| Description | Date | Identifier | |
| Fitting larger shims for non-standard steering roller followers on the 35-EX model. | 21th Dec 1936 | Box 95 \ 1 scan0377 | |
| Cost-saving analysis regarding plating the steering tube sleeve versus the whole tube for 25/30HP and Phantom III models. | 13th Jan 1937 | Box 95 \ 1 scan0378 | |
| Diagnostic guide for low-speed wobbles on the Phantom III model. | 29th Jan 1937 | Box 95 \ 1 scan0379 | |
| Standardisation of a split upper ball pad in the cross steering tube joint for the Phantom III to prevent low speed wobbles. | 15th Jan 1937 | Box 95 \ 1 scan0380 | |
| Proposal for the standardization of parts for the 'B' Series, including the estimated cost of new tools. | 1st Nov 1923 | Box 95 \ 1 scan0381 | |
| Steering specification for use with Wraith wheel movement on a Phantom III vehicle. | 10th Feb 1937 | Box 95 \ 1 scan0382 | |
| Machining difficulties with experimental pieces due to increased spotfacing diameter. | 1st Mar 1937 | Box 95 \ 1 scan0383 | |
| Requesting to fit one of two aluminium steering control quadrants to car 37-EX. | 1st Mar 1937 | Box 95 \ 1 scan0384 | |
| Modification of a cross bolt in the Phantom III steering box for Wraith II wheel movement. | 9th Mar 1937 | Box 95 \ 1 scan0385 | |
| The dispatch of special springs and parts for the steering of model 35-EX. | 16th Mar 1937 | Box 95 \ 1 scan0386 | |
| List of new and old parts for the Phantom III chassis and Wraith II wheel movements. | 5th Apr 1937 | Box 95 \ 1 scan0387 | |
| Parts list from Section 7042, detailing component replacements and additions. | 5th Apr 1937 | Box 95 \ 1 scan0388 | |
| Continued list of parts for section 7042, with a comparison of LOP's G.83747 and G.85316. | 5th Apr 1937 | Box 95 \ 1 scan0389 | |
| List of new, replaced, required, and no longer required parts for the Phantom III chassis, specifically concerning Wraith II wheel movements. | 5th Apr 1937 | Box 95 \ 1 scan0390 | |
| Issue with cross steering tubes being too short on chassis 39-EX and the approved solution. | 6th Apr 1937 | Box 95 \ 1 scan0391 | |
| Steering issues on the Phantom III model, concerning the use of packing washers and a cracked roller race. | 7th Apr 1937 | Box 95 \ 1 scan0392 | |
| New adjusting shims for the steering column and box on Phantom III and 25/30 HP chassis. | 8th Apr 1937 | Box 95 \ 1 scan0393 | |
| Cost investigation for producing the Phantom III Steering Cam Tube. | 11th Apr 1937 | Box 95 \ 1 scan0394 | |
| Steering issues like 'joggles' and 'sponginess' on the 35-EX Phantom III, and considering adjustments to spring stiffness. | 11th Apr 1937 | Box 95 \ 1 scan0395 | |
| Official order for 8 springs to be sent to Geo. Salter & Co. Ltd. | 13th Apr 1937 | Box 95 \ 1 scan0396 | |
| Letter to Geo. Salter & Co. Ltd. urgently requesting helical compression springs with specific dimensions. | 13th Apr 1937 | Box 95 \ 1 scan0397 | |
| Letter from Geo. Salter & Co. Ltd. confirming the priority dispatch of springs by post. | 14th Apr 1937 | Box 95 \ 1 scan0398 | |
| Forwarding three blueprints for an F.89511 Roller for a Phantom III chassis steering column. | 24th Apr 1937 | Box 95 \ 1 scan0399 | |
| Requesting a rig test on Phantom III cross steering tube joints to determine if friction falls off. | 28th Apr 1937 | Box 95 \ 1 scan0400 | |
| Steering wobbles on the Phantom III model. | 3rd May 1937 | Box 95 \ 1 scan0401 | |
| Problem with the Phantom III cross steering tube joints, noting that the split contact is unsuccessful. | 4th May 1937 | Box 95 \ 1 scan0402 | |
| Blueprint of a ball joint assembly with annotations in French. | 13th May 1937 | Box 95 \ 1 scan0403 | |
| Letter to Geo. Salter & Co. Ltd. seeking confirmation of a wire size for special compression springs. | 13th May 1937 | Box 95 \ 1 scan0404 | |
| Low speed wobbles, requesting examples of a split ball pad G.84934 that have been turning in their housings. | 13th May 1937 | Box 95 \ 1 scan0405 | |
| Letter confirming the specifications for special compression springs. | 14th May 1937 | Box 95 \ 1 scan0406 | |
| Analysis of low-speed wobble caused by issues with cross steering tub joints. | 19th May 1937 | Box 95 \ 1 scan0407 | |
| The coefficient of friction for steering ball pads with test data and proposed improvements to finishing procedures. | 19th May 1937 | Box 95 \ 1 scan0408 | |
| Joint loads and the testing of new pad materials after mileage on the chassis. | 19th May 1937 | Box 95 \ 1 scan0409 | |
| Design and materials for Phantom III Cross Steering Tube Joints. | 24th May 1937 | Box 95 \ 1 scan0410 | |
| Modifications to the Phantom III cross steering tube joints, including finishing methods for pads and using a stronger spring. | 24th May 1937 | Box 95 \ 1 scan0411 | |
| Requesting the creation of yoke pieces to test a reduced castor angle on a Phantom III vehicle. | 28th May 1937 | Box 95 \ 1 scan0412 | |
| Production issues with malleable cast iron steering box castings for the Phantom III. | 10th Jun 1937 | Box 95 \ 1 scan0413 | |
| Order for six steering cams for the Wraith model from Adamant Engineering Co. | 11th Jun 1937 | Box 95 \ 1 scan0414 | |
| Test report on steering with Wraith wheel movement and suspension levers, detailing spring flexibility tests to reduce joggles. | 17th Jun 1937 | Box 95 \ 1 scan0415 | |
| Rig tests on steering ball joints and a request for new parts made of casehardened and soft steel. | 26th Jun 1937 | Box 95 \ 1 scan0416 | |
| Standardisation of a spring for the Phantom III cross steering tube ball joints to exert a higher load. | 29th May 1937 | Box 95 \ 1 scan0417 | |
| The standardization of parts for the Phantom III 'E' Series chassis. | 15th Jan 1937 | Box 95 \ 1 scan0418 | |
| Requesting a drawing alteration for a steering roller follower for Wraith wheel movement suspension. | 8th Jul 1937 | Box 95 \ 1 scan0419 | |
| Endurance tests conducted on large type steering rollers at different loads. | 5th Aug 1937 | Box 95 \ 1 scan0420 | |
| The performance of cross steering tube joints with ball pads on a Phantom III vehicle. | 5th Aug 1937 | Box 95 \ 1 scan0421 | |
| Tests conducted on an experimental axle, focusing on steering performance and comparison with a standard axle. | 22th Sep 1926 | Box 95 \ 1 scan0422 | |
| Test report on steering geometry, stability, and the effects of different pivot axle configurations. | 22th Sep 1926 | Box 95 \ 1 scan0423 | |
| The steering performance and handling characteristics of a new type axle. | 22th Sep 1926 | Box 95 \ 1 scan0424 | |
| Steering performance and pivot inclination following the introduction of a new axle. | 22th Sep 1926 | Box 95 \ 1 scan0425 | |
| Page discussing steering tests on axles with vertical king pins and a diagram of transversally raked pivots. | 22th Sep 1936 | Box 95 \ 1 scan0426 | |
| Request for the return of a failed roller follower and its fragments from a 32-EX steering system for analysis. | 19th Aug 1937 | Box 95 \ 1 scan0427 | |
| Discussion about the effects of transverse rake and king pin inclination on steering effort, with reference to tests on a 20 HP axle. | 22th Sep 1926 | Box 95 \ 1 scan0428 | |
| Comparison of transverse pivot inclination and resultant steering effort for different axle types. | 22th Sep 1936 | Box 95 \ 1 scan0429 | |
| Comparative diagram analyzing different axle and steering pivot arrangements in order of steering heaviness. | 19th Aug 1937 | Box 95 \ 1 scan0430 | |
| Request to fit a Ph.III steering cam to either car 33-EX or 37-EX. | 19th Aug 1937 | Box 95 \ 1 scan0431 | |
| Requesting inspection and modification of the steering gear for chassis 37-EX. | 21th Aug 1937 | Box 95 \ 1 scan0432 | |
| Drawings for a new roller follower for a Phantom III steering modification. | 31th Aug 1937 | Box 95 \ 1 scan0433 | |
| Request to manufacture ball pads from Bakelite rod for Phantom III steering ball end rig tests. | 3rd Sep 1937 | Box 95 \ 1 scan0434 | |
| Parts for a Phantom III chassis steering column and box, referencing previous designs and requesting an order. | 11th Sep 1937 | Box 95 \ 1 scan0435 | |
| Request to make drawings for a modified steel washer and upper ball pad for a cross steering tube joint. | 13th Sep 1937 | Box 95 \ 1 scan0436 | |
| Trial and required modification of Bakelite ball pads for cross steering tube joints. | 14th Sep 1937 | Box 95 \ 1 scan0437 | |
| Accompanying blueprints for Phantom III cross steering tube components. | 16th Sep 1937 | Box 95 \ 1 scan0438 | |
| The provision of two blueprints for Phantom III Cross Steering Tube components. | 16th Sep 1937 | Box 95 \ 1 scan0439 | |
| Standardisation of adjustable cross steering tubes for the Ph.III model following successful testing. | 21th Sep 1937 | Box 95 \ 1 scan0440 | |
| The standardisation of Phantom III cross steering tubes. | 30th Sep 1937 | Box 95 \ 1 scan0441 | |
| Standardisation of springs and parts for a rear side steering tube joint to improve directional control and save cost. | 18th Jun 1937 | Box 95 \ 1 scan0442 | |
| Recommendation to standardize a modification based on reduced tool costs and factory cost savings. | 11th Oct 1937 | Box 95 \ 1 scan0443 | |
| Request for drawings of a bakelite upper ball pad and steel washer for the cross steering tube joints. | 11th Oct 1937 | Box 95 \ 1 scan0444 | |
| Modification to the Phantom III cross steering tube spring pads. | 11th Oct 1937 | Box 95 \ 1 scan0445 | |
| Modifications to the Phantom III cross steering tube spring pads, replacing parts Ex.S.72 and Ex.S.71. | 11th Oct 1937 | Box 95 \ 1 scan0446 | |
| Internal memorandum about a Phantom III steering incident caused by an undetected flat tyre, raising safety concerns. | 18th Oct 1937 | Box 95 \ 1 scan0447 | |
| Steering incident with chassis 3-AZ-38, caused by a slow tyre puncture. | 16th Oct 1937 | Box 95 \ 1 scan0448 | |
| The Phantom III steering and the difficulty of detecting a partially deflated tyre on an independently sprung chassis. | 19th Oct 1937 | Box 95 \ 1 scan0449 | |
| Parts to be held up for modifications to the Phantom III Chassis 39 E.X. steering column and box. | 26th Oct 1937 | Box 95 \ 1 scan0450 | |
| Standardisation of the Phantom III inner steering column tube from a one-piece to a two-part brazed assembly to save cost. | 27th Oct 1937 | Box 95 \ 1 scan0451 | |
| Cost estimation and production plan for standardizing parts on the Phantom III model. | 27th Oct 1937 | Box 95 \ 1 scan0452 | |
| Set up adjustment of side steering tube springs increased from 0.005-0.007 to 0.010-0.015. | 27th Oct 1937 | Box 95 \ 1 scan0453 | |
| The standardisation of Phantom III parts, noting no extra tool cost is required for production. | 13th Jan 1937 | Box 95 \ 1 scan0454 | |
| The failure of Phantom III steering due to excessive slack and creaks. | 25th Nov 1937 | Box 95 \ 1 scan0455 | |
| Manufacturing difficulties and failure analysis related to a jaw, spindle, and bearing assembly. | 25th Nov 1937 | Box 95 \ 1 scan0456 | |
| Recommendation to reconsider a design for a plain spindle to eliminate noted difficulties. | 30th Nov 1937 | Box 95 \ 1 scan0457 | |
| Investigation into slack steering on chassis 3-CP-114, concluding it was caused by an accident that twisted the rocker shaft. | 30th Nov 1937 | Box 95 \ 1 scan0458 | |
| Investigation into the superiority of hourglass steering worms for the Phantom 111. | 30th Nov 1937 | Box 95 \ 1 scan0459 | |
| Graph comparing backlash in Fellows 17 Tooth, Fellows 16 Tooth, and Adamant hourglass worms. | 2nd Dec 1937 | Box 95 \ 1 scan0460 | |
| Confirming a request to test a Ph.III rockershaft under static load. | 2nd Dec 1937 | Box 95 \ 1 scan0461 | |
| Scheme for mounting the cam follower in the Phantom III steering box to provide adjustment without using washers. | 3rd Dec 1937 | Box 95 \ 1 scan0462 | |
| Modification details for the bolt in the rocking shaft of the Phantom III chassis steering column and box. | 9th Dec 1937 | Box 95 \ 1 scan0463 | |
| Investigation report on failures of Phantom III steering rollers. | 11th Dec 1937 | Box 95 \ 1 scan0464 | |
| Analysis of component failures, focusing on roller and race issues, and proposing corrective actions. | 11th Dec 1937 | Box 95 \ 1 scan0465 | |
| Failures and modifications to Phantom III steering rollers. | 15th Dec 1937 | Box 95 \ 1 scan0466 | |
| Torsional tests on a Phantom III steering rocker shaft to determine the maximum applicable torque. | 24th Dec 1937 | Box 95 \ 1 scan0467 | |
| Estimated rockershaft torque on various chassis following a twisted rocker shaft incident. | 4th Jan 1938 | Box 95 \ 1 scan0468 | |
| Diagram from a Phantom III Steering Rocker Shaft Test showing the distortion of splines under torque. | 22th Dec 1937 | Box 95 \ 1 scan0469 | |
| Fitting stronger springs to correct steering wobbles on Phantom III chassis, including a table of results. | 6th Jan 1938 | Box 95 \ 1 scan0470 | |
| Request for samples of 'galled' contact pieces from cross steering tube joints regarding specific complaint reports. | 18th Jan 1938 | Box 95 \ 1 scan0471 | |
| Complaint about 'Galled' Contacts and requesting three car sets for replacements. | 20th Jan 1938 | Box 95 \ 1 scan0472 | |
| The 'E' type steering column on chassis 37.EX. | 7th Feb 1938 | Box 95 \ 1 scan0473 | |
| Failures in Phantom III and 25/30.HP steering roller followers due to insufficient casehardening. | 10th Mar 1938 | Box 95 \ 1 scan0474 | |
| Query regarding the timeline to standardise the bakelite pads on the Phantom III cross-steering tubes. | 13th Mar 1938 | Box 95 \ 1 scan0475 | |
| Requesting an examination of the casehardening depth for an inner race part from a Phantom III steering gear. | 18th Mar 1938 | Box 95 \ 1 scan0476 | |
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