| Description | Date | Identifier | |
| Cranking rig tests performed on Myth rear springs supplied by Toledo Woodhead. | 1st Jul 1941 | Box 154a \ 2 scan0356 | |
| Suspension component testing, including life expectancy calculations and specific failure analysis of springs. | 1st Jul 1941 | Box 154a \ 2 scan0357 | |
| Proposed alterations to a T.W. spring design based on test results to improve durability and reduce friction. | 1st Jul 1941 | Box 154a \ 2 scan0358 | |
| Graph plotting the life cycle test results for various leaf spring and suspension systems. | 1st Jul 1941 | Box 154a \ 2 scan0359 | |
| Visit to Jonas Woodhead Ltd. in Leeds to discuss a cheaper, post-war, fully lubricated spring design. | 1st Jul 1941 | Box 154a \ 2 scan0360 | |
| Comparison of leaf spring lubrication and manufacturing methods, with proposals for a new spring design. | 1st Jul 1941 | Box 154a \ 2 scan0361 | |
| The process of removing errors in leaf curvature and analyzing stresses in leaf springs. | 1st Jul 1941 | Box 154a \ 2 scan0362 | |
| Detailed drawing for the end of a rear spring, part number D.O. 17227. | 30th Oct 1939 | Box 154a \ 2 scan0363 | |
| Letter to Messrs. Jonas Woodhead & Sons Ltd. proposing to fit lubricated front springs. | 30th Jul 1941 | Box 154a \ 2 scan0364 | |
| Internal request to the Spring Shop to produce a total of twelve springs of four different specifications. | 31th Jul 1941 | Box 154a \ 2 scan0365 | |
| Letter from Jonas Woodhead & Sons, Ltd. regarding the manufacture of lubricated front springs. | 11th Aug 1941 | Box 154a \ 2 scan0366 | |
| To Samuel Fox & Co. Ltd. discussing requirements and design suggestions for post-war car springs. | 19th Aug 1941 | Box 154a \ 2 scan0367 | |
| Letter requesting information on how to provide lubrication for springs made from grooved section steel. | 19th Aug 1941 | Box 154a \ 2 scan0368 | |
| Blueprint detailing the specifications and dimensions of a rear spring. | 4th Mar 1937 | Box 154a \ 2 scan0369 | |
| Data sheet comparing steering specifications for various chassis models. | 4th Mar 1937 | Box 154a \ 2 scan0370 | |
| Comparison table of rear axle particulars for Bentley, P.3, and Wraith models. | 4th Mar 1937 | Box 154a \ 2 scan0371 | |
| Comparison table of suspension specifications for various car models. | 4th Mar 1937 | Box 154a \ 2 scan0372 | |
| Steering and suspension data comparison table for various car models. | 7th Nov 1941 | Box 154a \ 2 scan0373 | |
| Request to return two non-conforming car road springs to the supplier, Jonas Woodhead & Sons, Ltd. | 7th Nov 1941 | Box 154a \ 2 scan0374 | |
| Letter to a supplier about incorrectly manufactured leaf springs being returned. | 7th Nov 1941 | Box 154a \ 2 scan0375 | |
| Standardisation sheet for 20 HP & 40/50 HP chassis, listing parts not yet fitted to production models. | 6th Jan 1931 | Box 154a \ 3 scan0001 | |
| Log detailing modifications for the 40/50 HP Chassis, page 2. | 6th Jan 1931 | Box 154a \ 3 scan0002 | |
| Delays in Standardisation Sheets due to cost. | 7th Jan 1931 | Box 154a \ 3 scan0003 | |
| List of modifications and updates to chassis parts, with their associated reference numbers and dates, marked as sent for costing. | 1st Jan 1931 | Box 154a \ 3 scan0004 | |
| The completion of standardisation sheets for the 25 HP, 18-G4 model. | 15th Jan 1931 | Box 154a \ 3 scan0005 | |
| Completion of standardisation sheets and how to mark items not for production. | 16th Jan 1931 | Box 154a \ 3 scan0006 | |
| Standardisation sheet listing parts yet to be fitted to 20 HP and 40/50 HP production chassis. | 5th Feb 1931 | Box 154a \ 3 scan0007 | |
| Log sheet detailing the status of modifications or parts, with issue and completion dates. | 5th Feb 1931 | Box 154a \ 3 scan0008 | |
| The status and details of various standardisation sheets. | 6th Feb 1931 | Box 154a \ 3 scan0009 | |
| Listing standard sheets held up awaiting signature for various components. | 18th Feb 1931 | Box 154a \ 3 scan0010 | |
| List of standardisation sheets awaiting signature for various automotive and aero engine parts. | 19th Feb 1931 | Box 154a \ 3 scan0011 | |
| Standardisation sheet for 20HP & 40/50 HP chassis, listing parts not yet fitted to production. | 7th Mar 1931 | Box 154a \ 3 scan0012 | |
| Log of modifications for the 40/50 HP Chassis, detailing changes and completion dates. | 21th Feb 1931 | Box 154a \ 3 scan0013 | |
| Standardisation sheet for parts not yet fitted to production 20HP and 40/50HP chassis. | 9th Apr 1931 | Box 154a \ 3 scan0014 | |
| Commenting on standardization sheets for rubber in steering column brackets, removal of rear engine feet, and longer skirt pistons. | 24th Apr 1931 | Box 154a \ 3 scan0015 | |
| Listing standardisation sheets held up awaiting signature. | 27th Apr 1931 | Box 154a \ 3 scan0016 | |
| Two standardisation sheets, one for a Condor propeller shaft and the other for a switchbox. | 5th May 1931 | Box 154a \ 3 scan0017 | |
| Standardisation sheet for the 20 HP & 40/50 HP chassis models. | 6th May 1931 | Box 154a \ 3 scan0018 | |
| Standardisation sheet memo regarding low rating front road springs and a 'Kismet' tyre tester. | 22th May 1931 | Box 154a \ 3 scan0019 | |
| Standardisation sheet for parts not yet fitted to production 20/25 & 40/50 HP chassis. | 10th Jun 1931 | Box 154a \ 3 scan0020 | |
| Standardisation sheet for the 20/25 & 40/50 HP chassis, listing parts not yet fitted to production. | 14th Jul 1931 | Box 154a \ 3 scan0021 | |
| Standardisation sheet for parts not yet fitted to production 20/25 HP and 40/50 HP chassis. | 2nd Sep 1931 | Box 154a \ 3 scan0022 | |
| Standardisation sheet listing parts not yet fitted to production chassis for 20/25 HP & 40/50 HP models. | 30th Sep 1931 | Box 154a \ 3 scan0023 | |
| Outlining agreements and remarks on several standardisation sheets. | 29th Sep 1931 | Box 154a \ 3 scan0024 | |
| Requesting the status of uncompleted Standardisation Sheets that are awaiting a signature. | 4th Nov 1931 | Box 154a \ 3 scan0025 | |
| List of uncompleted standardisation sheets for various chassis parts, detailing their part number and date sent to costing. | 21th Jul 1931 | Box 154a \ 3 scan0026 | |
| Standardisation sheet for parts not yet fitted to 20/25 HP and 40/50 HP production chassis. | 3rd Nov 1931 | Box 154a \ 3 scan0027 | |
| From Sg to Hs clarifying the status and location of various standardisation sheets. | 5th Nov 1931 | Box 154a \ 3 scan0028 | |
| Listing the current status of various standardisation sheets for chassis parts. | 6th Nov 1931 | Box 154a \ 3 scan0029 | |
| List of chassis modifications, part changes, and their approval status. | 5th Nov 1931 | Box 154a \ 3 scan0030 | |
| Listing outstanding Standardisation Sheets that have not been received, with handwritten status updates. | 7th Nov 1931 | Box 154a \ 3 scan0031 | |
| Standardisation sheet listing parts not yet fitted to production 20/25 HP and 40/50 HP chassis. | 1st Dec 1931 | Box 154a \ 3 scan0032 | |
| List of modifications and specifications for the 40/50 HP Chassis continued. | 31th Dec 1931 | Box 154a \ 3 scan0033 | |
| Standardisation sheet listing parts not yet fitted to production chassis for 20/25 HP and 40/50 HP models. | 5th Jan 1932 | Box 154a \ 3 scan0034 | |
| Log of engineering changes and updates for the 40/50 HP Chassis during late 1931. | 5th Jan 1932 | Box 154a \ 3 scan0035 | |
| Standardisation sheet listing parts not yet fitted to production 20/25 HP and 40/50 HP chassis. | 3rd Feb 1932 | Box 154a \ 3 scan0036 | |
| Request for standardisation sheets for the 20/25 HP. Chassis 'U' Series. | 17th Feb 1932 | Box 154a \ 3 scan0037 | |
| Requesting the urgent delivery of signed standardisation sheets to proceed with costings for various parts. | 19th Feb 1932 | Box 154a \ 3 scan0038 | |
| Standardization sheet listing parts not yet fitted to 20/25 HP & 40/50 HP production chassis. | 3rd Mar 1932 | Box 154a \ 3 scan0039 | |
| Log of continued modifications and component updates for the 20/25 HP chassis. | 3rd Mar 1932 | Box 154a \ 3 scan0040 | |
| Schedule of parts and modifications for the 40/50 HP Chassis. | 3rd Mar 1932 | Box 154a \ 3 scan0041 | |
| Awaiting the receipt of signed standardisation sheets to process cost figures. | 14th Mar 1932 | Box 154a \ 3 scan0042 | |
| Standardisation sheet listing parts not yet fitted to production 20/25 HP & 40/50 HP chassis. | 2nd May 1932 | Box 154a \ 3 scan0043 | |
| List of chassis part updates and production notes for the 20/25 HP and 40/50 HP models. | 2nd May 1932 | Box 154a \ 3 scan0044 | |
| Correction to the Standardisation Sheets regarding the series introduction of the 18-gallon petrol tank for the 20/25 HP chassis. | 6th May 1932 | Box 154a \ 3 scan0045 | |
| Standardisation sheet for parts not yet fitted to 20/25 HP and 40/50 HP production chassis. | 1st Jun 1932 | Box 154a \ 3 scan0046 | |
| Mandating the inclusion of cost figures on standardisation sheets before they are circulated for signatures. | 20th Jun 1932 | Box 154a \ 3 scan0047 | |
| Procedure for standardisation sheets, including costs and delays, with a specific note on 20/25 HP crankshafts. | 21th Jun 1932 | Box 154a \ 3 scan0048 | |
| Chasing signatures for two outstanding Standardisation Sheets concerning hydraulic dampers and a synchro-mesh gearbox. | 29th Jun 1932 | Box 154a \ 3 scan0049 | |
| Note on standardisation sheets for the 20/25 HP and 40/50 HP chassis, concerning parts not yet fitted. | 4th Jul 1932 | Box 154a \ 3 scan0050 | |
| Status and return of standardisation sheets X.No.5520 and X.No.5310. | 4th Jul 1932 | Box 154a \ 3 scan0051 | |
| Standardisation sheet listing parts not yet fitted to the 20/25 HP & 40/50 HP chassis. | 1st Sep 1932 | Box 154a \ 3 scan0052 | |
| Minutes from a conference in Derby, following up on outstanding standardisation sheets for various components. | 30th Sep 1932 | Box 154a \ 3 scan0053 | |
| Minutes of a conference held in Derby in September 1932, discussing bonnet fasteners, dynamos, and braking. | 3rd Oct 1932 | Box 154a \ 3 scan0054 | |
| Standardisation sheet listing parts not yet fitted to 20/25 HP & 40/50 HP production chassis. | 5th Oct 1932 | Box 154a \ 3 scan0055 | |
| List of standardisation sheets held up awaiting costing and signature. | 11th Oct 1932 | Box 154a \ 3 scan0056 | |
| List of part modifications with corresponding chassis models and dates sent to the cost department. | 11th Sep 1932 | Box 154a \ 3 scan0057 | |
| Log entry for a Semi Expanding Carburetter part for a Phantom II chassis. | 29th Sep 1932 | Box 154a \ 3 scan0058 | |
| Returning a list of signed standardisation sheets for various vehicle components. | 13th Oct 1932 | Box 154a \ 3 scan0059 | |
| Standardization sheet listing parts not yet fitted to production 20/25 HP and 40/50 HP chassis. | 4th Nov 1932 | Box 154a \ 3 scan0060 | |
| Log sheet detailing modifications and updates to the 40/50 HP. Chassis. | 4th Nov 1932 | Box 154a \ 3 scan0061 | |
| Standardisation sheet for parts not yet fitted to 20/25 HP & 40/50 HP production chassis. | 7th Dec 1932 | Box 154a \ 3 scan0062 | |
| Delayed standardisation sheet for a 25 HP Synchro Mesh Gearbox, awaiting a signature. | 20th Dec 1932 | Box 154a \ 3 scan0063 | |
| Listing standardisation sheets held up awaiting cost and signature. | 29th Dec 1932 | Box 154a \ 3 scan0064 | |
| List of engineering parts and modifications sent for costing for various chassis models in 1932. | 29th Dec 1932 | Box 154a \ 3 scan0065 | |
| The monthly return of standardisation sheets, detailing the deletion of a main petrol filter. | 7th Jan 1933 | Box 154a \ 3 scan0066 | |
| Request for a summary drawing to standardize J.III type shock absorbers for the Phantom and 20/25 HP models. | 2nd Feb 1933 | Box 154a \ 3 scan0067 | |
| Standardisation sheet for parts not yet fitted to 20/25 HP and 40/50 HP production chassis. | 13th Feb 1933 | Box 154a \ 3 scan0068 | |
| The circulation of two new standardisation sheets for J.III shock dampers. | 24th Feb 1933 | Box 154a \ 3 scan0069 | |
| Standardisation sheet for parts not yet fitted to 20/25 HP & 40/50 HP production chassis. | 2nd Mar 1933 | Box 154a \ 3 scan0070 | |
| Clarifying that the Lucas H.F.722 electric horns are only standard for the Phantom II chassis, not the 20/25, due to profit margins. | 15th Mar 1933 | Box 154a \ 3 scan0071 | |
| Listing chassis standardisation sheets awaiting cost and signature. | 22th Mar 1933 | Box 154a \ 3 scan0072 | |
| Log sheet detailing parts sent for costing for the 25 HP, and Phantom II chassis. | 22th Mar 1933 | Box 154a \ 3 scan0073 | |
| From Hs. to P.N. regarding Chassis Standardisation Sheets awaiting signature. | 22th Mar 1933 | Box 154a \ 3 scan0074 | |
| Reply regarding chassis standardisation sheets, sending some but unable to locate a specific Engine Coupling sheet. | 23th Mar 1933 | Box 154a \ 3 scan0075 | |
| Standardisation sheet for 20/25 HP & 40/50 HP chassis parts not yet fitted to production. | 5th Apr 1933 | Box 154a \ 3 scan0076 | |
| Standardisation sheet for parts not yet fitted to production 20/25 HP and 40/50 HP chassis. | 4th May 1933 | Box 154a \ 3 scan0077 | |
| Standardisation sheet for parts not yet fitted to production 20/25 HP & 40/50 HP chassis. | 1st Jun 1933 | Box 154a \ 3 scan0078 | |
| Listing chassis standardisation sheets that are held up awaiting costing and a signature. | 12th Jun 1933 | Box 154a \ 3 scan0079 | |
| The status of chassis standardisation sheets. | 13th Jun 1933 | Box 154a \ 3 scan0080 | |
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