| Description | Date | Identifier | |
| Letter to coachbuilder Park Ward & Co. Ltd. suggesting modifications to a 4-Door Saloon body design. | 19th Sep 1938 | Box 111 \ 1 scan0141 | |
| Postscript comparing two design drawings, expressing a preference and noting upcoming modifications. | 22th Sep 1938 | Box 111 \ 1 scan0142 | |
| Request to order a sheet of rubber and canvas for testing on a B.30 car for body mounting purposes. | 22th Sep 1938 | Box 111 \ 1 scan0143 | |
| Confirming the approval of invoices from Messrs. Park Ward & Co. | 30th Sep 1938 | Box 111 \ 1 scan0144 | |
| Letter to Park Ward & Co. Ltd. confirming design changes and future points for a car body. | 30th Sep 1938 | Box 111 \ 1 scan0145 | |
| Page discussing test results and recommendations for the screen opening gear. | 10th Oct 1938 | Box 111 \ 1 scan0146 | |
| Confidential letter to Messrs. Park Ward & Co. Ltd. confirming specifications for a Bentley Chassis 2.B.50 body. | 10th Oct 1938 | Box 111 \ 1 scan0147 | |
| Letter detailing chassis and body modifications regarding battery position and propeller shaft clearance. | 11th Oct 1938 | Box 111 \ 1 scan0148 | |
| Confirming a list of accessories for car model 2.B.50 which are not supplied with the body. | 11th Oct 1938 | Box 111 \ 1 scan0149 | |
| Letter to Messrs. Park Ward & Co. Ltd. regarding the body specification for a Bentley Chassis. | 12th Oct 1938 | Box 111 \ 1 scan0150 | |
| Coachwork specification for a Four Door Four Light Saloon on a Long Wheelbase Bentley chassis. | 12th Oct 1938 | Box 111 \ 1 scan0151 | |
| Specification details for a car's interior and exterior components. | 12th Oct 1938 | Box 111 \ 1 scan0152 | |
| Specification list for various vehicle components, including bodywork, lighting, and interior fittings. | 12th Oct 1938 | Box 111 \ 1 scan0153 | |
| Specification sheet detailing tool storage, pocket type, finishing instructions, and weight limits for vehicle coachwork. | 20th Oct 1938 | Box 111 \ 1 scan0154 | |
| Letter to Messrs. Park Ward & Co. Ltd. confirming details for a Bentley 2.B.50 regarding tools and a defroster. | 20th Oct 1938 | Box 111 \ 1 scan0155 | |
| Letter from the Chief Engineer regarding diagonal stays, delivery, and alterations for a vehicle body. | 25th Oct 1938 | Box 111 \ 1 scan0156 | |
| Supply difficulty with sorbo rubber tool holders. | 25th Oct 1938 | Box 111 \ 1 scan0157 | |
| Letter to Park Ward & Co. Ltd. regarding design specifications for a Bentley 2.B.50, discussing glass, hinges, and screen flap issues. | 27th Oct 1938 | Box 111 \ 1 scan0158 | |
| Letter to coachbuilder Park Ward & Co. Ltd. finalising the design for Four-Light and Six-Light bodies for the Bentley 50, and requesting a mock-up. | 28th Oct 1938 | Box 111 \ 1 scan0159 | |
| Letter to Park Ward & Co. Ltd. confirming remarks about a mock-up for B.50 bodies. | 4th Nov 1938 | Box 111 \ 1 scan0160 | |
| Letter to coachbuilder Park Ward & Co. Ltd. confirming observations on a Bentley 2.B.50 body, including colour, design, and delivery schedule. | 4th Nov 1938 | Box 111 \ 1 scan0161 | |
| Letter to Park Ward & Co. Ltd. detailing the paint and interior finish for chassis 2.B.50. | 7th Nov 1938 | Box 111 \ 1 scan0162 | |
| Scheme for modified rear body brackets for the wheel arch of a Bentley 50. | 7th Sep 1938 | Box 111 \ 1 scan0163 | |
| The dispatch of prints PD.279 and PD.280, for the 6-light and 4-light Saloon B.50 bodies, to Messrs. Park Ward for the mock-up. | 9th Nov 1938 | Box 111 \ 1 scan0164 | |
| Confirming a design for body 3.B.50 has been instructed and is being sent for filing. | 10th Nov 1938 | Box 111 \ 1 scan0165 | |
| Sending prints PD.279 and PD.280 for B.50 Saloon bodies to Park Ward for a mock-up. | 10th Nov 1938 | Box 111 \ 1 scan0166 | |
| Letter to Park Ward & Co. Ltd. regarding the colour scheme and wheels for a car body. | 15th Nov 1938 | Box 111 \ 1 scan0167 | |
| Letter to coachbuilder Park Ward & Co. Ltd. regarding design changes to the 'B.50' car body mock-up. | 15th Nov 1938 | Box 111 \ 1 scan0168 | |
| Confidential letter to Messrs. Park Ward & Co. Ltd. concerning experimental proofs and costs for the B.50 body. | 15th Nov 1938 | Box 111 \ 1 scan0169 | |
| Production experiment for wings and doors, including costs, processes, and labour considerations. | 15th Nov 1938 | Box 111 \ 1 scan0170 | |
| Letter to Park Ward & Co. Ltd. regarding the unexpectedly high cost for a B.50 car mock-up and clarifying the required specifications. | 15th Nov 1938 | Box 111 \ 1 scan0171 | |
| Letter to Park Ward & Co. Ltd. regarding the production of a front apron for B.50 and B.5 cars. | 16th Nov 1938 | Box 111 \ 1 scan0172 | |
| Letter to a coachbuilder regarding the fitment of an illuminated screen mirror with an electric clock to a chassis. | 16th Nov 1938 | Box 111 \ 1 scan0173 | |
| Replacement of body brackets and Floatex mountings for the Bentley 50. | 21th Nov 1938 | Box 111 \ 1 scan0174 | |
| Letter to Park Ward & Co. Ltd. discussing the headroom and mock-up for the styling of the B.50 car. | 25th Nov 1938 | Box 111 \ 1 scan0175 | |
| Letter to Park Ward & Co. Ltd. specifying the paint colour for pressed steel wheels and mentioning potential future wheel discs. | 25th Nov 1938 | Box 111 \ 1 scan0176 | |
| Confidential letter to Messrs. Park Ward & Co. Ltd. discussing the costs and options for painting wheels and discs. | 28th Nov 1938 | Box 111 \ 1 scan0177 | |
| Design, materials, and painting method for pressed steel wheels and discs on the B.50 model. | 6th Dec 1938 | Box 111 \ 1 scan0178 | |
| Letter to Park Ward & Co. Ltd. regarding specifications for cushions, air duct, tool storage, and clock mirror placement. | 6th Dec 1938 | Box 111 \ 1 scan0179 | |
| Confidential letter to Messrs. Park Ward & Co. Ltd. arranging delivery of chassis 2.B.50 and noting the requirement for an air conditioner. | 13th Dec 1938 | Box 111 \ 1 scan0180 | |
| Confidential letter to Messrs Park Ward & Co.Ltd. requesting a drawing of the dashboard contour for chassis 2.B.50. | 14th Dec 1938 | Box 111 \ 1 scan0181 | |
| Letter from coachbuilder Park Ward & Co. Ltd. concerning unsatisfactory ventilators and delaying an order. | 16th Dec 1938 | Box 111 \ 1 scan0182 | |
| Requesting the despatch of 3 rubber containers to Messrs. Park Ward. | 19th Dec 1938 | Box 111 \ 1 scan0183 | |
| Letter to Messrs. Park Ward & Co. Ltd. regarding the despatch of rubber containers for tools. | 19th Dec 1938 | Box 111 \ 1 scan0184 | |
| Letter to coachbuilder Park Ward & Co. Ltd. regarding the fitting of different types of ventilators to specific car bodies. | 20th Dec 1938 | Box 111 \ 1 scan0185 | |
| Letter to Messrs. Park Ward & Co. Ltd. confirming the completion date for Chassis 2.B.50. | 22th Dec 1938 | Box 111 \ 1 scan0186 | |
| The despatch of a Ceapak and an experimental chassis to Messrs. Park Wards. | 23th Dec 1938 | Box 111 \ 1 scan0187 | |
| Letter from the Experimental Department to Messrs. Park Ward & Co. Ltd. confirming the dispatch of a 'Seapak'. | 23th Dec 1938 | Box 111 \ 1 scan0188 | |
| Dispatch of transverse stays and bolts for head lamp sockets to Park Ward for an experimental chassis. | 29th Dec 1938 | Box 111 \ 1 scan0189 | |
| Letter to Park Ward & Co. Ltd. regarding the dispatch of parts for a 2.B.50. body. | 29th Dec 1938 | Box 111 \ 1 scan0190 | |
| Letter from coachbuilder Park Ward acknowledging the dispatch of transverse stays and bolts. | 2nd Jan 1939 | Box 111 \ 1 scan0191 | |
| Letter from the Experimental Department regarding the dispatch of two body brackets to Messrs. Park Ward & Co. Ltd. | 4th Jan 1939 | Box 111 \ 1 scan0192 | |
| Sending 2 body brackets to Messrs. Park Ward for an experimental chassis. | 4th Jan 1939 | Box 111 \ 1 scan0193 | |
| Letter from coachbuilders Park Ward & Co Ltd acknowledging the dispatch of two body brackets with bolts. | 5th Jan 1939 | Box 111 \ 1 scan0194 | |
| Letter to coachbuilder Park Ward & Co. Ltd. regarding the mock-up of a B.50 body. | 7th Jan 1939 | Box 111 \ 1 scan0195 | |
| Letter to Messrs. Park Ward & Co. Ltd. confirming a new delivery date for chassis 2.B.50. | 7th Jan 1939 | Box 111 \ 1 scan0196 | |
| Letter to Park Ward & Co. Ltd. enclosing a print for wing stays, headlamps, and horns for B.50 cars. | 12th Jan 1939 | Box 111 \ 1 scan0197 | |
| A report on fitting a bonnet to a chassis, requesting drawings be checked and modified. | 16th Jan 1939 | Box 111 \ 1 scan0198 | |
| Letter to Park Ward & Co.Ltd regarding sending an electrician to wire up chassis parts on 2.B.50. | 17th Jan 1939 | Box 111 \ 1 scan0199 | |
| Letter to Park Ward & Co.Ltd. regarding the despatch of a front bumper for painting and fitting to car 2.B.50. | 17th Jan 1939 | Box 111 \ 1 scan0200 | |
| The despatch of a front bumper to Messrs. Park Ward & Co for chassis 2.B.50. | 17th Jan 1939 | Box 111 \ 1 scan0201 | |
| Letter from coachbuilder Park Ward arranging for an electrician to visit their works to inspect a chassis wiring. | 18th Jan 1939 | Box 111 \ 1 scan0202 | |
| Letter from Park Ward & Co Ltd confirming receipt of a letter about the dispatch of a front bumper. | 18th Jan 1939 | Box 111 \ 1 scan0203 | |
| Confidential letter to coachbuilder Park Ward & Co. Limited detailing modifications for the B.50 mock-up. | 31th Jan 1939 | Box 111 \ 1 scan0204 | |
| List of requested modifications and criticisms for a car body, detailing changes for both six and four light body styles. | 31th Jan 1939 | Box 111 \ 1 scan0205 | |
| The final page of a typed document from the Chief Engineer of the Chassis department. | 2nd Feb 1939 | Box 111 \ 1 scan0206 | |
| Requesting settlement of an account as per an attached invoice. | 2nd Feb 1939 | Box 111 \ 1 scan0207 | |
| Letter from a coachbuilder regarding an advance of funds to an electrician for an extended stay and enclosing the related invoice. | 1st Feb 1939 | Box 111 \ 1 scan0208 | |
| Confirming an invoice from Park Ward & Co. Ltd. for petrol for a Bentley chassis. | 2nd Feb 1939 | Box 111 \ 1 scan0209 | |
| Request for an official order for 18 gallons of petrol supplied to vehicle 2.B.50. | 4th Feb 1939 | Box 111 \ 1 scan0210 | |
| Letter to a coachbuilder regarding alternative lamp arrangements for Mock-up B.50. | 8th Feb 1939 | Box 111 \ 1 scan0211 | |
| Comparative table of various automotive engine specifications. | 19th May 1937 | Box 111 \ 2 scan0212 | |
| Weight comparison between a proposed Square engine and the Phoenix engine. | 19th May 1937 | Box 111 \ 2 scan0213 | |
| Preliminary specification for a 'Revised Bentley' to retail at £900, with notes on weight and coachwork. | 27th Apr 1937 | Box 111 \ 2 scan0214 | |
| List of revised specifications for the Bentley III chassis and components. | 27th Apr 1937 | Box 111 \ 2 scan0215 | |
| List of specifications for vehicle components including gearbox, engine, and body. | 27th Apr 1937 | Box 111 \ 2 scan0216 | |
| Breakdown of weight savings by chassis component and a comparison of total car weights. | 18th Aug 1937 | Box 111 \ 2 scan0217 | |
| Brief outline of the specifications for the Phoenix Engine Unit. | 18th Aug 1937 | Box 111 \ 2 scan0218 | |
| Engine design decisions and specifications for components including the crankshaft, lubrication system and camshaft. | 18th Aug 1937 | Box 111 \ 2 scan0219 | |
| Design considerations for an engine's oil pump drive, valve operation, and cylinder heads. | 18th Aug 1937 | Box 111 \ 2 scan0220 | |
| Design considerations for cylinder heads, crankcase ventilation, centrifugal blower, and spare wheel placement for the Phoenix engine unit. | 18th Aug 1937 | Box 111 \ 2 scan0221 | |
| Raised front engine mounting, referencing Packard, Wraith, and Phoenix engines. | 18th Aug 1937 | Box 111 \ 2 scan0222 | |
| Requesting information on how camshaft bearings are held in the crankcase. | 20th Aug 1937 | Box 111 \ 2 scan0223 | |
| Providing technical remarks on preliminary design investigations for the Phoenix Engine Unit. | 20th Aug 1937 | Box 111 \ 2 scan0224 | |
| List of design notes and recommendations for various engine components, page 2. | 20th Aug 1937 | Box 111 \ 2 scan0225 | |
| Diagram comparing bearing pressures on 7, 4, and 3 bearing crankshafts. | 27th Aug 1937 | Box 111 \ 2 scan0226 | |
| Weight analysis and comparison for the projected Phoenix engine unit. | 27th Aug 1937 | Box 111 \ 2 scan0227 | |
| Weight analysis of Phoenix units, comparing Bentley and H'Power specifications. | 26th Aug 1937 | Box 111 \ 2 scan0228 | |
| Comparative table of component changes and specifications for a Bentley H'Power engine. | 26th Aug 1937 | Box 111 \ 2 scan0229 | |
| Table comparing engine components and proposed modifications for Bentley and High Power units. | 26th Aug 1937 | Box 111 \ 2 scan0230 | |
| Comparison of modifications and weights for engine and electrical components for Bentley and H'Power models. | 26th Aug 1937 | Box 111 \ 2 scan0231 | |
| Table detailing horsepower figures for miscellaneous components and the dynamo drive. | 26th Aug 1937 | Box 111 \ 2 scan0232 | |
| Weight comparison of components for the Push Rod Phoenix engine versus the Bentley engine. | 26th Aug 1937 | Box 111 \ 2 scan0233 | |
| Design considerations and test results for the Phoenix engine unit. | 30th Aug 1937 | Box 111 \ 2 scan0234 | |
| Design of the flywheel, starter motor, controls, and dynamo drive. | 30th Aug 1937 | Box 111 \ 2 scan0235 | |
| Design and manufacturing considerations for the new 'Phoenix' engine unit. | 24th Aug 1937 | Box 111 \ 2 scan0236 | |
| Modifications for the Phoenix combustion chamber high power head. | 31th Aug 1937 | Box 111 \ 2 scan0237 | |
| Comparison between a pressed steel sump and a die-cast aluminum sump for the Phoenix model. | 1st Sep 1937 | Box 111 \ 2 scan0238 | |
| Requesting tests on the Phoenix oil pump due to a new, higher projected layout and its potential effect on oil flow. | 3rd Sep 1937 | Box 111 \ 2 scan0239 | |
| Shortening the wheelbase of the Phoenix model, comparing it to Packard, Oldsmobile, and Vauxhall designs. | 28th Sep 1937 | Box 111 \ 2 scan0240 | |
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