| Description | Date | Identifier | |
| Letter describing an ignition fault indicator device for engines, particularly aero engines. | 15th Oct 1920 | Box 33 \ 1 Scan039 | |
| Letter to Mr. F. W. Conway declining his submitted 'Ignition Indicating Device'. | 15th Oct 1920 | Box 33 \ 1 Scan040 | |
| Promotional letter from publishers Crosby Lockwood & Son for the book 'Electric Spark Ignition'. | 15th Nov 1920 | Box 33 \ 1 Scan041 | |
| From EFC to Sn. regarding the requirement for a new file case for records. | 13th Dec 1920 | Box 33 \ 1 Scan042 | |
| Invitation from British Thomson-Houston to visit their magneto factory and discuss wireless work and a new igniter design. | 16th Dec 1920 | Box 33 \ 1 Scan043 | |
| Letter from The British Thomson-Houston Company regarding a temporary works shutdown. | 16th Dec 1920 | Box 33 \ 1 Scan044 | |
| Letter to Mr. A.P. Young arranging a post-Christmas visit to Rugby and Coventry Works regarding magnetos and wireless work. | 20th Dec 1920 | Box 33 \ 1 Scan045 | |
| The second page of a letter confirming an address and expressing pleasure at an upcoming meeting to see a new design of an Ignitor. | 11th Aug 1920 | Box 33 \ 1 Scan046 | |
| Letter from The British Thomson-Houston Company Limited to Mr. Clark regarding arrangements for a visit to Coventry. | 22th Dec 1920 | Box 33 \ 1 Scan047 | |
| Letter from The British Thomson-Houston Company regarding a factory visit affected by a Christmas shutdown. | 22th Dec 1920 | Box 33 \ 1 Scan048 | |
| Letter to Mr. A.P. Young confirming travel arrangements to Kenilworth. | 23th Dec 1920 | Box 33 \ 1 Scan049 | |
| Listing various materials and parts returned to Derby in a Buick car. | 10th Jan 1922 | Box 33 \ 1 Scan050 | |
| Letter from Joseph Tracy of Automobile Engineering offering motor testing services. | 24th Jan 1921 | Box 33 \ 1 Scan051 | |
| Increased telephone call charges, recommending telegrams or special postal services to save costs. | 9th Feb 1921 | Box 33 \ 1 Scan052 | |
| Reduction of 40/50HP chassis output from over forty to thirty-five per week and the consequent need to cut departmental establishment charges. | 1st Feb 1921 | Box 33 \ 1 Scan053 | |
| From EFC to Hr. regarding sending old Lucas apparatus to the Instruction School. | 2nd Feb 1921 | Box 33 \ 1 Scan054 | |
| Observing the use of mechanical washing machines for cleaning parts in American factories. | 10th Feb 1921 | Box 33 \ 1 Scan055 | |
| The reduction of establishment charges due to a contemplated decrease in chassis production. | 25th Feb 1921 | Box 33 \ 1 Scan056 | |
| Proposed draft letter outlining a new system for controlling company expenditure during a financial depression. | 15th Mar 1921 | Box 33 \ 1 Scan057 | |
| List of regular company outgoings that a department chief is authorised to submit for. | 15th Mar 1921 | Box 33 \ 1 Scan058 | |
| List of expenditure categories and materials, with a note on ordering procedures. | 13th Jul 1906 | Box 33 \ 1 Scan059 | |
| Page outlining procedures for authorising departmental expenditure and the role of a 'criticising officer'. | 13th Jul 1906 | Box 33 \ 1 Scan060 | |
| Procedures for departmental expenditure control, using charts to track spending and output. | 16th Nov 1920 | Box 33 \ 1 Scan061 | |
| New system for controlling departmental expenditure through rations based on output and profits. | 14th Apr 1921 | Box 33 \ 1 Scan062 | |
| Quarterly memorandum regarding the cost and authorization of telephone calls and telegrams. | 14th Apr 1921 | Box 33 \ 1 Scan063 | |
| Arranging the personal use of an experimental car for a family trip to the seaside. | 30th Apr 1921 | Box 33 \ 1 Scan064 | |
| Arranging a tour of the Derby Works for a delegation from America and Canada. | 7th May 1921 | Box 33 \ 1 Scan065 | |
| Short memo confirming adherence to instructions regarding economy measures for telephones. | 10th May 1921 | Box 33 \ 1 Scan066 | |
| Outlining new procedures for authorising expenditure and issuing orders. | 26th May 1921 | Box 33 \ 1 Scan067 | |
| Letter to Charles Napier, Esq., arranging a visit to the Works in Derby. | 6th Jun 1921 | Box 33 \ 1 Scan068 | |
| Outlining the decision to dispense with the services of apprentices who reach the age of 21. | 7th Jun 1921 | Box 33 \ 1 Scan069 | |
| Internal memorandum regarding the correction of a bonus overpayment for an employee named Ratcliffe. | 13th Jun 1921 | Box 33 \ 1 Scan070 | |
| New classification of unemployment books under the 1920 Unemployment Act. | 13th Jun 1921 | Box 33 \ 1 Scan071 | |
| Internal memorandum outlining new procedures for submitting requisitions to limit expenditure. | 15th Jun 1921 | Box 33 \ 1 Scan072 | |
| Confirmation memo regarding instructions for the limitation of expenditure. | 20th Jun 1921 | Box 33 \ 1 Scan073 | |
| The difficulty in getting Disposal Stores to accept returned parts without a fault diagnosis. | 21th Jun 1921 | Box 33 \ 1 Scan074 | |
| Outlining the procedure for handling letters and memos from Springfield. | 1st Jul 1921 | Box 33 \ 1 Scan075 | |
| Updated charges for using company cars and the reasons behind them. | 1st Jul 1921 | Box 33 \ 1 Scan076 | |
| Urging managers to effect significant economies and reduce expenditure due to a reduction in chassis output. | 12th Jul 1921 | Box 33 \ 1 Scan077 | |
| Page two of a letter requesting a report on departmental economies and future suggestions. | 12th Jul 1921 | Box 33 \ 1 Scan078 | |
| Circulating a Board resolution regarding the use of company cars and the necessity of a mechanic. | 16th Jul 1921 | Box 33 \ 1 Scan079 | |
| Requesting the submission of holiday dates and details of staff providing cover during absences. | 11th Aug 1921 | Box 33 \ 1 Scan080 | |
| Clarifying company policy on employee transport costs and encouraging a specific employee to use experimental cars for feedback. | 24th Aug 1921 | Box 33 \ 1 Scan081 | |
| Quoting an instruction that company property cannot be sold without prior consent from the General Manager or CJ. | 15th Sep 1921 | Box 33 \ 1 Scan082 | |
| Mileage charges for officials using various models of company cars. | 29th Sep 1921 | Box 33 \ 1 Scan083 | |
| Clarifying the abbreviation to be used for Mr H. Royce to avoid confusion. | 21th Oct 1921 | Box 33 \ 1 Scan084 | |
| Letter announcing the appointment of Mr. H. Royce as the company's Buyer, outlining the division of responsibilities. | 24th Oct 1921 | Box 33 \ 1 Scan085 | |
| Letter regarding a catalogue of French car types being sent to the experimental department. | 26th Oct 1921 | Box 33 \ 1 Scan086 | |
| Arrangements for a lunch at 10 Kensington Crescent, noting the presence of Press Agents and an upcoming Agents' Luncheon. | 7th Nov 1921 | Box 33 \ 1 Scan087 | |
| Urgent request for an experimental car with a driver for a trip to York. | 8th Nov 1921 | Box 33 \ 1 Scan088 | |
| Internal announcement regarding the appointment of Mr. H. Royce as Buyer and the clarification of departmental responsibilities. | 11th Nov 1921 | Box 33 \ 1 Scan089 | |
| Letter from Rolls-Royce of America concerning invoices for a parcel shipped to Derby. | 1st Dec 1921 | Box 33 \ 1 Scan090 | |
| Personal letter regarding plans to leave France due to the state of trade. | 3rd Dec 1921 | Box 33 \ 1 Scan091 | |
| Letter from H. Holgate inquiring about a contract to rejoin the Experimental Department. | 5th Jan 1922 | Box 33 \ 1 Scan092 | |
| Follow-up letter regarding an unanswered query about the Experimental Department. | 5th Jan 1922 | Box 33 \ 1 Scan093 | |
| Letter fragment requesting a reply to settle on something for 1922. | 12th Dec 1921 | Box 33 \ 1 Scan094 | |
| Inter-departmental memo detailing a new two-part instruction from 'CJ' for handling works memos. | 12th Dec 1921 | Box 33 \ 1 Scan095 | |
| Inter-departmental memorandum encouraging verbal communication over written memos. | 14th Dec 1921 | Box 33 \ 1 Scan096 | |
| Inter-departmental memorandum suggesting more verbal communication and a simplified process for circulating Standardisation Sheets. | 14th Dec 1921 | Box 33 \ 1 Scan097 | |
| Inter-departmental memo regarding the procedure for forwarding daily carbon copies. | 16th Dec 1921 | Box 33 \ 1 Scan098 | |
| Inter-departmental memorandum clarifying the procedure for sending copies of correspondence to C.J. | 19th Dec 1921 | Box 33 \ 1 Scan099 | |
| From CJ to EFC requesting an explanation for non-compliance with ordering procedures, citing two specific cases. | 1st Jan 1922 | Box 33 \ 1 Scan100 | |
| Damaged instruments from Weston Electrical Co. and an unsolicited dynamo from Lucas Elec. Co. | 27th Jan 1922 | Box 33 \ 1 Scan101 | |
| Request for a small brass sleeve and three 'Invara' steel rods for grandfather clock pendulums. | 2nd Feb 1922 | Box 33 \ 1 Scan102 | |
| Assessment of documents at risk in case of a serious fire and its potential impact. | 7th Mar 1922 | Box 33 \ 1 Scan103 | |
| Covering memo for a communication from the Sales Department regarding cars sent to France. | 8th Mar 1922 | Box 33 \ 1 Scan104 | |
| Potential loss of experimental department documents by fire and the practicalities of storage in the Strong Room. | 15th Mar 1922 | Box 33 \ 1 Scan105 | |
| Announcing new telephone numbers and a telegraphic address for the Conduit St. office. | 22th Mar 1922 | Box 33 \ 1 Scan106 | |
| Directive to consult solicitors before writing letters regarding potential legal claims, following a motor car accident at Cricklewood. | 31th Mar 1922 | Box 33 \ 1 Scan107 | |
| The unauthorized taking of parts from fitting bays and reinforcing the correct procedure for acquiring replacements. | 4th Apr 1922 | Box 33 \ 1 Scan108 | |
| Instructing that solicitors be consulted before writing any letters regarding motor car accidents. | 31th Mar 1922 | Box 33 \ 1 Scan109 | |
| Notice detailing the revised charges for telephone trunk calls based on the time of day. | 18th Aug 1922 | Box 33 \ 1 Scan110 | |
| Telegram regarding a delay in securing shipping berths for cars. | 29th May 1922 | Box 33 \ 1 Scan111 | |
| Instructing a change in the use of work cards for timekeeping. | 16th Sep 1922 | Box 33 \ 1 Scan112 | |
| Request for four size 5 millboards and 2 yards of tracing cloth to be sent with the next car. | 28th Sep 1922 | Box 33 \ 1 Scan113 | |
| Telegram received by telephone regarding the transport of pipe dogs and screwing dies for an iron water pipe. | 8th Nov 1922 | Box 33 \ 1 Scan114 | |
| Internal instruction on cost-saving methods for sending international cablegrams. | 4th Oct 1922 | Box 33 \ 1 Scan115 | |
| Instructing the recipient to discontinue use of Pistern Hill road to avoid a potential injunction. | 16th Oct 1922 | Box 33 \ 1 Scan116 | |
| Letter from the Hartshorne and Seals Rural District Council. | 18th Oct 1922 | Box 33 \ 1 Scan117 | |
| List assigning numbers to various factory departments and shops. | 18th Oct 1922 | Box 33 \ 1 Scan118 | |
| List of factory departments, processes, and workshop locations, continued from a previous page. | 18th Oct 1922 | Box 33 \ 1 Scan119 | |
| Continued list of company departments and sections. | 7th Nov 1922 | Box 33 \ 1 Scan120 | |
| Missed appointment with the Works Committee due to a member's illness and a lack of communication. | 7th Nov 1922 | Box 33 \ 1 Scan121 | |
| Letter clarifying the circumstances of a poorly organised conference and suggesting improvements for future appointments. | 22th Nov 1922 | Box 33 \ 1 Scan122 | |
| Controlling establishment charges, detailing the procedure for authorising staff increases or pay raises. | 5th Dec 1922 | Box 33 \ 1 Scan123 | |
| Recommending that Chief Assistants in the Experimental Department be placed under contract due to their access to sensitive information. | 12th Dec 1922 | Box 33 \ 1 Scan124 | |
| Assigning numbers to departments for handling Bonus Cards and Material Requisitions. | 28th Oct 1922 | Box 33 \ 1 Scan125 | |
| Organizing guides for a visit of the Motor Press to the Works, including details of a rehearsal. | 14th Dec 1922 | Box 33 \ 1 Scan126 | |
| Internal memorandum advising of the Chairman's new title, The Rt. Hon: The Lord Wargrave. | 20th Dec 1922 | Box 33 \ 1 Scan127 | |
| Series of suggestions for safeguarding the secrecy and security of the Experimental Shop. | 28th Dec 1922 | Box 33 \ 1 Scan128 | |
| Report outlining the requirements and proposals for the Experimental Department. | 29th Dec 1922 | Box 33 \ 1 Scan129 | |
| Suggestions for safeguarding the secrecy of the Experimental Department. | 29th Dec 1922 | Box 33 \ 1 Scan130 | |
| Suggestions for increasing the privacy and efficiency of the Experimental Department. | 15th Jan 1923 | Box 33 \ 1 Scan131 | |
| Estimate for works including fencing, a strong room, and a chassis dynamometer for the Experimental Department. | 15th Jan 1923 | Box 33 \ 1 Scan132 | |
| Estimate for a new lavatory block inside the Experimental Department. | 15th Jan 1923 | Box 33 \ 1 Scan133 | |
| Estimate for Scheme D detailing costs for the extension of the Experimental Department. | 15th Jan 1923 | Box 33 \ 1 Scan134 | |
| Discouraging the use of internal memos in favor of conversations and conferences. | 26th Jan 1923 | Box 33 \ 1 Scan135 | |
| Urgent request to authorize expenditure of £900 for a secrecy-related job in the Experimental Department. | 23th Jan 1923 | Box 33 \ 1 Scan136 | |
| Requesting arrangements to prevent vehicle use in avenues between test houses due to engine noise making it unsafe. | 26th Feb 1923 | Box 33 \ 1 Scan137 | |
| Quarterly note from CJ regarding the strict procedure for introducing changes to the chassis. | 26th Mar 1925 | Box 33 \ 1 Scan138 | |
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