| Description | Date | Identifier | |
| Inquiry regarding the original dispatch of parts for chassis 21 EX. | 30th Jul 1929 | Box 18 \ 3 Scan020 | |
| Delaying the road test of vehicle 21-EX due to foggy weather. | 16th Dec 1929 | Box 18 \ 3 Scan021 | |
| Advising of a delay in delivering a car to London due to trouble. | 17th Dec 1929 | Box 18 \ 3 Scan022 | |
| Axle noise in car 1-WJ, the replacement of hypoid gears, and a discussion on the effectiveness of Whitmore's Compound lubricant versus ordinary axle oil. | 18th Dec 1929 | Box 18 \ 3 Scan023 | |
| Noisy axle complaint due to deteriorated oil, leading to further investigation and testing of alternative oils. | 19th Dec 1929 | Box 18 \ 3 Scan024 | |
| Complaint about poor springing control and ride comfort in car 29-WJ, with instructions for repair. | 19th Dec 1929 | Box 18 \ 3 Scan025 | |
| Letter regarding an unresolved axle issue and the ongoing search for alternative rear axle oils. | 19th Dec 1929 | Box 18 \ 3 Scan026 | |
| Brief typed memo chasing a delivery date due to further trouble. | 19th Dec 1929 | Box 18 \ 3 Scan027 | |
| Analysis of a hypoid axle failure on chassis 1-WJ, due to the separation of Whitmore Compound Oil causing insufficient lubrication. | 20th Dec 1929 | Box 18 \ 3 Scan028 | |
| Testing and potential modification of a car's springing and suspension. | 20th Dec 1929 | Box 18 \ 3 Scan029 | |
| Customer complaints and internal disagreement regarding the springing of the 29-WJ model. | 23th Dec 1929 | Box 18 \ 3 Scan030 | |
| Investigation into a hypoid axle failure on chassis 1-WJ, attributing it to lubrication issues. | 23th Dec 1929 | Box 18 \ 3 Scan031 | |
| Fitting of stronger springs to car 29-WJ and the resulting trade-offs in ride comfort. | 24th Dec 1929 | Box 18 \ 3 Scan032 | |
| Rear axle noise on vehicle 1-WJ due to lubricant failure and a request for further diagnostic information. | 31th Dec 1929 | Box 18 \ 3 Scan033 | |
| Sir Henry Segrave's feedback on the Trials 1-WJ car, focusing on its semi-sports capabilities and safety. | 3rd Jan 1930 | Box 18 \ 3 Scan034 | |
| Report discussing vehicle performance issues including radiator 'jellying', vibrations, and braking. | 3rd Jan 1930 | Box 18 \ 3 Scan035 | |
| Overheating, plug trouble, brakes, fuel starvation, and arranging a test drive at Brooklands. | 1st Jan 1930 | Box 18 \ 3 Scan036 | |
| Noise development in a rear axle, discussing lubrication and the hypoid gear teeth. | 1st Jan 1930 | Box 18 \ 3 Scan037 | |
| Phantom II riding quality, tyre pressures, and spring bedding issues. | 3rd Jan 1930 | Box 18 \ 3 Scan038 | |
| Sir Henry Segrave's criticisms on engine vibration, plug trouble, and brake performance. | 4th Jan 1930 | Box 18 \ 3 Scan039 | |
| Report discussing vehicle performance issues regarding brakes, chassis, and radiator, particularly for car WJ-1 in relation to Sir Henry Segrave's expectations. | 4th Jan 1930 | Box 18 \ 3 Scan040 | |
| Report comparing acceleration with a Hispano, with proposed modifications for a sports car including springs, shock absorbers, tyre pressures, and gear ratios. | 4th Jan 1930 | Box 18 \ 3 Scan041 | |
| Letter discussing fitting special parts to a car, testing vehicle WJ-1 at Brooklands, and arranging a meeting. | 6th Jan 1930 | Box 18 \ 3 Scan042 | |
| Confirming travel plans for road tests and visits to Ricardo's and Hawkers due to the Brooklands track being closed. | 6th Jan 1930 | Box 18 \ 3 Scan043 | |
| 'PN' to 'Hs' arranging a road test and discussion on car 1-WJ, following criticism from Sir H. Segrave. | 1st Jan 1930 | Box 18 \ 3 Scan044 | |
| Sir Henry Seagrave's criticisms of vehicle 1-WJ and modifications for his chassis, 80-WJ. | 7th Jan 1930 | Box 18 \ 3 Scan045 | |
| Note on heavy gearbox oil consumption in Phantom II models, suggesting the cause is oil leakage from the tail end bearing. | 8th Jan 1930 | Box 18 \ 3 Scan046 | |
| Investigation into a clutch chirp on a trials car, with a recommendation to drill and pin clutch brake push rods. | 10th Jan 1930 | Box 18 \ 3 Scan047 | |
| Arranging for a car to be sent for investigation after tests on the Welwyn By-pass revealed extensive 'jellying' of the front frame. | 13th Jan 1930 | Box 18 \ 3 Scan048 | |
| Cause and resolution of oil leaks from the No. 2-WJ gearbox. | 13th Jan 1930 | Box 18 \ 3 Scan049 | |
| Trial results for Chassis 25-WJ, focusing on suspension, tyre performance, and the horn. | 13th Jan 1930 | Box 18 \ 3 Scan050 | |
| Water leak in an aluminium cylinder head caused by tube oxidation. | 13th Jan 1930 | Box 18 \ 3 Scan051 | |
| The delivery and urgent return of a Phantom II demonstration car. | 14th Jan 1930 | Box 18 \ 3 Scan052 | |
| Proposed new design for the front number-plate bracket on the Phantom II. | 15th Jan 1930 | Box 18 \ 3 Scan053 | |
| Difficulties with gear-changing and proposing a free-wheel device. | 16th Jan 1930 | Box 18 \ 3 Scan054 | |
| Discussions with Sir Henry Segrave regarding issues and modifications for his Phantom II car. | 15th Jan 1930 | Box 18 \ 3 Scan055 | |
| Modifications and supply preferences for Sir Henry Segrave's motor boat engine project. | 16th Jan 1930 | Box 18 \ 3 Scan056 | |
| The issues of a Phantom II test car, including body boom, vibration, and harsh springing, concluding it is unsuitable for demonstration. | 16th Jan 1930 | Box 18 \ 3 Scan057 | |
| Options for a faulty car, either for internal use after repairs or for sale as a Phantom II. | 16th Jan 1930 | Box 18 \ 3 Scan058 | |
| Questioning if the oil loss from a 2-WJ gearbox on the Phantom II should be classified as 'very small'. | 16th Jan 1930 | Box 18 \ 3 Scan059 | |
| From PN arranging a visit to Derby to discuss 'jellying' issues and test a special chassis. | 16th Jan 1930 | Box 18 \ 3 Scan060 | |
| Clerical error regarding gearbox modifications and the policy implications of fitting a free wheel device. | 17th Jan 1930 | Box 18 \ 3 Scan061 | |
| Suspension and tyre modifications for the 25-WJ Paris Trials Car for Continental touring. | 17th Jan 1930 | Box 18 \ 3 Scan062 | |
| Road surface friction tests, braking distances, and tyre performance comparisons. | 17th Jan 1930 | Box 18 \ 3 Scan063 | |
| Anodical treatment of aluminium cylinder head tubes. | 17th Jan 1930 | Box 18 \ 3 Scan064 | |
| Loss of oil from a Phantom II gearbox. | 17th Jan 1930 | Box 18 \ 3 Scan065 | |
| Arranging for the 29-WJ car to be brought to Derby for a trial. | 17th Jan 1930 | Box 18 \ 3 Scan066 | |
| Springing issues, 'booming' and 'bumping' on a Phantom II trials car. | 17th Jan 1930 | Box 18 \ 3 Scan067 | |
| Arranging a meeting for comparative tests between a Phantom II with a Solex carburetter and a standard model. | 23th Jan 1930 | Box 18 \ 3 Scan068 | |
| Criticism of car 29-WJ's springing, comparing it to 1-WJ, and proposing a potential improvement process. | 24th Jan 1930 | Box 18 \ 3 Scan069 | |
| Humorously describing an issue with the front tyres, suggesting the involvement of Edgar Wallace or Heath Robinson. | 24th Jan 1930 | Box 18 \ 3 Scan070 | |
| Over-inflated tyres on car 29-WJ, discussing comfort issues and recording tyre pressure readings. | 24th Jan 1930 | Box 18 \ 3 Scan071 | |
| Failure of hypoid gears due to a lack of oil during the 1-WJ London Trials. | 28th Jan 1930 | Box 18 \ 3 Scan072 | |
| Oil for hypoid rear axles and investigating gear trouble on a Phantom II car. | 28th Jan 1930 | Box 18 \ 3 Scan073 | |
| Lubrication issues and potential causes for failure in hypoid rear axles. | 29th Jan 1930 | Box 18 \ 3 Scan074 | |
| Shock absorber modifications by changing washer thicknesses for Chassis 25-WJ, the Paris Trials Car. | 31th Jan 1930 | Box 18 \ 3 Scan075 | |
| The Paris Trials Car, Chassis 25-WJ, detailing springing improvements and difficulties with tyre testing. | 31th Jan 1930 | Box 18 \ 3 Scan076 | |
| Requesting the return of car No.1.WJ, sent for experiments in connection with 'jellying'. | 11th Apr 1930 | Box 18 \ 3 Scan077 | |
| Requesting the removal and sending of a new pattern Lucas Centre lamp for inspection. | 11th Apr 1930 | Box 18 \ 3 Scan078 | |
| Correcting the heading in a previous communication regarding a Centre Lamp. | 11th Apr 1930 | Box 18 \ 3 Scan079 | |
| Confirming the dispatch of a 1-WJ Centre Lamp in response to a request. | 14th Apr 1930 | Box 18 \ 3 Scan080 | |
| Query regarding the availability of an experimental car for the Chairman's tour of the Dolomites. | 4th Apr 1930 | Box 18 \ 3 Scan081 | |
| Confirming telephoned instructions to send a driver to bring a car back to London from Derby. | 15th Apr 1930 | Box 18 \ 3 Scan082 | |
| Confirming a car will be available for continental use during the first week of July. | 23th Apr 1930 | Box 18 \ 3 Scan083 | |
| The return of a car for removal of non-standard parts and its urgent delivery to London. | 23th Apr 1930 | Box 18 \ 3 Scan084 | |
| The failure to fix 'radiator jellying' on car 1-WJ and a request to retain it for further work. | 23th Apr 1930 | Box 18 \ 3 Scan085 | |
| Arrangements for a car and driver for Lord Wargrave, potentially involving a German demonstration car. | 24th Apr 1930 | Box 18 \ 3 Scan086 | |
| Arrangement of a car for Lord Wargrave. | 25th Apr 1930 | Box 18 \ 3 Scan087 | |
| Results and proposed cure for a 'radiator jellying' issue on the 1-WJ model. | 28th Apr 1930 | Box 18 \ 3 Scan088 | |
| Leaving car 1-WJ for investigation into a radiator jellying problem. | 29th Apr 1930 | Box 18 \ 3 Scan089 | |
| Internal correspondence regarding the body style requirements for Lord Wargrave's new car. | 29th Apr 1930 | Box 18 \ 3 Scan090 | |
| Arranging a car trial for a Friday, conditional on whether standard parts need to be removed. | 30th Apr 1930 | Box 18 \ 3 Scan091 | |
| Positive test results for radiator jellying. | 30th Apr 1930 | Box 18 \ 3 Scan092 | |
| Arranging a meeting with Sir Henry Segrave for car demonstrations and tests. | 1st May 1930 | Box 18 \ 3 Scan093 | |
| Brief note regarding a meeting at Bignall's Corner with cars 80-WJ and 1-WJ. | 1st May 1930 | Box 18 \ 3 Scan094 | |
| Meeting about fixing a radiator 'Jellying' problem on a Phantom II and a Trials Car. | 2nd May 1930 | Box 18 \ 3 Scan095 | |
| From Sg. to Hs. regarding the positive results of a test on radiator jellying. | 5th May 1930 | Box 18 \ 3 Scan096 | |
| Specifications and load calculations for springs fitted to a centre point radiator mounting. | 6th May 1930 | Box 18 \ 3 Scan097 | |
| Recommended decarbonizing mileage for chassis 19-RC. | 20th May 1930 | Box 18 \ 3 Scan098 | |
| Customer's feedback on engine decarbonising for a Phantom II. | 19th May 1930 | Box 18 \ 3 Scan099 | |
| Requesting comments on a previous communication regarding chassis No. 19-RC. | 26th May 1930 | Box 18 \ 3 Scan100 | |
| Chasing a reply regarding chassis 19-RC. | 30th May 1930 | Box 18 \ 3 Scan101 | |
| Response to a query about the effectiveness of air and oil cleaners on chassis 19-RC. | 2nd Jun 1930 | Box 18 \ 3 Scan102 | |
| Follow-up letter regarding arranging a car for Lord Wargrave's tour of the Dolomites. | 12th Jun 1930 | Box 18 \ 3 Scan103 | |
| Outlining arrangements for Lord Wargrave's tour in the Dolomites, including his car and driver requirements. | 12th Jun 1930 | Box 18 \ 3 Scan104 | |
| Follow-up note regarding car arrangements for Lord Wargrave and a query about Dodd. | 13th Jun 1930 | Box 18 \ 3 Scan105 | |
| Request to use an experimental car for endurance testing during a holiday in the Lake District. | 12th Jun 1930 | Box 18 \ 3 Scan106 | |
| Confirming arrangements for a driver named Dodd for Lord Wargrave's tour in the Dolomites. | 13th Jun 1930 | Box 18 \ 3 Scan107 | |
| Communication promising to provide a car but unable to specify the model at present. | 18th Jun 1930 | Box 18 \ 3 Scan108 | |
| Short memo regarding the scheduling of Lord Wargrave's Tour in the Dolomites. | 19th Jun 1930 | Box 18 \ 3 Scan109 | |
| Road test report on experimental New Silent Tread Tyres fitted to car 1-WJ. | 23th Jun 1930 | Box 18 \ 3 Scan110 | |
| Arrangement for an inspection of the 'Foreign Propaganda car' (chassis 4-XJ) in Derby to assess its condition after a strenuous tour. | 24th Jun 1930 | Box 18 \ 3 Scan111 | |
| The performance and mechanical issues of a 'Propaganda Car' after a 10,000-mile tour. | 25th Jun 1930 | Box 18 \ 3 Scan112 | |
| Vehicle issues including damaged undersheets, body rattles, and criticism of coachwork design and construction. | 25th Jun 1930 | Box 18 \ 3 Scan113 | |
| Issues found with the rear wheel carrier, petrol tank, and rear springs, with suggestions for improvements. | 25th Jun 1930 | Box 18 \ 3 Scan114 | |
| Short typed memo rescheduling a car collection from Wednesday to Friday. | 30th Jun 1930 | Box 18 \ 3 Scan115 | |
| Letter regarding the inspection of a 'Phantom II' after a 10,000-mile rough road test for overseas propaganda purposes. | 30th Jun 1930 | Box 18 \ 3 Scan116 | |
| The bodywork issues and performance of a 40/50 HP Phantom II car, 12-XJ. | 21th Jun 1930 | Box 18 \ 3 Scan117 | |
| List of bodywork defects for a 40/50 HP Phantom II car, model 12-XJ, used for overseas propaganda. | 21th Jun 1930 | Box 18 \ 3 Scan118 | |
| Confirming a visit to Derby and requesting a car for use on that day. | 19th Jun 1930 | Box 18 \ 3 Scan119 | |
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