| Description | Date | Identifier | |
| Quarterly note from Hs. to B.J. responding to two questions. | 30th Dec 1926 | Box 33 \ 1 Scan339 | |
| Clarifying the procedure for personal telephone calls and ensuring users are charged. | 31th Dec 1926 | Box 33 \ 1 Scan340 | |
| Quarterly note confirming adherence to instructions for the introduction of chassis changes. | 30th Dec 1926 | Box 33 \ 1 Scan341 | |
| Personal note from 'R' regarding their health and waiting for reports on work progress. | 14th Apr 1930 | Box 33 \ 1 Scan342 | |
| Confirming the procedure for sending copies of all reports to R. | 25th Apr 1930 | Box 33 \ 1 Scan343 | |
| Confirming the receipt of experimental aluminium pistons for 250 H.P engines. | 11th Nov 1910 | Box 33 \ 2 Scan001 | |
| Instruction for one half set of Pistons E.8029 (skirt type) and one half set of E.8030 (Zephyr type) for experimental engine No.XL190. | 11th Nov 1915 | Box 33 \ 2 Scan002 | |
| Request from the R.N.A.S. Central Supply Depot to return excess Aluminium Pistons that were oversupplied. | 16th Dec 1915 | Box 33 \ 2 Scan003 | |
| Requesting a status update on aluminium pistons, with a handwritten note about scrapped castings. | 2nd Dec 1915 | Box 33 \ 2 Scan004 | |
| Urging the expedited production of Aluminium Pistons E.8029 & E.8030 for an urgent government experiment. | 22th Dec 1915 | Box 33 \ 2 Scan005 | |
| The receipt and inspection of aluminium piston castings. | 29th Dec 1915 | Box 33 \ 2 Scan006 | |
| Defective Aluminium Piston castings and a request for replacements from stores. | 5th Jan 1916 | Box 33 \ 2 Scan007 | |
| The testing and types of experimental aluminium pistons. | 11th Jan 1916 | Box 33 \ 2 Scan008 | |
| Scrapping of some aluminium pistons and instructions to machine others. | 11th Jan 1916 | Box 33 \ 2 Scan009 | |
| Engine modifications for Commander Briggs' car, suggesting upgrades similar to those on car 49GB. | 20th Jan 1916 | Box 33 \ 2 Scan010 | |
| To Lieut. Kendall regarding issues with faulty old standard and new Zephyr type piston castings. | 21th Jan 1916 | Box 33 \ 2 Scan011 | |
| Aluminium pistons and following up on a memo received from Lieut. Kendall. | 7th Feb 1916 | Box 33 \ 2 Scan012 | |
| The fitting of aluminium pistons to Commander Briggs' car and notes on the performance of engine 49 G.B. | 7th Feb 1916 | Box 33 \ 2 Scan013 | |
| Instructions to modify a half set of rockers by adding a tappet screw and locknut, as per the provided sketch. | 10th Jan 1916 | Box 33 \ 2 Scan014 | |
| Hand-drawn instruction sheet with sketches and dimensions for a threaded component. | 10th Jan 1916 | Box 33 \ 2 Scan015 | |
| Instructions and drawing for an experimental tappet screw lock. | 10th Jan 1916 | Box 33 \ 2 Scan016 | |
| Recommendation to make hollow arm locking levers standard for Eagle engines following an 80-hour test. | 30th May 1916 | Box 33 \ 2 Scan017 | |
| Cover memo for the completed standardisation sheet for the RE 250 HP Engine Rocker Lever (X.1913). | 12th Jun 1916 | Box 33 \ 2 Scan018 | |
| Diagram of a valve rocker showing the arms drilled. | 6th Jun 1916 | Box 33 \ 2 Scan019 | |
| Alteration sheet detailing the standardization of drilled holes in the Rocker Lever for the 250-HP Aero Engine. | 12th Jun 1916 | Box 33 \ 2 Scan020 | |
| Request to manufacture a set of pistons with specific modifications for the RE 250 HP experimental engine. | 23th Nov 1915 | Box 33 \ 2 Scan021 | |
| To Mr. Hives regarding a modification to a 250 HP engine piston, with a request for a report on over-oiling. | 20th Dec 1915 | Box 33 \ 2 Scan022 | |
| Instruction to supply a modified set of pistons for the RE 250 HP engine to a Mr. Platford. | 20th Dec 1915 | Box 33 \ 2 Scan023 | |
| Visit to West Wittering and advocating for more frequent in-person discussions. | 25th Feb 1918 | Box 33 \ 2 Scan024 | |
| Surprising 70% efficiency of a Lucas 20 lb. starter motor and arranging a meeting regarding efficient battery ignition. | 4th Mar 1918 | Box 33 \ 2 Scan025 | |
| From R. to EFC. arranging for Mr. Royce to meet a visitor at Chichester. | 4th Mar 1918 | Box 33 \ 2 Scan026 | |
| Changing the date for a visit to West Wittering to deliver 'Condor' pieces for Mr. Royce. | 18th May 1918 | Box 33 \ 2 Scan027 | |
| Confirmation of a telegram regarding arrival plans. | 21th May 1918 | Box 33 \ 2 Scan028 | |
| Confirmation of a telegram arranging an evening meeting on the eleventh of the month. | 6th Dec 1918 | Box 33 \ 2 Scan029 | |
| From Rs. to EFC regarding a visit to West Wittering requested by Mr. Royce. | 8th Feb 1919 | Box 33 \ 2 Scan030 | |
| Copy of a telegram sent to R. regarding an arrival time in West Wittering. | 17th Jun 1919 | Box 33 \ 2 Scan031 | |
| Visit to West Wittering to inspect chassis 4.EX, its wiring status, and a fitted thermostat regulator. | 28th Feb 1920 | Box 33 \ 2 Scan032 | |
| Letter to the Proprietor of the Dolphin Hotel in Chichester requesting a room reservation. | 16th Mar 1920 | Box 33 \ 2 Scan033 | |
| Index for a report concerning a visit to West Wittering to discuss various vehicle components and chassis. | 5th May 1930 | Box 33 \ 2 Scan034 | |
| Design modifications for the 'Buzzard' and 'Vulture' bonnet models and the rear engine foot bracket. | 16th May 1920 | Box 33 \ 2 Scan035 | |
| Manufacturing instructions for a steering pad, main bracket, and silencer nozzle. | 18th May 1920 | Box 33 \ 2 Scan036 | |
| The construction of an exhaust silencer snout and cut-out flange, including Mr. Royce's design suggestions. | 1st Sep 1920 | Box 33 \ 2 Scan037 | |
| Technical memorandum discussing modifications to the rear road springs, silencer pipe, and front shock absorber anchorage for the 40/50 HP chassis. | 18th May 1920 | Box 33 \ 2 Scan038 | |
| Various engine design modifications, including for the 'Vulture' and six-cylinder models. | 18th Aug 1920 | Box 33 \ 2 Scan039 | |
| Meeting minutes discussing design considerations for the 'Buzzard' engine and chassis. | 18th May 1920 | Box 33 \ 2 Scan040 | |
| The inspection of 20 HP chassis parts with notes on proposed modifications. | 18th May 1920 | Box 33 \ 2 Scan041 | |
| Design considerations and required modifications for various chassis components. | 18th May 1920 | Box 33 \ 2 Scan042 | |
| Arranging travel and accommodation for a visit to West Wittering. | 15th Mar 1920 | Box 33 \ 2 Scan043 | |
| Confirming travel and accommodation arrangements for a visit to West Wittering. | 15th Mar 1920 | Box 33 \ 2 Scan044 | |
| Exchange and maintenance of Marmon and Buick cars for eventual sale. | 15th Dec 1920 | Box 33 \ 2 Scan045 | |
| Proposing a visit to Mr. Royce to present finished detail pieces of the Coshawk II. | 26th Apr 1921 | Box 33 \ 2 Scan046 | |
| Telegram received by telephone from Royce to Clarke regarding a Monday meeting. | 20th May 1921 | Box 33 \ 2 Scan047 | |
| Visit to West Wittering regarding Goshawk parts and complaints from America. | 6th Jun 1921 | Box 33 \ 2 Scan048 | |
| Proposing a visit to Mr. Royce in West Wittering with a Goshawk 11 engine and gearbox unit. | 1st Jul 1921 | Box 33 \ 2 Scan049 | |
| Confirming a convenient arrival day for a visit to West Wittering. | 9th Jul 1921 | Box 33 \ 2 Scan050 | |
| Short memo confirming arrangements for a visit to West Wittering with Mr. Hives. | 9th Sep 1921 | Box 33 \ 2 Scan051 | |
| Arranging a visit to West Wittering and discussing scheduling conflicts. | 4th Nov 1921 | Box 33 \ 2 Scan052 | |
| Visit to West Wittering with the Goshawk 11 car and updates on engine improvements. | 15th Nov 1921 | Box 33 \ 2 Scan053 | |
| Proposal for a visit to West Wittering with the Delage and Goshawk cars for Mr. Royce. | 9th Dec 1921 | Box 33 \ 2 Scan054 | |
| Recommending modifications to the 6.EX car with fittings for low-grade petrol and a Goshawk battery ignition for testing in France. | 16th Jan 1922 | Box 33 \ 2 Scan055 | |
| Confirmation of a telegram regarding a change to a meeting arrangement. | 18th Jan 1922 | Box 33 \ 2 Scan056 | |
| From E. to Hs. regarding Mr. Royce's schedule, the Goshawk project, and travel plans. | 31th Jan 1922 | Box 33 \ 2 Scan057 | |
| Arranging a visit to Mr. Royce to discuss the Goshawk II car and a separate EX Car. | 27th Jan 1922 | Box 33 \ 2 Scan058 | |
| Confirmation of a wire sent regarding a meeting with Hives and Platford and to bring the Goshawk. | 4th Feb 1922 | Box 33 \ 2 Scan059 | |
| Letter concerning a recent send-off, engine performance, and a planned works visit by A.V. Roe representatives. | 7th Aug 1922 | Box 33 \ 2 Scan060 | |
| On improvements to the Goshawk carburetter and steering, with plans for further modifications to another Goshawk or a 40/50 model. | 7th Aug 1922 | Box 33 \ 2 Scan061 | |
| Concerning travel and an office closure. | 27th Dec 1922 | Box 33 \ 2 Scan062 | |
| Bringing an alternative 40/50 HP vehicle as the 4-Goshawk-11 will not be ready from the coachbuilders. | 27th Dec 1922 | Box 33 \ 2 Scan063 | |
| Telegram from Royce in Chichester postponing a visit regarding the Goshawk project. | 29th Dec 1922 | Box 33 \ 2 Scan064 | |
| Confirmation of a telegram from Royce suggesting a visit postponement to Hives. | 29th Dec 1922 | Box 33 \ 2 Scan065 | |
| Confirming a telegram about proposed travel and meeting arrangements. | 1st Jan 1923 | Box 33 \ 2 Scan066 | |
| Short typed reply confirming a convenient meeting time with Mr. Royce. | 1st Jan 1923 | Box 33 \ 2 Scan067 | |
| Confirmation of a telegram arranging a convenient meeting time for Hives and Platford. | 22th Jan 1923 | Box 33 \ 2 Scan068 | |
| Telegram received by telephone arranging a meeting for Mr. Royce with Hives, Platford and Johnson. | 24th Jan 1923 | Box 33 \ 2 Scan069 | |
| Telegram from Mr. Royce arranging a meeting with Mr. Johnston. | 25th Jan 1923 | Box 33 \ 2 Scan070 | |
| Telegram from Royce arranging a meeting for Hives and Platford. | 24th Jan 1923 | Box 33 \ 2 Scan071 | |
| Delivery of the 'Goshawk 1' car and arranging a subsequent meeting. | 9th Feb 1923 | Box 33 \ 2 Scan072 | |
| Confirmation of a telegram from Royce to Hives, suggesting a meeting with Mr. Rowledge. | 12th Feb 1923 | Box 33 \ 2 Scan073 | |
| Telegram from Royce to Hives arranging a meeting to see the Goshawk platform. | 4th Feb 1937 | Box 33 \ 2 Scan074 | |
| Secret memo from EFC to E. arranging a meeting in Abingdon to discuss dynamos and motors. | 26th Mar 1923 | Box 33 \ 2 Scan075 | |
| Telegram received by telephone from Chichester regarding a memo and a delayed meeting. | 25th Mar 1923 | Box 33 \ 2 Scan076 | |
| From 'R' to 'Hs' arranging a visit and the replacement of a Goshawk car body. | 24th May 1923 | Box 33 \ 2 Scan077 | |
| Letter proposing a visit to West Wittering, discussing a 50-hour test on a Condor engine and work on a Goshawk car. | 26th May 1923 | Box 33 \ 2 Scan078 | |
| Postponing a visit with Mr. Royce and suggesting alternative arrangements. | 28th May 1923 | Box 33 \ 2 Scan079 | |
| Post office telegram confirming a convenient time for a visit. | 16th Jun 1923 | Box 33 \ 2 Scan080 | |
| The readiness and specifications of car 4-Goshawk-11. | 11th Sep 1923 | Box 33 \ 2 Scan081 | |
| Short typed memo arranging to accompany someone on a visit. | 1st Sep 1923 | Box 33 \ 2 Scan082 | |
| Proposal for a meeting to discuss a research programme and sketches for a proposed aero engine. | 10th Oct 1923 | Box 33 \ 2 Scan083 | |
| Outlining plans for a visit to West Wittering with two 40/50 HP cars, one of which will be fitted with an EAC-1 engine. | 13th Dec 1923 | Box 33 \ 2 Scan084 | |
| Staff visits between W.W. and Derby. | 13th Dec 1924 | Box 33 \ 2 Scan085 | |
| Confirmation of a wire (telegram) about arranging a car delivery to West Wittering. | 2nd Jan 1925 | Box 33 \ 2 Scan086 | |
| Telegraph message requesting a car be sent for urgent work, instead of a visit. | 2nd Jun 1925 | Box 33 \ 2 Scan087 | |
| Brief typed memorandum from R. to HS. regarding rescheduling a visit to WW. | 14th May 1925 | Box 33 \ 2 Scan088 | |
| Secret memorandum arranging a test drive for the 'India' car fitted with 4-wheel brakes. | 5th May 1925 | Box 33 \ 2 Scan089 | |
| Proposing a visit to West Wittering to demonstrate experiments related to steering wobbles. | 1st Aug 1925 | Box 33 \ 2 Scan090 | |
| Wire confirmation from Royce to Hives regarding travel arrangements for an experimental car. | 2nd Sep 1925 | Box 33 \ 2 Scan091 | |
| Proposing a visit to West Wittering to deliver Eagle XVI parts. | 8th Dec 1925 | Box 33 \ 2 Scan092 | |
| Telegram about issues with an Eagle Sixteen engine and a Twenty car, recommending a visit to Derby. | 6th Feb 1926 | Box 33 \ 2 Scan093 | |
| From DA to HS regarding a proposed visit to Derby. | 12th Feb 1926 | Box 33 \ 2 Scan094 | |
| Short typed memo from R. arranging a visit for the following Thursday. | 24th Jun 1926 | Box 33 \ 2 Scan095 | |
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