| Description | Date | Identifier | |
| Illustrating a front axle and suspension modification. | 17th Jan 1934 | Box 173 \ 1 img042 | |
| Road trial and issues with independent front springing on a Phantom car. | 15th Jan 1934 | Box 173 \ 1 img043 | |
| Telegram received by telephone from Indianapolis. | 4th Nov 1941 | Box 173 \ 1 img044 | |
| Telegram to N.L.T. Robotham in Detroit regarding a type-test on valves. | 18th Jan 1934 | Box 173 \ 1 img045 | |
| Content of three cables received from the USA concerning engine parts and testing. | 18th Jan 1934 | Box 173 \ 1 img046 | |
| Letter detailing a fire in the Experimental Shop and progress updates on Goshawk and P.V. engine type tests. | 19th Jan 1934 | Box 173 \ 1 img047 | |
| The results of tests on various types of bearings, including composite and solid lead bronze. | 19th Jan 1934 | Box 173 \ 1 img048 | |
| Project update letter regarding independent wheel springing, various car and engine tests, and a potential deal with General Motors. | 19th Jan 1934 | Box 173 \ 1 img049 | |
| The concluding page of a letter regarding the Vulture car. | 12th Jul 1941 | Box 173 \ 1 img050 | |
| Cablegram from Coverley to Hives confirming arrival in Indianapolis and delivery of test equipment to Allisons. | 12th Jul 1941 | Box 173 \ 1 img051 | |
| Cablegram from Indianapolis to Derby regarding bearing tests, oil feed recommendations, and material composition. | 19th Jan 1942 | Box 173 \ 1 img052 | |
| Investigation of American independent front wheel suspension and the purchase of a complete car for analysis. | 19th Jan 1934 | Box 173 \ 1 img053 | |
| Cable from the U.S.A. concerning bearing tests and material mixtures. | 20th Jan 1934 | Box 173 \ 1 img054 | |
| Cablegram detailing a bearing issue and the corresponding overspeed test parameters. | 28th Jan 1942 | Box 173 \ 1 img055 | |
| Telegram message instructing the dispatch of a complete 3.5 Litre Bentley Saloon. | 20th Jan 1934 | Box 173 \ 1 img056 | |
| Night letter telegram inquiring about Curtiss's use of balance weights and overspeed test procedures. | 22th Jan 1934 | Box 173 \ 1 img057 | |
| Relaying a cable message about testing procedures for bearing trouble. | 22th Jan 1934 | Box 173 \ 1 img058 | |
| Telegram received by telephone concerning a delay in tests pending equipment. | 23th Jan 1934 | Box 173 \ 1 img059 | |
| Telegram received by telephone concerning an Anthony axle. | 23th Jan 1934 | Box 173 \ 1 img060 | |
| Night letter cable to Robotham at the Athletic Club in Detroit from Hives. | 23th Jan 1934 | Box 173 \ 1 img061 | |
| Western Union cablegram requesting a complete set of Bentley valve springs be sent to Olley in Detroit. | 24th Jan 1922 | Box 173 \ 1 img062 | |
| Three cables received from the U.S.A. concerning Bentley parts. | 23th Jan 1934 | Box 173 \ 1 img063 | |
| Whether to bring a 12-cylinder car to America and a road test report of the 'Vulture' model. | 23th Jan 1934 | Box 173 \ 1 img064 | |
| Independent front wheel springing and the dispatch of 12 Bentley Valve Springs to Cadillac in the USA. | 23th Jan 1934 | Box 173 \ 1 img065 | |
| Cablegram from Robotham to Hives requesting particulars of a Bentley axle thrust race. | 23th Sep 1940 | Box 173 \ 1 img066 | |
| Cablegram from Coverley advising of a delay to tests due to a setback with bearings test equipment. | 23th Sep 1940 | Box 173 \ 1 img067 | |
| Report from a New York car show with observations on General Motors' and Chrysler's new models, focusing on front suspension design. | 10th Jan 1934 | Box 173 \ 1 img068 | |
| Technical memorandum comparing suspension, steering and chassis details from Cadillac, Chevrolet, LaSalle and Chrysler. | 10th Jan 1934 | Box 173 \ 1 img069 | |
| Outlining an upcoming travel itinerary to various companies and instructions for correspondence. | 10th Jan 1934 | Box 173 \ 1 img070 | |
| New York Motor Show, Chrysler's 'Air Flow Car', and meetings with Curtiss Wright regarding engine valve issues. | 13th Jan 1933 | Box 173 \ 1 img071 | |
| Summary of test results concerning engine valve issues, particularly lead attack, and notes on bearings. | 15th Jan 1934 | Box 173 \ 1 img072 | |
| Engine bearing failures and test conditions for the Conqueror engine. | 15th Jan 1934 | Box 173 \ 1 img073 | |
| Mostly blank telegram form received by telephone from Indianapolis. | 1st Dec 1930 | Box 173 \ 1 img074 | |
| Telegram received by telephone form with brief handwritten entries. | 23th Jan 1934 | Box 173 \ 1 img075 | |
| Telegram received by telephone regarding the delay of tests until the weekend. | 23th Jan 1934 | Box 173 \ 1 img076 | |
| Resume of Curtiss Wrights' progress on their Conqueror water-cooled engine. | 15th Jan 1934 | Box 173 \ 1 img077 | |
| Page detailing engine component specifications and performance test results for Cyclone and Conqueror engines. | 15th Jan 1934 | Box 173 \ 1 img078 | |
| Competitor engine cooling technologies and aircraft performance. | 15th Jan 1934 | Box 173 \ 1 img079 | |
| Road testing a Bentley suspension for American conditions, noting issues with body rattles and contrasting road types. | 15th Jan 1934 | Box 173 \ 1 img080 | |
| Improving the suspension and ride quality of a Bentley vehicle. | 15th Jan 1934 | Box 173 \ 1 img081 | |
| Engine starting issues, oil mixtures for cold weather, and silencer corrosion on the Phantom model due to leaded fuel. | 15th Jan 1934 | Box 173 \ 1 img082 | |
| The continued operation of the Springfield location with a skeleton staff. | 19th Jan 1934 | Box 173 \ 1 img083 | |
| Night letter telegram regarding independent wheel springing and patent information. | 19th Jan 1934 | Box 173 \ 1 img084 | |
| Night letter telegram from Hives to Robotham about an offer to exchange cars. | 22th Jan 1934 | Box 173 \ 1 img085 | |
| Night letter telegram inquiring about the balance weights used by Curtiss due to bearing trouble. | 22th Jan 1934 | Box 173 \ 1 img086 | |
| Cable advice confirming a cablegram has been forwarded to a new address in Detroit. | 24th Jan 1934 | Box 173 \ 1 img087 | |
| Cablegram from Robotham in Detroit regarding a fourth valve spring failure. | 4th Jun 1924 | Box 173 \ 1 img088 | |
| Cablegram from Detroit concerning experience with Curtis lead bronze, semi-balanced crankshafts, and bearings. | 24th Jan 1934 | Box 173 \ 1 img089 | |
| Telegram received by telephone regarding the failure of a fourth valve spring. | 24th Jan 1934 | Box 173 \ 1 img090 | |
| Telegram received by telephone regarding experience with semi-balanced crankshafts and Kestrel step bearings. | 24th Jan 1934 | Box 173 \ 1 img091 | |
| Telegram message with instructions to modify a centre bearing to improve lubrication. | 24th Jan 1934 | Box 173 \ 1 img092 | |
| Forwarding a cable received from AHD regarding Kestrel engine bearings. | 24th Jan 1934 | Box 173 \ 1 img093 | |
| Night letter cable to Detroit regarding a delay on independent wheel springing pending patent information. | 24th Jan 1934 | Box 173 \ 1 img094 | |
| Continuation of a telex message concerning an offer for the exchange of valve springs. | 24th Jan 1934 | Box 173 \ 1 img095 | |
| Bentley Pinion Thrust Race failures, cylinder head performance, and a note on the Vulture car. | 24th Jan 1934 | Box 173 \ 1 img096 | |
| Note on a discovery regarding clutch slip and the heat properties of Ferodo's lining. | 24th Jan 1934 | Box 173 \ 1 img097 | |
| Letter discussing engine issues like valve burning, corrosion, and detonation in relation to leaded fuel, comparing notes with Curtiss Wright. | 25th Jan 1934 | Box 173 \ 1 img098 | |
| Technical memorandum discussing Ethylene Glycol cooling, Lead Bronze bearings, and valve performance. | 25th Jan 1934 | Box 173 \ 1 img099 | |
| To Cadillac discussing alterations, performance issues, and specifications of an independent suspension system on test vehicle 27-EX. | 25th Jan 1934 | Box 173 \ 1 img100 | |
| Steering road shocks, geometry, and comparing design elements with Cadillac vehicles. | 25th Jan 1934 | Box 173 \ 1 img101 | |
| Trip to the U.S.A., detailing observations from the New York Motor Show and a visit to Curtiss Wright Corp. | 26th Jan 1934 | Box 173 \ 1 img102 | |
| Valve seat materials, lead attack, and engine cooling methods for air and water-cooled engines. | 25th Jan 1934 | Box 173 \ 1 img103 | |
| Engine component testing, including cylinder and bearing performance, and fuel types. | 26th Jan 1934 | Box 173 \ 1 img104 | |
| Engine bearing failures, their causes, and the material composition of the bearings. | 20th Jan 1934 | Box 173 \ 1 img105 | |
| Adapting a Bentley's suspension for American road conditions. | 25th Jan 1934 | Box 173 \ 1 img106 | |
| Vehicle starting issues, oil mixtures for cold weather, leaded fuel problems, and the status of the Springfield facility. | 25th Jan 1934 | Box 173 \ 1 img107 | |
| Report from the U.S.A. detailing observations on competitor vehicles from General Motors, Chrysler, and Chevrolet. | 26th Jan 1934 | Box 173 \ 1 img108 | |
| Technical analysis of wheel wobble, suspension characteristics, and spring deflection, with comparisons to Cadillac. | 26th Jan 1934 | Box 173 \ 1 img109 | |
| Suspension systems, tyre treads, and competitor designs from G.M. and Chrysler. | 26th Jan 1936 | Box 173 \ 1 img110 | |
| Competitor vehicle designs and a question about improving suspension geometry. | 26th Jan 1934 | Box 173 \ 1 img111 | |
| Automatic tappet trouble on the Vulture engine, theorizing valve bounce as the cause and requesting information on Cadillac's experience. | 26th Jan 1934 | Box 173 \ 1 img112 | |
| Letter discussing engine type tests, component failures, shop layout, and bearing performance. | 26th Jan 1934 | Box 173 \ 1 img113 | |
| Letter requesting information on the Curtiss Conqueror engine's oiling system and potential purchase of oil coolers. | 26th Jan 1934 | Box 173 \ 1 img114 | |
| Letter discussing various vehicle development topics including suspension, frame stiffness, carburettors, and brakes. | 26th Jan 1934 | Box 173 \ 1 img115 | |
| Page 2 of a letter discussing Cadillac's move, smoothness, and a potential car purchase arrangement. | 26th Jan 1934 | Box 173 \ 1 img116 | |
| The body and features of a Chrysler Airflow car. | 26th Jan 1934 | Box 173 \ 1 img117 | |
| Description of the ride stabilizer's function, accompanied by a photograph of the rear axle. | 26th Jan 1934 | Box 173 \ 1 img118 | |
| Illustration showing a cutaway view of a car's body and chassis structure. | 26th Jan 1934 | Box 173 \ 1 img119 | |
| Diagram and description of the Center-Control Steering improvement for Knee-Action Wheels. | 26th Jan 1934 | Box 173 \ 1 img120 | |
| Image with a caption describing the rear of a two-door sedan. | 26th Jan 1934 | Box 173 \ 1 img121 | |
| Diagram illustrating the weight distribution for the 'Floating Ride' concept in an Airflow Chrysler. | 26th Jan 1934 | Box 173 \ 1 img122 | |
| Technical review of the 1934 La Salle car, detailing its independent front wheels, engine, and aluminum pistons. | 26th Jan 1934 | Box 173 \ 1 img123 | |
| Magazine article detailing the body construction, suspension, and features of a new De Soto model. | 26th Jan 1934 | Box 173 \ 1 img124 | |
| Technical review of improvements to Cadillac V-8, V-12, and V-16 models, focusing on the 'Knee Action' suspension and cold air intake. | 26th Jan 1934 | Box 173 \ 1 img125 | |
| Worm's-eye view of the front suspension and steering assembly, using a mirror for clarity. | 1st Jan 1934 | Box 173 \ 1 img126 | |
| Technical page illustrating and describing independent wheel suspension systems from Hudson-Terraplane and Buick. | 1st Jan 1934 | Box 173 \ 1 img127 | |
| Relaying a cable from the U.S.A. regarding a critical parts supply issue for Chryslers. | 29th Jan 1934 | Box 173 \ 1 img128 | |
| Vehicle performance during American winter blizzard conditions. | 17th Jan 1934 | Box 173 \ 1 img129 | |
| Report detailing an instance of front brakes seizing due to ice formation from melting snow. | 29th Jan 1934 | Box 173 \ 1 img130 | |
| Telegram received by telephone regarding the ride quality of a Chrysler forward engine compared to a Cadillac. | 29th Jan 1934 | Box 173 \ 1 img131 | |
| Telegram message received by telephone regarding testing and negotiations with Cadillac. | 10th Mar 1933 | Box 173 \ 1 img132 | |
| Message recorded on a 'Telegram Received by Telephone' form. | 10th Mar 1933 | Box 173 \ 1 img133 | |
| Letter on Hotel Syracuse letterhead discussing car issues in snowy conditions and travel arrangements. | 10th Mar 1933 | Box 173 \ 1 img134 | |
| Travel plans across the USA and instructions for mail forwarding. | 18th Jan 1934 | Box 173 \ 1 img135 | |
| Letter discussing valve test reports, a theory on valve failure due to lead, and recommendations for exhaust valves. | 18th Jan 1934 | Box 173 \ 1 img136 | |
| Cablegram from Detroit comparing suspension characteristics with Chrysler and Cadillac and discussing negotiations for parts. | 29th Jan 1934 | Box 173 \ 1 img137 | |
| Cablegram regarding a delay to a bearing test until after Wednesday. | 30th Jan 1935 | Box 173 \ 1 img138 | |
| Steering wheel comfort in relation to the DeSoto, Chrysler's engine positioning, and preliminary tests on the Vulture car. | 29th Jan 1934 | Box 173 \ 1 img139 | |
| Partially filled form for a telegram received by telephone. | 30th Jan 1934 | Box 173 \ 1 img140 | |
| Telegram received by telephone form with handwritten entries. | 30th Jan 1940 | Box 173 \ 1 img141 | |
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