| Description | Date | Identifier | |
| Instruction to fit a spot-welded battery box to a Wraith Bumper Chassis, replacing the previous riveted version. | 31th Aug 1937 | Box 119 \ 1 scan0044 | |
| Request to build and fit a raised engine mounting to a Bentley Bumper chassis. | 2nd Sep 1937 | Box 119 \ 1 scan0045 | |
| Instruction to fit a sample spherical rubber joint to the rear damper connecting links on a Bentley Bumper Chassis. | 10th Sep 1937 | Box 119 \ 1 scan0046 | |
| Work order detailing parts to be fitted to a Phantom III Bumper Chassis. | 13th Sep 1937 | Box 119 \ 1 scan0047 | |
| Requesting the replacement and relocation of rear springs on a Phantom III Bumper Chassis. | 18th Sep 1937 | Box 119 \ 1 scan0048 | |
| Instruction to fit a new 1350 lbs production rear spring with rubbers to the off side of a PH.III Bumper Chassis. | 22th Sep 1937 | Box 119 \ 1 scan0049 | |
| Request to rebuild a Wraith Bumper Chassis with a list of eleven specific modifications and new parts. | 1st Oct 1937 | Box 119 \ 1 scan0050 | |
| Requesting the fitting of new Firths springs to a Wraith bumper chassis. | 12th Oct 1937 | Box 119 \ 1 scan0051 | |
| Requesting the replacement of a broken offside rear spring on a Bentley II Bumper Chassis. | 12th Oct 1937 | Box 119 \ 1 scan0052 | |
| Request to fit strengthened rear shock damper levers to a Wraith Bumper Chassis. | 14th Oct 1937 | Box 119 \ 1 scan0053 | |
| Request to replace a broken off-side rear spring on a Ph.III Bumper Chassis. | 22th Oct 1937 | Box 119 \ 1 scan0054 | |
| Summary of performance and failure tests conducted on rear springs for the Phantom Bump Chassis. | 28th Sep 1937 | Box 119 \ 1 scan0055 | |
| List of required modifications and repairs for a Bentley III Bumper Chassis. | 11th Nov 1937 | Box 119 \ 1 scan0056 | |
| Investigation report into a leaking Wraith Bumper Chassis petrol tank following endurance testing. | 18th Nov 1937 | Box 119 \ 1 scan0057 | |
| Modifications to tank end plates and baffles to address structural weaknesses. | 18th Nov 1937 | Box 119 \ 1 scan0058 | |
| Blueprint detailing the design and material specification for an offside and nearside baffle. | 22th Nov 1937 | Box 119 \ 1 scan0059 | |
| Request to manufacture and test a petrol tank for a Bentley III bump chassis. | 22th Nov 1937 | Box 119 \ 1 scan0060 | |
| Failure report concerning a Torque Arm and Support Plate for a Bentley III Bumper Chassis. | 4th Dec 1937 | Box 119 \ 1 scan0061 | |
| Photograph showing the failure of a Torque Arm and a Support Plate from a Bentley III Bumper Chassis after testing. | 4th Jan 1938 | Box 119 \ 1 scan0062 | |
| The failure of a rear end spring on a Bentley III Bumper Chassis. | 4th Jan 1938 | Box 119 \ 1 scan0063 | |
| The failure of Silentbloc and Inlox bearings for the axle yoke on a Bentley III bumper chassis. | 4th Jan 1938 | Box 119 \ 1 scan0064 | |
| Programme to investigate low speed wobbles on the Bentley III bumper chassis during drum testing. | 5th Jan 1938 | Box 119 \ 1 scan0065 | |
| Test program for investigating wheel flutter on the E.III Bumper Chassis. | 5th Jan 1938 | Box 119 \ 1 scan0066 | |
| Requesting the fitting of different rubber bushes to the front suspension of a new bumper chassis. | 11th Jan 1938 | Box 119 \ 1 scan0067 | |
| The failure and investigation of rubber bearings in a bumper chassis front suspension. | 11th Jan 1938 | Box 119 \ 1 scan0068 | |
| List showing the running time of various upper and lower bearings. | 17th Jan 1938 | Box 119 \ 1 scan0069 | |
| Stud and bolt failures on a Wraith bumper chassis, requesting modifications. | 17th Jan 1938 | Box 119 \ 1 scan0070 | |
| Request to supply and fit a pressed steel torque arm to a Bentley III bumper chassis. | 2nd Feb 1938 | Box 119 \ 1 scan0071 | |
| Giving instructions to weld and strengthen the Bentley III bumper chassis frame. | 9th Feb 1938 | Box 119 \ 1 scan0072 | |
| The failure of a Near Side top rubber buffer on a Wraith III bumper chassis front suspension. | 12th Feb 1938 | Box 119 \ 1 scan0073 | |
| Photograph of a damaged top rubber buffer from a Wraith III bumper chassis front suspension after testing. | 16th Feb 1938 | Box 119 \ 1 scan0074 | |
| Request to manufacture and fit four body brackets for a Bentley III new bumper chassis. | 16th Feb 1938 | Box 119 \ 1 scan0075 | |
| Fitting PD.97 needle bearings to the Wraith bumper chassis. | 16th Feb 1938 | Box 119 \ 1 scan0076 | |
| Request to obtain deflection curves for Bentley III rubber bearings. | 17th Feb 1938 | Box 119 \ 1 scan0077 | |
| Request to create a temporary fixture for a destructive test on a new B.III stabilising bumper bar. | 23th Feb 1938 | Box 119 \ 1 scan0078 | |
| The failure of Bentley III bumper chassis torque arms made from aluminium and steel. | 25th Feb 1938 | Box 119 \ 1 scan0079 | |
| Photograph of a failed aluminium torque arm from a Bentley III bump chassis. | 2nd Feb 1938 | Box 119 \ 1 scan0080 | |
| Photograph of a failed pressed steel torque arm from a Bentley III bump chassis after testing. | 2nd Feb 1938 | Box 119 \ 1 scan0081 | |
| Close-up photograph of a vehicle trim component with a polished chrome end cap. | 14th Mar 1938 | Box 119 \ 1 scan0082 | |
| Requesting a bumper test for the needle bearing pivots on the Wraith model. | 14th Mar 1938 | Box 119 \ 1 scan0083 | |
| The failure of petrol tank straps on a Bentley III chassis during bump testing, with analysis and proposed solutions. | 18th Mar 1938 | Box 119 \ 1 scan0084 | |
| Improvements to tank strap attachments, suggesting moving rivets and using spot welding. | 18th Mar 1938 | Box 119 \ 1 scan0085 | |
| Drawing and note about the Bentley III Petrol Tank Support. | 22th Mar 1938 | Box 119 \ 1 scan0086 | |
| Confirming the submission of two failed Bentley III front coil springs for examination. | 22th Mar 1938 | Box 119 \ 1 scan0087 | |
| Proposing a new chart to track component hours during bump tests, including a sample chart for a Bentley III chassis. | 13th Apr 1938 | Box 119 \ 1 scan0088 | |
| Request to remove the petrol tank from a Wraith Bump Chassis for examination of its baffles. | 13th Apr 1938 | Box 119 \ 1 scan0089 | |
| Request to fit and bump test 0.4 carbon rear axle tubes and cast steel spring pads on the Wraith chassis. | 27th Apr 1938 | Box 119 \ 1 scan0090 | |
| Request to make and fit two struts for a Bentley III Bump Chassis. | 4th May 1938 | Box 119 \ 1 scan0091 | |
| Laboratory report detailing the examination of a failed Wraith spring pot bracket. | 3rd May 1938 | Box 119 \ 1 scan0092 | |
| Laboratory report showing the micrograph analysis of a failed spring pot bracket from a Wraith model. | 2nd May 1938 | Box 119 \ 1 scan0093 | |
| Condition report on a Wraith III bumper chassis front suspension unit after testing. | 4th May 1938 | Box 119 \ 1 scan0094 | |
| Broken lower pivot bearing flange and the condition of the front crossmember assembly. | 4th May 1938 | Box 119 \ 1 scan0095 | |
| Photograph showing a Lower Pivot Bearing's outer race after testing on a Bumper Chassis. | 4th May 1938 | Box 119 \ 1 scan0096 | |
| Photograph of a fractured main lever housing after testing on a Bumper Chassis. | 7th May 1938 | Box 119 \ 1 scan0097 | |
| Urgent order of front rebound buffers for bump tests. | 7th May 1938 | Box 119 \ 1 scan0098 | |
| Laboratory report on the failure analysis of Bentley III front coil springs due to decarburisation. | 9th May 1938 | Box 119 \ 1 scan0099 | |
| Laboratory report with two microscopic images of a Bentley III Front Coil Spring. | 9th May 1938 | Box 119 \ 1 scan0100 | |
| Laboratory report with micrographs showing an analysis of Bentley III front coil springs. | 9th May 1938 | Box 119 \ 1 scan0101 | |
| Requesting replacement and additional parts for a Bentley Bump Chassis. | 11th May 1938 | Box 119 \ 1 scan0102 | |
| Component failures on a Bentley III Bumper Chassis, specifically a fractured side stay and a broken front suspension coil spring. | 11th May 1938 | Box 119 \ 1 scan0103 | |
| Photograph showing a fractured spare wheel carrier stay after testing. | 11th May 1938 | Box 119 \ 1 scan0104 | |
| Photograph showing a fractured N.S. Coil Spring after a 20-hour test on a Bumper Chassis. | 17th May 1938 | Box 119 \ 1 scan0105 | |
| 50-hour test run of the Bentley III bumper chassis, detailing spring performance and proposed revisions. | 17th May 1938 | Box 119 \ 1 scan0106 | |
| Test report on a Bentley III Bumper Chassis detailing failures and recommended modifications during a 50-hour test. | 14th May 1938 | Box 119 \ 1 scan0107 | |
| Component failures and subsequent analysis or actions taken. | 14th May 1938 | Box 119 \ 1 scan0108 | |
| Summary report on rear springs for the Phantom Bump Chassis, detailing test runs and failures. | 28th Sep 1937 | Box 119 \ 1 scan0109 | |
| The failure of spare wheel carrier support brackets on a Bentley III Bumper Chassis after testing. | 19th May 1938 | Box 119 \ 1 scan0110 | |
| Photograph showing fractured spare wheel carrier support brackets after a durability test. | 27th May 1938 | Box 119 \ 1 scan0111 | |
| Requesting the transport and alteration of a workbench for the bump house. | 27th May 1938 | Box 119 \ 1 scan0112 | |
| Requesting the teardown of a Bentley III Bumper Chassis front suspension for examination after a 50-hour test. | 8th Jun 1938 | Box 119 \ 1 scan0113 | |
| Requesting the replacement of a broken N.S. rear spring on a Phantom III Bumper Chassis. | 10th Jun 1938 | Box 119 \ 1 scan0114 | |
| The test run of the Bentley III bump chassis front end, detailing suspension component performance and proposed improvements. | 14th Jun 1938 | Box 119 \ 1 scan0115 | |
| Test report on failures and modifications for a Bentley III Bumper Chassis during a 50-hour front end test. | 14th Jun 1938 | Box 119 \ 1 scan0116 | |
| Component failures and proposed remedies for a chassis. | 14th Jun 1938 | Box 119 \ 1 scan0117 | |
| Component failures, testing outcomes, and proposed design modifications. | 14th Jun 1935 | Box 119 \ 1 scan0118 | |
| Instructing the replacement of the O.S. rear spring on a Phantom III Bumper Chassis. | 18th Jun 1938 | Box 119 \ 1 scan0119 | |
| Outlining the procedure for a bump test on a Wraith rear axle to compare materials. | 30th Jun 1938 | Box 119 \ 1 scan0120 | |
| Request to build up the front dampers for the Bentley III Bumper Chassis using specific parts. | 9th Jul 1938 | Box 119 \ 1 scan0121 | |
| Requesting the front wheels be fixed on a bump chassis to test the suspension under brake torque. | 17th Aug 1938 | Box 119 \ 1 scan0122 | |
| Damaged front shock dampers from a Bentley III Bumper Chassis. | 18th Aug 1938 | Box 119 \ 1 scan0123 | |
| Photograph showing damaged front shock damper parts removed from a Bentley III. | 23th Aug 1938 | Box 119 \ 1 scan0124 | |
| Test report on a B.III bump chassis front end after a 50-hour run on 3 inch Cams. | 23th Aug 1938 | Box 119 \ 1 scan0125 | |
| Component failures and modifications for various vehicle parts. | 23th Aug 1938 | Box 119 \ 1 scan0126 | |
| Component failures and improvements for springs, shafts, glands, and valves. | 23th Aug 1938 | Box 119 \ 1 scan0127 | |
| Modifications and issues with engine valves, pistons, and main casings. | 23th Aug 1938 | Box 119 \ 1 scan0128 | |
| Failures and recommendations from a 50-hour front-end bumper test on a Bentley III. | 23th Aug 1938 | Box 119 \ 1 scan0129 | |
| Test report detailing a series of damper and valve failures with corresponding remarks and recommendations. | 23th Aug 1938 | Box 119 \ 1 scan0130 | |
| The production schedule for a Wraith Bump Chassis. | 25th Aug 1938 | Box 119 \ 1 scan0131 | |
| The specifications for building a Wraith III Bump Chassis. | 22th Aug 1938 | Box 119 \ 1 scan0132 | |
| Arranging for bolts to be fitted to a bumper chassis and a 16,000-mile car for static testing. | 25th Aug 1938 | Box 119 \ 1 scan0133 | |
| Comparison of bolts from Acton Bolt Ltd. with R.R. bolts, detailing cost, manufacturing advantages, and testing recommendations. | 22th Aug 1938 | Box 119 \ 1 scan0134 | |
| Request to manufacture a rod for a spring rate test apparatus. | 26th Aug 1938 | Box 119 \ 1 scan0135 | |
| Requesting inspection and updates to a Bentley III Bumper Chassis. | 5th Sep 1938 | Box 119 \ 1 scan0136 | |
| Instruction to fit a welded petrol tank to the Bentley III Bump Chassis. | 6th Sep 1938 | Box 119 \ 1 scan0137 | |
| Inspection report on a Bentley III Bumper Chassis after 50 hours of testing. | 15th Sep 1938 | Box 119 \ 1 scan0138 | |
| The condition of the cross steering system components. | 15th Sep 1938 | Box 119 \ 1 scan0139 | |
| Photograph of a fractured pivot pin from a Bentley III bumper chassis after endurance testing. | 15th Sep 1938 | Box 119 \ 1 scan0140 | |
| Photograph showing a cracked torque arm from a Bentley III bumper chassis after testing. | 15th Sep 1938 | Box 119 \ 1 scan0141 | |
| Sketch showing before and after test measurements for a Bentley III chassis Silentbloc bearing. | 23th Sep 1938 | Box 119 \ 1 scan0142 | |
| Instructions for rebuilding a Bentley Bump Chassis. | 23th Sep 1938 | Box 119 \ 1 scan0143 | |
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