| Description | Date | Identifier | |
| Modifications to car WMB-11 to remove detonation and gather experimental data. | 20th Jul 1939 | Box 109 \ 5 scan0141 | |
| Diagnosing and rectifying engine detonation issues in a 'New Wraith' car by adjusting ignition and fuel. | 21th Jul 1939 | Box 109 \ 5 scan0142 | |
| Requesting the dispatch of a heater motor to Mr. J. Lee Evans at Lillie Hall. | 27th Jul 1939 | Box 109 \ 5 scan0143 | |
| Despatch of a replacement heater motor for a Wraith and the return of the faulty unit for investigation. | 27th Jul 1939 | Box 109 \ 5 scan0144 | |
| Confirming receipt of a new heater motor and arranging for a replacement bracket. | 28th Jul 1939 | Box 109 \ 5 scan0145 | |
| To trace a heater motor sent to Messrs Joseph Lucas Ltd. for re-conditioning and report. | 11th Nov 1939 | Box 109 \ 5 scan0146 | |
| Requesting a material analysis on a failed servo star spring from a Sg's Wraith. | 16th Nov 1939 | Box 109 \ 5 scan0147 | |
| Responding to an inquiry about a heater motor that has not been received back. | 23th Nov 1939 | Box 109 \ 5 scan0148 | |
| Failure of a servo star spring on a Wraith, its effects, and the planned investigation. | 28th Nov 1939 | Box 109 \ 5 scan0149 | |
| Instruction to change the springs on Wraith chassis WXA-66 for Viscount Wimborne. | 19th Oct 1938 | Box 109 \ 5 scan0150 | |
| Response to a complaint report regarding modifications for Wraith Chassis No. WXA-27, detailing work carried out and associated costs. | 2nd Dec 1938 | Box 109 \ 5 scan0151 | |
| Typed note regarding credit for a removed cylinder head complete with valves and springs. | 2nd Dec 1938 | Box 109 \ 5 scan0152 | |
| Required modifications and inspections for a number of cars. | 22th Dec 1938 | Box 109 \ 5 scan0153 | |
| Forwarding a request from Mr John M. Colville for a Wraith capable of at least 80 m.p.h. | 30th Dec 1938 | Box 109 \ 5 scan0154 | |
| Customer letter regarding the exchange of a 1933 20/25 HP for a new, custom-specified Rolls Royce Wraith. | 26th Dec 1938 | Box 109 \ 5 scan0155 | |
| Short New Year's greetings note signed by John M. Colville. | 28th Dec 1938 | Box 109 \ 5 scan0156 | |
| Letter to J.M. Colville comparing the new Wraith model to the older 25/30, highlighting its superior features and design. | 3rd Jan 1938 | Box 109 \ 5 scan0157 | |
| Letter following up on a previous enquiry regarding a new 'Wraith' chassis, No. WMB 32. | 6th Jan 1939 | Box 109 \ 5 scan0158 | |
| Letter from John M. Colville requesting alterations and confirming the expected chassis delivery date. | 3rd Jan 1939 | Box 109 \ 5 scan0159 | |
| Letter to Mr. Robotham regarding feedback on the new Wraith chassis. | 7th Jan 1939 | Box 109 \ 5 scan0160 | |
| Letter discussing proposals for a smaller, lighter car body and lower steering. | 9th Jan 1938 | Box 109 \ 5 scan0161 | |
| Non-standard steering column height for Chassis WMB-32 for J.M. Colville, Esq. | 9th Jan 1938 | Box 109 \ 5 scan0162 | |
| Laboratory report on a broken change gear gate from a Wraith chassis, detailing material analysis and conclusion on the cause of fracture. | 21th Jan 1939 | Box 109 \ 5 scan0163 | |
| Replacement of a faulty thermometer on chassis WXA-47. | 30th Jan 1939 | Box 109 \ 5 scan0164 | |
| A customer's disappointment with the top speed of a Wraith and a request to increase it. | 7th Feb 1939 | Box 109 \ 5 scan0165 | |
| Follow-up memo regarding a proposal to improve the performance of a Wraith vehicle for a customer. | 9th Feb 1939 | Box 109 \ 5 scan0166 | |
| Letter discussing a potential car purchase, with details of a trade-in offer for a Packard against a Phantom III. | 2nd Mar 1939 | Box 109 \ 5 scan0167 | |
| Letter discussing the potential purchase of a Wraith car for £1850 and asking for suggestions on other suitable types or dealers. | 9th Mar 1939 | Box 109 \ 5 scan0168 | |
| Letter giving advice on purchasing a Limousine Wraith, comparing it to a Phantom III and suggesting contacts. | 9th Mar 1939 | Box 109 \ 5 scan0169 | |
| Follow-up action to send a 'Wraith' catalogue to Dorman Bradshaw. | 10th Mar 1939 | Box 109 \ 5 scan0170 | |
| Owners complaint report regarding a carburetter for chassis WXA.41. | 3rd Apr 1939 | Box 109 \ 5 scan0171 | |
| The repair and return of a displaced Callorstat for chassis WXA-58. | 6th Apr 1939 | Box 109 \ 5 scan0172 | |
| Customer Sir Ralph Millburn's dissatisfaction with chassis WRB-21's suspension and plans for modifications. | 25th May 1939 | Box 109 \ 5 scan0173 | |
| Customer Sir Ralph Millbourn's dissatisfaction with vehicle suspension and planned modifications. | 26th May 1939 | Box 109 \ 5 scan0174 | |
| Test drive report and analysis of suspension adjustments for chassis WRB-21 to improve ride quality. | 6th Jun 1939 | Box 109 \ 5 scan0175 | |
| Knocking sound from the near-side rear corner of the sliding roof to be attended to by Mulliners. | 6th Jun 1939 | Box 109 \ 5 scan0176 | |
| Follow-up letter regarding the successful resolution of a car's ride comfort issue for Sir Ralph Millbourn. | 7th Jun 1939 | Box 109 \ 5 scan0177 | |
| Requesting further details about the cause of a petrol supply failure from a specific complaint report. | 19th Jun 1939 | Box 109 \ 5 scan0178 | |
| Concerning ride problems on a Wraith for the Duke of Kent due to an exceptionally heavy body. | 20th Jun 1939 | Box 109 \ 5 scan0179 | |
| The final test and viewing arrangements for the Duke of Kent's Wraith. | 23th Jun 1939 | Box 109 \ 5 scan0180 | |
| Sand-proofing modifications for the Duke of Kent's car for its trip to Australia. | 4th Jul 1939 | Box 109 \ 5 scan0181 | |
| Advice on carburettor air cleaner options and fitting undersheets for The Duke of Kent's Wraith engine. | 6th Jul 1939 | Box 109 \ 5 scan0182 | |
| Shipment of a Wraith WHC-2 for the Duke of Kent to Australia and the fitting of under sheets. | 12th Feb 1939 | Box 109 \ 5 scan0183 | |
| Investigation into excessive front tyre wear on the Wraith model, comparing it to the 25/30 HP. | 11th Nov 1939 | Box 109 \ 5 scan0184 | |
| To the Transport Dept. requesting the adjustment of the toe-in for Wraith cars. | 20th Nov 1939 | Box 109 \ 5 scan0185 | |
| Wraith front tyre wear, suggesting running the front wheels parallel with no toe-in. | 13th Nov 1939 | Box 109 \ 5 scan0186 | |
| Letter from Salisbury Axle Company detailing various axle prints suitable for small cars and their availability. | 18th Oct 1939 | Box 109 \ 5 scan0187 | |
| Letter from Salisbury Transmission Company Limited discussing the supply of axles for 10.hp and 12.hp models. | 18th Oct 1939 | Box 109 \ 5 scan0188 | |
| Application of a Salisbury rear axle to the 'Myth' chassis. | 1st Nov 1939 | Box 109 \ 5 scan0189 | |
| Sourcing of a correct Salisbury rear axle for the 'Myth' vehicle. | 12th Dec 1940 | Box 109 \ 5 scan0190 | |
| Technical memo regarding the rear axle and brake design for the Myth project. | 20th Dec 1940 | Box 109 \ 5 scan0191 | |
| Enquiry to Salisbury Axle Company Ltd. regarding the supply of a custom axle with specific modifications. | 1st Jan 1941 | Box 109 \ 5 scan0192 | |
| Instructions for modifying a Salisbury axle to produce a rear axle for the 'Myth' car. | 4th Apr 1941 | Box 109 \ 5 scan0193 | |
| Dimensions for axle casing ends and the machining of old axle tubes. | 4th Apr 1941 | Box 109 \ 5 scan0194 | |
| Cover letter for an attached communication from the manufacturers of the Myth rear axle. | 11th Apr 1941 | Box 109 \ 5 scan0195 | |
| Cover note for an attached letter from the manufacturers of the 'Myth' rear axle. | 11th Apr 1941 | Box 109 \ 5 scan0196 | |
| Letter from Hardy Spicer & Co. Limited regarding the bore dimensions of an axle casing. | 8th Apr 1941 | Box 109 \ 5 scan0197 | |
| Issuance of instructions to produce a rear axle for the 'Myth' project. | 18th Mar 1941 | Box 109 \ 5 scan0198 | |
| Letter to Hardy Spicer & Co. Ltd. requesting details on the fit between the centre casing and tubes for a conversion. | 3rd Apr 1941 | Box 109 \ 5 scan0199 | |
| Instructions for modifying a Salisbury axle to produce the rear axle for the 'Myth' car. | 4th Apr 1941 | Box 109 \ 5 scan0200 | |
| Axle casing dimensions and machining requirements in collaboration with the Salisbury Axle Co. | 4th Apr 1941 | Box 109 \ 5 scan0201 | |
| File note cross-referencing information on experimental work and the Dedion axle for the 'Myth' project. | 5th Apr 1940 | Box 109 \ 5 scan0202 | |
| Parts list for the 'Myth' Rear Axle, Section 6120. | 24th Jun 1941 | Box 109 \ 5 scan0203 | |
| Instructions and parts list for an M.40 Test Rig concerning the Rear Axle. | 27th Jun 1941 | Box 109 \ 5 scan0204 | |
| New thermostat casing and cover for an M.60 test rig. | 2nd Jul 1941 | Box 109 \ 5 scan0205 | |
| Letter to Park Ward & Co. about blueprints and alterations for the Myth Chassis. | 10th Jul 1941 | Box 109 \ 5 scan0206 | |
| Moulding, casting, and design adjustments for M.40 Test Rig Tappets to address cracking issues. | 21th Jul 1941 | Box 109 \ 5 scan0207 | |
| Requesting the production of a test shaft for the M.40 Test Rig. | 24th Jul 1941 | Box 109 \ 5 scan0208 | |
| Parts list and scheme for an M.40 test rig and Morris 8 gearbox adaptation. | 26th Jul 1941 | Box 109 \ 5 scan0209 | |
| List of parts and instructions for a gearbox assembly. | 26th Jul 1941 | Box 109 \ 5 scan0210 | |
| Parts for the M.40 Test Rig Front Bumper, including procurement instructions. | 28th Jul 1941 | Box 109 \ 5 scan0211 | |
| The propeller shaft specifications for the 'Myth' chassis. | 29th Jul 1941 | Box 109 \ 5 scan0212 | |
| Letter to Park Ward, Ltd. regarding the assembly of the Myth chassis and a request for two frames. | 8th Aug 1941 | Box 109 \ 5 scan0213 | |
| Meeting minutes discussing the progress of the 'Myth' project, covering chassis construction, part sourcing, and rear axle options. | 8th Sep 1941 | Box 109 \ 5 scan0214 | |
| Specification document for project 'MYTH', detailing parts to be made in-house (HPS) or by outside contractors. | 9th Aug 1941 | Box 109 \ 5 scan0215 | |
| List of vehicle components and their respective suppliers. | 9th Aug 1941 | Box 109 \ 5 scan0216 | |
| Specification sheet for the 'MYTH' project, listing components and their designated manufacturers, either in-house (HPS) or outside contractors. | 9th Aug 1941 | Box 109 \ 5 scan0217 | |
| List of vehicle components and their associated suppliers or manufacturers. | 9th Aug 1941 | Box 109 \ 5 scan0218 | |
| Specification list for project 'MYTH', detailing parts and their manufacturers or suppliers. | 9th Aug 1941 | Box 109 \ 5 scan0219 | |
| List of vehicle components and their respective suppliers. | 9th Aug 1941 | Box 109 \ 5 scan0220 | |
| Specification document for project 'MYTH', listing parts and their assigned manufacturers or suppliers. | 9th Aug 1941 | Box 109 \ 5 scan0221 | |
| List of vehicle components and their corresponding manufacturers or suppliers. | 11th Aug 1941 | Box 109 \ 5 scan0222 | |
| The outcomes and action points from a conference on the production of the first two Myth cars. | 11th Aug 1941 | Box 109 \ 5 scan0223 | |
| Synchromesh fault on a car due to incorrect assembly, with a recommendation to update the detail drawings. | 6th Apr 1938 | Box 109 \ 5 scan0224 | |
| List of customer complaints regarding a Wraith car, covering ventilation, seating, brakes, and various noises. | 13th Apr 1938 | Box 109 \ 5 scan0225 | |
| Request for a car specification detailing items not up to final production standards and for a speedometer calibration. | 13th Apr 1938 | Box 109 \ 5 scan0226 | |
| Request to send a covering note to Messrs. Banks & Sons for a green luggage cover for car WXA.2. | 20th May 1938 | Box 109 \ 5 scan0227 | |
| List of modifications and parts required for a Wraith WXA.2 vehicle. | 31th May 1938 | Box 109 \ 5 scan0228 | |
| Request to send an official order to Sanderson & Holmes for work carried out mounting a new body to chassis WXA.2. | 1st Jun 1938 | Box 109 \ 5 scan0229 | |
| Coachwork repairs to a Wraith and the arrangement for building new wings on a production chassis. | 3rd Jun 1938 | Box 109 \ 5 scan0230 | |
| Note from Rm to Hs regarding a summary of work done on car WXA-2. | 3rd Jun 1938 | Box 109 \ 5 scan0231 | |
| Modifications to car WXA-2 to improve wind noise, with additional other and chassis work. | 3rd Jun 1938 | Box 109 \ 5 scan0232 | |
| Misfiring issue in a Wraith car caused by faulty sparking plug suppressors. | 17th Jun 1938 | Box 109 \ 5 scan0233 | |
| Request to replace an R.R. ignition with a Delco system, and a clarifying handwritten response. | 20th Jun 1938 | Box 109 \ 5 scan0234 | |
| Request to manufacture a middle silencer and downtake pipes for Wraith cars 25.G.VI. and WXA.2. | 16th Aug 1938 | Box 109 \ 5 scan0235 | |
| Instruction to modify the radiators on Hs's and Sg's Wraith cars with a steam valve. | 18th Aug 1938 | Box 109 \ 5 scan0236 | |
| Work order for modifications to be carried out on a Wraith WXA.2 vehicle. | 22th Aug 1938 | Box 109 \ 5 scan0237 | |
| Comparing the chassis weights of the Wraith model against the 25/30 model and experimental cars. | 21th Mar 1938 | Box 109 \ 5 scan0238 | |
| Weight of the Wraith chassis, comparing it with American cars, and requesting weight data. | 20th Aug 1938 | Box 109 \ 5 scan0239 | |
| Trial of heat-resisting steel for the exhaust expansion box on a Wraith WXA.2 car. | 20th Aug 1938 | Box 109 \ 5 scan0240 | |
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