| Description | Date | Identifier | |
| Request for antimonial lead weights for Wilmot-Breeden bumpers on Bentley Chassis to fix an issue with existing weights coming loose. | 14th Dec 1936 | Box 118 \ 2 scan0331 | |
| Letter from the Experimental Department to Wilmot Breedon Ltd. confirming a meeting time. | 15th Dec 1936 | Box 118 \ 2 scan0332 | |
| Reply-paid telegram enquiring about the delivery of lightened Phantom Three bumper bars. | 16th Dec 1936 | Box 118 \ 2 scan0333 | |
| Post Office Telegraph confirming that lightened bumpers have been sent via passenger train. | 16th Dec 1936 | Box 118 \ 2 scan0334 | |
| Letter from an engineering company discussing the compromised impact efficiency of weight-reduced special bumpers. | 16th Dec 1936 | Box 118 \ 2 scan0335 | |
| Confirming the dispatch of a bumper by passenger train. | 17th Dec 1936 | Box 118 \ 2 scan0336 | |
| Official order be sent to Messrs Wilmot Breedon for parts. | 17th Dec 1936 | Box 118 \ 2 scan0337 | |
| Letter to supplier Wilmot Breedon Ltd. regarding an urgent order for Bentley Stabiliser weights, replacement parts and clarification on component compression. | 17th Dec 1936 | Box 118 \ 2 scan0338 | |
| Letter requesting a print for a Bentley stabiliser rubber washer and confirming an order. | 17th Dec 1936 | Box 118 \ 2 scan0339 | |
| Letter from an engineering company regarding the delay and dispatch of lightened bumpers, and a design update for fitting over-riders. | 17th Dec 1936 | Box 118 \ 2 scan0340 | |
| Price increase for Bentley stabilising bumper bar weights due to material costs and new tooling. | 17th Dec 1936 | Box 118 \ 2 scan0341 | |
| Fitting a bumper bar with rubber washers to a test car for standardisation. | 17th Dec 1936 | Box 118 \ 2 scan0342 | |
| Standardisation of bumper bar weights using a lead-antimony alloy to increase hardness and prevent rattles. | 18th Dec 1936 | Box 118 \ 2 scan0343 | |
| Standardisation of parts document concerning bought-out parts for the 'J' Series chassis. | 8th Nov 1938 | Box 118 \ 2 scan0344 | |
| Requesting an official order for a Phantom III rear bumper bar for car 38-EX. | 22th Dec 1936 | Box 118 \ 2 scan0345 | |
| Telegram received by telephone regarding a sent bumper. | 16th Dec 1936 | Box 118 \ 2 scan0346 | |
| Invoice from Adamant Engineering Co. Ltd. for a Drop Arm, seeking authorisation for payment. | 23th Dec 1936 | Box 118 \ 2 scan0347 | |
| Official order for a special Bentley Bumper Bar. | 29th Dec 1936 | Box 118 \ 2 scan0348 | |
| Letter from Wilmot-Breeden Ltd. regarding the delivery date of special Bentley Stabilising Bumpers. | 30th Dec 1936 | Box 118 \ 2 scan0349 | |
| Ordering a special Bumper Bar and interim modifications for it. | 30th Dec 1936 | Box 118 \ 2 scan0350 | |
| Invoice from J.R. Engineering Co. Ltd. for a set of special chromium plated spring bumpers. | 30th Dec 1936 | Box 118 \ 2 scan0351 | |
| Letter from Wilmot-Breeden Ltd confirming the dispatch of five sets of special lead weights for Bentley Stabilising Bumpers. | 4th Jan 1937 | Box 118 \ 2 scan0352 | |
| Consignment of antimony lead weights from the Wilmot-Breeden Company. | 5th Jan 1937 | Box 118 \ 2 scan0353 | |
| Letter from Wilmot-Breeden Ltd. confirming the despatch of five sets of special lead weights for Bentley Stabilising Bumpers. | 4th Jan 1937 | Box 118 \ 2 scan0354 | |
| Query regarding the composition of a set of Stabiliser Weights ordered from Messrs. Wilmot-Breeden Ltd. | 12th Jan 1937 | Box 118 \ 2 scan0355 | |
| Letter from Wilmot-Breeden Ltd confirming a quotation for lead weights and an update on a sample bumper. | 14th Jan 1937 | Box 118 \ 2 scan0356 | |
| Letter to a supplier regarding the potential supply and design of over-riders for Bentley stabilising bumpers. | 14th Jan 1937 | Box 118 \ 2 scan0357 | |
| Follow-up memo chasing an order for a special Bentley Bumper Bar. | 18th Jan 1937 | Box 118 \ 2 scan0358 | |
| Internal memorandum regarding the composition of a set of stabiliser weights. | 18th Jan 1937 | Box 118 \ 2 scan0359 | |
| Proposed over-rider for the front stabilising bumper on a standard Bentley. | 19th Jan 1937 | Box 118 \ 2 scan0360 | |
| Difficulty of fitting over-riders to a Phantom III due to the hardened spring steel bumpers. | 19th Jan 1937 | Box 118 \ 2 scan0361 | |
| Successful drilling and fitting of over-riders to the front bumper of a Phantom III, chassis 32-EX. | 20th Jan 1937 | Box 118 \ 2 scan0362 | |
| Request to replace broken rear springs on a Bentley with a pair of Woodhead springs. | 23th Jan 1937 | Box 118 \ 2 scan0363 | |
| Supplier pricing for Bentley chassis front bumpers and components. | 27th Jan 1937 | Box 118 \ 2 scan0364 | |
| Price increase negotiation with Messrs Wilmot Breedon for Bentley bumper bar lead weights. | 29th Jan 1937 | Box 118 \ 2 scan0365 | |
| The use of Antimony Lead weights for Bentley Chassis front bumpers pending standardization. | 3rd Feb 1937 | Box 118 \ 2 scan0366 | |
| Samples of Wilmot Breeden front bumpers with over-riders for Bentley cars. | 9th Feb 1937 | Box 118 \ 2 scan0367 | |
| Fitting of new Antimony/Lead weights to Bentley 'A' Type bumpers. | 13th Feb 1937 | Box 118 \ 2 scan0368 | |
| Two special accelerator pump pistons in brass for a Phantom III. | 23th Feb 1937 | Box 118 \ 2 scan0369 | |
| Failure of Phantom III rear axle buffers and proposing a modification for production. | 3rd Mar 1937 | Box 118 \ 2 scan0370 | |
| Dispatch of a pair of over-riders for a Bentley front stabilising bumper. | 8th Mar 1937 | Box 118 \ 3 scan0001 | |
| Request for an official order for a pair of lightened Bentley rear bumpers from J.R. Engineering Co. Ltd. | 24th Feb 1937 | Box 118 \ 3 scan0002 | |
| Quotes for Bentley over-riders and standardising the Wilmot-Breeden pattern. | 6th Apr 1937 | Box 118 \ 3 scan0003 | |
| Requesting two sets of front and rear bumpers for Wraith III cars. | 6th Apr 1937 | Box 118 \ 3 scan0004 | |
| The supply and design of Bentley front stabilising bumper over-riders. | 6th Apr 1937 | Box 118 \ 3 scan0005 | |
| Confirming no technical objections to the use of over-riders on stabilising bumper bars for Bentley models. | 7th Apr 1937 | Box 118 \ 3 scan0006 | |
| Arrangement for J. R. Engineering Co. to send bumpers and over-riders for models 26-C-6 and 27-C-6. | 7th Apr 1937 | Box 118 \ 3 scan0007 | |
| The approval of Wilmot-Breeden over-riders for the Bentley front stabilising bumper. | 7th Apr 1937 | Box 118 \ 3 scan0008 | |
| Quotes and standardisation for Bentley over-riders. | 6th Apr 1937 | Box 118 \ 3 scan0009 | |
| Alteration of the Wraith III front bumpers. | 8th Apr 1937 | Box 118 \ 3 scan0010 | |
| Standardisation of Bentley over-riders for the front stabilising bumper. | 16th Apr 1937 | Box 118 \ 3 scan0011 | |
| Excessive bow on Wraith III front bumpers and a request for replacements to a new specification. | 16th Apr 1937 | Box 118 \ 3 scan0012 | |
| Arrangement for J. R. Eng. Co. to manufacture front bumpers for models 26-G-6 and 27-G-6. | 17th Apr 1937 | Box 118 \ 3 scan0013 | |
| Design modification to the front bumpers for the Wraith III model. | 19th Apr 1937 | Box 118 \ 3 scan0014 | |
| Modified design for the Wraith III front bumper. | 19th Apr 1937 | Box 118 \ 3 scan0015 | |
| Confirming an amended print for front bumpers has been sent to J. R. Engineering Co. to expedite despatch. | 20th Apr 1937 | Box 118 \ 3 scan0016 | |
| Confirming sales approval for the design and introduction of Bentley bumper overriders. | 27th Apr 1937 | Box 118 \ 3 scan0017 | |
| Standardisation of parts report for a Bentley bumper bar with Wilmot Breedon over-rider. | 16th Apr 1937 | Box 118 \ 3 scan0018 | |
| Standardisation of parts for a Bentley radiator with thermo-shutter. | 21th Sep 1927 | Box 118 \ 3 scan0019 | |
| Broken Harmonic Stabiliser and the subsequent repair and testing. | 13th May 1937 | Box 118 \ 3 scan0020 | |
| Standardisation of parts report for studs holding bob weights of a stabilising bumper bar. | 24th Feb 1937 | Box 118 \ 3 scan0021 | |
| Production schedule and tooling cost for a new bumper on the 'K' series chassis. | 18th Feb 1937 | Box 118 \ 3 scan0022 | |
| Modification to the Bentley chassis front bumper centre stud and stabiliser weights. | 2nd Sep 1937 | Box 118 \ 3 scan0023 | |
| Scheme for a Bentley 111 rear bumper and bracket, incorporating a pad for a D.W.S. portable jack. | 21th Sep 1937 | Box 118 \ 3 scan0024 | |
| Ordering six sets of front bumpers for the Wraith III chassis. | 12th Oct 1937 | Box 118 \ 3 scan0025 | |
| Request to obtain two sets of bumpers for vehicles 28.G.VI and 29.G.VI. | 16th Nov 1937 | Box 118 \ 3 scan0026 | |
| Requesting an order for front and rear bumpers for chassis LeC.5627 and LeC.5267, correcting a previous omission. | 17th Nov 1937 | Box 118 \ 3 scan0027 | |
| Standardisation of a rubber washer for securing lead weights in the bumper bar. | 14th Jun 1937 | Box 118 \ 3 scan0028 | |
| Bentley parts standardisation form detailing the estimated cost of new tools for the 'M' Series chassis. | 2nd Sep 1938 | Box 118 \ 3 scan0029 | |
| Comparison of bump chassis characteristics and frame rigidity for the B.2, B.3, and Wraith III models. | 11th Dec 1937 | Box 118 \ 3 scan0030 | |
| Letter to Messrs Wilmot-Breeden Ltd. confirming modifications for Bentley stabilising bumper bars. | 23th Dec 1937 | Box 118 \ 3 scan0031 | |
| Covering order for 3 special Bentley Stabilising Bumpers. | 23th Dec 1937 | Box 118 \ 3 scan0032 | |
| Letter from Wilmot-Breeden Ltd. regarding stabilising bumpers, enclosing assembly drawing PD/EXP. 4366 for consideration. | 31th Dec 1937 | Box 118 \ 3 scan0033 | |
| General assembly drawing for a stabilising bumper. | 20th Dec 1933 | Box 118 \ 3 scan0034 | |
| Blueprint for a modified stabilising bumper. | 3rd Jan 1938 | Box 118 \ 3 scan0035 | |
| Letter to Wilmot-Breeden Ltd. regarding a new stabiliser and an alternative number plate fixing. | 3rd Jan 1938 | Box 118 \ 3 scan0036 | |
| Letter from Wilmot-Breeden Ltd. regarding the procurement of Silicon Manganese Steel for Bentley springs and nickel steel for bumper studs. | 3rd Jan 1938 | Box 118 \ 3 scan0037 | |
| The supply of materials for Bentley bumper bars due to a supplier delay. | 4th Jan 1938 | Box 118 \ 3 scan0038 | |
| Request to forward materials to Messrs Wilmot Breedon for producing Bentley II Bumpers. | 5th Jan 1938 | Box 118 \ 3 scan0039 | |
| Letter from Wilmot-Breeden Ltd. discussing modifications to drawings for stabilising bumpers. | 5th Jan 1938 | Box 118 \ 3 scan0040 | |
| Letter from Wilmot-Breeden Limited confirming they are proceeding with an order for bumpers and enclosing relevant blueprints. | 8th Jan 1937 | Box 118 \ 3 scan0041 | |
| Letter to Wilmot-Breeden Ltd. about prints for part numbers FW.1110 and FB.3184, and an urgent quotation. | 8th Jan 1937 | Box 118 \ 3 scan0042 | |
| Letter from Wilmot-Breeden Ltd regarding a delay in manufacturing special bumpers under order 54502. | 8th Jan 1938 | Box 118 \ 3 scan0043 | |
| Continuation page of a letter from Wilmot Breeden Ltd. to Rolls Royce Ltd. | 8th Jan 1938 | Box 118 \ 3 scan0044 | |
| Letter to Messrs. Wilmot-Breeden Ltd. sending a further print of bumper bar FB.3184 and requesting prices for bumper bars and steering wheels. | 13th Jan 1938 | Box 118 \ 3 scan0045 | |
| Letter from Wilmot-Breeden Ltd. confirming they are proceeding with an estimate for front bumpers. | 14th Jan 1938 | Box 118 \ 3 scan0046 | |
| Letter to a supplier expressing astonishment at delays and requesting a firm delivery date for a sample bumper stabiliser. | 20th Jan 1938 | Box 118 \ 3 scan0047 | |
| Letter from a supplier regarding delays in the production of sample bumpers due to material machining difficulties. | 22th Jan 1938 | Box 118 \ 3 scan0048 | |
| Letter to Wilmot-Breeden Ltd. regarding a material specification for Silico Manganese Steel and arranging to fit a bumper. | 25th Jan 1938 | Box 118 \ 3 scan0049 | |
| Confirming cost-saving changes to the Wilmot Breeden stabilising bumpers for the Bentley II. | 31th Jan 1938 | Box 118 \ 3 scan0050 | |
| Letter to J.R. Engineering Co. Ltd. regarding the cost of a bumper bar and arranging a meeting. | 31th Jan 1938 | Box 118 \ 3 scan0051 | |
| Letter from J.R. Engineering Company Ltd regarding bumpers and arranging a visit. | 1st Feb 1938 | Box 118 \ 3 scan0052 | |
| Correspondence on Grand Hotel Sheffield letterhead arranging a meeting. | 1st Feb 1938 | Box 118 \ 3 scan0053 | |
| Request to obtain a set of over-riders for fitting to bumpers. | 2nd Feb 1938 | Box 118 \ 3 scan0054 | |
| Telegram received by telephone concerning a Leslie Stabiliser arriving in Derby. | 2nd Feb 1938 | Box 118 \ 3 scan0055 | |
| Letter to supplier Wilmot Breeden Ltd. concerning samples, pricing, and an order for Bentley stabilisers and bumpers. | 3rd Feb 1938 | Box 118 \ 3 scan0056 | |
| Letter regarding the supply of a bumper, discussing cost, quality, price and delivery dates. | 3rd Feb 1938 | Box 118 \ 3 scan0057 | |
| Diagrams showing two methods for the attachment of a U bolt to mainsprings. | 8th Feb 1938 | Box 118 \ 3 scan0058 | |
| Comparing quotations from suppliers for the manufacture of bumper bars. | 8th Feb 1938 | Box 118 \ 3 scan0059 | |
| Outlining the advantages of purchasing the Wraith Bumper from supplier Ridlington. | 8th Feb 1938 | Box 118 \ 3 scan0060 | |
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