| Description | Date | Identifier | |
| Letter from The Royal Automobile Club praising a car's performance during the Run to Brighton. | 23th Nov 1937 | Box 142 \ 1 scan0050 | |
| Distributor temperature tests conducted on engine 26.G.VI. | 26th Nov 1937 | Box 142 \ 1 scan0051 | |
| Blueprint showing dimensional measurements for engine components, including an exhaust manifold. | 26th Nov 1937 | Box 142 \ 1 scan0052 | |
| The introduction of a new experimental order numbering system. | 26th Nov 1937 | Box 142 \ 1 scan0053 | |
| Brief letter to Capt. A.W. Phillips regarding the performance of a car. | 27th Nov 1937 | Box 142 \ 1 scan0054 | |
| Announcing the revision of departmental numbers, changing the Experimental Dept. number from 52 to 470. | 29th Nov 1937 | Box 142 \ 1 scan0055 | |
| The subject of electrical welding, discussing its reliability, defects, and application to specific components like axles and frames. | 8th Dec 1937 | Box 142 \ 1 scan0056 | |
| Chassis output schedules for the week-ending January 1st, 1938. | 10th Dec 1937 | Box 142 \ 1 scan0057 | |
| Instructions on the method of duplication using a Fordigraph machine. | 14th Dec 1937 | Box 142 \ 1 scan0058 | |
| Instructions for using the Fordigraph duplication method. | 14th Dec 1937 | Box 142 \ 1 scan0059 | |
| Erratum correcting a Piece Number in a previous memorandum. | 13th Dec 1937 | Box 142 \ 1 scan0060 | |
| Requesting an Experimental Phantom III car and driver for Sir Thomas Inskip's visit to the Works. | 18th Dec 1937 | Box 142 \ 1 scan0061 | |
| Clarifying the procedure for different types of millwrights' requisitions. | 30th Dec 1937 | Box 142 \ 1 scan0062 | |
| Typed note from 'Sg' regarding sending a book on the County of Derbyshire to trade friends. | 11th Feb 1937 | Box 142 \ 1 scan0063 | |
| Thank you note for a book illustrating the County of Derbyshire. | 3rd Jan 1938 | Box 142 \ 1 scan0064 | |
| Circulating a 1930 Board resolution about company officials participating in record-making competitions. | 1st Jan 1938 | Box 142 \ 1 scan0065 | |
| Outlining the procedure for charging employees for private telephone calls. | 5th Jan 1938 | Box 142 \ 1 scan0066 | |
| Circular memo regarding the timing of trunk calls between London and Derby. | 1st Jan 1938 | Box 142 \ 1 scan0067 | |
| Loan of a Phantom III car (3-CP-10) for a press article, detailing its recurring dynamo faults and a drive shaft vibration. | 11th Jan 1938 | Box 142 \ 1 scan0068 | |
| Post Office telegram sent from Davosdorf to Derby. | 10th Jan 1938 | Box 142 \ 1 scan0069 | |
| Requesting to inspect a Phantom III vehicle before it is used by the press. | 12th Jan 1938 | Box 142 \ 1 scan0070 | |
| Request for an employee to receive private mileage payment for using their own car for business purposes. | 12th Jan 1938 | Box 142 \ 1 scan0071 | |
| Telegram from Robotham instructing the Experimental Department to leave a car at the station for the nine o'clock train. | 20th Jan 1938 | Box 142 \ 1 scan0072 | |
| Customs carnet and authority forms sent to Browns Hotel for signature. | 21th Jan 1938 | Box 142 \ 1 scan0073 | |
| Satirical explanation of the origin and purpose of the Aeronautical Inspection Directorate (A.I.D.). | 21th Jan 1938 | Box 142 \ 1 scan0074 | |
| Satirical commentary on the perceived bureaucracy of the Aeronautical Inspection Directorate (A.I.D.). | 21th Jan 1938 | Box 142 \ 1 scan0075 | |
| Appeal for a fairer attitude towards the A.I.D. Inspector, including a satirical hymn on the subject. | 21th Jan 1938 | Box 142 \ 1 scan0076 | |
| Short, typed poem about the Aeronautical Inspection Directorate (A.I.D.). | 21th Jan 1938 | Box 142 \ 1 scan0077 | |
| Short internal memo arranging Mr. Hailton's visit to the Works. | 21th Jan 1938 | Box 142 \ 1 scan0078 | |
| Issues with tracking experimental parts from outside suppliers due to missing order numbers. | 21th Jan 1938 | Box 142 \ 1 scan0079 | |
| Log sheet detailing parts received, including a carburetter and rubber tubing, with the responsible persons noted. | 26th Jan 1938 | Box 142 \ 1 scan0080 | |
| Correspondence to B. Mittell of Electric & Musical Industries Ltd. regarding a publication and vehicle accessories. | 26th Jan 1938 | Box 142 \ 1 scan0081 | |
| Letter from 'The Motor' magazine regarding a new service providing road test reports and reprints. | 31th Jan 1938 | Box 142 \ 1 scan0082 | |
| Letter from 'The Motor' magazine outlining new content initiatives like detailed road tests and technical reviews. | 31th Jan 1938 | Box 142 \ 1 scan0083 | |
| Page two of a letter from the Technical Editor of 'THE MOTOR' offering access to technical information and drawings. | 1st Oct 1937 | Box 142 \ 1 scan0084 | |
| The procedure for charging employees for private telephone calls. | 1st Oct 1937 | Box 142 \ 1 scan0085 | |
| The polarity testing of experimental and standard production coils. | 1st Oct 1937 | Box 142 \ 1 scan0086 | |
| Requesting that trunk calls between London and Derby be confined to a special daily reservation from 3 p.m. | 1st Oct 1937 | Box 142 \ 1 scan0087 | |
| Arranging press runs for the Phantom III model with 'Autocar' and 'The Motor' magazines. | 31th Jan 1938 | Box 142 \ 1 scan0088 | |
| Notifying all departments of the new address for Rotol Airscrews Limited. | 2nd Feb 1938 | Box 142 \ 1 scan0089 | |
| Letter thanking L. Pomeroy of 'The Motor' for sending copies of the Motor Road Test and 'Light Metal'. | 4th Feb 1938 | Box 142 \ 1 scan0090 | |
| Follow-up memo requesting a reply regarding Press Runs on the Phantom III. | 9th Feb 1938 | Box 142 \ 1 scan0091 | |
| Arrangements for press runs of a Phantom III car with 'Autocar' and 'The Motor' magazines. | 31th Jan 1938 | Box 142 \ 1 scan0092 | |
| Invitation to a luncheon for newly appointed Director, Mr. Harold Peake, during his visit to the Works. | 14th Feb 1938 | Box 142 \ 1 scan0093 | |
| Loan of a 25 HP car for the Lord Mayor's use and inquiring about its seating capacity. | 15th Feb 1938 | Box 142 \ 1 scan0094 | |
| From Rm. to Hs. proposing a tour of the Works, Foundries, and Hucknall for Major Revelle-Smith. | 24th Feb 1938 | Box 142 \ 1 scan0095 | |
| The development and applications of Spun Glass for heating, sound deadening, and silencers. | 25th Feb 1938 | Box 142 \ 1 scan0096 | |
| Thank you memo regarding the visit of the Lord Mayor of London to Derby. | 26th Feb 1938 | Box 142 \ 1 scan0097 | |
| Wage and bonus payment for an employee who forgot to clock out. | 26th Feb 1938 | Box 142 \ 1 scan0098 | |
| Letter from Electric & Musical Industries Limited regarding the ordering of a Consumers Research bulletin on automobiles. | 1st Mar 1938 | Box 142 \ 1 scan0099 | |
| Letter from 'The Motor' magazine regarding February road tests and an upcoming technical review on frame design. | 2nd Mar 1938 | Box 142 \ 1 scan0100 | |
| Letter from the Technical Editor discussing an upcoming review of V-type engines and the Auto Union racing car, and asking for topic suggestions. | 3rd Mar 1938 | Box 142 \ 1 scan0101 | |
| The excessive use and cost of the daily telephone call between London and Derby. | 3rd Mar 1938 | Box 142 \ 1 scan0102 | |
| Thank you letter to Mr. Pomeroy for providing road test reports. | 5th Mar 1938 | Box 142 \ 1 scan0103 | |
| Letter to B. Mittell of Electric & Musical Industries Ltd. regarding a loaned bulletin and the prospect of outsourcing work. | 8th Mar 1938 | Box 142 \ 1 scan0104 | |
| Letter to the Technical Editor of 'The Motor' magazine regarding V engines and carburetter manifolding systems. | 8th Mar 1938 | Box 142 \ 1 scan0105 | |
| A lunch invitation with representatives from British Airways and Briggs Bodies Ltd. | 8th Mar 1938 | Box 142 \ 1 scan0106 | |
| Letter from 'The Motor' magazine regarding a review of V manifold systems. | 9th Mar 1938 | Box 142 \ 1 scan0107 | |
| Millwright's requisition for work on safe doors and locks in the General Office. | 11th Mar 1938 | Box 142 \ 1 scan0108 | |
| Millwright's requisition to mend a window blind in a conference room. | 16th Mar 1938 | Box 142 \ 1 scan0109 | |
| Change in correspondence addressing for Mr. Walker of the Patent Department. | 14th Mar 1938 | Box 142 \ 1 scan0110 | |
| Letter to B. Mittell of Electric & Musical Industries Ltd. regarding work in the Tool Room. | 15th Mar 1938 | Box 142 \ 1 scan0111 | |
| Procedure for handling secret documents concerning future chassis production. | 15th Mar 1938 | Box 142 \ 1 scan0112 | |
| The order of 100 yellow quarto files. | 16th Mar 1938 | Box 142 \ 1 scan0113 | |
| Outlining the procedure for charging private telephone calls. | 28th Mar 1938 | Box 142 \ 1 scan0114 | |
| Refill for a notebook. | 29th Mar 1938 | Box 142 \ 1 scan0115 | |
| Brief internal memorandum confirming the understanding of a previously circulated memo. | 30th Mar 1938 | Box 142 \ 1 scan0116 | |
| Request to create an approximate scale drawing from an accompanying sketch. | 1st Apr 1938 | Box 142 \ 1 scan0117 | |
| Telegram to the Experimental Department in Derby with an instruction to leave a car at the station for Rowbotham. | 4th Apr 1928 | Box 142 \ 1 scan0118 | |
| Reminding staff that correspondence about non-production chassis must be marked 'Secret'. | 4th Apr 1938 | Box 142 \ 1 scan0119 | |
| Letter to the Institution of Automobile Engineers enclosing a corrected transcript of remarks on a paper. | 5th Apr 1938 | Box 142 \ 1 scan0120 | |
| Letter from the Institution of Automobile Engineers requesting a review of a discussion transcript. | 31th Mar 1938 | Box 142 \ 1 scan0121 | |
| To Mr. Robotham with questions following a presentation by Mr. Taub on carburation and engine design. | 14th Mar 1938 | Box 142 \ 1 scan0122 | |
| Engine design, including overhead valves, combustion chambers, streamlining, and dual induction. | 14th Mar 1938 | Box 142 \ 1 scan0123 | |
| The challenges of designing Duplex Induction Systems for optimal performance at both high and low speeds. | 14th Mar 1938 | Box 142 \ 1 scan0124 | |
| Announcing the resignation of Mr. Kindersley from the Board due to a conflict of interest. | 9th Apr 1938 | Box 142 \ 1 scan0125 | |
| Service complaint about a hole in a Kestrel engine's water jacket. | 20th Apr 1938 | Box 142 \ 1 scan0126 | |
| Addressed to all testers regarding a circular about giving opinions on second-hand cars. | 21th Apr 1938 | Box 142 \ 1 scan0127 | |
| To officials about the policy for giving opinions on secondhand cars following a customer complaint. | 12th Apr 1938 | Box 142 \ 1 scan0128 | |
| Telegram received by telephone regarding an arrangement to meet a train. | 21th Apr 1938 | Box 142 \ 1 scan0129 | |
| Telegram received by telephone regarding a meeting arrangement. | 21th Apr 1938 | Box 142 \ 1 scan0130 | |
| Letter from 'The Motor' magazine listing road tests and technical reviews published in March 1938. | 1st Apr 1938 | Box 142 \ 1 scan0131 | |
| Letter from the Technical Editor of 'THE MOTOR' regarding the Mercedes-Benz 1938 formula racing car and a Wolseley 25 reprint. | 22th Apr 1938 | Box 142 \ 1 scan0132 | |
| Paper on automobile manufacturing costs, comparing with American cars and considering the impact of a rationalised programme. | 22th Apr 1938 | Box 142 \ 1 scan0133 | |
| Listing completed but unfitted engineering schemes for Bentley II and Phantom III models, requesting instructions. | 3rd May 1938 | Box 142 \ 1 scan0134 | |
| Letter from 'The Motor' magazine discussing recent features and a list of road-tested cars. | 4th May 1938 | Box 142 \ 1 scan0135 | |
| Letter from the Technical Editor of 'THE MOTOR' magazine outlining upcoming articles and road tests. | 4th May 1938 | Box 142 \ 1 scan0136 | |
| Timing and availability of a chassis for sketching illustrations for the 25/30 HP Catalogue. | 4th May 1938 | Box 142 \ 1 scan0137 | |
| Outlining the procedure for correspondence with outside firms, including signing authority. | 6th May 1938 | Box 142 \ 1 scan0138 | |
| From Rm. to HPS regarding the circulation of information and disagreement with recommendations. | 6th May 1938 | Box 142 \ 1 scan0139 | |
| Secret memo regarding illustrations for the 25/30 catalogue, comparing chassis details with the Phantom III. | 7th May 1938 | Box 142 \ 1 scan0140 | |
| Short letter requesting information on a planned visit to Derby. | 7th May 1938 | Box 142 \ 1 scan0141 | |
| Typed memo from 'Rm.' to 'HPS.' clarifying the context of a previous memo, mentioning a new type of oil being tested. | 10th May 1938 | Box 142 \ 1 scan0142 | |
| HPS to Rm regarding unrecorded correspondence and procedures for technical matters. | 9th May 1938 | Box 142 \ 1 scan0143 | |
| Arranging a car pickup from the Midland Hotel regarding the 25/30 Catalogue. | 23th May 1938 | Box 142 \ 1 scan0144 | |
| Cover note forwarding a letter from John Marston Ltd that was inadvertently sent to the wrong person. | 26th May 1938 | Box 142 \ 1 scan0145 | |
| Announcing the appointment of Mr. I.A. Leslie to the post of Technical Cost Engineer and outlining his responsibilities. | 1st Jun 1938 | Box 142 \ 1 scan0146 | |
| Enquiry to Hardy Spicer & Co. Ltd. about sourcing a high-power universal joint for an aero application. | 1st Jun 1938 | Box 142 \ 1 scan0147 | |
| Brief notes on engine component materials, finishes, and design to reduce wear and improve performance. | 8th Jun 1938 | Box 142 \ 1 scan0148 | |
| Letter from Mr. W.A. Robotham declining an invitation to the opening of new Works and Offices. | 8th Jun 1938 | Box 142 \ 1 scan0149 | |
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