| Description | Date | Identifier | |
| Letter to A.G. Booth of Humber Ltd. regarding an inquiry about a 'Hayes' fan. | 31th May 1939 | Box 126 \ 2 scan0118 | |
| Letter from Humber Limited to W.A. Robotham concerning a previous enquiry about an American representative. | 2nd Jun 1939 | Box 126 \ 2 scan0119 | |
| Visit to Humbers Ltd. to discuss issues and alternative designs for water pumps and fans. | 16th Jun 1939 | Box 126 \ 2 scan0120 | |
| Technical report discussing engine fans and cooling systems, including comparisons with Humber's designs. | 16th Jun 1939 | Box 126 \ 2 scan0121 | |
| Fin and tube radiators, a cooling test procedure, and the performance of aluminium versus pressed steel pulleys. | 16th Jun 1939 | Box 126 \ 2 scan0122 | |
| Request to rebuild a Humber car following a completed weight analysis. | 16th Jun 1939 | Box 126 \ 2 scan0123 | |
| Photograph illustrating the method of mounting and locating a Lucas Starter motor in a Humber Super Snipe unit. | 19th Jun 1939 | Box 126 \ 2 scan0124 | |
| Photograph illustrating the mounting and locating method for a Lucas Starter motor in a Humber Super Snipe unit. | 19th Jun 1939 | Box 126 \ 2 scan0125 | |
| Close-up view of a starter motor pinion aligning with an engine casing. | 27th Jun 1939 | Box 126 \ 2 scan0126 | |
| Covering note for a supplied Humber Snipe scraper ring. | 27th Jun 1939 | Box 126 \ 2 scan0127 | |
| Cover sheet for particulars and sketches of the 1939 Humber Super Snipe chassis. | 11th Jul 1939 | Box 126 \ 2 scan0128 | |
| Technical specifications for the Humber Super 'Snipe' 1939 model. | 18th Nov 1938 | Box 126 \ 2 scan0129 | |
| Specifications for engine and transmission components. | 18th Nov 1938 | Box 126 \ 2 scan0130 | |
| Technical specifications for gearbox ratios, gears, camshaft, rear axle, differential, and petrol pump. | 18th Nov 1938 | Box 126 \ 2 scan0131 | |
| Hand-drawn engineering diagram of a cylinder head with dimensions and a cross-section view. | 18th Nov 1938 | Box 126 \ 2 scan0132 | |
| Hand-drawn cross-section diagram of a cylinder head with dimensions. | 18th Nov 1938 | Box 126 \ 2 scan0133 | |
| Drawing of a water pump case with various dimensions. | 18th Nov 1938 | Box 126 \ 2 scan0134 | |
| Drawing of a water pump case with dimensions. | 18th Nov 1938 | Box 126 \ 2 scan0135 | |
| Diagram of a water pump case and a flexible drive for a dynamo and water pump. | 18th Nov 1938 | Box 126 \ 2 scan0136 | |
| Drawing of a water pump impellor with dimensions and notes. | 18th Nov 1938 | Box 126 \ 2 scan0137 | |
| Dimensional drawing of a connecting rod, including cross-sections and a scrap view of the screw detail. | 18th Nov 1938 | Box 126 \ 2 scan0138 | |
| Drawing of a connecting rod cap with dimensions. | 18th Nov 1938 | Box 126 \ 2 scan0139 | |
| Drawing of a piston for a Humber Snipe. | 18th Nov 1938 | Box 126 \ 2 scan0140 | |
| Drawing showing the dimensions of an exhaust valve and an inlet valve. | 18th Nov 1938 | Box 126 \ 2 scan0141 | |
| Technical drawing of a Tappet with dimensions. | 18th Nov 1938 | Box 126 \ 2 scan0142 | |
| Dimensioned drawing for a 'Tappet Block'. | 18th Nov 1938 | Box 126 \ 2 scan0143 | |
| Assembly diagrams for the front and rear camshaft oil retainers. | 18th Nov 1938 | Box 126 \ 2 scan0144 | |
| Technical drawing of a crankshaft damper with multiple cross-sections and dimensions. | 18th Nov 1938 | Box 126 \ 2 scan0145 | |
| Hand-drawn schematic of a timing gear drive system with annotations for components and dimensions. | 18th Nov 1938 | Box 126 \ 2 scan0146 | |
| Diagram of the petrol pump, water pump, and dynamo drive assembly. | 18th Nov 1938 | Box 126 \ 2 scan0147 | |
| Drawing of a breather arrangement, including a deflector and joint washer. | 18th Nov 1938 | Box 126 \ 2 scan0148 | |
| Drawing of a front engine mounting bracket. | 18th Nov 1938 | Box 126 \ 2 scan0149 | |
| Drawing with dimensions for a front engine mounting. | 18th Nov 1938 | Box 126 \ 2 scan0150 | |
| Hand-drawn diagram illustrating the specifications for a front engine mounting. | 18th Nov 1938 | Box 126 \ 2 scan0151 | |
| Drawing of a rear engine mounting with various sectional views and dimensions. | 18th Nov 1938 | Box 126 \ 2 scan0152 | |
| Technical drawing of a flywheel with two views and full dimensions. | 18th Nov 1938 | Box 126 \ 2 scan0153 | |
| Drawing of a flywheel starter ring. | 18th Nov 1938 | Box 126 \ 2 scan0154 | |
| Hand-drawn schematic of a front suspension system with a transverse spring and Luvax shock absorber. | 18th Nov 1938 | Box 126 \ 2 scan0155 | |
| Design drawing for a front suspension yoke. | 18th Nov 1938 | Box 126 \ 2 scan0156 | |
| Technical drawing of a front suspension yoke. | 18th Nov 1938 | Box 126 \ 2 scan0157 | |
| Schematic diagram for a Shackle Pin (Yoke) and a Stub Axle. | 18th Nov 1938 | Box 126 \ 2 scan0158 | |
| Drawing showing the dimensions and features of a stub axle. | 18th Nov 1938 | Box 126 \ 2 scan0159 | |
| Engineering drawings for a roll rod and typical chassis frame sections. | 18th Nov 1938 | Box 126 \ 2 scan0160 | |
| Drawing of a differential casing. | 18th Nov 1938 | Box 126 \ 2 scan0161 | |
| Sectional drawing of a differential casing with dimensional annotations. | 18th Nov 1938 | Box 126 \ 2 scan0162 | |
| Hand-drawn engineering schematic of differential pinions and a thrust washer. | 18th Nov 1938 | Box 126 \ 2 scan0163 | |
| Technical drawing detailing the specifications of differential pinions. | 18th Nov 1938 | Box 126 \ 2 scan0164 | |
| Drawing of an air silencer with dimensions. | 18th Nov 1938 | Box 126 \ 2 scan0165 | |
| Cross-sectional drawing of an Air Silencer with dimensions and material specifications. | 25th Jul 1939 | Box 126 \ 2 scan0166 | |
| Inquiring about the availability and price of an ex-experimental Humber car for Glasgow. | 25th Jul 1939 | Box 126 \ 2 scan0167 | |
| Visit to Humber Ltd to review their organisation for correlating service troubles with design and experimental departments. | 26th Jul 1939 | Box 126 \ 2 scan0168 | |
| Evaluating a competitor's system for charting service costs, expenditures, and complaints using graphs and pictures. | 26th Jul 1939 | Box 126 \ 2 scan0169 | |
| Specimen chart showing total F.O.C. expenditure over a 12-month period. | 26th Jul 1939 | Box 126 \ 2 scan0170 | |
| Hand-drawn graph showing purely fictitious monthly expenditure on various vehicle units. | 26th Jul 1939 | Box 126 \ 2 scan0171 | |
| Specimen chart tracking issues and expenditure for the 4¼ Litre Bentley clutch jaggers. | 27th Jul 1939 | Box 126 \ 2 scan0172 | |
| Request to remove a Humber crankshaft damper for investigation regarding adaptation to a B.60 model. | 27th Jul 1939 | Box 126 \ 2 scan0173 | |
| Private car for Glasgow, its purchase price, and a part-exchange deal. | 31th Jul 1939 | Box 126 \ 2 scan0174 | |
| Weight analysis of a Humber car to identify areas for potential weight reduction in their own vehicle. | 1st Aug 1939 | Box 126 \ 2 scan0175 | |
| Weight comparisons and reduction strategies for various car components against competitors. | 1st Aug 1939 | Box 126 \ 2 scan0176 | |
| Weight analysis comparing the B.V. (mainly 9-B-V) and a 1939 Humber Super Snipe Saloon. | 3rd Aug 1939 | Box 126 \ 2 scan0177 | |
| Comparative analysis of component weights and features between a Humber vehicle and a 'B.V.' vehicle, page 2. | 3rd Aug 1939 | Box 126 \ 2 scan0178 | |
| Weight analysis comparing the components of a 'B.V.' vehicle against a Humber. | 3rd Aug 1939 | Box 126 \ 2 scan0179 | |
| Weight comparison table for vehicle components of Humber S.S. and B.V. Al. engine models. | 3rd Aug 1939 | Box 126 \ 2 scan0180 | |
| Weight comparison list of various vehicle components and assemblies. | 3rd Aug 1939 | Box 126 \ 2 scan0181 | |
| Weight comparison table for car components and total curb weight. | 8th Aug 1939 | Box 126 \ 2 scan0182 | |
| Replacement of a Humber with a 14 HP Vauxhall for experimental investigation. | 8th Aug 1939 | Box 126 \ 2 scan0183 | |
| The loan of experimental cars and the preparation of one for a 15,000-mile test. | 12th Aug 1939 | Box 126 \ 2 scan0184 | |
| Weight analysis comparing the chassis electrical system of a Bentley car to a Humber car. | 23th Aug 1939 | Box 126 \ 2 scan0185 | |
| Weight comparison list of electrical components between Humber and R.R. models. | 19th Aug 1939 | Box 126 \ 2 scan0186 | |
| Weight comparison sheet for various vehicle components and extras for Humber and R.R. models. | 19th Aug 1939 | Box 126 \ 2 scan0187 | |
| Weight comparison of engine components between Humber and R.R. models. | 31th Aug 1939 | Box 126 \ 2 scan0188 | |
| Letter regarding an order and delivery arrangements for a secondhand 1939 Humber Snipe car for the Glasgow Factory. | 31th Aug 1939 | Box 126 \ 2 scan0189 | |
| The handover of a Humber Snipe and the rendering of an invoice. | 1st Sep 1939 | Box 126 \ 2 scan0190 | |
| Location of the Humber Weight Analysis document. | 23th Oct 1939 | Box 126 \ 2 scan0191 | |
| Listing drawings and parts for a Humber Damper on a B.40 engine crankshaft. | 9th Jun 1941 | Box 126 \ 2 scan0192 | |
| Adaptation of a Humber Snipe crankshaft damper to a Bentley 40 engine to investigate a vibration issue. | 11th Jun 1941 | Box 126 \ 2 scan0193 | |
| Adapting a Humber Damper for a B.40 Crank to investigate engine vibration. | 11th Jun 1941 | Box 126 \ 2 scan0194 | |
| The 8-cylinder Ford's power-to-weight ratio and its potential to compete with existing models. | 5th Oct 1932 | Box 126 \ 3 scan0001 | |
| Comparison table of car weights and required engine sizes to achieve a consistent power-to-weight ratio. | 6th Oct 1932 | Box 126 \ 3 scan0002 | |
| Performance figures and design philosophy of the Ford V.8 Cyl. car. | 6th Oct 1932 | Box 126 \ 3 scan0003 | |
| Road test report on a Ford V.8 two-seater coupe. | 7th Nov 1932 | Box 126 \ 3 scan0004 | |
| Positive and negative aspects of a Ford car. | 23th Dec 1932 | Box 126 \ 3 scan0005 | |
| Internal memorandum discussing the impact of motor tax on car sales, referencing an increase in Ford registrations. | 23th Dec 1932 | Box 126 \ 3 scan0006 | |
| Visit to the Dagenham factory to research the Lincoln 12 and Textolite gears. | 4th Jul 1933 | Box 126 \ 3 scan0007 | |
| Comparative analysis of a Lincoln 12-cylinder engine's features against other designs and an internal project named 'Spectre'. | 4th Jul 1933 | Box 126 \ 3 scan0008 | |
| Report comparing features of Lincoln, Daimler, and Ford V.8 models, with implications for the Spectre design. | 4th Jul 1933 | Box 126 \ 3 scan0009 | |
| Visit to Dagenham regarding the use and testing of Textolite timing gears for the Ford Motor Co. | 2nd Sep 1933 | Box 126 \ 3 scan0010 | |
| The cyanide process for producing hardened gears with minimal distortion. | 25th Sep 1933 | Box 126 \ 3 scan0011 | |
| Letter from Ford Motor Company Ltd. regarding trying out new products and arranging a visit. | 25th Sep 1933 | Box 126 \ 3 scan0012 | |
| Letter to Ford Motor Co. regarding a delayed order for a 10 HP Ford. | 14th May 1935 | Box 126 \ 3 scan0013 | |
| Specifications and analysis of a Ford V-8 Engine, including details on balance and critical speed. | 27th Sep 1935 | Box 126 \ 3 scan0014 | |
| Analysis of the Ford V-8 engine's design characteristics. | 2nd Oct 1935 | Box 126 \ 3 scan0015 | |
| Letter to Ford discussing the 12-cylinder and V8 engines, steering linkage, and pistons. | 7th Oct 1935 | Box 126 \ 3 scan0016 | |
| Letter from Ford Motor Company Ltd acknowledging receipt of a letter addressed to Mr A R Smith. | 8th Oct 1935 | Box 126 \ 3 scan0017 | |
| Sending notes following a trial of a 12-cylinder Lincoln. | 4th Dec 1935 | Box 126 \ 3 scan0018 | |
| Driving notes and impressions on a 12-cylinder Lincoln car. | 1st Dec 1935 | Box 126 \ 3 scan0019 | |
| Critical assessment of a Lincoln chassis, covering its body, instruments, clutch, engine, and headlights. | 2nd Dec 1935 | Box 126 \ 3 scan0020 | |
| Telex message to Fordmotor regarding the unavailability of a 20/25 model for loan. | 20th Dec 1935 | Box 126 \ 3 scan0021 | |
| Letter from Ford Motor Company requesting a certificate of vehicle possession for audit purposes. | 1st Jan 1936 | Box 126 \ 3 scan0022 | |
| Letter certifying possession of a Lincoln vehicle, property of Ford Motor Company Limited, on 31st December 1935. | 31th Dec 1935 | Box 126 \ 3 scan0023 | |
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