| Description | Date | Identifier | |
| Confirmation of a wire sent from West Wittering regarding a Marmon ignition switch and a starter switch. | 3rd Mar 1922 | Box 32 \ 5 Scan187 | |
| Dispatch of a Delco Buzzer for the Marmon. | 3rd Mar 1922 | Box 32 \ 5 Scan188 | |
| The renewal of car licenses for several vehicles. | 10th Mar 1922 | Box 32 \ 5 Scan189 | |
| Registration of Marmon, Essex, and 26357 vehicles. | 14th Mar 1922 | Box 32 \ 5 Scan190 | |
| Disposal of D.F.P., Essex, and Marmon cars, and recommending the new 24 HP Sunbeam as a potential replacement. | 14th Jun 1922 | Box 32 \ 5 Scan191 | |
| Arguing against adopting a glass window on the Goshawk carburetter's float chamber. | 3rd Jul 1922 | Box 32 \ 5 Scan192 | |
| Requesting the transfer and modification of several vehicle chassis and cars. | 5th Jul 1922 | Box 32 \ 5 Scan193 | |
| Modifications and issues with the Goshawk-11 and 3.EX cars, focusing on ignition, carburettor, and suspension. | 1st Jul 1922 | Box 32 \ 5 Scan194 | |
| Progress report on engine and chassis development, including crankshaft tests, springs and shock absorbers for the G.1 engine and 3.EX car. | 14th Jul 1922 | Box 32 \ 5 Scan195 | |
| Inquiry regarding the delivery of a Marmon Car for sale. | 14th Jul 1922 | Box 32 \ 5 Scan196 | |
| Proposal to keep the Marmon car for experimental work. | 24th Jul 1922 | Box 32 \ 5 Scan197 | |
| Test report on engine vibration in a 'Marmon' car under different mounting conditions. | 25th Jul 1922 | Box 32 \ 5 Scan198 | |
| Status and potential disposal of the Marmon Car, reference X. 1692. | 10th Aug 1922 | Box 32 \ 5 Scan199 | |
| Mr. Royce's design preferences for a 40/50 chassis oil level indicator, comparing it to a Marmon gauge. | 16th Dec 1922 | Box 32 \ 5 Scan200 | |
| Technical report on tests conducted to understand and measure steering wobbles on a 40/50 chassis. | 12th Jan 1923 | Box 32 \ 5 Scan201 | |
| Results of various tests conducted to understand and cure steering wobbles. | 12th Jan 1923 | Box 32 \ 5 Scan202 | |
| Tests investigating the effect of tyre pressure and vehicle weight on wheel wobble. | 12th Jan 1923 | Box 32 \ 5 Scan203 | |
| Analysis of chassis and steering wobble, its causes, and methods for reduction through friction and component modification. | 12th Jan 1923 | Box 32 \ 5 Scan204 | |
| Technical analysis of steering wobble issues, comparing different vehicles and listing alterations to reduce or eliminate the problem. | 20th Jan 1923 | Box 32 \ 5 Scan205 | |
| Instructions and diagram for a load test on a steering wheel assembly. | 20th Jan 1923 | Box 32 \ 5 Scan206 | |
| On the successful development of an induction pipe yielding more power, and a proposal to transfer experiments to the Marmon engine. | 2nd Feb 1923 | Box 32 \ 5 Scan207 | |
| Induction pipe's fuel mixture distribution to cylinders. | 16th Feb 1923 | Box 32 \ 5 Scan208 | |
| Analysis of the causes of unequal fuel distribution in a six-cylinder engine, discussing torque and running issues at low speeds. | 16th Feb 1923 | Box 32 \ 5 Scan209 | |
| Analysis of fuel distribution in a Marmon pipe, leading to the starving of specific cylinders. | 15th Mar 1923 | Box 32 \ 5 Scan210 | |
| Test bench experiments using a Marmon engine for induction pipe development, comparing its port arrangement with an E.A.C. engine. | 15th Mar 1923 | Box 32 \ 5 Scan211 | |
| Engine testing, comparing the performance of the Marmon and Goshawk -11 engines and considering different valve timings and port arrangements. | 15th Mar 1923 | Box 32 \ 5 Scan212 | |
| Fuel distribution experiments for a Marmon engine, comparing Stromburg and U.S. carburetters. | 15th Mar 1923 | Box 32 \ 5 Scan213 | |
| Analysis of non-homogeneous fuel mixture supply and petrol spray paths in an engine manifold. | 10th Apr 1923 | Box 32 \ 5 Scan214 | |
| Request for parts for a 1920 Marmon 34 car for the Experimental Department. | 10th Apr 1923 | Box 32 \ 5 Scan215 | |
| 'Hs.' to 'O.O.' authorising work by Sanderson & Holmes Ltd. | 9th Nov 1923 | Box 32 \ 5 Scan216 | |
| To Sanderson & Holmes Ltd. regarding the storage of a Marmon car and a 40/50 HP Rolls-Royce (chassis 48PK). | 16th Nov 1923 | Box 32 \ 5 Scan217 | |
| The disposal of an Isotta Fraschini, a Marmon, and an experimental 4-EX car. | 2nd Feb 1924 | Box 32 \ 5 Scan218 | |
| Sale and repair arrangements for three vehicles: an Isotta Fraschini, a Marmon, and a 4-EX. | 22th Feb 1924 | Box 32 \ 5 Scan219 | |
| Short memo about sending a Marmon car to London. | 3rd Mar 1924 | Box 32 \ 5 Scan220 | |
| Diagram illustrating the arrangement of a 'Marmon' hot-spot induction and exhaust system. | 27th Feb 1921 | Box 32 \ 5 Scan221 | |
| Diagram showing the dimensions and angles of a Marmon Axle Pivot. | 12th Mar 1924 | Box 32 \ 5 Scan222 | |
| The sale and potential transport of a Marmon car to London. | 12th Mar 1924 | Box 32 \ 5 Scan223 | |
| Dispatch of a Marmon car to Lillie Hall for sale. | 1st Apr 1924 | Box 32 \ 5 Scan224 | |
| List of tools and spares for a Marmon car. | 2nd Apr 1924 | Box 32 \ 5 Scan225 | |
| Dispatch note to Lillie Hall for one Marmon Car with a list of spares and tools. | 13th Jul 1927 | Box 32 \ 5 Scan226 | |
| Letter about the self-starter on the new Marmon Car. | 13th Jul 1927 | Box 32 \ 5 Scan227 | |
| Letter from Barker & Co. coachbuilders regarding the self-starter mechanism on a Marmon car, suggesting an inspection. | 8th Jul 1927 | Box 32 \ 5 Scan228 | |
| Requesting particulars for a Marmon starter motor for future testing. | 14th Jul 1927 | Box 32 \ 5 Scan229 | |
| Particulars for a Marmon Car, noting the absence of starter motor details. | 25th Jul 1927 | Box 32 \ 5 Scan230 | |
| Specifications sheet for a motor car, showing details for the engine and chassis. | 25th Jul 1927 | Box 32 \ 5 Scan231 | |
| Promotional document detailing the mechanical features and innovations of The Little Marmon 8 car. | 5th May 1927 | Box 32 \ 5 Scan232 | |
| Reprint from 'The AUTO' journal about the 'New Little Marmon'. | 5th May 1927 | Box 32 \ 5 Scan233 | |
| Overview of the 'New Little Marmon' car, detailing its eight-in-line engine, suspension, back-axle drive, and other features. | 5th May 1927 | Box 32 \ 5 Scan234 | |
| Page from 'The Auto' magazine describing the features, equipment, and pricing for Marmon car models. | 5th May 1927 | Box 32 \ 5 Scan235 | |
| Price list for various car models and optional extras from sole concessionaires Pass and Joyce, Ltd. | 5th May 1927 | Box 32 \ 5 Scan236 | |
| The cover of the specifications booklet for the 'little Marmon 8' automobile. | 5th May 1927 | Box 32 \ 5 Scan237 | |
| Specifications sheet for 'The little MARMON 8' automobile. | 5th May 1927 | Box 32 \ 5 Scan238 | |
| Compliments slip from Pass and Joyce Ltd. | 5th May 1927 | Box 32 \ 5 Scan239 | |
| Sales brochure for 'The Little Marmon' car, detailing new developments, models, and prices. | 5th May 1927 | Box 32 \ 5 Scan240 | |
| Sales brochure for the 'Little Marmon' range of automobiles, featuring four different body styles. | 25th Aug 1930 | Box 32 \ 5 Scan241 | |
| The cooling performance of the Phantom II compared with other cars at Brooklands. | 25th Aug 1930 | Box 32 \ 5 Scan242 | |
| Comparison of cooling system top water tank volume and vehicle performance against competitor cars. | 25th Aug 1930 | Box 32 \ 5 Scan243 | |
| Performance analysis comparing car models on comfort, acceleration, and maximum track speeds. | 25th Mar 1930 | Box 32 \ 5 Scan244 | |
| Gains from a 112-degree camshaft and higher compression. | 25th Aug 1930 | Box 32 \ 5 Scan245 | |
| Comparative data sheet for various cars, detailing face area, volume per litre disp. per mile, and on-track temperature readings. | 1st Sep 1930 | Box 32 \ 5 Scan246 | |
| Two line graphs comparing acceleration figures and speedometer calibrations for various cars. | 1st Sep 1930 | Box 32 \ 5 Scan247 | |
| Comparative analysis of cooling system specifications and performance for various automobiles. | 1st Sep 1930 | Box 32 \ 5 Scan248 | |
| Relationship between the periodicity of vibrating mechanical systems and their linear dimensions. | 13th Mar 1918 | Box 33 \ 1 Scan001 | |
| Warning employees against the improper dissemination of confidential information regarding aircraft and aero engines. | 22th Oct 1918 | Box 33 \ 1 Scan002 | |
| Reference sheet listing the Greek alphabet. | 28th Jan 1919 | Box 33 \ 1 Scan003 | |
| Internal routing memo for an attached letter to be noted by department members. | 25th Oct 1918 | Box 33 \ 1 Scan004 | |
| Confidential Admiralty letter regarding the revocation of wartime regulations on sharing information about ships. | 6th Mar 1919 | Box 33 \ 1 Scan005 | |
| The distribution of forms to staff for a welfare scheme survey. | 3rd Apr 1919 | Box 33 \ 1 Scan006 | |
| Typed set of driving directions for the route to Margate. | 28th Jun 1919 | Box 33 \ 1 Scan007 | |
| Providing the most direct route to Margate, including estimated travel time and a marked map. | 28th Jun 1919 | Box 33 \ 1 Scan008 | |
| Correct addressing of letters and blueprints to the American branch. | 1st Oct 1919 | Box 33 \ 1 Scan009 | |
| Letter regarding the correct addressing of letters and blueprints to the New York office. | 23th Sep 1919 | Box 33 \ 1 Scan010 | |
| Instructing staff to mislabel new car chassis and engine drawings to mislead outsiders into believing they are for new aero engines. | 5th Nov 1919 | Box 33 \ 1 Scan011 | |
| Conversion table for various tapers, providing corresponding angles and dimensions. | 24th Jan 1920 | Box 33 \ 1 Scan012 | |
| Confirming arrangements for the removal of engines from the experimental shed to create more space. | 18th Feb 1920 | Box 33 \ 1 Scan013 | |
| Cover letter forwarding correspondence from the Society of British Aircraft Constructors about a scheme for ordering aircraft and aero engines. | 2nd Feb 1920 | Box 33 \ 1 Scan014 | |
| Letter from the Air Ministry outlining the procedure for ordering new aircraft and aero-engine designs from private firms. | 14th Feb 1920 | Box 33 \ 1 Scan015 | |
| Instruction to search files at Derby to identify in which departments the clock stamp has ceased to function. | 25th Feb 1920 | Box 33 \ 1 Scan016 | |
| Internal system of clock-stamping documents to track their movement between departments. | 25th Feb 1920 | Box 33 \ 1 Scan017 | |
| Outlining the internal process for handling commercial correspondence concerning the sale of aero engines. | 25th Feb 1920 | Box 33 \ 1 Scan018 | |
| Requesting particular care be taken when sorting letters to avoid confusion between the abbreviations 'Ck' and 'Ct'. | 9th Mar 1920 | Box 33 \ 1 Scan019 | |
| Confirming the procedure for recording and preserving experimental reports in dedicated books. | 25th Mar 1920 | Box 33 \ 1 Scan020 | |
| Halting design alterations to prioritize output due to a moulders' strike and financial pressures. | 25th Mar 1920 | Box 33 \ 1 Scan021 | |
| Outlining the procedure for commencing work and routing instructions to ensure correct departmental process. | 10th Apr 1920 | Box 33 \ 1 Scan022 | |
| Letter to the editor of 'The Electrical Review' regarding the correct spelling of tumbler switches. | 10th Apr 1920 | Box 33 \ 1 Scan023 | |
| Outlining cost-saving measures for postage and telegrams. | 26th Apr 1920 | Box 33 \ 1 Scan024 | |
| Outlining a re-arrangement of work duties for Colonel Barrington and Mr. Day. | 19th Apr 1920 | Box 33 \ 1 Scan025 | |
| Clarifying responsibility for design alterations and warning a Mr. Bailey against making changes without consulting the Designing Department. | 19th Apr 1920 | Box 33 \ 1 Scan026 | |
| Company accommodation for male officers at 39 Munster Road, Fulham, London. | 22th Apr 1920 | Box 33 \ 1 Scan027 | |
| Providing travel directions to 39 Munster Road via the London Underground. | 22th Apr 1920 | Box 33 \ 1 Scan028 | |
| Defining the responsibilities and authority of the Works Manager at the Derby site. | 10th May 1920 | Box 33 \ 1 Scan029 | |
| Outlining exceptions to company procedure and clarifying departmental authority. | 10th May 1920 | Box 33 \ 1 Scan030 | |
| New postal arrangements to consolidate non-confidential mail to reduce postage and stationery costs. | 19th May 1920 | Box 33 \ 1 Scan031 | |
| Outlining cost-saving measures for postage and telegrams. | 26th Jun 1920 | Box 33 \ 1 Scan032 | |
| Discouraging design alterations due to a moulders' strike and the financial pressure to maintain output. | 18th Jun 1920 | Box 33 \ 1 Scan033 | |
| From EFC to CJ regarding a request about the electrical equipment of the 1920 R.R. Car. | 21th Jul 1920 | Box 33 \ 1 Scan034 | |
| Letter from an author requesting a wiring diagram for a 1920 model for inclusion in a book and articles. | 19th Jul 1920 | Box 33 \ 1 Scan035 | |
| Clarifying the use of departmental indicating letters for internal correspondence to avoid misdelivery. | 22th Jun 1920 | Box 33 \ 1 Scan036 | |
| Request to fit locks on test sheds after a car crash and install a new engine test bench. | 11th Oct 1920 | Box 33 \ 1 Scan037 | |
| Letter proposing a device for indicating ignition faults using safety spark gaps. | 13th Oct 1920 | Box 33 \ 1 Scan038 | |
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