| Description | Date | Identifier | |
| Continued technical evaluation of a vehicle's springing, carburation, and chassis. | 27th Dec 1922 | Morton \ M21 img004 | |
| Engine suspension differences between the Goshawk, Goshawk 1, and Goshawk 11 chassis. | 27th Dec 1922 | Morton \ M21 img005 | |
| Query regarding payment for petrol and a damaged tyre tube on the Hawk-Northcliffe chassis. | 16th Dec 1922 | Morton \ M21 img006 | |
| Design improvements to prevent warping in the 'Goshawk II' clutch plate. | 9th Jul 1921 | Morton \ M21 img007 | |
| Halting experimental work on 'Vulture' or 'Buzzard' engines and prioritizing other useful parts. | 1st Apr 1921 | Morton \ M21 img008 | |
| With diagrams illustrating six different designs for clutch plates or friction surfaces. | 8th Sep 1921 | Morton \ M21 img009 | |
| Letter regarding a contribution for a presentation to Mr. Basil Johnson. | 14th Dec 1928 | Morton \ M21 img010 | |
| Mr. Royce's feedback on a sample battery terminal and lead, with suggested improvements. | 7th Jul 1919 | Morton \ M21 img011 | |
| Purpose of a small vent hole in R.R.C.H. Carburetters. | 14th Jun 1917 | Morton \ M21 img012 | |
| Reliability and test results of Watford magnetos based on a report from the Air Board. | 28th May 1917 | Morton \ M21 img013 | |
| The performance of engines in planes, comparing them to competitors and discussing issues of power, weight and propeller size. | 30th Jul 1917 | Morton \ M21 img014 | |
| Aircraft engine performance, comparing with German planes and detailing improvements to the D.H.4 aircraft. | 1st Jul 1917 | Morton \ M21 img015 | |
| Complaining about the excessive weight of the Goshawk II Maythorn limousine body on a 20HP chassis. | 1st Sep 1925 | Morton \ M21 img016 | |
| Poor state of a top-heavy 20.HP specimen car and the bad impression it creates on visitors. | 26th Aug 1925 | Morton \ M21 img017 | |
| Weekly comparison of 20 HP chassis orders received for the financial years 1922-1923 and 1923-1924. | 19th Jan 1924 | Morton \ M21 img018 | |
| Weekly comparison of 40/50 HP chassis orders received for the financial years 1922-1923 and 1923-1924. | 19th Jan 1924 | Morton \ M21 img019 | |
| Summary of establishment charges per chassis from 1921 to the current financial year. | 27th Jul 1923 | Morton \ M21 img020 | |
| Cost and list price sheet for car parts and accessories for the Goshawk. | 19th Sep 1922 | Morton \ M21 img021 | |
| List of assumptions used for calculating anticipated bank balances. | 4th Oct 1912 | Morton \ M21 img022 | |
| Departmental memo discussing the design and ergonomics of car pedals. | 4th Oct 1912 | Morton \ M21 img023 | |
| Departmental memo regarding marks found on the dashboard of several cars, caused by the driver's feet. | 2nd Oct 1912 | Morton \ M21 img024 | |
| Explaining the reasons for the company's unfavorable cash position, citing issues with chassis orders, Goshawk manufacture, and Aero work. | 18th Jan 1923 | Morton \ M21 img025 | |
| Chassis deliveries, sales, and inventory for the period May to July 1923. | 21th Jul 1923 | Morton \ M21 img026 | |
| Weekly breakdown of car orders for 40/50 HP and 20 HP models, comparing figures from 1922 and 1923. | 21th Jul 1923 | Morton \ M21 img027 | |
| Selling price breakdown for the Goshawk model and a detailed comparison with competitor vehicles' specifications and prices. | 19th Sep 1922 | Morton \ M21 img028 | |
| Comparison table of 40/50 R-R model competitors' specifications and prices. | 19th Sep 1922 | Morton \ M21 img029 | |
| Selling price of the Goshawk model and a price comparison with competitor cars. | 19th Sep 1922 | Morton \ M21 img030 | |
| Comparison table of the 40/50 R-R model against its competitors' specifications and pricing. | 19th Sep 1922 | Morton \ M21 img031 | |
| Memo discussing solutions to mitigate engine heat transfer into the passenger compartment. | 19th Sep 1922 | Morton \ M21 img032 | |
| Vehicle interior fittings like door height, matting, and floor boards. | 17th Feb 1922 | Morton \ M21 img033 | |
| Letter regarding the dispatch of 2 Front Wheel Nail Catchers supplied by Ferranti Ltd. | 17th Feb 1922 | Morton \ M21 img034 | |
| Chassis knowledge, bonnet shutters, and an instruction from Mr. Royce. | 20th Jul 1914 | Morton \ M21 img035 | |
| Comparative performance of wire versus wooden wheels, citing a magazine article and customer feedback. | 24th Nov 1911 | Morton \ M21 img036 | |
| Note discussing customer concerns about wire wheels in relation to the London-Edinburgh trial and exports to India. | 24th May 1924 | Morton \ M21 img037 | |
| With a diagram discussing scuttle dash isolation on 40/50 models due to excessive movement. | 24th May 1924 | Morton \ M21 img038 | |
| Query regarding a deeper rubber washer between the dash and scuttle, and designing a complete scheme for chassis parts. | 9th Feb 1922 | Morton \ M21 img039 | |
| Letter from S. Z. de Ferranti regarding fittings for front-wheel Nail Catchers for trial on a car. | 9th Feb 1922 | Morton \ M21 img040 | |
| Letter discussing defective fittings, accompanied by a hand-drawn sketch of the component. | 21th Feb 1922 | Morton \ M21 img041 | |
| Internal note about locating a specific letter. | 12th Jan 1912 | Morton \ M21 img042 | |
| Departmental memo regarding the ventilation of the front seat. | 12th Jan 1912 | Morton \ M21 img043 | |
| Letter to Napier enquiring about the patent status of their front seat ventilation system. | 9th Jan 1912 | Morton \ M21 img044 | |
| Letter from D. Napier & Son regarding responsibility for the bodywork and a ventilating device on a car exhibited at the Olympia Show. | 11th Jan 1912 | Morton \ M21 img045 | |
| Departmental memo discussing a report from Bombay on the suitability of wooden versus wire wheels for colonial cars. | 2nd Sep 1912 | Morton \ M21 img046 | |
| Letter from Mulliner discussing a dashboard ventilation arrangement, its purpose, and related patents. | 3rd Feb 1912 | Morton \ M21 img047 | |
| Proposal to connect bodywork to the dashboard using a flexible strip of leather to mitigate issues caused by chassis flex. | 6th Feb 1912 | Morton \ M21 img048 | |
| Letter to Messrs Mulliner regarding separate dash boards and the relative movement of body and chassis. | 6th Feb 1912 | Morton \ M21 img049 | |
| Letter to S. F. Edge Ltd. inquiring about a patent for a separate body and chassis dash arrangement to avoid infringement. | 6th Feb 1912 | Morton \ M21 img050 | |
| Letter from S.F. Edge Limited providing patent numbers for an insulated body and a spring hinge. | 7th Feb 1912 | Morton \ M21 img051 | |
| Internal memo requesting a set of ventilators be made and fitted to a London Edinburgh Type car. | 1st Aug 1912 | Morton \ M21 img052 | |
| Internal departmental memo routing slip concerning Lord Dunraven's car 1420. | 25th Oct 1912 | Morton \ M21 img053 | |
| Instruction memo discussing the testing and placement of dash ventilators. | 7th Nov 1912 | Morton \ M21 img054 | |
| Rubbing of a nameplate showing the number 51LB. | 8th Feb 1971 | Morton \ M21 img055 | |
| Enquiry from a collector about a maker's plate found on a mechanised rail-car in Jordan, suspected to be a WWI-era armoured car conversion. | 8th Feb 1971 | Morton \ M21 img056 | |
| Letter from J.B. Goggs requesting information on a vehicle plate, specifically the vehicle type and production date. | 23th Jun 1922 | Morton \ M21 img057 | |
| Modifications to fit an armoured car battery into the frame of a Standard 40/50 vehicle. | 23th Jun 1922 | Morton \ M21 img058 | |
| Negative impact of larger diameter wheels on armoured car chassis and axles. | 8th Oct 1920 | Morton \ M21 img059 | |
| Confirmation of a telegram to Chichester regarding a government order and manufacturing capabilities. | 12th Oct 1920 | Morton \ M21 img060 | |
| Design and fitting of hand barring gear, an air pump, and a Maxfield pump for armoured cars. | 25th Oct 1920 | Morton \ M21 img061 | |
| Design memorandum for a tyre pump dashboard control mechanism for armoured cars, including an explanatory sketch. | 21th Oct 1920 | Morton \ M21 img062 | |
| Alternative lubrication method for a tyre pump on a 40/50 HP chassis, including specifications for valve springs and gearing. | 8th Oct 1920 | Morton \ M21 img063 | |
| Critique of War Office proposals for modifying 'Eagle' engines for use in tanks, citing vibration and flywheel design issues. | 8th Oct 1920 | Morton \ M21 img064 | |
| Design of various engine components including the carden shaft, flywheel, starter gear, and governor. | 1st Oct 1920 | Morton \ M21 img065 | |
| Design criticisms, seeking clarification on whether to proceed with instructed work, await new designs, or prepare modifications. | 21th Oct 1920 | Morton \ M21 img066 | |
| Proposal to fit a new back axle to armoured cars to overcome performance difficulties with climbing, cooling, and clutch slipping. | 28th Jun 1921 | Morton \ M21 img067 | |
| Vehicle performance under heavy loads, potential modifications to brakes, ratios, and clutch, along with performance figures. | 28th Jun 1921 | Morton \ M21 img068 | |
| Vehicle climbing performance based on weight, gradient, and wheel size. | 1st Jul 1921 | Morton \ M21 img069 | |
| Proposals and agreements for a new axle design for armoured cars. | 1st Jul 1921 | Morton \ M21 img070 | |
| The design and cost estimation for a new double reduction gear rear axle and brake system for armoured cars. | 8th Jun 1921 | Morton \ M21 img071 | |
| Costs and logistics for supplying axles for armoured cars to the government for urgent dispatch to India. | 6th Aug 1921 | Morton \ M21 img072 | |
| Impossibility of an armoured car carrying a proposed weight without a new axle and the challenges of sand testing. | 29th Aug 1921 | Morton \ M21 img073 | |
| Modification of a drawing for the rear lamp on Indian Armoured Cars. | 5th May 1921 | Morton \ M21 img074 | |
| Performance issues and proposed alterations for armoured cars destined for India. | 27th Jun 1921 | Morton \ M21 img075 | |
| Comparing the performance of a car against a Crossley model, detailing tests and issues like engine boiling. | 27th Jun 1921 | Morton \ M21 img076 | |
| Gear ratio, clutch performance, and results from a hill climb test. | 27th Jun 1921 | Morton \ M21 img077 | |
| Summary of investigations into the results of armoured car tests, detailing weights, gradients and performance. | 27th Jun 1921 | Morton \ M21 img078 | |
| Performance comparison and analysis of gear ratios and engine capabilities for different vehicles. | 27th Jun 1921 | Morton \ M21 img079 | |
| Trip to London to meet Mr. Day and a request to collect a Delage car for return to Derby. | 28th Nov 1921 | Morton \ M21 img080 | |
| The development and testing of an evaporative cooling system for the Phantom I Armoured Car. | 12th Apr 1933 | Morton \ M21 img081 | |
| Conclusions on a warning lamp scheme and an injector system for evaporatively cooled engines in armoured cars. | 12th Apr 1933 | Morton \ M21 img082 | |
| Detailed report on a special design radiator and steam condenser cooling system. | 12th Apr 1933 | Morton \ M21 img083 | |
| Engine cooling system performance, including pump pressure, road tests, and radiator modifications. | 12th Apr 1933 | Morton \ M21 img084 | |
| Stop/restart tests, a non-return valve, and the advantages of an evaporatively cooled system for armoured cars. | 9th May 1933 | Morton \ M21 img085 | |
| Letter regarding performance issues and recommended fixes for an Evaporatively-Cooled Phantom 1 Armoured Car. | 9th May 1933 | Morton \ M21 img086 | |
| Page 2 of a letter to Colonel N. Hudson discussing car speed and brake performance. | 9th May 1933 | Morton \ M21 img087 | |
| Gearbox and differential options for a six-wheeled vehicle for the India War Department. | 15th Apr 1930 | Morton \ M21 img088 | |
| Suggestion to transfer the differential to the gearbox for easier locking and unlocking, requiring a double transmission shaft. | 15th Apr 1930 | Morton \ M21 img089 | |
| Note detailing the completed assembly of Chassis 1. E+X, listing parts and their corresponding S.S. numbers. | 1st Jun 1919 | Morton \ M22 img001 | |
| Notes from a visit to Mr. Royce concerning preferences for wheels and specifications for the dynamo and electrical system. | 16th Dec 1918 | Morton \ M22 img002 | |
| Post-war policy decisions and experimental work following a conference. | 30th Jan 1919 | Morton \ M22 img003 | |
| Covering aero engine flight testing, car production expansion, radiator design choices, and battery ignition cam specifications. | 30th Jan 1919 | Morton \ M22 img004 | |
| Technical memorandum discussing ignition, lighting, battery, and chassis fuel feed systems for new car models. | 30th Jan 1919 | Morton \ M22 img005 | |
| Page 4 of a memo discussing an air valve mechanism, an anti-theft lock, valve gear covers, and foot warmers. | 30th Jan 1919 | Morton \ M22 img006 | |
| Approvals and considerations for vehicle components like foot warmers, fenders, starting handles, and valances. | 30th Jan 1919 | Morton \ M22 img007 | |
| Bodywork, tool box formation, and a rack and pinion method for reducing window rattles. | 30th Jan 1919 | Morton \ M22 img008 | |
| The adoption of new pistons and the use of scraper rings in engines. | 12th May 1915 | Morton \ M22 img009 | |
| Experiments on cylinder suction, scraper rings, and the use of Zephyr pistons. | 21th Feb 1919 | Morton \ M22 img010 | |
| Advantages of a new cast iron piston design for potential use in car 49GB. | 21th Mar 1912 | Morton \ M22 img011 | |
| Extract from a report detailing poor road-holding ability of a car, particularly at high speeds on bumpy surfaces. | 9th Sep 1916 | Morton \ M22 img012 | |
| Statement expressing dislike for large road wheels, considering them a disadvantage to the chassis. | 10th Oct 1916 | Morton \ M22 img013 | |
| Fuel and oil consumption for a post-war chassis, suggesting experiments with engine compression. | 10th Oct 1916 | Morton \ M22 img014 | |
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