| Description | Date | Identifier | |
| Design and material specifications for Step Irons, comparing them to the 25HP model. | 1st Feb 1932 | Box 178 \ 3 img063 | |
| J.3 dashboard and steering column support, referencing associated schematics. | 1st Feb 1932 | Box 178 \ 3 img064 | |
| Request for battery particulars to investigate methods for clamping them in battery boxes. | 3rd Feb 1932 | Box 178 \ 3 img065 | |
| Method to apply a supplementary valve to an epicyclic 3rd speed gearbox. | 24th Feb 1932 | Box 178 \ 3 img066 | |
| Scheme drawing for the bottom tank of a J. 3. radiator. | 5th Feb 1932 | Box 178 \ 3 img067 | |
| Design of battery boxes for J. 3. & 25HP models, specifically concerning the need for blueprints and lid options. | 11th Feb 1932 | Box 178 \ 3 img068 | |
| Querying and calculating the body weight of a 20-G-4 chassis with a list of special features and their estimated weights. | 12th Feb 1932 | Box 178 \ 3 img069 | |
| Re-arrangement of the rear support for the J.3. Exhaust System's silencer. | 16th Feb 1932 | Box 178 \ 3 img070 | |
| N. sch. 3430 quarter size layout of the J. 3. exhaust system and its front support. | 16th Feb 1932 | Box 178 \ 3 img071 | |
| Telegram requesting specifications for an Alfa gearbox and back axle. | 17th Feb 1932 | Box 178 \ 3 img072 | |
| Slight modification to the front spring rear anchorage cover for the exhaust system. | 17th Feb 1932 | Box 178 \ 3 img073 | |
| The requirement for 'C' steering on the first J.11 chassis. | 17th Feb 1932 | Box 178 \ 3 img074 | |
| The production of rear wheel arch castings for experimental J.3. bodies. | 20th Feb 1937 | Box 178 \ 3 img075 | |
| And comparing rear wheel arch clearances for the 25HP and J.3 models. | 20th Feb 1932 | Box 178 \ 3 img076 | |
| Revised scheme for the scuttle and dashboard layout for J.3. | 20th Feb 1932 | Box 178 \ 3 img077 | |
| New schemes for experimental bodies for the J. 3 model. | 20th Feb 1932 | Box 178 \ 3 img078 | |
| Requesting the width of gears at the root of the teeth for an Alfa Romeo gearbox. | 22th Feb 1932 | Box 178 \ 3 img079 | |
| Proposed heat shield for the J.3. exhaust system to prevent a cushion from contacting the hot pipe. | 24th Feb 1932 | Box 178 \ 3 img080 | |
| Pros and cons of synchro mesh versus epicyclic double top gears. | 26th Feb 1932 | Box 178 \ 3 img081 | |
| Design considerations and comparisons for epicyclic gearboxes, brakes, and control systems. | 26th Feb 1932 | Box 178 \ 3 img082 | |
| Design and control of an epicyclic gearbox with hydraulic friction brakes. | 26th Feb 1932 | Box 178 \ 3 img083 | |
| Suggestion to reduce the height of the rear axle's ventilated filler plug which interferes with the cushion. | 24th Feb 1932 | Box 178 \ 3 img084 | |
| Listing required accessories for the first Enclosed Limousine model, J.3. | 25th Feb 1932 | Box 178 \ 3 img085 | |
| Proposal to cheapen radiator shutters by using a standard tubular section, presenting three alternative manufacturing methods for the upper trunnion and levers. | 26th Feb 1932 | Box 178 \ 3 img086 | |
| The J.3. petrol tank layout and the necessity of a sheet metal cover for the electrical petrol gauge fitting. | 26th Feb 1932 | Box 178 \ 3 img087 | |
| Performance trials and engine specifications for the Continental Phantom and 25HP models. | 29th Feb 1932 | Box 178 \ 3 img088 | |
| Features and development of various carburetter types for the Phantom model. | 29th Feb 1932 | Box 178 \ 3 img089 | |
| Engine valve timing, including a diagram and notes on overlap and tappet clearance. | 29th Feb 1932 | Box 178 \ 3 img090 | |
| Gearbox issue where first gear picks up the reverse wheel on the 25HP synchro-mesh model. | 29th Feb 1932 | Box 178 \ 3 img091 | |
| Mounting schemes for a Lucas H.F. horn on a 25HP car. | 29th Feb 1932 | Box 178 \ 3 img092 | |
| Clarifying the production schedule for cast wheel arches for the first J.S. body, detailing an alternative method using sheet steel. | 29th Feb 1932 | Box 178 \ 3 img093 | |
| Driver-controlled versus automatic shock dampers, proposing a speed-dependent system. | 7th Mar 1932 | Box 178 \ 3 img094 | |
| And comparing several different damper control system schemes. | 7th Mar 1932 | Box 178 \ 3 img095 | |
| Design and fitting of a spring shackle for steering joggles. | 7th Mar 1932 | Box 178 \ 3 img096 | |
| The critical need for the highest quality steel for connecting rod bolts. | 7th Mar 1932 | Box 178 \ 3 img097 | |
| Expressing pleasure and concern about new special metal cast iron brake drums. | 7th Mar 1932 | Box 178 \ 3 img098 | |
| Design of connecting rods for various Vee engines, focusing on the issue of detaching them before piston removal. | 7th Mar 1932 | Box 178 \ 3 img099 | |
| Different carburetter options for the Continental Phantom & 25HP models. | 5th Mar 1932 | Box 178 \ 3 img100 | |
| New scheme (3416) for the vacuum-operated distant control of shock dampers for experimentation. | 1st Mar 1932 | Box 178 \ 3 img101 | |
| Design and development of a luggage carrier and rear apron, referencing specific schemes and a Sunbeam model. | 9th May 1932 | Box 178 \ 3 img102 | |
| Propeller shaft elasticity, compression ignition engines, and cooling system improvements for cars. | 12th Mar 1932 | Box 178 \ 3 img103 | |
| Design and development of semi-expanding carburetters. | 12th Mar 1932 | Box 178 \ 3 img104 | |
| Design sketch and discussion on modifying a carburettor's suction chamber and air passages to manage lift. | 1st Mar 1932 | Box 178 \ 3 img105 | |
| The design, arrangement, and mounting of a headlamp control switch. | 1st Mar 1932 | Box 178 \ 3 img106 | |
| Modifications and troubleshooting for the J. 3. Engine Unit, focusing on half time gear issues. | 15th Mar 1932 | Box 178 \ 3 img107 | |
| Improvements for gear tooth design (barrel shape, bedding) and exploring auto-adjustment mechanisms for tappets. | 17th Sep 1929 | Box 178 \ 3 img108 | |
| Comparing the dimensions of a 9HP Riley Monaco Saloon to the 'Bensport' model, noting a fault with the steering wheel placement. | 14th Mar 1932 | Box 178 \ 3 img109 | |
| Design considerations for ignition wiring and coil mounting. | 14th Mar 1932 | Box 178 \ 3 img110 | |
| Reversing the hand of a fan bracket and creating a new spindle forging. | 14th Mar 1932 | Box 178 \ 3 img111 | |
| The construction of a new cylindrical condenser for the J. 3. ignition system, comparing various manufacturers. | 14th Mar 1932 | Box 178 \ 3 img112 | |
| The assembly and external connection methods for a condenser. | 16th Mar 1932 | Box 178 \ 3 img113 | |
| Causes of bodywork cracking on continental touring saloons, related to engine mounting and chassis rigidity. | 16th Mar 1932 | Box 178 \ 3 img114 | |
| Chassis flexibility and proposed modifications to a panel joint to prevent cracking. | 16th Mar 1932 | Box 178 \ 3 img115 | |
| Challenges of painting steel and aluminium wings to prevent rust, referencing an article from the Automobile Engineer. | 16th Mar 1932 | Box 178 \ 3 img116 | |
| Temporary scheme for controllable shock dampers with distant control. | 1st Mar 1932 | Box 178 \ 3 img117 | |
| Alfa Romeo engine's performance and design, comparing it to the Peregrine engine. | 18th Mar 1932 | Box 178 \ 3 img118 | |
| Aero engine design, discussing issues like liner distortion and advocating for a new construction model. | 21th Mar 1932 | Box 178 \ 3 img119 | |
| Proposed engine modifications, outlining objections and suggesting alternative construction details. | 19th Mar 1932 | Box 178 \ 3 img120 | |
| Design specifications and modifications for a remote-controlled shock damper. | 19th Mar 1932 | Box 178 \ 3 img121 | |
| The collection and fitting of an experimental 25HP Enclosed Drive Limousine body. | 23th Mar 1932 | Box 178 \ 3 img122 | |
| Revisions to the 'Bensport' chassis layout, including wheelbase increase and radiator design changes. | 24th Mar 1932 | Box 178 \ 3 img123 | |
| Proposing three options to reduce the air valve lift in a semi-expanding carburetter, with a preference for the third option. | 1st Apr 1932 | Box 178 \ 3 img124 | |
| Cross-section drawing of a mechanical valve, possibly for a carburettor, with design annotations. | 1st Apr 1932 | Box 178 \ 3 img125 | |
| Design, patent considerations, and manufacturing suggestions for a semi-expanding carburetter. | 1st Apr 1932 | Box 178 \ 3 img126 | |
| Design for a hydraulic shock damper control system. | 4th Apr 1932 | Box 178 \ 3 img127 | |
| The design features of an adjustable pump and damper system, including controls, oil type, and valve construction. | 28th Apr 1934 | Box 178 \ 3 img128 | |
| Schematic of a multi-valve mechanical component with various views, sections, and labeled parts. | 5th Apr 1932 | Box 178 \ 3 img129 | |
| Car electrical ignition work, focusing on coil design and spark plug settings. | 5th Apr 1932 | Box 178 \ 3 img130 | |
| Challenges and potential changes to car electrical systems, specifically switches and the starter. | 5th Apr 1932 | Box 178 \ 3 img131 | |
| Merits of the current electrical wiring system versus a potential alternative observed on an Alfa Romeo. | 2nd Apr 1932 | Box 178 \ 3 img132 | |
| Design of a four-door Light Saloon for the second experimental J.III chassis. | 5th Apr 1932 | Box 178 \ 3 img133 | |
| Request for particulars of an Alfa Romeo clutch to assist in the design of a similar clutch for the Bensport. | 6th Apr 1932 | Box 178 \ 3 img134 | |
| Communication regarding a missing description of a Cadillac freewheel and a drawing of a Buick gearbox. | 11th Apr 1932 | Box 178 \ 3 img135 | |
| Carburettor design for J. 3. and Peregrine engines. | 12th Apr 1932 | Box 178 \ 3 img136 | |
| The 'J. 3.' model, considering whether to proceed or scrap the project and outlining requirements for a new gearbox and chassis. | 14th Mar 1932 | Box 178 \ 3 img137 | |
| Design and control of a new hydraulic damper system. | 14th Apr 1932 | Box 178 \ 3 img138 | |
| Car work on intake & exhaust silencers and steering modifications. | 14th Apr 1932 | Box 178 \ 3 img139 | |
| Causes and potential remedies for ignition misfires at slow speeds. | 16th Apr 1932 | Box 178 \ 3 img140 | |
| Technical memo discussing the causes and potential solutions for transmission vibration on the 20/25 model. | 18th Apr 1932 | Box 178 \ 3 img141 | |
| 20/25 ignition system settings, including spark plug gaps, distributor modifications, and coil insulation. | 14th Apr 1932 | Box 178 \ 3 img142 | |
| Poor design and performance of Bentley-Draper hydraulic shock dampers. | 16th Apr 1932 | Box 178 \ 3 img143 | |
| Gearbox schemes and comparing gear ratios for the B.S. and Peregrine models. | 15th Apr 1932 | Box 178 \ 3 img144 | |
| Design considerations for a synchro-mesh gearbox, comparing direct control with a rocking shaft system. | 1st Apr 1938 | Box 178 \ 3 img145 | |
| Alternative schemes for a spring-controlled rear shackle for front springs. | 15th Apr 1932 | Box 178 \ 3 img146 | |
| Proposal for a spring-controlled rear shackle for front springs on the P. 2 model, including experimental ratings. | 15th Apr 1932 | Box 178 \ 3 img147 | |
| Outlining naming conventions for drawings sent to coachbuilders to conceal project identities. | 18th Apr 1932 | Box 178 \ 3 img148 | |
| The wheelarch clearances for the Peregrine 2 model fitted with Dunlop Fort Tyres. | 18th Apr 1932 | Box 178 \ 3 img149 | |
| High co-efficient of friction of an Alfa Romeo clutch and its implications. | 21th Apr 1932 | Box 178 \ 3 img150 | |
| Clarifying that the Cadillac gearbox has 2 synchro mesh speeds, not 3. | 25th Apr 1932 | Box 178 \ 3 img151 | |
| Design changes and requirements for the first 'Peregrine' four-door saloon car body built by Park Ward. | 28th Apr 1932 | Box 178 \ 3 img152 | |
| Sending N. scheme 3461 for a four-door, six-light saloon Peregrine body and requesting prints. | 28th Apr 1932 | Box 178 \ 3 img153 | |
| Analysing the causes of transmission and other engine vibrations. | 5th May 1932 | Box 178 \ 3 img154 | |
| Gearbox design, focusing on the reverse pinion, gear ratios, and associated components. | 5th May 1932 | Box 178 \ 3 img155 | |
| Design and issues of a new two-piece cylinder block for aero engines, comparing it to an older scheme. | 5th May 1932 | Box 178 \ 3 img156 | |
| Design changes to the automatic damper control for the P. 2. S. M. gearbox. | 5th May 1932 | Box 178 \ 3 img157 | |
| Sending a revised print for a better sports clutch thrust arrangement. | 10th May 1932 | Box 178 \ 3 img158 | |
| Supercharger options (Roots vs Powerplus) and potential engine modifications for speed cars. | 11th May 1932 | Box 178 \ 3 img159 | |
| Noise issues in axle dampers, proposing design modifications and comparing with other systems. | 11th May 1932 | Box 178 \ 3 img160 | |
| Causes of noisy engine tappets, their relation to cam design, temperature, and potential solutions. | 11th May 1932 | Box 178 \ 3 img161 | |
| Technical discussion on valve auto-adjustment mechanisms, clutch jaggers, and crankshaft damper designs. | 10th Nov 1933 | Box 178 \ 3 img162 | |
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