadillac. | 31th Dec 1934 | Box 125 \ 1 scan0128 | |
| Comparative road tests in France between a 20/25 R-R and a Cadillac. | 14th Jan 1935 | Box 125 \ 1 scan0129 | |
| Comparison of chassis and steering with a Cadillac, a Bentley drive report, and an observation on French headlamps. | 14th Jan 1935 | Box 125 \ 1 scan0130 | |
| Results of tests in France on a Cadillac and a 21-G-4, and arranging meetings with coachbuilders. | 18th Jan 1935 | Box 125 \ 1 scan0131 | |
| On Hotel De France letterhead regarding arrangements for a garage ticket in Boulogne for car 21 G IV. | 18th Jan 1935 | Box 125 \ 1 scan0132 | |
| Requesting arrangements for the technical inspection of a Cadillac's body and chassis upon its return from France. | 18th Jan 1935 | Box 125 \ 1 scan0133 | |
| Arrangements for coachbuilders to examine the bodywork of car 21-G-4 after tests in France. | 18th Jan 1935 | Box 125 \ 1 scan0134 | |
| Tests in France on Cadillac & 21-G-IV cars by London Coachbuilders. | 19th Jan 1935 | Box 125 \ 1 scan0135 | |
| Attendance at the Coachbuilders dinner and coordinating related car movements. | 21th Jan 1935 | Box 125 \ 1 scan0136 | |
| Results and plans for testing a Cadillac in France, comparing its coachwork to their own and detailing responsibilities for 'Spectre' bodies. | 21th Jan 1935 | Box 125 \ 1 scan0137 | |
| Telegram received by telephone confirming a car's safe arrival in Boulogne. | 21th Jan 1935 | Box 125 \ 1 scan0138 | |
| Tests in France on a Cadillac and a 21-G-4 by London Coachbuilders. | 21th Jan 1935 | Box 125 \ 1 scan0139 | |
| Secret internal memo discussing the plan to dismantle and examine the coachwork of a Cadillac for comparison purposes. | 24th Jan 1935 | Box 125 \ 1 scan0140 | |
| Secret memorandum detailing the plan to strip and examine a Cadillac's coachwork. | 25th Jan 1935 | Box 125 \ 1 scan0141 | |
| Note about handing over responsibility for the Spectre Coachwork. | 25th Jan 1935 | Box 125 \ 1 scan0142 | |
| Learnings from tests on a Cadillac and clarifying the coachwork for two 'Spectre' model bodies. | 23th Jan 1935 | Box 125 \ 1 scan0143 | |
| Responsibilities of coachbuilders and the building of experimental car bodies. | 28th Jan 1935 | Box 125 \ 1 scan0144 | |
| Arranging the examination of Cadillac coachwork and coordinating the movement of experimental cars. | 28th Jan 1935 | Box 125 \ 1 scan0145 | |
| Comparative road test in France between a 16-cylinder Cadillac and a 20/25 HP sports saloon. | 28th Jan 1935 | Box 125 \ 1 scan0146 | |
| Report comparing the body noises and performance of a Cadillac versus a Rolls-Royce car during a test drive in France. | 28th Jan 1935 | Box 125 \ 1 scan0147 | |
| Report comparing Cadillac and French car bodies with Rolls-Royce bodies, noting defects and areas for improvement in coachbuilding. | 28th Jan 1935 | Box 125 \ 1 scan0148 | |
| Comparative analysis of door hinges, wing design, and wheel accessibility between a Rolls-Royce 21-G-IV and a Cadillac. | 28th Jan 1935 | Box 125 \ 1 scan0149 | |
| Dismantling a Cadillac for coachwork examination and arranging other vehicle tests. | 29th Jan 1935 | Box 125 \ 1 scan0150 | |
| Comparing the trial performance of a Cadillac and a 21-G-IV model in France, focusing on comfort, engine, and steering. | 29th Jan 1935 | Box 125 \ 1 scan0151 | |
| Letter from coachbuilders Park Ward & Co. Ltd. to Mr. Robotham regarding a report on a visit to France. | 30th Jan 1935 | Box 125 \ 1 scan0152 | |
| Technical explanation on the causes of troubles in coachwork due to body settling and chassis twist. | 23th Jan 1935 | Box 125 \ 1 scan0153 | |
| Comparison of American and English chassis manufacturing, focusing on rigidity and its impact on bodywork. | 23th Jan 1935 | Box 125 \ 1 scan0154 | |
| The construction of bodies and deflection of a Bentley chassis dash. | 28th Jan 1935 | Box 125 \ 1 scan0155 | |
| The findings from a test drive of a 58-HP Cadillac and a 20/25 Hooper body. | 28th Jan 1935 | Box 125 \ 1 scan0156 | |
| Various bodywork issues such as rattles, squeaks, structural weaknesses, and ventilation problems. | 28th Jan 1935 | Box 125 \ 1 scan0157 | |
| Observations on car design features and performance issues, including a Cadillac 58-HP. | 28th Jan 1935 | Box 125 \ 1 scan0158 | |
| Report page detailing the body construction, interior features, and comfort of a vehicle, with comparisons to other models. | 28th Jan 1935 | Box 125 \ 1 scan0159 | |
| Page discussing chassis strengthening points, length, and body superiority. | 29th Jan 1935 | Box 125 \ 1 scan0160 | |
| Visits to French coachbuilders detailing observations on body construction, materials, and components. | 29th Jan 1935 | Box 125 \ 1 scan0161 | |
| Visits to coachbuilders Binder's and Kelners, with observations on their construction methods and a test run of a Peugot. | 29th Jan 1935 | Box 125 \ 1 scan0162 | |
| Report from Park Ward & Co. Ltd. detailing observations from a vehicle test drive. | 30th Jan 1935 | Box 125 \ 1 scan0163 | |
| Letter comparing a 25-HP car with a Hooper Body to a Cadillac, noting differences in brakes, weight, and chassis flexibility. | 30th Jan 1935 | Box 125 \ 1 scan0164 | |
| Comparative analysis of the chassis rigidity and bodywork between a Cadillac and a Rolls-Royce. | 30th Jan 1935 | Box 125 \ 1 scan0165 | |
| Letter from Park Ward & Co. Ltd. discussing alterations to a special Bentley body and suggesting building a new body on an American chassis. | 30th Jan 1935 | Box 125 \ 1 scan0166 | |
| Comparing English and French coachbuilding techniques, specifically regarding joint construction and the 'Silent Travel' principle. | 30th Jan 1935 | Box 125 \ 1 scan0167 | |
| Page two of a letter from Park Ward & Co. Ltd. regarding a blueprint notification for coachbuilders. | 2nd Feb 1935 | Box 125 \ 1 scan0168 | |
| Letter to coachbuilder Park Ward discussing chassis stiffness, rigidity, and steel panelling. | 2nd Feb 1935 | Box 125 \ 1 scan0169 | |
| Arranging a viewing of a Cadillac body before it is stripped. | 5th Oct 1935 | Box 125 \ 1 scan0170 | |
| Visit to Park Wards to check on coachwork, chassis progress, and an experimental body. | 6th Feb 1935 | Box 125 \ 1 scan0171 | |
| Development of steering suspension and comparing Cadillac's steering gear with a Marles type for the Spectre. | 6th Feb 1935 | Box 125 \ 1 scan0172 | |
| Suspension and steering linkage development, comparing different designs including those from Mercedes Benz and Cadillac. | 6th Feb 1935 | Box 125 \ 1 scan0173 | |
| The design of a proprietary steering box compared to developments by the Marles Co. and in the U.S.A. | 6th Feb 1935 | Box 125 \ 1 scan0174 | |
| Comparing a Cadillac chassis with an RR chassis, noting frame rigidity and the petrol filler. | 11th Feb 1935 | Box 125 \ 1 scan0175 | |
| Letter from coachbuilder Park, Ward & Co proposing a joint experiment on chassis rigidity and body construction. | 11th Feb 1935 | Box 125 \ 1 scan0176 | |
| Letter from Park Ward & Co. Ltd. proposing to build a light body on an American chassis for testing and offering to contribute to the cost. | 11th Feb 1935 | Box 125 \ 1 scan0177 | |
| Graph comparing the Brake Mean Effective Pressure curves for Cadillac and Rolls-Royce products. | 13th Feb 1935 | Box 125 \ 1 scan0178 | |
| Requesting a detailed examination and documentation of a Cadillac body's construction. | 13th Feb 1935 | Box 125 \ 1 scan0179 | |
| Internal report on the examination of a Cadillac body, comparing its weight and construction to their own. | 13th Feb 1935 | Box 125 \ 1 scan0180 | |
| Comparison of Cadillac and Rolls Royce vehicles focusing on weights, chassis, frame, and body brackets. | 12th Feb 1935 | Box 125 \ 1 scan0181 | |
| Technical description of vehicle body and chassis components including brackets, dash, body, and exhaust. | 12th Feb 1935 | Box 125 \ 1 scan0182 | |
| Findings on a vehicle's exhaust, petrol tank, battery, and engine, with coachbuilders' comparisons of a Cadillac to a 40/50 HP chassis. | 14th Feb 1935 | Box 125 \ 1 scan0183 | |
| Letter to Messrs. Park, Ward & Co. Ltd. acknowledging receipt of their suggestions. | 14th Feb 1935 | Box 125 \ 1 scan0184 | |
| Critique of a report comparing a Cadillac body to Rolls Royce bodies, highlighting omissions and key differences. | 15th Feb 1935 | Box 125 \ 1 scan0185 | |
| The sheet metal construction used by Cadillac, followed by a complaint about a delayed report. | 15th Feb 1935 | Box 125 \ 1 scan0186 | |
| The Cadillac body, discussing its rigidity, weight, and suitability for production. | 27th Mar 1935 | Box 125 \ 1 scan0187 | |
| Preliminary notes comparing the weights and chassis of Cadillac and Rolls-Royce vehicles. | 21th Feb 1935 | Box 125 \ 1 scan0188 | |
| Continued report on chassis and body construction details. | 21th Feb 1935 | Box 125 \ 1 scan0189 | |
| Assessment of vehicle components and a comparison with a competing manufacturer's chassis. | 21th Feb 1935 | Box 125 \ 1 scan0190 | |
| Notes on the details of interest observed from a dismantled American body. | 21th Feb 1935 | Box 125 \ 1 scan0191 | |
| Schedule of weights comparing a 16-cylinder Cadillac with a Long 40/50 HP car of the same body type. | 21th Feb 1935 | Box 125 \ 1 scan0192 | |
| The enclosed limousine body of a 16-cylinder Cadillac. | 21th Feb 1935 | Box 125 \ 1 scan0193 | |
| Report page detailing the construction of the vehicle's doors, roof, and floor. | 21th Feb 1935 | Box 125 \ 1 scan0194 | |
| Construction of a vehicle's bodywork, including the wheel arches, wings, and mounting. | 21th Feb 1935 | Box 125 \ 1 scan0195 | |
| | | | |