| Description | Date | Identifier | |
| The deletion of the two-level device for the 20 HP car. | 15th May 1929 | Box 17 \ 5 Scan021 | |
| Comparative tests of a non-return valve in the Phantom II petrol supply system. | 26th Oct 1929 | Box 17 \ 5 Scan022 | |
| Graph showing the effect of a non-return valve on the petrol feed system of a Phantom II, comparing petrol delivery against engine RPM. | 29th Oct 1930 | Box 17 \ 5 Scan023 | |
| Blank page with a date stamp from Derby. | 29th Oct 1930 | Box 17 \ 5 Scan024 | |
| Letter complaining about the removal of the petrol tank reserve supply in the Phantom II model, highlighting safety concerns for Australian conditions. | 19th Dec 1929 | Box 17 \ 5 Scan025 | |
| Explaining the operation of the Phantom II petrol gauge and the reasoning for its design. | 27th Jan 1930 | Box 17 \ 5 Scan026 | |
| Modifications required for a spare wheel carrier for 7-inch section tyres. | 3rd Feb 1930 | Box 17 \ 5 Scan027 | |
| Revised petrol gauge fitting, its supply, finish, and related modifications to the car's rear, including a new luggage grid design. | 6th Feb 1930 | Box 17 \ 5 Scan028 | |
| Improvements for the rear of the Phantom II chassis. | 11th Feb 1930 | Box 17 \ 5 Scan029 | |
| Design changes for a hinged petrol tank filler. | 23th Apr 1930 | Box 17 \ 5 Scan030 | |
| Issues with the Phantom II's petrol level indicator and proposing the reintroduction of a two-gallon reserve. | 27th May 1930 | Box 17 \ 5 Scan031 | |
| Phantom II petrol level indicator and reverting to a standard two-gallon reserve. | 30th May 1930 | Box 17 \ 5 Scan032 | |
| Modification to the Phantom II petrol reserve system. | 31th May 1930 | Box 17 \ 5 Scan033 | |
| Suitable scheme for the petrol reserve system, involving an autovac tank and petrol pump. | 2nd Jun 1930 | Box 17 \ 5 Scan034 | |
| The increased petrol reserve for the Phantom II, noting that parts from the Phantom I are not suitable. | 14th Jun 1930 | Box 17 \ 5 Scan035 | |
| Improvements to the petrol gauge. | 16th Jun 1930 | Box 17 \ 5 Scan036 | |
| List of suggestions for modifying instrument and tank fittings, primarily to prevent spillage. | 16th Jun 1930 | Box 17 \ 5 Scan037 | |
| Alternative tank designs, fittings, vents, and pumps. | 16th Jun 1930 | Box 17 \ 5 Scan038 | |
| Investigation into the causes of petrol gauge failures and proposed modifications. | 24th Jun 1930 | Box 17 \ 5 Scan039 | |
| Improvements and remaining issues with petrol gauges, comparing Nivex and Hobson models. | 24th Jun 1930 | Box 17 \ 5 Scan040 | |
| The advantages and installation procedure of the 'Nivex' petrol gauge. | 24th Jun 1930 | Box 17 \ 5 Scan041 | |
| Typed document fragment, page 4, containing the end of a comparative statement. | 1st Jul 1930 | Box 17 \ 5 Scan042 | |
| Design and installation of petrol gauges and other instruments on the dashboard. | 1st Jul 1930 | Box 17 \ 5 Scan043 | |
| Action taken and production commencement for the Phantom II petrol reserve scheme. | 2nd Jul 1930 | Box 17 \ 5 Scan044 | |
| The decision to reinstate the two-gallon petrol reserve on the Phantom II and 20/25 models. | 8th Jul 1930 | Box 17 \ 5 Scan045 | |
| Design changes to the rear of the P.2 model, including the tank, gauge, and luggage grid, for when no spare wheel is fitted. | 12th Jul 1930 | Box 17 \ 5 Scan046 | |
| Modifications to petrol tank fittings, a reserve tank, and luggage grids for cars without a rear spare wheel. | 14th Aug 1930 | Box 17 \ 5 Scan047 | |
| Design and requirements for luggage grids and rear aprons. | 4th Aug 1930 | Box 17 \ 5 Scan048 | |
| Reducing the petrol reserve in the Autovac and altering the stand pipe height. | 1st Mar 1930 | Box 17 \ 5 Scan049 | |
| Design and standardization of a K.S. petrol gauge tank fitting. | 26th Aug 1930 | Box 17 \ 5 Scan050 | |
| Standardisation proposal for a two-level reserve compartment in the rear tank. | 2nd Jun 1930 | Box 17 \ 5 Scan051 | |
| Issues with the Phantom II rear petrol tank and gauge installation by coachbuilders. | 3rd Sep 1930 | Box 17 \ 5 Scan052 | |
| Standardisation of a hinged petrol tank filler cap to replace the screwed on type. | 24th Jul 1930 | Box 17 \ 5 Scan053 | |
| Need for a centrally vented tank to simplify and improve the reliability of the petrol gauge. | 7th Nov 1930 | Box 17 \ 5 Scan054 | |
| Modifications to the petrol tank and exhaust fishtail. | 17th Nov 1930 | Box 17 \ 5 Scan055 | |
| Urgent request for a scheme detailing the size and position of a reserve tank for the 40/50 HP chassis' new petrol pump and twin carburetter combination. | 19th Dec 1930 | Box 17 \ 5 Scan056 | |
| Requesting to expedite the installation of a centrally vented tank on car 27-EX. | 12th Jan 1931 | Box 17 \ 5 Scan057 | |
| Modifications for a rear apron on the P.2 model, related to the fitting of a new petrol tank and gauge. | 6th Mar 1931 | Box 17 \ 5 Scan058 | |
| Road tests and design issues of a single-line petrol gauge for the Phantom II. | 9th Mar 1931 | Box 17 \ 5 Scan059 | |
| Tests and modifications carried out on a Phantom II diaphragm petrol pump. | 12th Mar 1931 | Box 17 \ 5 Scan060 | |
| Analysis of fuel feed systems and pumps for a new twin-choke carburetter. | 12th Mar 1931 | Box 17 \ 5 Scan061 | |
| Fuel system tests and proposing the use of an A.C. fuel pump. | 12th Mar 1931 | Box 17 \ 5 Scan062 | |
| Graph comparing the delivery performance of an AC petrol pump versus an RR petrol pump, alongside Phantom engine consumption data. | 14th Mar 1931 | Box 17 \ 5 Scan063 | |
| Almost completely illegible document bearing a purple stamp from the Print Room in Derby. | 14th Mar 1931 | Box 17 \ 5 Scan064 | |
| Advantages and disadvantages of a centrally vented petrol tank design. | 13th Mar 1931 | Box 17 \ 5 Scan065 | |
| Secret memo regarding the standardisation of the control for the petrol reserve tank on the Phantom II. | 24th Mar 1931 | Box 17 \ 5 Scan066 | |
| Rejection of a single line petrol gauge design and proposing a new solution for an experimental tank. | 31th Mar 1931 | Box 17 \ 5 Scan067 | |
| Design and implementation of a combined petrol tap on the dashboard for the P.2. and 20/25 HP models. | 2nd Apr 1931 | Box 17 \ 5 Scan068 | |
| Parts list for the Phantom II Chassis, detailing changes to the frames, fittings, and petrol tank. | 15th Apr 1931 | Box 17 \ 5 Scan069 | |
| List of parts and modifications for petrol tank pipes, with instructions for fitting on chassis 27-EX. | 15th Apr 1931 | Box 17 \ 5 Scan070 | |
| Request for a scheme to operate a temporary A.C. petrol pump on a Phantom II for testing a twin-choke carburettor. | 7th Apr 1931 | Box 17 \ 5 Scan071 | |
| Failure of a petrol tank for the 27-EX model and instructions for a replacement. | 20th Apr 1931 | Box 17 \ 5 Scan072 | |
| Redesign of a petrol pump from sylphon tubes to a fabric diaphragm due to cost. | 4th May 1931 | Box 17 \ 5 Scan073 | |
| New petrol pump, detailing its advantages over the A.C. model and its suitability for specific car models. | 7th May 1931 | Box 17 \ 5 Scan074 | |
| The petrol pump operating mechanism and the required diaphragm design. | 19th May 1931 | Box 17 \ 5 Scan075 | |
| Modifications and design features for A.C. standard petrol pumps. | 22th May 1931 | Box 17 \ 5 Scan076 | |
| Letter discussing lubrication, material choice, and other design considerations for a petrol pump. | 2nd Jun 1931 | Box 17 \ 5 Scan077 | |
| Lubrication, fibre washers, and chassis tube rigidity related to a petrol pump. | 5th Jun 1931 | Box 17 \ 5 Scan078 | |
| New design for a Hobson petrol gauge fitting on a petrol tank. | 9th Sep 1931 | Box 17 \ 5 Scan079 | |
| Notes on fitting an A.C. Petrol Pump to a 25-EX chassis for a 10,000 miles trial. | 10th Jun 1931 | Box 17 \ 5 Scan080 | |
| Test data for a Phantom II Petrol Pump, measuring delivery rates in pints per hour and maximum pressure with various spring configurations. | 23th Sep 1931 | Box 17 \ 5 Scan081 | |
| Graph of petrol pump performance showing delivery rates at various pump speeds and spring configurations. | 23th Sep 1931 | Box 17 \ 5 Scan082 | |
| Telephone conversation regarding a P.2. petrol pump and a 20/25 HP crankshaft balance weight. | 5th Oct 1931 | Box 17 \ 5 Scan083 | |
| Confirmation of a telegram regarding a petrol pump difficulty. | 9th Oct 1931 | Box 17 \ 5 Scan084 | |
| Performance graph of petrol pump tests, comparing delivery rate versus pump speed for different pump configurations. | 12th Oct 1931 | Box 17 \ 5 Scan085 | |
| Filing instruction for a document concerning a petrol pump. | 13th Oct 1931 | Box 17 \ 5 Scan086 | |
| Standardisation of a remote control for the petrol tank reserve, operated from the dashboard. | 26th Aug 1931 | Box 17 \ 5 Scan087 | |
| Chassis numbers and associated costs for fitting a new standardized part. | 3rd Oct 1931 | Box 17 \ 5 Scan088 | |
| Experiments and modifications conducted on a Phantom II petrol pump. | 3rd Oct 1931 | Box 17 \ 5 Scan089 | |
| Progress report on the development and testing of the R.R. petrol pump. | 3rd Oct 1931 | Box 17 \ 5 Scan090 | |
| Graph plotting petrol pump delivery rates against pump speed for A.C. and PII pump models. | 12th Oct 1931 | Box 17 \ 5 Scan091 | |
| Blank page with a purple date stamp from Derby in the bottom right corner. | 13th Oct 1931 | Box 17 \ 5 Scan092 | |
| The conversion of a P. 2. Petrol Pump to direct acting. | 15th Oct 1931 | Box 17 \ 5 Scan093 | |
| Performance, modifications, and testing of a petrol pump. | 29th Oct 1931 | Box 17 \ 5 Scan094 | |
| Performance graphs for a PH petrol pump, showing delivery rate vs pump speed under various air bottle and reservoir configurations. | 19th Oct 1931 | Box 17 \ 5 Scan095 | |
| Heavily faded document, possibly a carbon copy, with a date stamp at the bottom right. | 29th Oct 1931 | Box 17 \ 5 Scan096 | |
| Design, testing, and modification of petrol pumps, comparing different design schemes. | 31th Oct 1931 | Box 17 \ 5 Scan097 | |
| Accompanying the second report on petrol pump efficiency following alterations to suction passages and valve ports. | 14th Nov 1931 | Box 17 \ 5 Scan098 | |
| Experiments modifying a standard petrol pump in stages to increase its output, with a summary of test results. | 13th Nov 1931 | Box 17 \ 5 Scan099 | |
| Summary continued of performance tests on a pump, detailing modifications and their effects on delivery rates. | 13th Nov 1931 | Box 17 \ 5 Scan100 | |
| Summary of final test results detailing modifications to increase delivery. | 13th Nov 1931 | Box 17 \ 5 Scan101 | |
| Performance test results and modifications for a P.II. petrol pump, including graphs and cross-sectional diagrams. | 27th Oct 1931 | Box 17 \ 5 Scan102 | |
| Performance test results for a petrol pump, showing delivery rate versus speed under various configurations. | 27th Oct 1931 | Box 17 \ 5 Scan103 | |
| Test report on a K.S. Hobson petrol gauge for a 27-EX model. | 7th Dec 1931 | Box 17 \ 5 Scan104 | |
| Petrol tank tests covering spillage on corners, gauge reading loss overnight, and issues with a shorter filler. | 18th Jan 1932 | Box 17 \ 5 Scan105 | |
| Instruction to fit petrol pumps to various Phantom II chassis. | 18th Jan 1932 | Box 17 \ 5 Scan106 | |
| Specification and complete parts list for a LEC 2961 Phantom II Petrol Pump for a test bed engine. | 18th Jan 1932 | Box 17 \ 5 Scan107 | |
| Experiments and modifications to a Phantom II Petrol Pump, LCC 2951, to improve performance. | 25th Jan 1932 | Box 17 \ 5 Scan108 | |
| Report page detailing the performance curve of deliveries, noting irregularities and increases at specific RPMs. | 25th Jan 1932 | Box 17 \ 5 Scan109 | |
| Performance graph for a Phantom II petrol pump on a test bed engine. | 15th Jan 1932 | Box 17 \ 5 Scan110 | |
| Blank document page with a purple date stamp from Derby. | 25th Jan 1932 | Box 17 \ 5 Scan111 | |
| Endurance test report on a F.II petrol pump, focusing on a loosening pivot pin issue. | 21th Mar 1932 | Box 17 \ 5 Scan112 | |
| Wear and condition of various pump and engine components after a test. | 21th Sep 1932 | Box 17 \ 5 Scan113 | |
| Blueprint diagram illustrating wear on the contact face of a tappet lever after an endurance test. | 17th Mar 1932 | Box 17 \ 5 Scan114 | |
| Stamp from the Derby print room. | 21th Mar 1932 | Box 17 \ 5 Scan115 | |
| Complaints about the petrol filler cap and proposing a hinged flap valve solution. | 13th May 1932 | Box 17 \ 5 Scan116 | |
| Performance issues and comparisons between the Phantom II and J.III petrol pumps. | 20th May 1932 | Box 17 \ 5 Scan117 | |
| Solutions for drawing fuel from the reserve, suggesting a larger diaphragm or priming the pipe line. | 20th May 1932 | Box 17 \ 5 Scan118 | |
| Performance graph from petrol pump tests, plotting delivery, consumption, and pressure against engine RPM. | 21th May 1932 | Box 17 \ 5 Scan119 | |
| Cover sheet stamped by the Print Room. | 21th May 1932 | Box 17 \ 5 Scan120 | |
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