| Description | Date | Identifier | |
| Body weight of experimental car 5-B-IV compared to standard models. | 1st Dec 1934 | Box 88 \ 3 scan0073 | |
| Weight comparison between a standard body and a 5-B-IV model, with an itemized list of components contributing to the extra weight. | 1st Dec 1934 | Box 88 \ 3 scan0074 | |
| Cover note for charts showing Bentley weights affected by design modifications. | 11th Dec 1934 | Box 88 \ 3 scan0075 | |
| List of weights for Bentley standard and cantilever type pedals, front axle, and rear brake components. | 10th Dec 1934 | Box 88 \ 3 scan0076 | |
| List of parts and weights for Bentley front and rear engine mountings and exhaust systems. | 10th Dec 1934 | Box 88 \ 3 scan0077 | |
| List of weights for various Bentley car components, comparing different materials and designs. | 10th Dec 1934 | Box 88 \ 3 scan0078 | |
| The types and weights of bumper bars fitted to Bentley cars. | 17th Dec 1934 | Box 88 \ 3 scan0079 | |
| Comparing the weights of a standard Bentley radiator and a lightened version. | 21th Dec 1934 | Box 88 \ 3 scan0080 | |
| Requesting the weights of a list of standard and alternative chassis parts needed for a 10,000-mile test specification. | 22th Dec 1934 | Box 88 \ 3 scan0081 | |
| Weight breakdown of the Bentley Brake Mechanism components up to the drums. | 3rd Jan 1935 | Box 88 \ 3 scan0082 | |
| List of Bentley chassis weights, detailing increases and decreases for standard and proposed parts. | 10th Jan 1935 | Box 88 \ 3 scan0083 | |
| List of weight increases in pounds and ounces for several proposed standard parts. | 10th Jan 1935 | Box 88 \ 3 scan0084 | |
| Weight summary of non-standard chassis parts for Experimental Car 5-B-IV. | 10th Jan 1935 | Box 88 \ 3 scan0085 | |
| Weight analysis of a car, detailing chassis, body, extra coachwork features, and accessories. | 10th Jan 1935 | Box 88 \ 3 scan0086 | |
| List comparing the weights of different dynamo types. | 10th Jan 1935 | Box 88 \ 3 scan0087 | |
| List of parts with their corresponding weight increases and decreases for the 5-B-IV 10,000 Miles Car. | 10th Jan 1935 | Box 88 \ 3 scan0088 | |
| Note detailing the increase in weight for a chassis. | 10th Jan 1935 | Box 88 \ 3 scan0089 | |
| Table listing the weights of various Bentley chassis components in pounds and ounces. | 15th Jan 1935 | Box 88 \ 3 scan0090 | |
| Weight list for vehicle components in pounds and ounces. | 15th Jan 1935 | Box 88 \ 3 scan0091 | |
| Weight schedule for various Bentley chassis components. | 15th Jan 1935 | Box 88 \ 3 scan0092 | |
| List of vehicle component weights in pounds and ounces. | 15th Jan 1935 | Box 88 \ 3 scan0093 | |
| List of vehicle components with corresponding weights in pounds and ounces. | 15th Jan 1935 | Box 88 \ 3 scan0094 | |
| Analysis of weight increases in the standard Bentley Saloon compared to the original 1934 model. | 16th Jan 1935 | Box 88 \ 3 scan0095 | |
| The increase in Bentley Coachwork and Accessories weight between March and November 1934. | 16th Jan 1935 | Box 88 \ 3 scan0096 | |
| Calculation of weight alterations for a Bentley Chassis, itemizing increases and decreases of standardized parts. | 16th Jan 1935 | Box 88 \ 3 scan0097 | |
| List of weight increases and decreases for Bentley chassis parts proposed for standardization during 1935. | 16th Jan 1935 | Box 88 \ 3 scan0098 | |
| Comparison of three different radiator matrix specifications, detailing their frontal area, weight, water capacity, and total weight savings. | 19th Jan 1935 | Box 88 \ 3 scan0099 | |
| Specification document detailing the weight, length, and diameter of a Graham Propellor Shaft. | 22th Jan 1935 | Box 88 \ 3 scan0100 | |
| Table comparing the weights of different Bentley radiator configurations and components. | 22th Jan 1935 | Box 88 \ 3 scan0101 | |
| Strategies for reducing the weight of Bentley cars to improve performance and handling. | 1st Feb 1935 | Box 88 \ 3 scan0102 | |
| Vehicle weight reduction through material substitution and redesign, comparing a Bentley to a Pontiac. | 1st Feb 1935 | Box 88 \ 3 scan0103 | |
| Experimental weight reduction and design improvements for springs, exhaust, battery, and radiator. | 1st Feb 1935 | Box 88 \ 3 scan0104 | |
| Comparison table of weights for different Bentley radiator configurations. | 3rd Jan 1935 | Box 88 \ 3 scan0105 | |
| Breakdown of the weight of Bentley brake mechanism components, separated by foot and hand brake systems. | 3rd Jan 1935 | Box 88 \ 3 scan0106 | |
| Table outlining anticipated weight savings for various vehicle parts. | 1st Feb 1935 | Box 88 \ 3 scan0107 | |
| Table detailing anticipated weight savings for various vehicle components, along with corresponding remarks. | 1st Feb 1935 | Box 88 \ 3 scan0108 | |
| Design considerations and weight reduction opportunities for various vehicle components. | 1st Feb 1935 | Box 88 \ 3 scan0109 | |
| Potential weight-saving measures on various car components. | 1st Feb 1935 | Box 88 \ 3 scan0110 | |
| Comparison table of individual chassis component weights between a Bentley and a Pontiac. | 5th Feb 1935 | Box 88 \ 3 scan0111 | |
| Methods for reducing the weight of the Bentley chassis. | 5th Feb 1935 | Box 88 \ 3 scan0112 | |
| Potential weight reductions and performance improvements for various vehicle components. | 5th Feb 1935 | Box 88 \ 3 scan0113 | |
| Potential weight reduction strategies and material comparisons for various car components. | 5th Feb 1936 | Box 88 \ 3 scan0114 | |
| Instruction to prepare a pair of Bentley front hubs for chassis 5-B-IV, with approval from Rudge-Whitworth's. | 5th Feb 1935 | Box 88 \ 3 scan0115 | |
| Request to build a lightened Bentley radiator with specified components. | 13th Feb 1935 | Box 88 \ 3 scan0116 | |
| Weight reduction modifications for Bentley Intake and Exhaust systems for a 15,000-mile run in France. | 22th Feb 1935 | Box 88 \ 3 scan0117 | |
| Proposed hub cap modification with brass inserts to prevent galling, noting the significant weight increase. | 1st Mar 1935 | Box 88 \ 3 scan0118 | |
| And trying to resolve discrepancies in the recorded weights of various Bentley chassis. | 2nd Mar 1935 | Box 88 \ 3 scan0119 | |
| Page 2 of a memo discussing an investigation into chassis weight increases and absolving the Coachbuilder from blame. | 1st Mar 1935 | Box 88 \ 3 scan0120 | |
| Analysing and comparing vehicle component weights from Terraplane, Pontiac and Bentley models to identify potential savings. | 4th Mar 1935 | Box 88 \ 3 scan0121 | |
| Detailed comparison of a standardised Bentley Saloon body against several American car bodies. | 4th Mar 1935 | Box 88 \ 3 scan0122 | |
| Comparison of body and chassis weights for various American and Bentley cars. | 4th Mar 1935 | Box 88 \ 3 scan0123 | |
| List of weights for individual components of a Pontiac and a R.R. Standard Saloon. | 4th Mar 1935 | Box 88 \ 3 scan0124 | |
| List of component weights for Graham-Paige and Terraplane bodies. | 4th Mar 1935 | Box 88 \ 3 scan0125 | |
| Comparison of component weights between Bentley, Pontiac, and Essex Terraplane vehicles. | 4th Mar 1935 | Box 88 \ 3 scan0126 | |
| Variations and increasing weight of different series of Bentley chassis. | 4th Mar 1935 | Box 88 \ 3 scan0127 | |
| Breakdown of Bentley 'D' Series chassis weights and modifications. | 3rd Mar 1935 | Box 88 \ 3 scan0128 | |
| Bentley chassis weights, comparing the 'D' series with the 'A' series and discussing weight-saving measures. | 3rd Mar 1935 | Box 88 \ 3 scan0129 | |
| List detailing the weight increase of 'D' series Bentleys over 'A' series, broken down by component. | 1st Mar 1935 | Box 88 \ 3 scan0130 | |
| Comparing the weights of frame components for Bentley and Essex models. | 8th Mar 1935 | Box 88 \ 3 scan0131 | |
| Comparative analysis of wheel, tyre weights, and ground clearance for Bentley, Buick, Graham, and Essex vehicles. | 14th Mar 1935 | Box 88 \ 3 scan0132 | |
| List of weights for various Bentley chassis components. | 15th Mar 1935 | Box 88 \ 3 scan0133 | |
| Car weight reduction by using smaller wheels and tyres, comparing to American practices. | 19th Mar 1935 | Box 88 \ 3 scan0134 | |
| Comparative table of wheel and tyre weights and ground clearances for several car models. | 14th Mar 1935 | Box 88 \ 3 scan0135 | |
| Comparison of wheel and tyre weights in pounds for various car models and sizes. | 19th Mar 1935 | Box 88 \ 3 scan0136 | |
| Weight comparison of two different types of crankshafts. | 22th Mar 1935 | Box 88 \ 3 scan0137 | |
| Table of revised matrix weights and specifications. | 25th Mar 1935 | Box 88 \ 3 scan0138 | |
| Comparative analysis of petrol tank weights for various cars, noting that their own are unnecessarily heavy. | 25th Mar 1935 | Box 88 \ 3 scan0139 | |
| List of body weights for insulation materials added to a standard Bentley car. | 29th Mar 1935 | Box 88 \ 3 scan0140 | |
| Modifications and weight savings for the 'Petrol System - 5-B-IV'. | 29th Mar 1935 | Box 88 \ 3 scan0141 | |
| Request for detailed weight and dimensional specifications of a car body and its accessories. | 30th Mar 1935 | Box 88 \ 3 scan0142 | |
| Weights of radiator and engine crossmember components for the S. B. IV. | 1st Apr 1935 | Box 88 \ 3 scan0143 | |
| The results of an effort to reduce the weight of a Bentley chassis by fitting experimentally lightened parts. | 2nd Apr 1935 | Box 88 \ 3 scan0144 | |
| Progress report on design considerations and weight-saving measures for various vehicle components. | 2nd Apr 1935 | Box 88 \ 3 scan0145 | |
| Weight and performance issues related to the flywheel, clutch, propeller shaft, and brake system. | 2nd Apr 1935 | Box 88 \ 3 scan0146 | |
| Table outlining anticipated weight savings for various vehicle components. | 1st Feb 1935 | Box 88 \ 3 scan0147 | |
| Table detailing anticipated weight savings for various vehicle components and associated remarks. | 2nd Apr 1935 | Box 88 \ 3 scan0148 | |
| Analysis of weight changes for 10,000 miles Bentley parts, detailing increases and decreases in lbs and ozs. | 2nd Apr 1935 | Box 88 \ 3 scan0149 | |
| Weight comparison table for various car parts, showing standard vs new weights and the resulting changes. | 2nd Apr 1935 | Box 88 \ 3 scan0150 | |
| New make and break lever design from the Delco Company and a request for a weight comparison. | 4th Apr 1935 | Box 88 \ 3 scan0151 | |
| Weight comparison of standard and lightened parts fitted on a Bentley 5 B 1V, detailing weight reductions. | 5th Apr 1935 | Box 88 \ 3 scan0152 | |
| Specification sheet detailing the weight comparisons of various vehicle components. | 5th Apr 1935 | Box 88 \ 3 scan0153 | |
| Weight reduction analysis comparing standard and lightened automotive components. | 5th Apr 1935 | Box 88 \ 3 scan0154 | |
| List of weights for front/rear road springs and front axle/brake assemblies. | 5th Apr 1935 | Box 88 \ 3 scan0155 | |
| Construction and weight of a 'Paris Trials Car' and proposing a trial of a lighter, pillarless Saloon version. | 6th Apr 1935 | Box 88 \ 3 scan0156 | |
| And reconciling weight discrepancies for chassis B-1-CW by comparing it to 'C' series cars. | 6th Apr 1935 | Box 88 \ 3 scan0157 | |
| Letter to supplier John Marston Ltd. regarding the weight comparison and variation of a special Bentley matrix. | 4th Apr 1935 | Box 88 \ 3 scan0158 | |
| Comparison of particulars for Marston's Special Matrix and an American Harrison Vee product. | 4th Apr 1935 | Box 88 \ 3 scan0159 | |
| Submission, approval, and production stages for Bentley sheet metal floorboards. | 5th Apr 1935 | Box 88 \ 3 scan0160 | |
| Table detailing revised matrix weights, areas, depths and volumes for various models. | 16th Apr 1935 | Box 88 \ 3 scan0161 | |
| List of weights for various car models, including Hotchkiss and Standard Saloon. | 24th Apr 1935 | Box 88 \ 3 scan0162 | |
| Weights of piston components for the 3.500 ball engine. | 2nd May 1935 | Box 88 \ 3 scan0163 | |
| Comparing the weights of V.8 Ford and Bentley rear axle and propeller shaft assemblies. | 24th May 1935 | Box 88 \ 3 scan0164 | |
| Weight discrepancy in the noise insulation scheme for a Bentley. | 27th Jun 1935 | Box 88 \ 3 scan0165 | |
| Weight comparison of a present and proposed abbreviated insulation scheme on a Bentley. | 27th Jun 1935 | Box 88 \ 3 scan0166 | |
| Comparison of weights for different Bentley steering systems. | 2nd Jul 1935 | Box 88 \ 3 scan0167 | |
| Comparison of steering system weights for a Bentley chassis. | 2nd Jul 1935 | Box 88 \ 3 scan0168 | |
| Weights of Bentley chassis for the last and present quarters. | 4th Jul 1935 | Box 88 \ 3 scan0169 | |
| Weight comparison table for 4 1/2 litre engine parts made from Electron versus Aluminium. | 7th Aug 1935 | Box 88 \ 3 scan0170 | |
| Weight analysis comparing aluminium and cast iron constructions for a 6-cylinder car engine. | 7th Aug 1935 | Box 88 \ 3 scan0171 | |
| Engine design considerations, including component variations and weight analysis. | 7th Aug 1935 | Box 88 \ 3 scan0172 | |
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