| Description | Date | Identifier | |
| Letter from Wilmot-Breeden Ltd. regarding the supply and tuning of a harmonic stabiliser for a 20/25 HP car. | 22th Nov 1933 | Box 118 \ 2 scan0031 | |
| The development and testing of a bumper designed to eliminate radiator movement. | 27th Nov 1933 | Box 118 \ 2 scan0032 | |
| Arranging a three-day test for a bumper designed to eliminate radiator movement. | 28th Nov 1933 | Box 118 \ 2 scan0033 | |
| Inquiring about the availability of a 20/25 Enclosed Limousine GYZ-31 to test a bumper designed to eliminate radiator movement. | 19th Dec 1933 | Box 118 \ 2 scan0034 | |
| Confirming the arrangement to fit a bumper to eliminate radiator movement with three days' notice. | 20th Dec 1933 | Box 118 \ 2 scan0035 | |
| Scheduling of a car for a modification concerning radiator movement. | 21th Dec 1933 | Box 118 \ 2 scan0036 | |
| Arranging for a 20/25 model to come to Derby for the fitting of a stabilising bumper. | 22th Dec 1933 | Box 118 \ 2 scan0037 | |
| Scheduling of work with Wilmot-Breeden to fit a bumper to stop radiator movement. | 27th Dec 1933 | Box 118 \ 2 scan0038 | |
| Letter to Messrs. Wilmot-Breeden, Ltd. regarding the fitting of a bumper to a demonstration car. | 27th Dec 1933 | Box 118 \ 2 scan0039 | |
| Requesting a one-week postponement for work on car GYZ-31 to fit a bumper to eliminate radiator movement. | 28th Dec 1933 | Box 118 \ 2 scan0040 | |
| Bumper to eliminate radiator movement and arranging a meeting. | 29th Dec 1933 | Box 118 \ 2 scan0041 | |
| Letter to Messrs. Wilmot-Breeden Ltd. regarding the availability of a Trials Car for experimental work. | 29th Dec 1933 | Box 118 \ 2 scan0042 | |
| Bumper to eliminate radiator movement and arranging to send a car for work. | 2nd Jan 1934 | Box 118 \ 2 scan0043 | |
| Letter from Wilmot-Breeden Ltd regarding the fitting of a Stabilising Bumper to a car. | 2nd Jan 1934 | Box 118 \ 2 scan0044 | |
| Continuation letter from Wilmot-Breeden Ltd. requesting car and body details for bumper manufacturing and fitting. | 2nd Jan 1934 | Box 118 \ 2 scan0045 | |
| Letter to Wilmot-Breeden Ltd. arranging for measurements to be taken from a 20/25 HP demonstration car for the purpose of making a bumper. | 5th Jan 1934 | Box 118 \ 2 scan0046 | |
| Correspondence regarding sending car GYZ-31 for work on a bumper to eliminate radiator movement. | 5th Jan 1934 | Box 118 \ 2 scan0047 | |
| Letter from Wilmot-Breeden Ltd. regarding the fitting of a Stabilising Bumper to a 20/25 HP car. | 6th Jan 1934 | Box 118 \ 2 scan0048 | |
| The fitting of a bumper to eliminate radiator movement on car GYZ-31. | 8th Jan 1934 | Box 118 \ 2 scan0049 | |
| Letter to Wilmot-Breeden Ltd. arranging to bring over a 20/25 HP car. | 8th Jan 1934 | Box 118 \ 2 scan0050 | |
| Car GYZ-31 and a bumper modification to eliminate radiator movement, arranging for trial runs. | 9th Jan 1934 | Box 118 \ 2 scan0051 | |
| Letter from Wilmot-Breeden Ltd. confirming an appointment to bring a car to their works. | 9th Jan 1934 | Box 118 \ 2 scan0052 | |
| Visit to Wilmot-Breeden Ltd. regarding the development of a bumper to eliminate radiator movement on car GYZ-31. | 12th Jan 1934 | Box 118 \ 2 scan0053 | |
| Rough sketch of the Wilmot-Breeden bumper designed to eliminate radiator movement. | 13th Jan 1934 | Box 118 \ 2 scan0054 | |
| Letter to Wilmot-Breeden Ltd. concerning blueprints, chassis dimensions, and bumper fittings. | 13th Jan 1934 | Box 118 \ 2 scan0055 | |
| Letter from Wilmot-Breeden Ltd. arranging the tuning of a bumper and stabiliser on a car. | 24th Jan 1934 | Box 118 \ 2 scan0056 | |
| Correspondence with Wilmot-Breeden Ltd. regarding fitting a bumper to a 20/25 HP car to eliminate radiator movement. | 25th Jan 1934 | Box 118 \ 2 scan0057 | |
| Letter from Wilmot-Breeden Ltd. regarding the stabilisation of a car and a proposal to fit a bumper, including a blueprint. | 25th Jan 1934 | Box 118 \ 2 scan0058 | |
| Letter to Messrs. Wilmot-Breeden, Ltd. regarding the logistics of fitting a Stabilising Bumper to a 20/25 HP car. | 29th Jan 1934 | Box 118 \ 2 scan0059 | |
| Letter to Wilmot-Breeden Ltd. regarding the tuning of a stabiliser for a 20/25 HP chassis. | 3rd Feb 1934 | Box 118 \ 2 scan0060 | |
| Follow-up memo regarding a bumper to eliminate radiator movement on car GYZ-31. | 7th Feb 1934 | Box 118 \ 2 scan0061 | |
| Fitting and performance of a stabiliser designed to eliminate radiator movement. | 20th Feb 1934 | Box 118 \ 2 scan0062 | |
| Follow-up memo regarding a bumper designed to eliminate radiator movement. | 20th Feb 1934 | Box 118 \ 2 scan0063 | |
| To the Order Office requesting a purchase order for a Stabilising Bumper Bar from Messrs. Wilmot-Breeden. | 16th May 1934 | Box 118 \ 2 scan0064 | |
| Battery modifications for a Phantom II Stabiliser experiment, suggesting a two-piece battery. | 14th Jun 1934 | Box 118 \ 2 scan0065 | |
| Modifications to the stabiliser and battery box for a two-unit battery, referencing schematics N.Sch.4114 and N.Sch.4064. | 2nd Jul 1934 | Box 118 \ 2 scan0066 | |
| Letter to Wilmot-Breeden Ltd. regarding the performance and further tuning of a stabilising bumper. | 7th Sep 1934 | Box 118 \ 2 scan0067 | |
| Letter from Wilmot-Breeden Ltd concerning the performance and re-tuning of a stabilising bumper for a 25 HP car. | 15th Sep 1934 | Box 118 \ 2 scan0068 | |
| Continuation of a letter from Wilmot-Breeden Ltd. regarding arrangements for returning a car. | 15th Sep 1934 | Box 118 \ 2 scan0069 | |
| Brief memo to Captain Wilkes of Rover Company Limited regarding a convenient day for a visit. | 15th Sep 1934 | Box 118 \ 2 scan0070 | |
| Letter to Captain Wilkes of Rover arranging a visit to discuss disappointing results with a Wilmot Bumper stabilising device. | 15th Sep 1934 | Box 118 \ 2 scan0071 | |
| Letter from The Rover Company Ltd regarding the use of Harmonic Stabilisers and damping. | 17th Sep 1934 | Box 118 \ 2 scan0072 | |
| Letter from The Rover Company regarding the effective weight of bob weights and a stabilising arrangement. | 17th Sep 1934 | Box 118 \ 2 scan0073 | |
| Letter to Messrs. Wilmot-Breeden Ltd. regarding the discontinuation of stabiliser experiments. | 18th Sep 1934 | Box 118 \ 2 scan0074 | |
| Request to source samples of the lightest and most attractive stabilising bumpers on the market for a Bentley car. | 22th Sep 1934 | Box 118 \ 2 scan0075 | |
| Sending two different Bentley front bumpers, a Wilmot-Breeden and a J.R., and noting their respective weights. | 24th Sep 1934 | Box 118 \ 2 scan0076 | |
| Letter from the Experimental Department confirming an appointment with Captain Wilks of The Rover Company. | 24th Sep 1934 | Box 118 \ 2 scan0077 | |
| Design and sourcing of a special, lighter front bumper for Bentley cars. | 24th Sep 1934 | Box 118 \ 2 scan0078 | |
| Acknowledgement of a note concerning Bentley Bumpers and anticipating their arrival. | 25th Sep 1934 | Box 118 \ 2 scan0079 | |
| Letter to Messrs. Wilmot-Breeden Ltd. urgently requesting a second bumper for testing purposes. | 2nd Oct 1934 | Box 118 \ 2 scan0080 | |
| Letter from The Rover Company Ltd. discussing their 'wobbling machine' and arranging a test. | 2nd Oct 1934 | Box 118 \ 2 scan0081 | |
| Correspondence with The Rover Company regarding the use of a wobbling machine. | 3rd Oct 1934 | Box 118 \ 2 scan0082 | |
| Requesting the fitting of small and large bumper bars to a Bentley 1 car for testing. | 3rd Oct 1934 | Box 118 \ 2 scan0083 | |
| Letter to Wilmot-Breeden Ltd regarding a delayed 25 HP bumper delivery and subsequent test postponement. | 5th Oct 1934 | Box 118 \ 2 scan0084 | |
| Letter from Wilmot-Breeden Ltd concerning the suitability of the dumb iron for fitting a stabilising bumper. | 5th Oct 1934 | Box 118 \ 2 scan0085 | |
| Continuation page of a letter from Wilmot-Breeden Ltd. to Messrs. Rolls-Royce Ltd. | 5th Oct 1934 | Box 118 \ 2 scan0086 | |
| Letter from Wilmot-Breeden Ltd regarding a delayed bumper delivery. | 5th Oct 1934 | Box 118 \ 2 scan0087 | |
| Letter to supplier Wilmot-Breeden Ltd. concerning a bumper attachment method and material specifications. | 6th Oct 1934 | Box 118 \ 2 scan0088 | |
| Letter from Wilmot-Breeden Ltd. regarding a bumper, its iron bracket, and an alternative fixing method. | 10th Oct 1934 | Box 118 \ 2 scan0089 | |
| Continuation page of a letter regarding information carried on a blueprint. | 10th Oct 1934 | Box 118 \ 2 scan0090 | |
| Modification to the Phantom Stabiliser flange connection. | 11th Oct 1934 | Box 118 \ 2 scan0091 | |
| Letter to Captain Wilks of The Rover Company thanking him for the use of a frame twisting machine. | 12th Oct 1934 | Box 118 \ 2 scan0092 | |
| The torsional vibration of a Bentley frame and the effect of harmonic stabiliser bumpers. | 20th Oct 1934 | Box 118 \ 2 scan0093 | |
| Bentley chassis vibration tests, specifically concerning the torsional vibration of the frame forward of the dash. | 20th Oct 1934 | Box 118 \ 2 scan0094 | |
| Test report comparing the performance and damping characteristics of Wilmot and Rover stabilisers. | 20th Oct 1934 | Box 118 \ 2 scan0095 | |
| Analysis comparing the performance of Rover and Wilmot stabilisers and the effect on frame and lamp movement. | 20th Oct 1934 | Box 118 \ 2 scan0096 | |
| Graphical report on chassis front end vibration tests performed under various component configurations. | 7th Oct 1934 | Box 118 \ 2 scan0097 | |
| Requesting the creation of a scheme for fitting a Wilmot Breeden bumper bar to a 20/25 HP car. | 23th Oct 1934 | Box 118 \ 2 scan0098 | |
| Method for fitting a bumper bar to existing Bentleys and a design improvement for future models. | 23th Oct 1934 | Box 118 \ 2 scan0099 | |
| The torsional vibration of a Bentley frame and the effect of harmonic stabiliser bumpers. | 24th Oct 1934 | Box 118 \ 2 scan0100 | |
| Bentley chassis vibration tests concerning torsional vibration of the frame forward of the dash. | 24th Oct 1934 | Box 118 \ 2 scan0101 | |
| Analysis of issues with a Wilmot Breeden Bumper, stabilisers, and lamp vibration. | 24th Oct 1934 | Box 118 \ 2 scan0102 | |
| Letter from Wilmot-Breeden Ltd sending detailed prints for a Rover Bumper fixing assembly. | 24th Oct 1934 | Box 118 \ 2 scan0103 | |
| Blueprint showing the arrangement of a stabilizing bumper and D.I. bracket. | 27th Oct 1934 | Box 118 \ 2 scan0104 | |
| Modifications to a Bentley front bumper stabiliser based on feedback from Andre Ltd. | 27th Oct 1934 | Box 118 \ 2 scan0105 | |
| Request to produce nuts and studs for a Wilmot Bumper to be fitted onto a demonstration car. | 29th Oct 1934 | Box 118 \ 2 scan0106 | |
| Request to issue a covering order to Wilmot Breeden Ltd. for one Bumper and two Bentley Bumpers. | 1st Nov 1934 | Box 118 \ 2 scan0107 | |
| Letter to Wilmot-Breeden Ltd. requesting a new wider Bentley Bumper and querying how to tune its frequency. | 1st Nov 1934 | Box 118 \ 2 scan0108 | |
| Letter from Wilmot-Breeden Ltd. regarding the design and specifications for a car bumper. | 2nd Nov 1934 | Box 118 \ 2 scan0109 | |
| Letter from Wilmot-Breeden Ltd. regarding the supply of a main spring for further testing. | 2nd Nov 1934 | Box 118 \ 2 scan0110 | |
| Letter to Wilmot-Breeden Ltd chasing the delivery of experimental bumper parts. | 6th Nov 1934 | Box 118 \ 2 scan0111 | |
| Modifications to a front stabiliser bumper for a Bentley. | 6th Nov 1934 | Box 118 \ 2 scan0112 | |
| Despatch of a Stabilised Bumper and blueprint to Messrs. Hooper in Acton. | 7th Nov 1934 | Box 118 \ 2 scan0113 | |
| Stabilised bumper with fittings and a blueprint for a 25 HP chassis. | 7th Nov 1934 | Box 118 \ 2 scan0114 | |
| Letter from Wilmot-Breeden Ltd. confirming the dispatch of a bumper by passenger train. | 9th Nov 1934 | Box 118 \ 2 scan0115 | |
| Urgent memo requesting production of 6 sets of parts for a Wilmot Bumper fixing, following a customer's refusal of delivery. | 14th Nov 1934 | Box 118 \ 2 scan0116 | |
| Requesting an order for three Bentley Wilmot bumper bars. | 21th Nov 1934 | Box 118 \ 2 scan0117 | |
| Letter to a supplier regarding incorrectly sized 'U' bolts and ordering new bumpers. | 21th Nov 1934 | Box 118 \ 2 scan0118 | |
| Letter from Wilmot-Breeden Ltd. regarding the supply of U bolts and a 62' Stabilising Bumper. | 23th Nov 1934 | Box 118 \ 2 scan0119 | |
| Letter from Wilmot-Breeden Ltd. regarding the production of three sets of stabilising bumpers for a Bentley, highlighting a potential wear issue. | 24th Nov 1934 | Box 118 \ 2 scan0120 | |
| Telegram confirming the successful test of a Bentley bumper bar. | 26th Nov 1934 | Box 118 \ 2 scan0121 | |
| Fitting and testing of a bumper bar for Mr. Fairey's car, referencing scheme N.S.4236. | 26th Nov 1934 | Box 118 \ 2 scan0122 | |
| Instructions for fitting a Wilmot Breedon stabilizing bumper to existing Bentley cars. | 27th Nov 1934 | Box 118 \ 2 scan0123 | |
| Blueprint of a Stabilising Bumper for a Bentley. | 27th Nov 1934 | Box 118 \ 2 scan0124 | |
| Suggested method for mounting a stabilising bumper on existing Bentley cars. | 16th Jan 1936 | Box 118 \ 2 scan0125 | |
| Drawing comparing a currently supplied bush with a future standardized version. | 27th Nov 1934 | Box 118 \ 2 scan0126 | |
| Particulars and prints for a Bumper Bar, referencing previous correspondence. | 27th Nov 1934 | Box 118 \ 2 scan0127 | |
| Request to construct a rig for measuring Harmonic Stabiliser Bumper Bar frequency. | 28th Nov 1934 | Box 118 \ 2 scan0128 | |
| Repositioning of the front number plate on a Bentley due to obstruction by the stabiliser bumper. | 28th Nov 1934 | Box 118 \ 2 scan0129 | |
| Requesting parts for starting handle modifications to enable cranking on Bentley cars fitted with bumper bars. | 30th Nov 1934 | Box 118 \ 2 scan0130 | |
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