| Description | Date | Identifier | |
| Adapting an oil pump relief valve for the Goshawk 11 engine to reduce noise. | 23th Sep 1921 | Box 77 \ 1 scan0167 | |
| Two design options for the Goshawk II oil pump casing. | 26th Oct 1921 | Box 77 \ 1 scan0168 | |
| Modifications to the Goshawk 11 oil pump drive lubrication system. | 11th Nov 1921 | Box 77 \ 1 scan0169 | |
| Redesigns for the Goshawk 11 Dynamo Drive, oil pump, and solutions for various oil leaks as per Mr. Royce's instructions. | 14th Dec 1921 | Box 77 \ 1 scan0170 | |
| Issues with brakes, water loss, oil filtration, and over-oiling on the Goshawk 11 chassis. | 12th Jan 1922 | Box 77 \ 1 scan0171 | |
| Experiments with clutch materials, comparing Ferodo bonded asbestos with the original Ferobestos. | 12th Jan 1922 | Box 77 \ 1 scan0172 | |
| Investigation into engine gear rattles on the Goshawk 11, identifying the camshaft as the cause and proposing improved oiling as a solution. | 1st Sep 1922 | Box 77 \ 1 scan0173 | |
| Concerning a customer's report on the difficulty of accessing an oil pump. | 26th Sep 1923 | Box 77 \ 1 scan0174 | |
| Despatch of an oil pump from a 20 HP car for bearing wear examination after a 10,000-mile test. | 8th Nov 1923 | Box 77 \ 1 scan0175 | |
| The despatch of a 20 HP oil pump to Mr. Royce. | 8th Nov 1923 | Box 77 \ 1 scan0176 | |
| Damage to a Goshawk oil pump and proposing design and material improvements. | 12th Nov 1923 | Box 77 \ 1 scan0177 | |
| Wear on a Goshawk oil pump, attributing it to emery in the oil and proposing design modifications. | 12th Nov 1923 | Box 77 \ 1 scan0178 | |
| Wear on Goshawk oil pump gears for the 20HP chassis and proposed experiments. | 22th Nov 1923 | Box 77 \ 1 scan0179 | |
| New lubrication scheme for the 20 HP chassis oil pump. | 21th May 1924 | Box 77 \ 1 scan0180 | |
| Letter from W.B. Dick & Co. Limited regarding the analysis and supply of superior, but expensive, aeroplane engine oils. | 7th Sep 1917 | Box 77 \ 2 scan0001 | |
| Letter from W.B. Dick & Company regarding samples of aeroplane oil sent for testing on a 250 HP Engine. | 7th Sep 1917 | Box 77 \ 2 scan0002 | |
| Analysis of light and heavy aeroplane engine oils, detailing their physical properties. | 7th Sep 1917 | Box 77 \ 2 scan0003 | |
| Letter from an oil supplier clarifying the composition of an oil sample, distinguishing it from 'Castrol' and confirming it contains no castor oil. | 13th Sep 1917 | Box 77 \ 2 scan0004 | |
| The testing of two types of aeroplane engine oil in an Eagle engine. | 17th Sep 1917 | Box 77 \ 2 scan0005 | |
| Letter from an oil supplier regarding a sample of Aeroplane Engine Oils sent for testing. | 3rd Oct 1917 | Box 77 \ 2 scan0006 | |
| Letter to W.B. Dick & Co., Ltd. regarding a delay in testing two drums of oil. | 5th Oct 1917 | Box 77 \ 2 scan0007 | |
| Letter from an oil supplier regarding samples of Light and Heavy Aeroplane oil sent for testing. | 15th Nov 1917 | Box 77 \ 2 scan0008 | |
| Closing section of a letter from W. B. Dick & Company, Limited's General Lubricating Department. | 15th Feb 1922 | Box 77 \ 2 scan0009 | |
| Letter from W.B. Dick & Company arranging a visit to discuss Aeroplane Engine Oil. | 1st Mar 1918 | Box 77 \ 2 scan0010 | |
| Letter from an oil refiner regarding upcoming 100-hour trials of their Aeroplane Engine Oil. | 6th Mar 1918 | Box 77 \ 2 scan0011 | |
| Letter from W.B. Dick & Company, Limited offering to send barrels for testing. | 23th Apr 1918 | Box 77 \ 2 scan0012 | |
| Letter from W. B. Dick & Co. Ltd. to arrange a meeting to discuss the lubrication of Aero Engines. | 23th Apr 1918 | Box 77 \ 2 scan0013 | |
| Engine oil properties, lubrication, and the benefits of adding fatty oil to mineral oil for aeroplane engines. | 23th Apr 1918 | Box 77 \ 2 scan0014 | |
| Letter discussing the benefits of a specific mineral oil for engine lubrication. | 24th Apr 1918 | Box 77 \ 2 scan0015 | |
| Letter confirming an agreement to send two barrels of I.L.O. S.L.P. oil for engine tests. | 24th Apr 1918 | Box 77 \ 2 scan0016 | |
| Letter from W. B. Dick & Company Ltd regarding the dispatch of two barrels of oil for testing. | 26th Apr 1918 | Box 77 \ 2 scan0017 | |
| Letter from W. B. Dick & Company Ltd following up on the progress of an oil test. | 15th May 1918 | Box 77 \ 2 scan0018 | |
| Letter to W.B. Dick & Co. Ltd. regarding the commencement of oil tests. | 17th May 1918 | Box 77 \ 2 scan0019 | |
| Letter regarding the commencement of oil tests and a request to be present for the completion. | 22th May 1918 | Box 77 \ 2 scan0020 | |
| Letter to W.B. Dick Ltd. updating on the satisfactory progress of tests on S.L.P. Oil. | 6th Jun 1918 | Box 77 \ 2 scan0021 | |
| Letter from W. B. Dick & Company regarding the satisfactory performance of L.S.P. oil and upcoming test results. | 7th Jun 1918 | Box 77 \ 2 scan0022 | |
| Letter from an oil supplier regarding test results and the setting point of an Aeroplane Oil. | 6th Aug 1918 | Box 77 \ 2 scan0023 | |
| Letter from W. B. Dick & Company regarding the search for a replacement for Castor Oil. | 27th Aug 1918 | Box 77 \ 2 scan0024 | |
| Letter to Mr. Hives arranging travel from London to Derby for a meeting. | 27th Aug 1918 | Box 77 \ 2 scan0025 | |
| Report and laboratory tests on Dick's S.L.P. Oil submitted by W.B. Dick & Co. | 28th Aug 1918 | Box 77 \ 2 scan0026 | |
| Power and endurance test results for Falcon and Eagle engines comparing S.L.P. and Castrol oils. | 28th Aug 1918 | Box 77 \ 2 scan0027 | |
| Letter from an oil supplier discussing a modified formulation for Aero Oil to prevent carbonisation and gumming of rings. | 31th Aug 1918 | Box 77 \ 2 scan0028 | |
| Letter from W. B. Dick & Company Limited regarding the superior lubricating properties of an extra fatty oil compared to Castrol. | 29th Aug 1918 | Box 77 \ 2 scan0029 | |
| Supply of 3 barrels of S.L.P. I.L.O. aero oil for the Experimental Department. | 29th Aug 1918 | Box 77 \ 2 scan0030 | |
| Letter advising of the completion of a satisfactory final report on Ilo H.S. Aeroplane Oil trials against Pharmaceutical Castor oil. | 22th Oct 1918 | Box 77 \ 2 scan0031 | |
| Letter requesting passes for engine tests at Felixstowe and reports on various aero engines and oils. | 31th Oct 1918 | Box 77 \ 2 scan0032 | |
| Letter from W.B. Dick & Co. regarding an Air Ministry report on their Ilo H.S. Aeroplane Oil and requesting an opinion. | 7th Nov 1918 | Box 77 \ 2 scan0033 | |
| Letter from the Ministry of Munitions of War enclosing four booklets and a report on Salmson engines. | 12th Nov 1918 | Box 77 \ 2 scan0034 | |
| Dicks' Lubricating Oils, discussing specific types for Aero and car engines and requesting samples for testing. | 31th Dec 1918 | Box 77 \ 2 scan0035 | |
| Arranging for the testing of a barrel of specially prepared Aero engine oil from W.B. Dick & Co Ltd. | 31th Dec 1918 | Box 77 \ 2 scan0036 | |
| Testing of a new barrel of motor car engine oil from W.B. Dick & Co. Ltd. | 31th Dec 1918 | Box 77 \ 2 scan0037 | |
| Test report on Dicks 'Ilo.H.S.' oil in a Viper engine on an S.E.5a aircraft. | 9th Oct 1918 | Box 77 \ 2 scan0038 | |
| Engine test results log for an 80-minute duration test, detailing temperatures, oil pressure, and RPM. | 9th Oct 1918 | Box 77 \ 2 scan0039 | |
| Requesting a report on the performance of motor car engine oil supplied by W.D. Dick & Co. | 28th Feb 1919 | Box 77 \ 2 scan0040 | |
| Letter from W. B. Dick & Co. Ltd. to E. Hives regarding the testing of motor oil and aero oil. | 28th Feb 1919 | Box 77 \ 2 scan0041 | |
| Letter from W.B. Dick & Co. Ltd. proposing a specific engine lubricant containing 25% Lard Oil for testing. | 23th Sep 1919 | Box 77 \ 2 scan0042 | |
| Letter from W. B. Dick & Company regarding the trial of their engine and gear oils. | 23th Sep 1919 | Box 77 \ 2 scan0043 | |
| Specifications for 'ILO' RR Motor Oil and 'ILO' S.H. Gear Oil. | 25th Sep 1919 | Box 77 \ 2 scan0044 | |
| Comparing a lubricating oil from W.B. Dick & Co. with Castrol and Prices' oils based on price and composition. | 25th Sep 1919 | Box 77 \ 2 scan0045 | |
| Letter from W.B. Dick & Co Ltd recommending a specific engine lubricant blend for evaluation. | 23th Sep 1919 | Box 77 \ 2 scan0046 | |
| Letter from W.B. Dick & Co. Ltd. proposing a trial of their gear oil. | 23th Sep 1919 | Box 77 \ 2 scan0047 | |
| Specifications for 'ILO' R.R. Motor Oil and 'ILO' S.H. Gear Oil. | 1st May 1919 | Box 77 \ 2 scan0048 | |
| Laboratory tests of Prices' Motorine 'C' & Gas Engine Oil, with a comparison to Castrol and Vacuum oils. | 1st May 1919 | Box 77 \ 2 scan0049 | |
| Conclusion of an oil analysis, finding certain oils unsuitable substitutes for Castrol R in aero engines. | 26th Sep 1919 | Box 77 \ 2 scan0050 | |
| Letter from an oil supplier confirming the dispatch of motor and gear oil for testing. | 26th Sep 1919 | Box 77 \ 2 scan0051 | |
| Offer for engine lubricating oil, addressing concerns about customer availability and the use of lard oil. | 29th Sep 1919 | Box 77 \ 2 scan0052 | |
| Engine oil recommendations, comparing brands and types for performance and engine wear. | 29th Sep 1919 | Box 77 \ 2 scan0053 | |
| Letter from an oil supplier regarding product distribution arrangements and sending personal well wishes. | 5th Dec 1919 | Box 77 \ 2 scan0054 | |
| Letter from W.B. Dick & Company Ltd. regarding a trial of their motor oil and a request to specify it for the R.R. Car. | 30th Mar 1920 | Box 77 \ 2 scan0055 | |
| Letter from W.B. Dick & Company Ltd. to Mr. Hives regarding tests on Ilo R.R. Motor Oil. | 6th Jul 1920 | Box 77 \ 2 scan0056 | |
| The satisfactory testing of Dick's Oil for use in engines. | 25th Jun 1920 | Box 77 \ 2 scan0057 | |
| Requesting a sample of Glandoline grease to evaluate its effectiveness in Condor engine pump glands. | 5th May 1921 | Box 77 \ 2 scan0058 | |
| Letter to Messrs. Sterns Ltd. requesting a sample and price for 'Glandoline' Grease. | 10th May 1921 | Box 77 \ 2 scan0059 | |
| Letter from Sterns Ltd. offering discounts on their 'Glandoline' petroleum product. | 11th May 1921 | Box 77 \ 2 scan0060 | |
| Letter to Sterns Limited requesting a sample of 'Clandoline' lubricant for testing. | 13th May 1921 | Box 77 \ 2 scan0061 | |
| Letter from Sterns Ltd. about forwarding a 4 oz. inspection sample of Glandoline Lubricant. | 14th May 1921 | Box 77 \ 2 scan0062 | |
| Informational leaflet for Glandoline packing lubricant, including usage instructions and steam data. | 14th May 1921 | Box 77 \ 2 scan0063 | |
| Advertisement leaflet for 'Glandoline', an acidless paste lubricant. | 18th May 1921 | Box 77 \ 2 scan0064 | |
| Internal order office note regarding a sample of 'Glandoline' sent to the Order Office. | 18th May 1921 | Box 77 \ 2 scan0065 | |
| Follow-up letter from Sterns Ltd. regarding an offer for a product named Glandoline. | 23th May 1921 | Box 77 \ 2 scan0066 | |
| Proposal from Sterns Ltd. to supply lubricants for a chassis being overhauled. | 12th Dec 1923 | Box 77 \ 2 scan0067 | |
| Letter from Sterns Limited promoting their STERNOL RR and AMBROLEUM lubricants for Rolls-Royce cars. | 6th Dec 1923 | Box 77 \ 2 scan0068 | |
| The consideration of changing oil suppliers and testing Sterns Ltd. oil for potential inclusion as an alternative. | 20th Dec 1923 | Box 77 \ 2 scan0069 | |
| Concerning a draft letter and lubricant testing with Sterns Limited. | 18th Dec 1923 | Box 77 \ 2 scan0070 | |
| Letter declining a lubricant supplier's proposal due to existing standardized arrangements after extensive testing. | 18th Dec 1923 | Box 77 \ 2 scan0071 | |
| Letter from Sterns Ltd. acknowledging receipt of communication from the Experimental Dept. | 23th Jun 1926 | Box 77 \ 2 scan0072 | |
| Letter from Sterns Ltd. detailing the cold test results of Sternol WW oils and their global availability. | 5th Jul 1926 | Box 77 \ 2 scan0073 | |
| Page 2 of a letter from petroleum products refiner, Sterns Ltd. | 14th Jul 1926 | Box 77 \ 2 scan0074 | |
| Letter to Sterns Ltd. regarding oil recommendations and requesting a list of stockists on the Riviera. | 14th Jul 1926 | Box 77 \ 2 scan0075 | |
| Letter from Sterns Ltd. apologising for a delay in replying about stockists on the Riviera. | 23th Jul 1926 | Box 77 \ 2 scan0076 | |
| Drawing for a 'Goshawk II' oil level indicator. | 14th Mar 1921 | Box 77 \ 2 scan0077 | |
| Modifications to the Goshawk II engine's oil piping and oil pump relief valve. | 24th Mar 1921 | Box 77 \ 2 scan0078 | |
| Sketch and notes regarding camshaft lubrication, banjo connection, and oil pipe to rockers. | 24th Mar 1921 | Box 77 \ 2 scan0079 | |
| Blueprints for the Oil Piping and Oil Pipe Relief Valve for the Goshawk 11. | 30th Mar 1921 | Box 77 \ 2 scan0080 | |
| Design note about moving the rear axle oil filler to a more accessible external location on the 20 HP model. | 1st Oct 1921 | Box 77 \ 2 scan0081 | |
| Over-oiling on the Goshawk 11 engine, detailing drawing updates for an improved baffle and a lengthened piston skirt. | 10th Nov 1921 | Box 77 \ 2 scan0082 | |
| The overload specifications for the Goshawk 11 instrument board oil gauge. | 21th Mar 1922 | Box 77 \ 2 scan0083 | |
| Further development for the 40/50 oil level indicator. | 19th Jul 1923 | Box 77 \ 2 scan0084 | |
| Instruction regarding a spring on the foot brake pedal for double rear brakes, with handwritten notes clarifying the situation. | 15th Oct 1913 | Box 77 \ 2 scan0085 | |
| Copy of meeting minutes discussing pedal clearance issues with a heavier flywheel and proposed solutions. | 12th Jan 1912 | Box 77 \ 2 scan0086 | |
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