| Description | Date | Identifier | |
| Letter from Dunlop confirming the dispatch of five disc wheels and cover caps. | 29th Aug 1938 | Box 159 \ 1 scan0365 | |
| Despatch of two 4x17 Dunlop wire wheels to Messrs. Dunlops Ltd. for repair. | 31th Aug 1938 | Box 159 \ 1 scan0366 | |
| Letter to Dunlop Rim & Wheel Co. Ltd. regarding the return of two faulty wire wheels for observation and repair. | 31th Aug 1938 | Box 159 \ 1 scan0367 | |
| Letter from Dunlop Rim & Wheel Co. Ltd. about the inspection of two 4.00-17 wire wheels, reporting damaged spokes. | 6th Sep 1938 | Box 159 \ 1 scan0368 | |
| Letter from Dunlop Rim & Wheel Co. detailing the inspection results and repair costs for two wire wheels. | 12th Sep 1938 | Box 159 \ 1 scan0369 | |
| Letter to Dunlop Rim & Wheel Co. Ltd. confirming the decision to scrap wheels. | 19th Sep 1938 | Box 159 \ 1 scan0370 | |
| Letter to Dunlop Rubber Co. Ltd. confirming an order for various wheels and tyres. | 27th Oct 1938 | Box 159 \ 1 scan0371 | |
| Telegram requesting a price and drawing for a 4 x 16 lightweight rim from Dunlops in Birmingham. | 1st Nov 1938 | Box 159 \ 1 scan0372 | |
| Letter from Dunlop Rubber Co. concerning a drawing for a 4.00x16 lightweight rim and its testing. | 2nd Nov 1938 | Box 159 \ 1 scan0373 | |
| Letter from Dunlop Rim & Wheel Co. enclosing a blueprint for a lightweight seam welded rim. | 3rd Nov 1938 | Box 159 \ 1 scan0374 | |
| Blueprint drawing for a 4.00 E.L.P. lightweight rim. | 26th Aug 1938 | Box 159 \ 1 scan0375 | |
| Letter to Dunlop Rubber Co. Ltd. proposing a simpler means of tyre inflation for disc-covered wire wheels on an experimental Bentley. | 3rd Nov 1938 | Box 159 \ 1 scan0376 | |
| Letter from Dunlop Rubber Co. Ltd. regarding a modified valve arrangement for wire wheels with cover discs. | 4th Nov 1938 | Box 159 \ 1 scan0377 | |
| Letter to Dunlop Rubber Co. Ltd. requesting a quotation for six lightweight steel wheels for test purposes. | 5th Nov 1938 | Box 159 \ 1 scan0378 | |
| Letter from Dunlop regarding the possibility of producing a specific set of disc wheels and rims. | 7th Nov 1938 | Box 159 \ 1 scan0379 | |
| Letter from Dunlop Rubber Co., Ltd. regarding the supply and production of special wire wheels and Michelin rims. | 8th Nov 1938 | Box 159 \ 1 scan0380 | |
| Letter from Dunlop Rubber Co. discussing the practicality of a suggested valve arrangement for cover discs. | 8th Nov 1938 | Box 159 \ 1 scan0381 | |
| Letter from Dunlop Rubber Co. Ltd. regarding test results on the power consumption of tyres. | 9th Nov 1938 | Box 159 \ 1 scan0382 | |
| Power consumption data from dynamometer tests on various tyre sizes under different load and inflation conditions. | 10th Nov 1938 | Box 159 \ 1 scan0383 | |
| Letter to Dunlop Rubber Co. Ltd. regarding special wheels with Michelin rims and a misunderstanding over tyre sizes. | 10th Nov 1938 | Box 159 \ 1 scan0384 | |
| Letter from Dunlop Rubber Co., Ltd. confirming details for an order of 72V and 72R type wire wheels. | 10th Nov 1938 | Box 159 \ 1 scan0385 | |
| Letter to Dunlop Rubber Co. Ltd. concerning a special rubber valve for tyre inflation. | 11th Nov 1938 | Box 159 \ 1 scan0386 | |
| Letter from Dunlop regarding the production of disc wheels and an increase in wheel track. | 11th Nov 1938 | Box 159 \ 1 scan0387 | |
| Correspondence from Dunlop Rubber Co. regarding disc wheels and enclosed photographs. | 11th Nov 1938 | Box 159 \ 1 scan0388 | |
| Letter from Dunlop Rubber Co. enclosing prints for two types of special wheels against order 75216. | 11th Nov 1938 | Box 159 \ 1 scan0389 | |
| Blueprint for a Dunlop Type 72R wire wheel. | 5th Nov 1938 | Box 159 \ 1 scan0390 | |
| Blueprint of a Dunlop Type 72V Wire Wheel. | 10th Nov 1938 | Box 159 \ 1 scan0391 | |
| Letter to Dunlop Rubber Co. Ltd. authorising the costing of an experimental set of lightweight wheels. | 14th Nov 1938 | Box 159 \ 1 scan0392 | |
| Letter from Dunlop arranging a meeting to discuss valve fitments for cover discs. | 14th Nov 1938 | Box 159 \ 1 scan0393 | |
| Order to be sent to Dunlops for five wheels. | 17th Nov 1938 | Box 159 \ 1 scan0394 | |
| Letter from Dunlop Rubber Co., Ltd. confirming an order for five wheels at a special price of £2 each. | 18th Nov 1938 | Box 159 \ 1 scan0395 | |
| Letter from Dunlop Rubber Co. Ltd. regarding the dispatch of one set of special tyres and a fourteen-day delay on another. | 18th Nov 1938 | Box 159 \ 1 scan0396 | |
| Letter from Dunlop Rubber Co. concerning experiments on a disc, including valve fitting and rubber application. | 21th Nov 1938 | Box 159 \ 1 scan0397 | |
| Letter from Dunlop Rubber Co. Ltd. providing a quotation for rubber materials for wheel covering discs. | 13th Dec 1938 | Box 159 \ 1 scan0398 | |
| Letter to Dunlop Rubber Co. regarding an issue with an experimental wire wheel on a Bentley chassis. | 15th Dec 1938 | Box 159 \ 1 scan0399 | |
| Letter from Dunlop Rubber Co. Ltd. concerning issues with wheels on a Bentley chassis and the Wraith. | 16th Dec 1938 | Box 159 \ 1 scan0400 | |
| Letter from Dunlop Rim & Wheel Co. Ltd. regarding a delivery delay for five disc wheels. | 20th Dec 1938 | Box 159 \ 1 scan0401 | |
| Letter from the Experimental Department to The Dunlop Rim & Wheel Co. Ltd. regarding the return of two wheels. | 22th Dec 1938 | Box 159 \ 1 scan0402 | |
| Requesting the despatch of two 4.50' x 16' wire wheels to The Dunlop Rim & Wheel Co. Ltd. | 22th Dec 1938 | Box 159 \ 1 scan0403 | |
| Letter from Dunlop confirming the completion and dispatch of an order for five 4.00-16' lightweight disc wheels. | 30th Dec 1938 | Box 159 \ 1 scan0404 | |
| Wing stay for use with Bensport flared front wings. | 26th Apr 1933 | Box 159 \ 2 scan0001 | |
| Alternative wing design for a Bentley vehicle. | 2nd Jun 1933 | Box 159 \ 2 scan0002 | |
| Design, aerodynamics, and production considerations for cycle-type wings on Bentley cars. | 15th Jul 1933 | Box 159 \ 2 scan0003 | |
| The impracticality of cycle type wings and potential modifications for a 100 m.p.h. Bentley. | 18th Jul 1933 | Box 159 \ 2 scan0004 | |
| Advising against the use of cycle type wings on Bentley cars due to issues experienced by Lagonda. | 19th Jul 1933 | Box 159 \ 2 scan0005 | |
| Aerodynamic efficiency and practical issues of cycle-type wings for a Bentley. | 20th Jul 1938 | Box 159 \ 2 scan0006 | |
| Design of cycle type wings for a Bentley, addressing issues of mud slinging and wind resistance. | 25th Jul 1933 | Box 159 \ 2 scan0007 | |
| Response regarding the experimental fitting of cycle-type wings on a Bentley. | 27th Jul 1933 | Box 159 \ 2 scan0008 | |
| Schedules and illustrations for cycle-type wings on the 100 M.P.H. Bensport model. | 8th Sep 1933 | Box 159 \ 2 scan0009 | |
| Condition of front wings, their replacement, and the potential of rust-proofed steel wings. | 13th Dec 1933 | Box 159 \ 2 scan0010 | |
| Letter to Park Ward & Co. confirming the fitting of new front wings with stone shields to a Bentley Experimental Saloon. | 13th Dec 1933 | Box 159 \ 2 scan0011 | |
| Delivery, mounting, and painting of front wings for model I.B.3. | 14th Dec 1933 | Box 159 \ 2 scan0012 | |
| Faults on a Bentley 10,000 miles Trials Car, specifically regarding the wings, footwells, and seat runners. | 18th Dec 1933 | Box 159 \ 2 scan0013 | |
| Two failures of wing stays on a Bentley, detailing the causes and a recommendation. | 21th Dec 1933 | Box 159 \ 2 scan0014 | |
| Safety concerns and testing requirements for cycle type wings on a Bentley speed model. | 1st Jan 1934 | Box 159 \ 2 scan0015 | |
| Request to prepare a front axle with wing stays for testing cycle type wing fixings on a Bumper Chassis. | 5th Jan 1934 | Box 159 \ 2 scan0016 | |
| From Sg. to Hs. requesting a reply regarding cycle type wings for a Bentley. | 9th Jan 1934 | Box 159 \ 2 scan0017 | |
| Producing and testing new alloy steel stays for cycle-type wings intended for a Bentley. | 11th Jan 1934 | Box 159 \ 2 scan0018 | |
| Parts list with instructions for modifying the front axle, wings, and wing stays on a Bentley chassis. | 12th Jan 1934 | Box 159 \ 2 scan0019 | |
| Progress of bumper tests on cycle-type wing stays for Mr. Fedden's new chassis. | 24th Jan 1934 | Box 159 \ 2 scan0020 | |
| Front wing dithering on a Bentley and the improvements made. | 27th Jan 1934 | Box 159 \ 2 scan0021 | |
| Front wing dithering issues on Bentley production cars. | 29th Jan 1934 | Box 159 \ 2 scan0022 | |
| Production difficulties with wing stays for cycle-type wings and the revised schedule for bump tests. | 29th Jan 1934 | Box 159 \ 2 scan0023 | |
| Issues with Bentley cycle type wings and their spring steel stays. | 7th Feb 1934 | Box 159 \ 2 scan0024 | |
| Standard shape and fitting of cycle-type wings for a Bentley. | 13th Feb 1934 | Box 159 \ 2 scan0025 | |
| Experiments with cycle-type front wings on Bentley chassis B-157-AE and B-189-AE. | 15th Feb 1934 | Box 159 \ 2 scan0026 | |
| Requirement for new stub axles and wing stays for Bentley Chassis B.157-AE and B.189-AE. | 21th Feb 1934 | Box 159 \ 2 scan0027 | |
| The material for Bentley Cycle Type wings, suggesting a change to mild steel for the stays. | 26th Feb 1934 | Box 159 \ 2 scan0028 | |
| Complaint of rigidity at the wing attachment by adding an outer pressing to the Bentley Wing Stays. | 28th Feb 1934 | Box 159 \ 2 scan0029 | |
| The use of mild steel instead of spring steel for Bentley Cycle Type wing stays. | 26th Feb 1934 | Box 159 \ 2 scan0030 | |
| Instructions to produce and fit cycle-type front mud wings to Bentley chassis B-157-AE and B-189-AE. | 26th Feb 1934 | Box 159 \ 2 scan0031 | |
| Letter to Park Ward & Co. detailing the correct method for preparing sheet steel wings for painting. | 1st Sep 1934 | Box 159 \ 2 scan0032 | |
| Letter to Messrs. Park Ward & Co., Ltd. regarding the investigation into the use of steel for wings. | 1st Sep 1934 | Box 159 \ 2 scan0033 | |
| Query regarding the performance and rust resistance of steel wings supplied by Park Ward for experimental cars. | 8th Nov 1935 | Box 159 \ 2 scan0034 | |
| Experimental car tests comparing the rust and durability of steel wings versus aluminium wings. | 11th Nov 1935 | Box 159 \ 2 scan0035 | |
| Sending drawings (LeC.5262) for the Wraith II front wing and instructions for the coachbuilder. | 18th Sep 1936 | Box 159 \ 2 scan0036 | |
| Design of the Wraith II front apron. | 18th Sep 1936 | Box 159 \ 2 scan0037 | |
| Modifications to address Bentley front apron rattles, including clearances and harder rubber mountings. | 27th May 1937 | Box 159 \ 2 scan0038 | |
| Modifications to the Wraith III rear wings, axle, and body. | 3rd Sep 1937 | Box 159 \ 2 scan0039 | |
| Internal order request for 6 sets of Wing Stays & Fittings for the Wraith III Chassis. | 9th Oct 1937 | Box 159 \ 2 scan0040 | |
| Order for 6 sets of parts for the Wraith III Chassis front apron. | 9th Oct 1937 | Box 159 \ 2 scan0041 | |
| Changes to the rear wheelarch clearances and rear track dimensions. | 11th Aug 1938 | Box 159 \ 2 scan0042 | |
| Secret memo regarding the layout for front wings on model 2.B.50, ensuring compatibility with different suspension track widths. | 17th Aug 1938 | Box 159 \ 2 scan0043 | |
| Secret memo about a revised print for front wings, requesting the destruction of the original drawing. | 19th Aug 1938 | Box 159 \ 2 scan0044 | |
| Revised prints for front and back wings, specifically addressing changes in overall width and back track measurements. | 20th Aug 1938 | Box 159 \ 2 scan0045 | |
| Specifications for rear wings, track width, and wheel arch clearances. | 22th Aug 1938 | Box 159 \ 2 scan0046 | |
| Revised scheme for the front wings on the Bentley 50 and Wraith 80 models. | 23th Aug 1938 | Box 159 \ 2 scan0047 | |
| Revised rear lamp bracket for the Bentley V to fit the helmet of the wing. | 6th Feb 1939 | Box 159 \ 2 scan0048 | |
| Scheme for wing lamps on the Bentley V chassis, designed to be an integral yet accessible part of the wing. | 6th Feb 1939 | Box 159 \ 2 scan0049 | |
| Jig produced by Park Ward for bending Bentley S. front wing stays and the necessary drawing modifications. | 20th Jun 1939 | Box 159 \ 2 scan0050 | |
| Unbooked Spitfire wing delivered to the Clan Foundry and the agreement to pay for its carriage. | 23th Nov 1940 | Box 159 \ 2 scan0051 | |
| Letter requesting information to process payment for the transport of a Spitfire Wing. | 19th Nov 1940 | Box 159 \ 2 scan0052 | |
| Letter to Dunlop Rubber Co. Ltd. enclosing a copy of a letter sent to their Coventry branch. | 3rd Jan 1939 | Box 159 \ 3 scan0001 | |
| Letter to Dunlop Rim & Wheel Co. Ltd. regarding an urgent investigation into wheel nuts fouling on Wraith chassis spoke heads. | 3rd Jan 1939 | Box 159 \ 3 scan0002 | |
| Letter from Dunlop discussing the performance, design, and manufacturing cost of special lightweight wheel rims. | 4th Jan 1939 | Box 159 \ 3 scan0003 | |
| Letter from Dunlop confirming a meeting to discuss the lock nut clearance on 'Wraith' wheels. | 4th Jan 1939 | Box 159 \ 3 scan0004 | |
| Letter from Dunlop Rubber Co. confirming a meeting arrangement with Mr. Sharp. | 5th Jan 1939 | Box 159 \ 3 scan0005 | |
| Letter to Dunlop Rubber Co. regarding modifications to Wraith model wheel hubs and specifications for wire wheels. | 9th Jan 1939 | Box 159 \ 3 scan0006 | |
| Confirming a verbal order for wheels and inner tubes from Dunlops, requesting a formal order to be sent. | 9th Jan 1939 | Box 159 \ 3 scan0007 | |
| To Mr. Hardy regarding the delivery of two 4.50 x 16' wire wheels from Dunlop Rubber Co. Ltd. | 9th Jan 1939 | Box 159 \ 3 scan0008 | |
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