| Description | Date | Identifier | |
| Standardisation of chassis parts, specifically adding friction dampers to the engine mounting to reduce vibration. | 3rd Oct 1923 | Box 172 \ 1 img046 | |
| Standardisation proposal for a new petrol level indicator to improve appearance and visibility. | 30th Oct 1923 | Box 172 \ 1 img047 | |
| Standardisation proposal for shorter instrument board brackets to improve coachwork. | 17th Nov 1923 | Box 172 \ 1 img048 | |
| Standardisation report for Dunlop Artillery Steel Wheels as an alternative to wire wheels. | 22th Jun 1923 | Box 172 \ 1 img049 | |
| Offering Dunlop steel artillery wheels as an alternative when a customer refuses wire wheels. | 22th Jun 1923 | Box 172 \ 1 img050 | |
| Dunlop Artillery Steel Wheels and Standardisation Sheet No. 4586. | 2nd Jan 1924 | Box 172 \ 1 img051 | |
| Standardisation proposal for a reduced diameter swan neck exhaust pipe to reduce noise. | 21th Dec 1923 | Box 172 \ 1 img052 | |
| Standardisation of the chassis Undershield to make it easier to take down. | 15th Jan 1924 | Box 172 \ 1 img053 | |
| Material value for the standardisation of a chassis undershield, part X.No.4272. | 18th Jan 1924 | Box 172 \ 1 img054 | |
| Standardisation of friction discs for the slipper wheel, proposing a change from fibre to bakelized linen. | 21th Jan 1924 | Box 172 \ 1 img055 | |
| Finding a suitable friction material for slipper flywheels on 20 HP cars. | 4th Jan 1924 | Box 172 \ 1 img056 | |
| Standardisation proposal for a stay for the exhaust pipe to prevent vibration. | 15th Apr 1924 | Box 172 \ 1 img057 | |
| Standardisation proposal for a carburetter air inlet to reduce noise. | 29th Apr 1924 | Box 172 \ 1 img058 | |
| Modified air inlet for a 20 HP car, detailing noise issues and providing a horsepower comparison with the standard part. | 29th Apr 1914 | Box 172 \ 1 img059 | |
| Standardisation of Chassis Parts regarding K.L.G. Sparking Plugs. | 20th May 1924 | Box 172 \ 1 img060 | |
| Standardisation of frame tie rods to increase stiffness of the frame. | 26th Jun 1924 | Box 172 \ 1 img061 | |
| Standardisation proposal for an improved luggage grid design. | 11th Jun 1924 | Box 172 \ 1 img062 | |
| Standardisation of the 20 HP luggage grid, returning a costed standard sheet X.3524. | 24th Jun 1924 | Box 172 \ 1 img063 | |
| Standardisation test report for a new radiator and shutter design intended to improve appearance. | 7th Apr 1924 | Box 172 \ 1 img064 | |
| Standardisation of chassis parts, specifically the lubricator on the rear universal joint. | 10th Sep 1924 | Box 172 \ 1 img065 | |
| The altered position of a 20 HP rear universal joint lubricator. | 11th Sep 1924 | Box 172 \ 1 img066 | |
| Standardisation of chassis parts for side steering tube joint lubrication. | 6th Oct 1924 | Box 172 \ 1 img067 | |
| Standardisation report on the use of copper tubes in place of steel for the cylinder and cylinder head. | 14th Jul 1925 | Box 172 \ 1 img068 | |
| Standardisation of chassis parts for a 20 HP chassis with 4-wheel brakes and a 4-speed gearbox. | 10th Aug 1925 | Box 172 \ 1 img069 | |
| Standardisation of chassis parts for a 20 HP car with 4-wheel brakes and 4-speed gearbox. | 10th Aug 1925 | Box 172 \ 1 img070 | |
| Standardisation report for an improved catch on the magneto drive to make it easier to operate. | 8th Oct 1925 | Box 172 \ 1 img071 | |
| Standardisation of chassis parts report for a lock plate on the exhaust pipe nut. | 8th Oct 1925 | Box 172 \ 1 img072 | |
| Standardisation of chassis parts, specifically dampers for brake drums. | 14th Oct 1925 | Box 172 \ 1 img073 | |
| Returning standardisation sheet X.No.4257 with the cost of supplying and fitting parts to an existing chassis. | 21th Oct 1925 | Box 172 \ 1 img074 | |
| Standardisation of the thrust race for the rear axle bevel pinion. | 14th Oct 1925 | Box 172 \ 1 img075 | |
| Standardisation of Chassis Parts - Slipper Wheels fitted with Dowel Pegs. | 10th Dec 1925 | Box 172 \ 1 img076 | |
| Standardisation of chassis parts for modified dust covers for front brakes. | 20th Feb 1926 | Box 172 \ 1 img077 | |
| Standardisation proposal for the deletion of the window in the float chamber to prevent leaks. | 16th Mar 1926 | Box 172 \ 1 img078 | |
| Proposal for the deletion of the window in the carburetter float chamber to avoid leaks. | 5th Mar 1926 | Box 172 \ 1 img079 | |
| Standardisation of a chassis frame, moving the joggle 1' further back to improve coachwork. | 18th Mar 1926 | Box 172 \ 1 img080 | |
| Standardisation proposal for moving a frame joggle 1 inch further back to improve coachwork. | 18th Mar 1926 | Box 172 \ 1 img081 | |
| Standardisation of a modified starting handle jaw to improve ease of turning the engine by hand. | 23th Apr 1926 | Box 172 \ 1 img082 | |
| Standardisation document for modified louvres for the bonnet. | 12th Apr 1926 | Box 172 \ 1 img083 | |
| Standardisation document for a friction device for pivots to prevent low speed wobbles. | 30th Apr 1926 | Box 172 \ 1 img084 | |
| Standardisation of connecting rods with loose big end bearings to improve reliability. | 18th May 1926 | Box 172 \ 1 img085 | |
| Standardisation document for well base rims and 5 1/4' tyres to improve riding. | 4th May 1926 | Box 172 \ 1 img086 | |
| Standardisation proposal for a modified steering design to reduce shocks on the steering wheel. | 18th May 1926 | Box 172 \ 1 img087 | |
| Standardisation of chassis parts to move pedals nearer the dash. | 18th May 1926 | Box 172 \ 1 img088 | |
| Standardisation of chassis parts, approving the use of hydraulic dampers on the front of the 20 HP model. | 18th May 1926 | Box 172 \ 1 img089 | |
| Standardisation of modified steering for existing 20 HP cars. | 20th Aug 1926 | Box 172 \ 1 img090 | |
| Standardisation report for modified steering on existing 20 HP cars. | 20th Aug 1926 | Box 172 \ 1 img091 | |
| Standardisation proposal for incorporating 'B' type side levers with 'D' type steering. | 22th Oct 1926 | Box 172 \ 1 img092 | |
| Standardisation of chassis parts for flexibility in the servo device to eliminate servo jaggers. | 25th Oct 1926 | Box 172 \ 1 img093 | |
| Standardisation of bonnet louvres to improve appearance by reducing their height. | 18th Nov 1926 | Box 172 \ 1 img094 | |
| Standardisation of louvres in the bonnet for the 20 HP model, seeking confirmation of no extra cost. | 29th Nov 1936 | Box 172 \ 1 img095 | |
| Standardisation of a thermometer with an electrical contact for the chassis. | 4th Jan 1927 | Box 172 \ 1 img096 | |
| Standardisation document for a modified side steering tube to improve steering. | 3rd Dec 1926 | Box 172 \ 1 img097 | |
| Standardisation document for a spring loaded cross steering tube for the 20 HP chassis. | 7th Jan 1927 | Box 172 \ 1 img098 | |
| Standardisation proposal for side steering tube springs to improve the 20 HP steering. | 10th Dec 1926 | Box 172 \ 1 img099 | |
| Outlining an agreement to modify side steering tube springs. | 24th Dec 1926 | Box 172 \ 1 img100 | |
| Standardisation proposal for side steering tube ends to reduce joggles and road shocks. | 24th Dec 1926 | Box 172 \ 1 img101 | |
| Standardisation of a chassis part, changing the piston design to use five narrow rings instead of three narrow and one wide. | 6th Apr 1927 | Box 172 \ 1 img102 | |
| Standardisation of chassis parts, replacing cast iron induction pipes with aluminium ones to improve reliability. | 5th Apr 1927 | Box 172 \ 1 img103 | |
| Standardisation report for an improved undershield. | 5th Apr 1927 | Box 172 \ 1 img104 | |
| Standardisation test report for artillery wheels. | 23th May 1927 | Box 172 \ 1 img105 | |
| Returning a standardisation sheet for chassis parts with costs, noting specific exclusions from the savings calculation. | 30th May 1927 | Box 172 \ 1 img106 | |
| Standardisation of a Zenith petrol filter to prevent stoppage of jets. | 23th May 1927 | Box 172 \ 1 img107 | |
| Standardisation of an anti-brake squeaking device for the 20 HP chassis. | 11th Mar 1927 | Box 172 \ 1 img108 | |
| Costs for the standardisation of an Anti-Brake Squeaking Device. | 19th Mar 1927 | Box 172 \ 1 img109 | |
| Standardisation of hydraulic shock dampers on the rear of the chassis. | 23th May 1927 | Box 172 \ 1 img110 | |
| Standardisation report for a new petrol tank with a reserve and larger filler. | 23th May 1927 | Box 172 \ 1 img111 | |
| Standardisation report for 33' x 6' tyres on the 20 HP chassis. | 21th Mar 1927 | Box 172 \ 1 img112 | |
| Returning a standardisation sheet for chassis parts with costs filled in. | 21th Apr 1927 | Box 172 \ 1 img113 | |
| Standardisation of a new petrol tank with a reserve and filler for a chassis. | 23th May 1927 | Box 172 \ 1 img114 | |
| Modification to the side steering tube end to prevent clicking when turning on a left lock. | 23th Jun 1927 | Box 172 \ 1 img115 | |
| Standardisation report for the spring-loaded front end side steering tube. | 21th Jun 1927 | Box 172 \ 1 img116 | |
| Standardisation of a radiator with integral vertical shutters for the 20 HP chassis. | 23th May 1927 | Box 172 \ 1 img117 | |
| Standardisation of new controls on the instrument board to conform with the changeover of mixture controls to the column. | 23th May 1927 | Box 172 \ 1 img118 | |
| Standardisation of chassis parts for the mixture control on column. | 23th May 1927 | Box 172 \ 1 img119 | |
| Standardisation of the spare wheel fixing bolt, changing from a hexagon head to a handle. | 7th Nov 1927 | Box 172 \ 1 img120 | |
| Standardisation of chassis parts for a wider dashboard and bonnet to improve coachwork. | 10th Nov 1927 | Box 172 \ 1 img121 | |
| Standardisation report for a modified starter motor drive to improve reliability. | 1st Mar 1928 | Box 172 \ 1 img122 | |
| Standardisation proposal for improved steering geometry on the 20 HP chassis. | 22th Dec 1927 | Box 172 \ 1 img123 | |
| Standardisation proposal for a modified starter motor drive, to improve reliability by replacing the Bijur scheme. | 1st Mar 1928 | Box 172 \ 1 img124 | |
| Standardisation document for replacing the .930 lead worm with a .750 lead worm and nut on the 20 HP chassis. | 2nd Apr 1928 | Box 172 \ 1 img125 | |
| Standardisation of a reduced axle ratio for chassis parts to increase performance. | 19th May 1928 | Box 172 \ 1 img126 | |
| Standardisation proposal for raising the headlamps on the 20 HP chassis. | 3rd Sep 1928 | Box 172 \ 1 img127 | |
| Standardisation of chassis parts, specifically raising the headlamps on the 20 HP model. | 3rd Sep 1928 | Box 172 \ 1 img128 | |
| Standardisation proposal for a higher radiator and dashboard to improve appearance. | 7th Jun 1928 | Box 172 \ 1 img129 | |
| Standardisation of chassis parts for the 20 HP, specifically 20' rims and 6' tyres. | 24th Jul 1928 | Box 172 \ 1 img130 | |
| Standardisation of the 20 HP cast dash chassis part. | 9th Jul 1928 | Box 172 \ 1 img131 | |
| Standardisation form for the modification to bonnet lines to improve appearance. | 6th Nov 1928 | Box 172 \ 1 img132 | |
| Standardisation of a modified gearbox casing to reduce the height of front floorboards. | 30th May 1928 | Box 172 \ 1 img133 | |
| Standardisation of Mechanics Joints for the 20 HP car to improve transmission. | 17th Dec 1928 | Box 172 \ 1 img134 | |
| Standardisation document for a modified brake lever. | 30th May 1928 | Box 172 \ 1 img135 | |
| Standardisation of a 'Tangye' jack for the 20 HP chassis, replacing a Michelin-made part. | 20th Feb 1929 | Box 172 \ 1 img136 | |
| Standardisation of the rear spare wheel carrier and luggage grid to increase ground clearance. | 26th Mar 1929 | Box 172 \ 1 img137 | |
| Standardisation document for the Hobson K-S distance petrol gauge. | 7th Jun 1928 | Box 172 \ 1 img138 | |
| Standardisation form for a chassis part, including costs, test dates, and approval signatures. | 2nd Sep 1929 | Box 172 \ 1 img139 | |
| Standardisation of a 20 HP steering wheel, including costs, tests, and approval. | 4th Apr 1929 | Box 172 \ 1 img140 | |
| Standardisation form for chassis parts detailing fitment, testing date, and associated costs. | 8th Sep 1929 | Box 172 \ 1 img141 | |
| Standardisation of the 20 HP Steering Wheel. | 4th Apr 1929 | Box 172 \ 1 img142 | |
| Standardisation of chassis parts, specifically wheels with 19' rims to reduce car height. | 24th Apr 1929 | Box 172 \ 1 img143 | |
| Standardisation form for fitting a new part to a chassis, detailing testing information and costs. | 15th Jun 1929 | Box 172 \ 1 img144 | |
| Standardisation of wheels with 19' rims to reduce vehicle height. | 24th Apr 1929 | Box 172 \ 1 img145 | |
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