| Description | Date | Identifier | |
| Accessory wiring, confirming the retention of twin wiring due to the unavailability of single-pole fittings and the associated fire risk. | 24th Nov 1928 | Box 65 \ 2 scan0227 | |
| Requirement for two accessory distribution boards for vehicle wiring. | 26th Nov 1928 | Box 65 \ 2 scan0228 | |
| Mr. Royce's approval for the use of an existing auxiliary connecting board and a proposed design modification for the earth terminal. | 12th Oct 1928 | Box 65 \ 2 scan0229 | |
| Redesign of the accessory distribution board to include an earth terminal. | 28th Jan 1929 | Box 65 \ 2 scan0230 | |
| Instruction memo detailing a conversation about electrical accessories and fittings from a coach-builder's perspective. | 29th Jan 1929 | Box 65 \ 2 scan0231 | |
| Note detailing suggested modifications for tail-lamp wiring and a request for a visit to coachbuilders. | 8th Dec 1924 | Box 65 \ 2 scan0232 | |
| Suggesting someone from Derby visit Mr. Evans in London regarding report AD.22. | 30th Jan 1929 | Box 65 \ 2 scan0233 | |
| Conversation with Mr. Lee-Evans of Lillie Hall about coachbuilders' electrical accessories. | 29th Jan 1929 | Box 65 \ 2 scan0234 | |
| Coachbuilders' electrical accessories, specifically the fitting of a body light junction box and tail lamp wiring. | 31th Jan 1929 | Box 65 \ 2 scan0235 | |
| Approval and suggested modifications for electrical wiring and lampholders. | 5th Feb 1929 | Box 65 \ 2 scan0236 | |
| Issue of connecting cigar lighters to the 20 amp ammeter circuit on 'Phantom' cars, proposing a separate fused circuit. | 25th Mar 1929 | Box 65 \ 2 scan0237 | |
| Electrical wiring for accessory apparatus drawing more than 15 amperes on the S.S. chassis. | 26th Mar 1929 | Box 65 \ 2 scan0238 | |
| Establishing a standard practice for wiring a heavy-current cigar lighter for coachbuilders. | 19th Apr 1929 | Box 65 \ 2 scan0239 | |
| The reconsideration of the accessory wiring arrangement for the S.S. | 22th Apr 1929 | Box 65 \ 2 scan0240 | |
| Extract from a test report regarding a heavy ampere discharge issue on a 20-HP car, GLN-51. | 17th Aug 1929 | Box 65 \ 2 scan0241 | |
| The fitting of additional gadgets and Connolly bumpers to a 20 HP chassis for Mann Egerton. | 23th May 1929 | Box 65 \ 2 scan0242 | |
| The standard and a proposed experimental arrangement for the accessory distribution board. | 9th Sep 1929 | Box 65 \ 2 scan0243 | |
| Proposing to fit a revised accessory distribution board to chassis 23-EX for a 10,000-mile test as a proposal for standardisation. | 1st Jan 1930 | Box 65 \ 2 scan0244 | |
| Extract from a memo discussing a proposed electrical alteration for the cigar lighter to prevent it from blowing a fuse. | 26th Jun 1930 | Box 65 \ 2 scan0245 | |
| Extract regarding the power supply for the accessory box and cigar lighters. | 5th Jul 1930 | Box 65 \ 2 scan0246 | |
| Reconsideration of the accessory wiring arrangement for the S.S. | 22th Apr 1929 | Box 65 \ 2 scan0247 | |
| Wiring arrangement for accessory apparatus, addressing ammeter connections and fuse board specifications. | 22th Apr 1929 | Box 65 \ 2 scan0248 | |
| The electrical circuit arrangement, focusing on which components should pass current through the ammeter. | 22th Apr 1929 | Box 65 \ 2 scan0249 | |
| Continued page discussing electrical wiring configurations, fuse sizes, and conductor choices for vehicle accessories. | 22th Apr 1929 | Box 65 \ 2 scan0250 | |
| Continued discussion on wiring specifications for body lights and accessory distribution boards. | 16th May 1929 | Box 65 \ 2 scan0251 | |
| The experimental instruction of arrangements for an Accessory Apparatus and Distribution Board. | 16th May 1929 | Box 65 \ 2 scan0252 | |
| Response to a complaint, suggesting a previously proposed arrangement as the solution. | 18th May 1929 | Box 65 \ 2 scan0253 | |
| Blueprints for a new Accessory Distribution Board for 20 HP and 40/50 HP chassis. | 26th Jun 1929 | Box 65 \ 2 scan0254 | |
| Standard arrangement and a proposed experimental modification for the accessory distribution board. | 9th Sep 1929 | Box 65 \ 2 scan0255 | |
| Covering letter for a report received regarding the lighting system and headlamps on the Phantom II. | 11th Nov 1929 | Box 65 \ 2 scan0256 | |
| Wiring implications of using Lucas dual-bulb headlamps and fitting cigar lighters. | 1st Nov 1929 | Box 65 \ 2 scan0257 | |
| The design and wiring specifications for an accessory distribution board. | 5th Nov 1929 | Box 65 \ 2 scan0258 | |
| Query regarding the production status of the revised auxiliary distribution board for experimental chassis 18-EX. | 20th Nov 1929 | Box 65 \ 2 scan0259 | |
| Requesting a revised accessory distribution board be fitted to chassis 18-EX. | 23th Nov 1929 | Box 65 \ 2 scan0260 | |
| Suggestion to consider incorporating the new accessory distribution board on the 20 HP chassis. | 28th Nov 1929 | Box 65 \ 2 scan0261 | |
| The fitting of an accessory distribution board on a 20 HP chassis, noting no request has been received due to cost-saving instructions. | 3rd Dec 1929 | Box 65 \ 2 scan0262 | |
| Proposing the fitting of a revised accessory distribution board to chassis 23-EX for a 10,000-mile test for standardisation purposes. | 1st Jan 1930 | Box 65 \ 2 scan0263 | |
| Standardisation of an accessory distribution box for chassis parts. | 20th Jun 1930 | Box 65 \ 2 scan0264 | |
| Connections for body and cigar lighting, discussing issues with the accessory distribution box. | 9th Jul 1930 | Box 65 \ 2 scan0265 | |
| Wiring modification for the accessory distribution box to improve circuit reliability. | 11th Jul 1930 | Box 65 \ 2 scan0266 | |
| Sizing of wires for the accessory box and magneto. | 1st Jul 1930 | Box 65 \ 2 scan0267 | |
| Recommendation on wiring connections for body and cigar lighters. | 18th Jul 1930 | Box 65 \ 2 scan0268 | |
| Letter regarding alterations to the Phantom II wiring diagram. | 15th Nov 1930 | Box 65 \ 2 scan0269 | |
| Phantom II chassis wiring diagram to accommodate high-current devices like cigar lighters. | 21th Nov 1930 | Box 65 \ 2 scan0270 | |
| Body lighting accessories and the provision for two power supplies on the N.2 series. | 22th Nov 1930 | Box 65 \ 2 scan0271 | |
| Proposing to add a second accessory distribution box to the rear of the car frame. | 18th Jan 1932 | Box 65 \ 2 scan0272 | |
| Proposing a master switch for accessory circuits to prevent battery discharge. | 1st Feb 1932 | Box 65 \ 2 scan0273 | |
| Suggestion regarding the implementation of a master switch for body wiring, particularly concerning its use with an electric heater and safeguarding the ignition circuit. | 1st Feb 1932 | Box 65 \ 2 scan0274 | |
| Arrangement of the master switch for body wiring to include a red warning light. | 5th Feb 1932 | Box 65 \ 2 scan0275 | |
| Suggested wiring scheme for main distribution fuses and junction boxes. | 5th Feb 1932 | Box 65 \ 2 scan0276 | |
| Agreeing to a suggestion for a red warning light to indicate when both the ignition and master switch are left on. | 3rd Feb 1932 | Box 65 \ 2 scan0277 | |
| Proposing a new chassis wiring system to protect batteries from over-discharge using a master switch. | 1st Feb 1932 | Box 65 \ 2 scan0278 | |
| Safety mechanism for the starter motor circuit using a diaphragm. | 1st Feb 1932 | Box 65 \ 2 scan0279 | |
| Wiring diagram for a master control switch with associated fuses and a warning lamp. | 1st Jan 1932 | Box 65 \ 2 scan0280 | |
| Potential issue with chassis wiring regarding the red lamp's behaviour. | 11th Feb 1932 | Box 65 \ 2 scan0281 | |
| Clarifying the policy for the wiring of accessories on the J.3 chassis. | 2nd Feb 1932 | Box 65 \ 2 scan0282 | |
| Steering tests in France, detailing the abandonment of a new side steering tube design following an incident. | 1st Sep 1926 | Box 65 \ 2 scan0283 | |
| Report page discussing tests on new 6-inch traction tread Dunlop tyres, comparing them to Michelin and other Dunlop tyres. | 20th Jul 1928 | Box 65 \ 2 scan0284 | |
| Low-pressure tyres and flexible road spring configurations for the Phantom and 20 HP models. | 20th Jul 1928 | Box 65 \ 2 scan0285 | |
| Technical discussion on car suspension, focusing on flexible springs and hydraulic shock dampers. | 1st Aug 1928 | Box 65 \ 2 scan0286 | |
| Buffer penetration tests and wheel arch suitability for different tyre sizes. | 1st Aug 1928 | Box 65 \ 2 scan0287 | |
| Use of smaller 20-inch wheels on the 'SS' model to lower the car's frame height. | 6th Sep 1928 | Box 65 \ 2 scan0288 | |
| New tyre models from the Dunlop Rubber Co. | 1st Sep 1928 | Box 65 \ 2 scan0289 | |
| Tyre performance concerning shimmy, alongside findings on rubber engine feet and cylinder joints. | 26th Sep 1928 | Box 65 \ 2 scan0290 | |
| Blueprint showing inflated and deflected cross-section shapes for four types of 32x6.00 Dunlop tires under standard load and pressure. | 26th Sep 1928 | Box 65 \ 2 scan0291 | |
| Selection of car tyres, their characteristics, and specific sizes for different models. | 6th Oct 1928 | Box 65 \ 2 scan0292 | |
| Wheel arch clearances for 18-EX and 'SS' cars. | 18th Oct 1938 | Box 65 \ 2 scan0293 | |
| Ordering 32 X 6.75' tyres and sourcing an alternative supplier to prevent chassis production delays. | 14th Nov 1928 | Box 65 \ 2 scan0294 | |
| Requesting the Paris Depot to obtain and despatch six Dunlop tyres for car 19-EX. | 19th Feb 1928 | Box 65 \ 2 scan0295 | |
| Proposing to use 20' rims instead of 21' rims on the 'SS' model and enquiring about suitable silent tread tyres from Dunlop. | 1st Mar 1929 | Box 65 \ 2 scan0296 | |
| Wheel and tyre sizes for the S.S. car and their impact on steering performance. | 28th May 1929 | Box 65 \ 2 scan0297 | |
| Comparison test report for 7 x 20 tyres fitted to a Phantom Chassis. | 17th Jun 1929 | Box 65 \ 2 scan0298 | |
| Testing and standardization of 20-inch wheels and 7-inch tyres. | 12th Jul 1929 | Box 65 \ 2 scan0299 | |
| Comparison of specifications for a standard silent tread tyre and a Dunlop 'Fort' reinforced tyre. | 14th Sep 1929 | Box 65 \ 2 scan0300 | |
| The disadvantages of fitting wider tyres, detailing the negative effects on steering. | 12th Nov 1929 | Box 65 \ 2 scan0301 | |
| Alternative tyre options and their specifications for the Phantom II chassis. | 12th Nov 1929 | Box 65 \ 2 scan0302 | |
| Factors affecting the riding comfort of the Phantom II, including tyre pressures, spring bedding, and load distribution. | 1st Jan 1930 | Box 65 \ 2 scan0303 | |
| Letter discussing a proposal for Phantom II wheel and tyre standardisation and including a customer testimonial. | 1st Jan 1930 | Box 65 \ 2 scan0304 | |
| The fitting of large section tyres for India and other markets, addressing customer objections and clearance issues. | 1st Jan 1930 | Box 65 \ 2 scan0305 | |
| From 'PN' withholding signature on a standardisation form for 20' wheels with 7' tyres due to concerns from past testing. | 13th Feb 1930 | Box 65 \ 2 scan0306 | |
| Discontinuing the 6½' section tyre and replacing it with the 7' section tyre for 20' rims. | 14th Feb 1930 | Box 65 \ 2 scan0307 | |
| Standardisation of chassis parts, specifically 20' wheels with 7' tyres. | 1st Jan 1930 | Box 65 \ 2 scan0308 | |
| The difficulties of balancing wheels using 'Fort' tyres and the proposed solution using larger balance washers. | 25th Mar 1930 | Box 65 \ 2 scan0309 | |
| Comparison of dimensions and weight between a U.S. Royal tyre and standard Dunlop tyres. | 8th May 1930 | Box 65 \ 2 scan0310 | |
| Comparison table of specifications for four different types of tyres. | 13th May 1930 | Box 65 \ 2 scan0311 | |
| Recommendations for resolving Phantom II steering complaints, focusing on wheel balance, tyre pressure, and pivot lean. | 13th May 1930 | Box 65 \ 2 scan0312 | |
| Technical notes on adjusting the cross-steering tube, toe-in, and shock absorbers. | 13th May 1930 | Box 65 \ 2 scan0313 | |
| Checks for poor steering, including shock absorbers, tyres, and a cross-steering tube load test. | 13th May 1930 | Box 65 \ 2 scan0314 | |
| Blueprint showing a cross-section of a steering tube assembly with notes on adjustment and poundage requirements. | 13th May 1930 | Box 65 \ 2 scan0315 | |
| Correcting the wheel revolutions per mile for a 7 x 20' Silent Tread Fort Reinforced Dunlop tyre. | 15th May 1930 | Box 65 \ 2 scan0316 | |
| Recommended tyre pressures for Phantom II and 20-HP models. | 20th May 1930 | Box 65 \ 2 scan0317 | |
| Performance of modified silent tread tyres after skidding experiments by the Dunlop Rubber Co. | 3rd Jun 1930 | Box 65 \ 2 scan0318 | |
| Modifications made to silent tread tyres, comparing appearance and performance against Triple Stud tyres. | 3rd Jun 1930 | Box 65 \ 2 scan0319 | |
| Recommended tyre pressures for the Phantom II model. | 4th Jun 1930 | Box 65 \ 2 scan0320 | |
| New balance weights and imbalance limits for 7' tyres on 20' rims for the 40/50 model. | 5th Jun 1930 | Box 65 \ 2 scan0321 | |
| Requesting a full set of four 'Silent Tread Tyres' for proper testing. | 6th Jun 1930 | Box 65 \ 2 scan0322 | |
| Dispatch of new Silent Tread Tyres with improved non-skidding properties for testing and feedback. | 17th Jun 1930 | Box 65 \ 2 scan0323 | |
| The performance of new tyre treads during a road test in wet conditions. | 23th Jun 1930 | Box 65 \ 2 scan0324 | |
| The dispatch of modified 'Silent Tread' tyres for evaluation and a note on Dunlop making new moulds. | 26th Jun 1930 | Box 65 \ 2 scan0325 | |
| Excessive wheel toe-in causing abnormal tyre wear, supplementing Depot Sheet No.160. | 27th Jun 1930 | Box 65 \ 2 scan0326 | |
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