| Description | Date | Identifier | |
| The standardization and production delay of sheet metal wing stays. | 6th May 1927 | Box 67 \ 1 scan0264 | |
| Letter from coachbuilders Barker & Co. regarding an untraceable offside front wing for car 10-EX. | 10th May 1927 | Box 67 \ 1 scan0265 | |
| Letter to Barkers coachbuilders regarding a wing originally fitted to chassis 10-EX. | 18th May 1927 | Box 67 \ 1 scan0266 | |
| Letter from coachbuilders Barker & Co. regarding a search for an original wing for chassis 10.EX. | 20th May 1927 | Box 67 \ 1 scan0267 | |
| Letter to Barker & Co. regarding the untraceable chassis 10-EX and an O.S. front wing. | 21th May 1927 | Box 67 \ 1 scan0268 | |
| Letter from Barker & Co. (Coachbuilders) Ltd. regarding their inability to find a missing wing for chassis 10.EX. | 26th May 1927 | Box 67 \ 1 scan0269 | |
| Differences in Phantom wing stay templates and drawings from coachbuilders Barker's and Hooper's. | 1st Jun 1927 | Box 67 \ 1 scan0270 | |
| Design solutions for the 'twenty' model, referencing coachbuilders Barker's and Hooper's specifications for stays and headlamp centres. | 13th Jul 1927 | Box 67 \ 1 scan0271 | |
| Urgent need to source pressed steel front wing stays for the Phantom chassis. | 13th Jul 1927 | Box 67 \ 1 scan0272 | |
| New weight-saving design for Phantom wing stays and head light fixings, recommending immediate production. | 9th Jul 1927 | Box 67 \ 1 scan0273 | |
| Standardization and production of pressed steel wing stays for the Phantom front wing. | 8th Sep 1927 | Box 67 \ 1 scan0274 | |
| Standardising pressed steel wing stays and lamp brackets for the Phantom F.2 series. | 18th Oct 1927 | Box 67 \ 1 scan0275 | |
| Supply and design of Phantom wing stays and addressing criticisms from coachbuilders. | 23th Oct 1928 | Box 67 \ 1 scan0276 | |
| Implementation of new Lucas dipping headlamps and pressed steel wing stays on the Phantom chassis. | 27th Oct 1927 | Box 67 \ 1 scan0277 | |
| Standardisation of sheet steel wing stays and the recommended positioning of headlamps. | 21th Nov 1927 | Box 67 \ 1 scan0278 | |
| Standardization of Phantom wing stays and the design of new headlamp brackets. | 16th Dec 1927 | Box 67 \ 1 scan0279 | |
| Design of undershields and valance stays for the 10-EX Sports Phantom car. | 19th Dec 1927 | Box 67 \ 1 scan0280 | |
| Manufacture of sports car wings, including the use of existing pressings and special design stays. | 30th Dec 1927 | Box 67 \ 1 scan0281 | |
| The production status of a sports chassis and the delivery of its corresponding body. | 2nd Jan 1928 | Box 67 \ 1 scan0282 | |
| The despatch of a dummy chassis to Barkers and a planned trip to London for parts delivery and vehicle examination. | 6th Jan 1928 | Box 67 \ 1 scan0283 | |
| Design of the front wing rear stay for a Sports Phantom. | 7th Jan 1928 | Box 67 \ 1 scan0284 | |
| Design proposals for a sports tool box and running board scheme. | 17th Jan 1928 | Box 67 \ 1 scan0285 | |
| Use of a horizontal stay on the Sports Phantom, explaining the decision over a more expensive taper tube. | 21th Jan 1928 | Box 67 \ 1 scan0286 | |
| Supply of wing stays and step irons for a Jarvis body and dummy chassis. | 9th Feb 1928 | Box 67 \ 1 scan0287 | |
| Request to fit a modified undershield on sports cars to prevent mud from impairing the servo and front brake mechanism. | 17th Mar 1928 | Box 67 \ 1 scan0288 | |
| Despatching parts to Jarvis, comparing the effectiveness of Barker and Hooper front wings. | 19th Mar 1928 | Box 67 \ 1 scan0289 | |
| Comparing the effectiveness of different experimental car wing designs, specifically concerning mud management. | 1st Oct 1928 | Box 67 \ 1 scan0290 | |
| The design of car wings to prevent mud accumulation, comparing satisfactory and unsatisfactory designs on experimental cars. | 1st Oct 1928 | Box 67 \ 1 scan0291 | |
| Blueprint comparing two designs, one labelled 'Effective Wing' and the other 'Ineffective Wing'. | 1st Oct 1928 | Box 67 \ 1 scan0292 | |
| Blueprint showing three cross-sections of a front wing for model 15 EX. | 1st Oct 1928 | Box 67 \ 1 scan0293 | |
| Blueprint of three cross-sections of a front wing for the 10 EX model. | 1st Oct 1928 | Box 67 \ 1 scan0294 | |
| The design and provision of front fenders and luggage carriers as a means of protection, particularly for American market cars. | 20th Aug 1919 | Box 67 \ 2 scan0001 | |
| Need to design a chassis-mounted luggage carrier for the 40/50 model. | 20th Aug 1919 | Box 67 \ 2 scan0002 | |
| The need for a standard design for luggage carriers that has been load-tested to avoid damaging the frame. | 15th Nov 1919 | Box 67 \ 2 scan0003 | |
| The urgent need to design and fit a luggage grid to the 10,000-mile car. | 18th Nov 1919 | Box 67 \ 2 scan0004 | |
| List of parts to be fitted to a chassis for a 10,000-mile run. | 19th Nov 1919 | Box 67 \ 2 scan0005 | |
| Proposed alterations for cars, concerning luggage carriers, body mounting, and rear spring shackles. | 2nd Dec 1919 | Box 67 \ 2 scan0006 | |
| List of new parts fitted to a car for a 10,000-mile run. | 22th Jan 1920 | Box 67 \ 2 scan0007 | |
| Broken back shock absorber on an experimental car in France due to fouling the luggage carrier. | 22th Jan 1920 | Box 67 \ 2 scan0008 | |
| Responding to complaints about a 10,000 miles test car's shock absorbers and tyre clearance. | 23th Jan 1920 | Box 67 \ 2 scan0009 | |
| Letter explaining a shock absorber lever failure and the status of replacement parts. | 28th Jan 1920 | Box 67 \ 2 scan0010 | |
| From T.H. Maddocks regarding instructions for a trip to Nice with car 2.EX for a comparative springing trial. | 22th May 1919 | Box 67 \ 2 scan0011 | |
| Design of a luggage carrier, comparing drop forging with pressed sheet metal construction. | 28th Jan 1920 | Box 67 \ 2 scan0012 | |
| Technical memorandum discussing the design of brackets, hinges, and a luggage grid for a vehicle body. | 28th Jan 1920 | Box 67 \ 2 scan0013 | |
| Design modifications for car bodies, petrol tanks, and associated fittings. | 28th Jan 1920 | Box 67 \ 2 scan0014 | |
| Fuel system modifications, specifically a new back tank and carburettor for American cars. | 28th Jan 1920 | Box 67 \ 2 scan0015 | |
| And commenting on proposed modifications for a trials car intended for the American market. | 1st Feb 1920 | Box 67 \ 2 scan0016 | |
| Issues with fitting rear shock absorbers, luggage grids, and the potential for coachbuilders to damage the chassis frame. | 26th Feb 1920 | Box 67 \ 2 scan0017 | |
| Shock absorbers and body makers' brackets for coachbuilders' drawings. | 27th Feb 1920 | Box 67 \ 2 scan0018 | |
| Proposal for shock absorber brackets and a luggage carrier, the design of which is delayed due to Mr. Royce's indecision and prioritisation of a motor boat project. | 1st Mar 1920 | Box 67 \ 2 scan0019 | |
| List of proposed additional items and modifications for a trials car destined for the American company. | 4th Mar 1920 | Box 67 \ 2 scan0020 | |
| Extract from a letter by T.H. Maddocks detailing a broken luggage grid hinge and poor engine running on magneto. | 9th Mar 1920 | Box 67 \ 2 scan0021 | |
| Design of a luggage carrier bracket to prevent dangerous modifications to the chassis by coachbuilders. | 19th Apr 1920 | Box 67 \ 2 scan0022 | |
| List of parts and modifications for a car destined for West Wittering. | 19th Apr 1920 | Box 67 \ 2 scan0023 | |
| Delay on car 6.EX, sent to replace 1.EX, with a list of new parts being fitted. | 28th May 1920 | Box 67 \ 2 scan0024 | |
| Car test delayed by a strike and the technical design of rear leaf springs. | 31th May 1920 | Box 67 \ 2 scan0025 | |
| Using alternative materials like sheet brass between plates to prevent seizure. | 31th May 1920 | Box 67 \ 2 scan0026 | |
| List of experimental parts fitted to chassis 6.EX. | 22th Jun 1920 | Box 67 \ 2 scan0027 | |
| Extract listing experimental parts fitted to the 6.EX car. | 28th Jun 1920 | Box 67 \ 2 scan0028 | |
| Series of remarks regarding the coil, petrol tank, wiring, luggage grid, and spare wheel carrier for car 6.EX. | 30th Jun 1920 | Box 67 \ 2 scan0029 | |
| List of parts fitted to experimental cars 4.EX and 6.EX. | 1st Jul 1920 | Box 67 \ 2 scan0030 | |
| Distributing standardisation sheets for experiments on springs, brackets, and axles. | 20th Aug 1920 | Box 67 \ 2 scan0031 | |
| Providing feedback on the design and location of a petrol gauge and luggage carrier fittings. | 23th Aug 1920 | Box 67 \ 2 scan0032 | |
| Standardisation sheets for rear road springs, a luggage grid bracket, and a lower gear back axle. | 2nd Sep 1920 | Box 67 \ 2 scan0033 | |
| Standardisation of a chassis part, specifically a bracket for carrying a luggage grid. | 20th Aug 1920 | Box 67 \ 2 scan0034 | |
| Recommendation to standardise the bracket for carrying a luggage grid. | 20th Aug 1920 | Box 67 \ 2 scan0035 | |
| Standardization of frame fittings for luggage carriers, referencing Mr. Royce's remarks. | 28th Sep 1920 | Box 67 \ 2 scan0036 | |
| Modifications and new parts fitted to an experimental car (4.EX) destined for testing in the U.S.A. | 4th Nov 1920 | Box 67 \ 2 scan0037 | |
| Failures of electrical systems, wiring, and luggage carriers from an American visit. | 11th Nov 1920 | Box 67 \ 2 scan0038 | |
| The standardization of the bracket for carrying the luggage grid. | 12th Nov 1920 | Box 67 \ 2 scan0039 | |
| Issues with the luggage grid and spare wheel carrier on Mr. Royce's 6.EX car. | 22th Nov 1920 | Box 67 \ 2 scan0040 | |
| Extract from a memo to Mr. Belnap regarding overdue drawings for a luggage carrier. | 8th Dec 1920 | Box 67 \ 2 scan0041 | |
| Inquiring about the requirement for a luggage grid fitting and its effect on the rear number plate brackets. | 7th Jan 1921 | Box 67 \ 2 scan0042 | |
| Recommending the fitting of a luggage grid to the 6.EX car to test other fittings. | 11th Feb 1921 | Box 67 \ 2 scan0043 | |
| Mr. Royce's request to fit a luggage grid to a car, and sourcing one similar to Lord Herbert's. | 15th Feb 1921 | Box 67 \ 2 scan0044 | |
| Internal memorandum regarding the fitting of a luggage grid on car 6.EX. | 17th Feb 1921 | Box 67 \ 2 scan0045 | |
| Recommending the use of a luggage carrier from American chassis on company cars, with a reference to an attached blueprint. | 17th Aug 1922 | Box 67 \ 2 scan0046 | |
| Standardisation of luggage grid brackets for the 40/50 chassis. | 31th May 1923 | Box 67 \ 2 scan0047 | |
| Standardisation of Luggage Grid Brackets for the 40/50 Chassis. | 31th Aug 1923 | Box 67 \ 2 scan0048 | |
| Standardisation sheet discussing an agreed modification to a bracket for a luggage grid to include a shock absorber attachment. | 12th Sep 1923 | Box 67 \ 2 scan0049 | |
| Standardisation of a bracket fixed to the frame to carry a luggage grid. | 5th Sep 1923 | Box 67 \ 2 scan0050 | |
| Modifications to the petrol tank and fuel feed system for cars with 4-wheel brakes. | 27th Jun 1924 | Box 67 \ 2 scan0051 | |
| Secret memo discussing design modifications for the luggage grid, petrol tank, and chassis frame for the EAC.3 model. | 8th Jul 1924 | Box 67 \ 2 scan0052 | |
| Positioning of the protective rail on a luggage grid. | 21th Aug 1925 | Box 67 \ 2 scan0053 | |
| Sketch showing the relative position of the body and luggage grid on an 8 EX car chassis with a Barker Saloon body. | 21th Aug 1926 | Box 67 \ 2 scan0054 | |
| Clarifying the position of a luggage grid and body guard relative to short and long body positions on a chassis. | 26th Aug 1925 | Box 67 \ 2 scan0055 | |
| Alteration of a check rail position to accommodate a trunk. | 1st Sep 1925 | Box 67 \ 2 scan0056 | |
| Sketch showing the relative position of a body and luggage grid on an 8 EX car chassis with a Barker Saloon Body. | 21th Aug 1923 | Box 67 \ 2 scan0057 | |
| Requesting a copy of a report on a broken luggage grid and Houdaille shock absorbers. | 23th Nov 1925 | Box 67 \ 2 scan0058 | |
| Responding to a request by attaching a copy of a previous communication. | 26th Nov 1925 | Box 67 \ 2 scan0059 | |
| 10,000-mile test car in France, discussing tyre pressures and a luggage grid failure. | 12th Jun 1925 | Box 67 \ 2 scan0060 | |
| Failure of a luggage carrier during a 10,000-mile trial and a proposed improved design. | 21th Dec 1925 | Box 67 \ 2 scan0061 | |
| Proposing design improvements for step irons, wing stays, a spare wheel carrier, and a luggage grid. | 19th Feb 1926 | Box 67 \ 2 scan0062 | |
| Extract from a sales conference minute discussing suggestions for side members with an extension for a luggage grid on the 'New Phantom' model. | 24th Feb 1926 | Box 67 \ 2 scan0063 | |
| Standardisation and testing process for the 40/50 luggage carrier. | 27th Feb 1926 | Box 67 \ 2 scan0064 | |
| Side members with an extension for a luggage grid on the New Phantom model. | 24th Feb 1926 | Box 67 \ 2 scan0065 | |
| The standardization of a reinforced luggage carrier for the 40/50 HP model, including reference to a blueprint. | 8th Mar 1926 | Box 67 \ 2 scan0066 | |
| The standardization of the luggage grid for the Phantom and the essential need to add guides for straps. | 14th May 1926 | Box 67 \ 2 scan0067 | |
| Standardisation of a chassis luggage grid to improve the design and protect the petrol tank. | 30th Apr 1926 | Box 67 \ 2 scan0068 | |
| Sending a schedule for luggage strap guides for the Phantom luggage carrier. | 22th May 1926 | Box 67 \ 2 scan0069 | |
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