| Description | Date | Identifier | |
| Instruction to Messrs. Sandenson & Holmes Ltd. to carry out work on a car as per an attached estimate. | 5th May 1924 | Box 41 \ 3 Scan408 | |
| Excessive chassis frame deflection on a 20 HP Landaulet, proposing the fitting of tie-bars. | 8th May 1924 | Box 41 \ 3 Scan409 | |
| The condition of a Beatonson All-Weather body on a 5-Goshawk-11 chassis after road trials. | 19th May 1924 | Box 41 \ 3 Scan410 | |
| The preparation and fitting of a set of tie bars for a 20 HP Landaulet special body frame. | 19th May 1924 | Box 41 \ 3 Scan411 | |
| Instruction to Messrs. Sanderson & Holmes to carry out work on a car as per an attached estimate. | 23th May 1924 | Box 41 \ 3 Scan412 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. regarding work to be carried out on the 4-Goshawk-11 car. | 27th May 1924 | Box 41 \ 3 Scan413 | |
| Instructing for work to be carried out on car 6-G-11 by Messrs. Sanderson & Holmes. | 25th Jun 1924 | Box 41 \ 3 Scan414 | |
| Cover memo to Mr. Evans concerning the experimental landaulet, reference GF-68. | 3rd Jul 1924 | Box 41 \ 3 Scan415 | |
| Proposal to take the Experimental Landaulet, chassis GF-68, for a short run to check the coachwork. | 2nd Jul 1924 | Box 41 \ 3 Scan416 | |
| Modification to the Goshawk 11 carburetter controls and its application to a 20 HP landaulette. | 7th Jul 1924 | Box 41 \ 3 Scan417 | |
| On the test drive of a 20 HP Landaulet GF-68, noting improvements in body quietness but requiring further work on under-frame suspension. | 10th Jul 1924 | Box 41 \ 3 Scan418 | |
| Test drive of a 20 HP Landaulet (GF.68) with underframe body suspension, comparing its quietness and vibration isolation. | 14th Jul 1924 | Box 41 \ 3 Scan419 | |
| Demonstration of a 20 HP Landaulet to Mr. Royce following modifications. | 14th Jul 1924 | Box 41 \ 3 Scan420 | |
| Two designs for an open Sports Touring Car, a boat body and a phaeton. | 1st Aug 1924 | Box 41 \ 3 Scan421 | |
| The test results of an experimental landaulet, noting its quiet ride and issues with rattling components. | 8th Sep 1924 | Box 41 \ 3 Scan422 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. to carry out work on car GOSHAWK - 1.G-1. | 11th Aug 1924 | Box 41 \ 3 Scan423 | |
| Internal instruction to Messrs. Sanderson & Holmes Ltd. to carry out work on car 1-G-1. | 11th Aug 1924 | Box 41 \ 3 Scan424 | |
| Authorising Messrs. Sanderson & Holmes Ltd. to carry out work on car 3-GOSHAWK-11. | 14th Aug 1924 | Box 41 \ 3 Scan425 | |
| Note concerning the purchase of a Beaton & Son body to replace the one fitted to chassis 5-G-11. | 29th Aug 1924 | Box 41 \ 3 Scan426 | |
| Issues with bodies for experimental cars and proposing new procurement and design methods. | 29th Aug 1924 | Box 41 \ 3 Scan427 | |
| Internal instruction to arrange work on car 7-G-11 with Messrs. Sanderson & Holmes Ltd. | 1st Sep 1924 | Box 41 \ 3 Scan428 | |
| Suitability of the Bradburne & Wedge flexible body suspension system, suggesting it is unsuitable for open-top vehicles. | 9th Sep 1924 | Box 41 \ 3 Scan429 | |
| Complaint of slow motion sway in a 20 HP Landaulet (GF.68), suggesting potential causes and fixes. | 9th Sep 1924 | Box 41 \ 3 Scan430 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. to carry out work on a car as per an attached estimate. | 19th Sep 1924 | Box 41 \ 3 Scan431 | |
| Internal instruction to authorise work on a 20 HP car, chassis FG.68, by Sanderson & Holmes Ltd. | 24th Oct 1924 | Box 41 \ 3 Scan432 | |
| Vibrations and body booming issues on the 40/50 HP and 20 HP car models. | 7th Oct 1924 | Box 41 \ 3 Scan433 | |
| Fitting a sub-frame to a 20 HP car to reduce body and axle noise. | 18th Oct 1924 | Box 41 \ 3 Scan434 | |
| Repairs for Mr. Royce's Beaton all-weather car and a new cabriolet body for a 40/50 chassis. | 18th Nov 1924 | Box 41 \ 3 Scan435 | |
| Arrangements to prepare Mr. Royce's car, including work by coachbuilders, for delivery to the South of France. | 19th Nov 1924 | Box 41 \ 3 Scan436 | |
| Letter to coachbuilders James Young & Sons Ltd. arranging an urgent overhaul of Mr. Royce's 20.HP car. | 22th Nov 1924 | Box 41 \ 3 Scan437 | |
| Letter to coachbuilders James Young & Co. Ltd. detailing issues found during a final examination of a Beaton All Weather car. | 25th Nov 1924 | Box 41 \ 3 Scan438 | |
| Completion of varnish work on Mr. Royce's car at Messrs. Young & Co. | 5th Dec 1924 | Box 41 \ 3 Scan439 | |
| Internal instruction memo to authorise work on car 4-G-11 by Messrs. Sanderson & Holmes Ltd. | 5th Dec 1924 | Box 41 \ 3 Scan440 | |
| Sub-frame tests for a Barker Landaulet body on a 20 HP chassis. | 17th Dec 1924 | Box 41 \ 3 Scan441 | |
| Alterations to a body sub-frame on a 20 HP car to reduce noise. | 15th Dec 1924 | Box 41 \ 3 Scan442 | |
| Sub-frame performance, detailing how road surface imperfections cause frame deflection and dash movement. | 15th Dec 1924 | Box 41 \ 3 Scan443 | |
| Dash semi-isolation scheme to reduce noise and movement between the dash and scuttle frame. | 15th Dec 1924 | Box 41 \ 3 Scan444 | |
| Instructing Messrs. Sanderson & Holmes Ltd. to carry out work on a car. | 18th Dec 1924 | Box 41 \ 3 Scan445 | |
| Instruction to Messrs. Sanderson & Holmes Ltd. to carry out work on car GF.68 as per an attached estimate. | 1st Jan 1925 | Box 41 \ 3 Scan446 | |
| Proposal to create a temporary wooden gauge seat to standardize seating position measurements for coachbuilders. | 1st Jan 1925 | Box 41 \ 3 Scan447 | |
| Fault with the Goshawk body subframe due to the positioning of the front supports. | 10th Jan 1925 | Box 41 \ 3 Scan448 | |
| Questioning the unsatisfactory stiffness of the 20 HP frame with certain body types. | 13th Jan 1925 | Box 41 \ 3 Scan449 | |
| Offer for two new open bodies by Windovers for a 20-HP experimental chassis. | 1st Mar 1925 | Box 41 \ 3 Scan450 | |
| Request for two trimmed and painted bodies for a 20 HP experimental chassis to be sent to Derby. | 6th Mar 1925 | Box 41 \ 3 Scan451 | |
| Confirming that coachbuilder Windovers has been instructed to prepare and dispatch bodies for a 20 HP chassis. | 5th Mar 1925 | Box 41 \ 3 Scan452 | |
| Letter from motor body builders Windovers Ltd. requesting two sets of wing stays for Open Touring Bodies being fitted to a 20 HP 'raked' steering chassis. | 16th Mar 1925 | Box 41 \ 3 Scan453 | |
| Telegram requesting the immediate dispatch of two sets of front wing stays. | 17th Mar 1925 | Box 41 \ 3 Scan454 | |
| Confirming a telegram and requesting the prompt despatch of front wing stays to the coachbuilder Windover's for two 20 HP experimental chassis bodies. | 17th Mar 1925 | Box 41 \ 3 Scan455 | |
| Telegram confirmation for a parts request for two front wing stays for a Windovers open-bodied car. | 17th Mar 1925 | Box 41 \ 3 Scan456 | |
| Confirming the despatch of parts for two open bodies on a 20 HP experimental chassis. | 18th Mar 1925 | Box 41 \ 3 Scan457 | |
| Instructing work to be carried out on chassis GF.68 by Messrs. Sanderson & Holmes Ltd. | 30th Mar 1925 | Box 41 \ 3 Scan458 | |
| Confirming the dispatch of two Open Bodies for a 20 HP chassis from Windover's. | 3rd Apr 1925 | Box 41 \ 3 Scan459 | |
| Internal order instructing Messrs. Sanderson & Holmes Ltd. to carry out work as per an attached estimate. | 16th Apr 1925 | Box 41 \ 3 Scan460 | |
| Confirming the responsibility for experimental work and the standardisation of coachwork features. | 16th Apr 1925 | Box 41 \ 3 Scan461 | |
| Frequent fault with car bodies, specifically that the back seats are made too high. | 13th May 1925 | Box 41 \ 3 Scan462 | |
| Instruction memo to authorise Messrs. Sanderson & Holmes Ltd. to carry out work on a car as per an attached estimate. | 21th May 1925 | Box 41 \ 3 Scan463 | |
| Ordering of a test cabriolet body for a 20 HP vehicle. | 25th Jun 1925 | Box 41 \ 3 Scan464 | |
| Acquisition of a car body that reproduces sound for the Experimental Department. | 24th Jun 1925 | Box 41 \ 3 Scan465 | |
| Testing of a cabriolet body for the 20 HP model, focusing on subframe strength. | 30th Jun 1925 | Box 41 \ 3 Scan466 | |
| Confirming the order of an Enclosed Drive Cabriolet body from Barker's for experimental work on the 20 HP Sub-Frame. | 1st Jul 1925 | Box 41 \ 3 Scan467 | |
| Instruction memo for Sanderson & Holmes Ltd. to perform work on a car as per an attached estimate. | 17th Aug 1925 | Box 41 \ 3 Scan468 | |
| Instruction to arrange for work on a car by Messrs. Sanderson & Holmes Ltd. | 1st Aug 1925 | Box 41 \ 3 Scan469 | |
| Complaining that a Maythorn limousine body is too heavy for the 20 HP car, calling it a disgrace. | 1st Sep 1925 | Box 41 \ 3 Scan470 | |
| High mileage, durability, and proposed disposal of the Maythorne Saloon body on experimental car 7-G-11. | 1st Sep 1925 | Box 41 \ 3 Scan471 | |
| Proposing a car body (7-G-11) be used for internal works testing because it annoys Mr. Royce. | 8th Sep 1925 | Box 41 \ 3 Scan472 | |
| Instruction memo for Sanderson & Holmes Ltd. to carry out work on a chassis. | 8th Sep 1925 | Box 41 \ 3 Scan473 | |
| Internal instruction to arrange for work on a chassis by Messrs. Sanderson & Holmes Ltd. | 28th Sep 1925 | Box 41 \ 3 Scan474 | |
| Instruction to carry out work on car GF-68 by Messrs. Sanderson & Holmes Ltd. based on an attached estimate. | 17th Nov 1925 | Box 41 \ 3 Scan475 | |
| Confirming no use can be found for test purposes for the Open Touring body on chassis 6-G-II. | 5th Mar 1926 | Box 41 \ 3 Scan476 | |
| Scheme for developing silent pistons using oil pressure and springs. | 17th Oct 1919 | Box 41 \ 4 Scan001 | |
| Split piston design, its advantages, and arrangements for patenting related schemes. | 17th Oct 1919 | Box 41 \ 4 Scan002 | |
| Request to make a model piston with an incorporated silent ram and three rings, based on a report by Mr. Hives. | 3rd Dec 1919 | Box 41 \ 4 Scan003 | |
| Confirmation of a telegram discussing a preference for a specific piston design. | 5th Dec 1919 | Box 41 \ 4 Scan004 | |
| Plunger piston design, focusing on oiling, piston rings, and a proposed sylphon tube fitting. | 1st Dec 1919 | Box 41 \ 4 Scan005 | |
| Extract discussing the supply and fitting of an improved type of three-ring ram piston for a 10,000-mile car run. | 9th Dec 1919 | Box 41 \ 4 Scan006 | |
| The testing of a simplified silent ram piston design. | 29th Dec 1919 | Box 41 \ 4 Scan007 | |
| Reverse hand controls for the American model. | 27th Sep 1919 | Box 41 \ 4 Scan008 | |
| Decision to continue manufacturing standard right-hand drive chassis for America and to halt work on the proposed left-hand drive version. | 31th Oct 1919 | Box 41 \ 4 Scan009 | |
| Outlining design changes for a left-hand drive car, specifically the pedal gear and controls. | 1st Sep 1920 | Box 41 \ 4 Scan010 | |
| Letter discussing developments in aero-engine compression ignition and boost control. | 27th Jan 1930 | Box 41 \ 4 Scan011 | |
| Fuel injection timing, pump leakage, and boost control for engine development. | 27th Jan 1930 | Box 41 \ 4 Scan012 | |
| Engine testing, automatic throttle control, detonation prevention, and the Stanton device, page 3. | 9th Feb 1929 | Box 41 \ 4 Scan013 | |
| Letter to F.H. Royce regarding Stanton's patents for engine spark and carburation control. | 9th Feb 1929 | Box 41 \ 4 Scan014 | |
| The operation of ignition timing, supercharge, and carburation control systems in an engine. | 9th Feb 1929 | Box 41 \ 4 Scan015 | |
| Engine performance devices, including a visible spark advance indicator and power charts. | 28th Jan 1930 | Box 41 \ 4 Scan016 | |
| Drawing showing the design and principles of a spark advance and carburettor control system. | 28th Jan 1930 | Box 41 \ 4 Scan017 | |
| Schematic diagram of a Stanton Boost Control system. | 27th Jan 1930 | Box 41 \ 4 Scan018 | |
| Letter from the Springfield, Mass. office to Derby, England regarding a Stanton Ignition Control device. | 28th Jan 1930 | Box 41 \ 4 Scan019 | |
| Description of the operation of an engine control mechanism, detailing the function of plungers, air-cushions, and ignition timing. | 28th Jan 1930 | Box 41 \ 4 Scan020 | |
| Optimizing engine ignition timing, including advance and retard mechanisms under various throttle and compression conditions. | 28th Jan 1930 | Box 41 \ 4 Scan021 | |
| Technical discussion on automatic ignition and carburation control systems, including the Stanton system and competitors. | 28th Jan 1930 | Box 41 \ 4 Scan022 | |
| Simplification of engine controls and the potential of the Stanton automatic control system for cars and aeroplanes. | 29th Jan 1930 | Box 41 \ 4 Scan023 | |
| Letter discussing the scope and variations of Stanton control devices as detailed in a French patent. | 29th Jan 1930 | Box 41 \ 4 Scan024 | |
| Various engine control methods, including sampling, ignition, boost, and carburation. | 29th Jan 1930 | Box 41 \ 4 Scan025 | |
| Equation for engine carburation control and its application to cold starting and acceleration. | 29th Jan 1930 | Box 41 \ 4 Scan026 | |
| Various engine control mechanisms, including carburation, ignition, and shutters. | 12th Jul 1930 | Box 41 \ 4 Scan027 | |
| Letter from Warren F. Stanton requesting an update on the status of the Stanton automatic engine control. | 12th Jul 1930 | Box 41 \ 4 Scan028 | |
| The benefits of automatic spark advance and choke controls for automobile and aircraft engines. | 12th Jul 1930 | Box 41 \ 4 Scan029 | |
| Typed page outlining the principles of modern high-speed Diesel engines and the need for automatic fuel injection timing. | 30th Aug 1930 | Box 41 \ 4 Scan030 | |
| Letter to Mr. Olley regarding Mr. Stanton's automatic engine controls and a planned visit to America. | 30th Aug 1930 | Box 41 \ 4 Scan031 | |
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