| Description | Date | Identifier | |
| Phantom III vehicle (34-EX) regarding overheating issues and the fitting of a radiator wire mesh. | 30th Sep 1936 | Box 96 \ 3 scan0119 | |
| The availability of car 34-EX for investigation into heating issues. | 1st Oct 1936 | Box 96 \ 3 scan0120 | |
| Telegram from Robotham arranging for a driver to collect a trials car the next morning. | 2nd Oct 1936 | Box 96 \ 3 scan0121 | |
| Requesting the urgent return of one car to facilitate an axle change on another, with handwritten modification instructions. | 16th Oct 1936 | Box 96 \ 3 scan0122 | |
| Investigation into persistent high water temperature on car 34-EX. | 16th Oct 1936 | Box 96 \ 3 scan0123 | |
| Follow-up memo regarding fittings on Trials Car GUL-1. | 24th Oct 1936 | Box 96 \ 3 scan0124 | |
| Urgent memo chasing a reply regarding the type of piston rings fitted to Trials Car GUL-1. | 28th Oct 1936 | Box 96 \ 3 scan0125 | |
| Note confirming that trials car GUL-1 is not equipped with L shaped rings. | 29th Oct 1936 | Box 96 \ 3 scan0126 | |
| Issue with a 25/30 HP Chassis GTL.75 firing after being switched off. | 29th Oct 1936 | Box 96 \ 3 scan0127 | |
| Faulty oil cooler and squeaking O.S.F. suspension on Capt. Barnato's Ph. lll, chassis 3-AZ-88. | 17th Nov 1936 | Box 96 \ 3 scan0128 | |
| Customer complaint regarding a Phantom III, chassis No. 3-AZ-98, with oil in the cooling water. | 18th Nov 1936 | Box 96 \ 3 scan0129 | |
| Customer complaint memo regarding oil in the cooling water for Chassis 3-AZ-98 and another Phantom III. | 18th Nov 1936 | Box 96 \ 3 scan0130 | |
| Agreeing that when choosing between accessories for the Phantom III coachwork, the lighter option should always be selected. | 18th Nov 1936 | Box 96 \ 3 scan0131 | |
| London Trials for car 3-AZ-38, requesting a date for the insertion of rubber between the axle and springs, with a handwritten reply. | 19th Nov 1936 | Box 96 \ 3 scan0132 | |
| Noise reduction in a Phantom III tested on Glasgow's cobblestones, with a proposal for further improvements. | 18th Nov 1936 | Box 96 \ 3 scan0133 | |
| Confirming availability to work on a car at the earliest convenience. | 23th Nov 1936 | Box 96 \ 3 scan0134 | |
| Inquiry about the replacement of back springs and the characteristics of the new parts. | 14th Dec 1936 | Box 96 \ 3 scan0135 | |
| The oil consumption of car 34-EA for the month of November. | 21th Dec 1936 | Box 96 \ 3 scan0136 | |
| Oil consumption log for chassis No. 34 EX for the month of November. | 19th Dec 1936 | Box 96 \ 3 scan0137 | |
| Confirming exhaust boom issues on a 38-EX Long Wheelbase Phantom III car. | 24th Dec 1936 | Box 96 \ 3 scan0138 | |
| The decision not to fit an overdrive box to a Long Phantom III car. | 29th Dec 1936 | Box 96 \ 3 scan0139 | |
| Delay and gearbox change for the 38-EX Long Chassis. | 31th Dec 1936 | Box 96 \ 3 scan0140 | |
| Internal query regarding the expected arrival date for the 38-EX Long Chassis. | 1st Jan 1937 | Box 96 \ 3 scan0141 | |
| Increased oil consumption using Arctic oil during the London Trials. | 1st Jan 1937 | Box 96 \ 3 scan0142 | |
| List of modifications for car 38-EX as it enters the Fitting Shop. | 6th Jan 1937 | Box 96 \ 3 scan0143 | |
| Inquiry regarding the expected arrival of car 38-EX Long Chassis in London. | 7th Jan 1937 | Box 96 \ 3 scan0144 | |
| Inquiring about the delivery status of a Long Wheelbase Phantom III car. | 1st Jan 1937 | Box 96 \ 3 scan0145 | |
| Long Wheel Base Phantom III chassis, which is ready to be sent to London, with further comparative tests planned for a later date. | 13th Jan 1937 | Box 96 \ 3 scan0146 | |
| Comparative testing for the Long Wheelbase Phantom III vehicle. | 14th Jan 1937 | Box 96 \ 3 scan0147 | |
| Clutch 'jagger' issue for chassis 3.AX.41, with arrangements made to fit new plates. | 22th Jan 1937 | Box 96 \ 3 scan0148 | |
| Replacing experimental car 34-EX with 38-EX for comparative tests. | 27th Jan 1937 | Box 96 \ 3 scan0149 | |
| Anticipated arrival of experimental car 38-EX in London, which may be delayed due to snow and ice. | 30th Jan 1937 | Box 96 \ 3 scan0150 | |
| Sending broken rivets removed from the nearside rear brake drum of chassis No. 3-AZ-28. | 29th Jan 1937 | Box 96 \ 3 scan0151 | |
| Observations of London Trials Car 38-EX regarding oil consumption and a potential change of oil type. | 2nd Feb 1937 | Box 96 \ 3 scan0152 | |
| Car trial comparing a long wheelbase car (38-EX) against a standard model, concluding against changing the standard wheelbase. | 4th Feb 1937 | Box 96 \ 3 scan0153 | |
| Requesting parts to provide an extra 1' of pedal travel for car 38-EX. | 19th Feb 1937 | Box 96 \ 3 scan0154 | |
| Inquiry regarding the mileage of the red Continental P.III, chassis number 33-EX. | 3rd Apr 1937 | Box 96 \ 3 scan0155 | |
| The mileage history of car Phantom III - 33 EX. | 5th Apr 1937 | Box 96 \ 3 scan0156 | |
| Requesting confirmation about the mileage and extensive use of car 33-EX. | 6th Apr 1937 | Box 96 \ 3 scan0157 | |
| Car 33 EX, stating that interest has ceased and suggesting it was sent to the Paris depot. | 7th Apr 1937 | Box 96 \ 3 scan0158 | |
| Repeated tappet issues and a transmission knock on the Phantom III demonstrator, chassis 3-AZ-20. | 5th Apr 1937 | Box 96 \ 3 scan0159 | |
| Fitting of Gordon Armstrong dampers to car 33-EX. | 8th Apr 1937 | Box 96 \ 3 scan0160 | |
| Brief typed memo requesting the mileage to date for vehicle 38-EX. | 14th May 1937 | Box 96 \ 3 scan0161 | |
| Conflicting speedometer readings for Chassis No: 38-EX. | 15th May 1937 | Box 96 \ 3 scan0162 | |
| Providing the mileage for chassis 38-EX to the Inspection Department. | 8th Jun 1937 | Box 96 \ 3 scan0163 | |
| Faulty near side rear shock damper on Chassis No. 3-AZ-38 during London Trials. | 29th Jun 1937 | Box 96 \ 3 scan0164 | |
| Fitting of new rear shackle pins and bushes to Chassis No. 3-AZ-38. | 9th Jul 1937 | Box 96 \ 3 scan0165 | |
| Comparison of vehicle lap times and speeds with different wheel and tyre setups at Brooklands. | 6th Aug 1937 | Box 96 \ 3 scan0166 | |
| The work completed on trials car 3.CP.10. | 17th Feb 1938 | Box 96 \ 3 scan0167 | |
| Potential transfer of four used Dunlop Special Fort tyre covers. | 20th May 1938 | Box 96 \ 3 scan0168 | |
| Declining the use of 7.50 x 18 tyres from car 3.BU.190. | 23th May 1938 | Box 96 \ 3 scan0169 | |
| The failure of a steering box rocker shaft on a Phantom III demonstration car. | 14th Aug 1939 | Box 96 \ 3 scan0170 | |
| Broken rocker shaft on a Phantom III Paris Demonstration Car. | 15th Apr 1939 | Box 96 \ 3 scan0171 | |
| Test report on an overdrive gear for car 36-EX, detailing performance, fuel consumption, and potential overheating issues. | 20th Feb 1937 | Box 96 \ 3 scan0172 | |
| Multiple electrical failures experienced with vehicle 36-EX, including the starter, dynamo, and foot switch. | 22th Feb 1937 | Box 96 \ 3 scan0173 | |
| Dynamo fuse blowing twice, a starter fuse failure, and noisy dynamo brushes. | 22th Feb 1937 | Box 96 \ 3 scan0174 | |
| Work order for modifications to car 36 Ex, including swapping cylinder heads and replacing a cracked crankcase. | 22th Feb 1937 | Box 96 \ 3 scan0175 | |
| Report about a dynamo fuse blowing, a starter fuse failing, and noisy dynamo brushes. | 22th Feb 1937 | Box 96 \ 3 scan0176 | |
| List of five modifications for car 36-EX before it goes to London. | 23th Feb 1937 | Box 96 \ 3 scan0177 | |
| Request to fit new ignition wires to the B side of engine 36 Ex. | 23th Feb 1937 | Box 96 \ 3 scan0178 | |
| Over-drive gearbox, its ratios, and proposed changes to the gear gate layout. | 24th Feb 1937 | Box 96 \ 3 scan0179 | |
| Increased clutch pedal travel for car 36-EX to reduce pedal effort. | 26th Feb 1937 | Box 96 \ 3 scan0180 | |
| Recommendations for reducing the weight of the Spectre engine by changing component materials. | 4th Jul 1934 | Box 96 \ 4 scan0001 | |
| Note on component quantities and a proposed weight-saving design for the fan hub. | 4th Jul 1934 | Box 96 \ 4 scan0002 | |
| Efforts to reduce the weight of the Spectre engine compared to the Phantom II. | 4th Jul 1934 | Box 96 \ 4 scan0003 | |
| Plan to build a second Spectre engine using lightweight steel and magnesium components to reduce weight. | 4th Jul 1934 | Box 96 \ 4 scan0004 | |
| Secret memo from 'Sg' regarding the weight of the Spectre engine and building a second version with lightweight materials. | 6th Jul 1934 | Box 96 \ 4 scan0005 | |
| Weight reduction for the Spectre chassis by modifying the front crossmember forgings. | 13th Sep 1934 | Box 96 \ 4 scan0006 | |
| Requesting the average weight of a Saloon body fitted to a Phantom chassis for comparison purposes. | 14th Dec 1934 | Box 96 \ 4 scan0007 | |
| Engine weight reduction for the Spectre model, referencing pieces made in magnesium. | 29th Dec 1934 | Box 96 \ 4 scan0008 | |
| Weight breakdown for a 31-EX Spectre Park Ward Enclosed Limousine coachwork. | 1st Jan 1935 | Box 96 \ 4 scan0009 | |
| Calculation sheet comparing vehicle body weights with deductions and additions for various components. | 22th Mar 1935 | Box 96 \ 4 scan0010 | |
| Comparison of weights between a Narrow Pin Type and Standard Bentley crankshaft. | 22th Mar 1935 | Box 96 \ 4 scan0011 | |
| Car weight reduction by using smaller wheels and tyres. | 19th Mar 1935 | Box 96 \ 4 scan0012 | |
| Comparative table of wheel and tyre specifications and heights for various car models. | 19th May 1938 | Box 96 \ 4 scan0013 | |
| Comparative table of wheel and tyre weights and ground clearance for various car models. | 14th Mar 1938 | Box 96 \ 4 scan0014 | |
| Comparative analysis of petrol tank weights for various car models. | 25th Mar 1935 | Box 96 \ 4 scan0015 | |
| Revised matrix weights table showing weights, frontal area, depth, volume, and weight per unit volume for various models. | 25th Mar 1935 | Box 96 \ 4 scan0016 | |
| Weights for the Spectre's Front Shock Damper and Front Stabiliser. | 30th Mar 1935 | Box 96 \ 4 scan0017 | |
| List of component weights for the Spectre front shock damper and front stabiliser. | 29th Mar 1935 | Box 96 \ 4 scan0018 | |
| Table of revised matrix weights and dimensions for various models. | 16th Apr 1935 | Box 96 \ 4 scan0019 | |
| Weights obtained from the first two Spectre cars built. | 29th Apr 1935 | Box 96 \ 4 scan0020 | |
| Complete weight analysis of Spectre cars against a standard Phantom II. | 29th Apr 1935 | Box 96 \ 4 scan0021 | |
| Weight analysis of Spectre cars against a revised Phantom II long type chassis. | 13th May 1935 | Box 96 \ 4 scan0022 | |
| Cover memo for charts detailing the weights of Spectre units affected by design modifications. | 13th May 1935 | Box 96 \ 4 scan0023 | |
| List of weights for Spectre (3.5-1) spring suspension and damper components. | 11th May 1935 | Box 96 \ 4 scan0024 | |
| Continuation sheet listing the weights of various steering, pedal, and brake system components. | 11th May 1935 | Box 96 \ 4 scan0025 | |
| Continued weights sheet (Sheet 3) for the Spectre 3.5.1 model, detailing component weights. | 26th Jun 1935 | Box 96 \ 4 scan0026 | |
| List of weights for various units on the Spectre model for 10,000 miles trials. | 26th Jun 1935 | Box 96 \ 4 scan0027 | |
| Weight analysis comparing aluminium versus cast iron (C.I.) engine constructions. | 7th Aug 1935 | Box 96 \ 4 scan0028 | |
| Analysis of engine design variations, comparing valve types, and detailing the weight of an 8-cylinder engine. | 7th Aug 1935 | Box 96 \ 4 scan0029 | |
| Weights of the Spectre Chassis and its components. | 19th Sep 1935 | Box 96 \ 4 scan0030 | |
| Requesting the weight of a 33-gallon lightened petrol tank for Spectre, both as returned and with strengthened ends fitted. | 21th Sep 1935 | Box 96 \ 4 scan0031 | |
| Letter to the Automatic Products Company Ltd. regarding Lockheed Hydraulic Jacks, providing weighbridge figures for a Ph.III Saloon car. | 7th Nov 1935 | Box 96 \ 4 scan0032 | |
| Specification sheet detailing the weights of Spectre engine connecting rods and pistons. | 6th Nov 1935 | Box 96 \ 4 scan0033 | |
| Request to produce a weight chart for the Phantom III and 20/25 chassis components. | 29th Nov 1935 | Box 96 \ 4 scan0034 | |
| List of Phantom III chassis components and their corresponding weights. | 29th Nov 1935 | Box 96 \ 4 scan0035 | |
| Weight schedule form listing various vehicle components and sections. | 10th Jan 1936 | Box 96 \ 4 scan0036 | |
| Comparison of the weights of a Cadillac frame against two Phantom frames. | 10th Jan 1936 | Box 96 \ 4 scan0037 | |
| List of weights and capacities for various Buick components. | 18th Jan 1936 | Box 96 \ 4 scan0038 | |
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