| Description | Date | Identifier | |
| Standardisation of chassis parts to introduce flexibility in servo operation and overcome jaggers. | 30th Apr 1926 | Box 171 \ 1 img029 | |
| Standardisation proposal for a new steering column support to reduce movement. | 4th Jun 1926 | Box 171 \ 1 img030 | |
| Standardisation of a stiffener for the rear spring buffer to prevent bending of the chassis frame. | 29th May 1926 | Box 171 \ 1 img031 | |
| Standardisation of a steering worm and nut with .940' lead to improve existing steerings. | 4th Jun 1926 | Box 171 \ 1 img032 | |
| Standardisation of weaker springs in the side steering tube to reduce road shocks. | 4th Jun 1926 | Box 171 \ 1 img033 | |
| Standardisation of carburetter made in aluminium instead of bronze. | 6th Jul 1926 | Box 171 \ 1 img034 | |
| Standardisation report for replacing a cast iron induction and bend with an aluminium version to reduce weight. | 6th Jul 1926 | Box 171 \ 1 img035 | |
| The proposed rearrangement of instruments on cars, accompanied by two blueprints. | 13th Aug 1926 | Box 171 \ 1 img036 | |
| Standardisation proposal for transposing the ammeter and thermometer on 20.PH & 10/50 models. | 14th Jul 1926 | Box 171 \ 1 img037 | |
| Proposal for the re-arrangement of instruments on the 'Twenty' and 'Phantom' models. | 4th Jul 1926 | Box 171 \ 1 img038 | |
| Standardisation of chassis parts by fitting wheels with well base rims and 6.75' tyres. | 6th Sep 1926 | Box 171 \ 1 img039 | |
| Standardisation of weaker springs in the side steering tube to reduce road shocks. | 14th Aug 1926 | Box 171 \ 1 img040 | |
| Standardisation of weaker springs in the side steering tube to reduce road shocks. | 14th Aug 1926 | Box 171 \ 1 img041 | |
| Standardisation of a fan with duralumin flanges and blades to reduce weight. | 23th Sep 1926 | Box 171 \ 1 img042 | |
| Alteration to the modified Hardy fabric coupling for dynamo and magneto drives to prevent fabric distortion. | 24th Sep 1926 | Box 171 \ 1 img043 | |
| Alteration to the bottom washer for valve springs to improve oil drainage and spring location. | 24th Sep 1926 | Box 171 \ 1 img044 | |
| Standardisation of dust excluders on the new type front axle. | 22th Sep 1926 | Box 171 \ 1 img045 | |
| Alteration to Aero Engine Parts for an improved air vent and larger filler in the petrol tank. | 24th Sep 1926 | Box 171 \ 1 img046 | |
| Alteration to the rear road spring roller and plate for 40/50 HP chassis. | 24th Sep 1926 | Box 171 \ 1 img047 | |
| Alteration to the Front Silencer using non-rusting and better lagging material (staybright). | 24th Sep 1926 | Box 171 \ 1 img048 | |
| Alteration form for a modified bush and spring on a 'D' type keyed change gear shaft for a 40/50 HP Chassis. | 24th Sep 1926 | Box 171 \ 1 img049 | |
| The standardisation of chassis parts, detailing an alteration to the change gear and brake operating mechanism. | 13th Oct 1926 | Box 171 \ 1 img050 | |
| Standardisation of an anti-rattle device for steering column controls. | 23th Sep 1926 | Box 171 \ 1 img051 | |
| Standardisation of front hydraulic shock dampers. | 23th Sep 1926 | Box 171 \ 1 img052 | |
| Cost analysis memo regarding the standardization of front hydraulic shock dampers. | 4th Oct 1926 | Box 171 \ 1 img053 | |
| Alterations to solid key type bottom tappets for the 40/50 HP Chassis to reduce noise. | 24th Sep 1926 | Box 171 \ 1 img054 | |
| Cost implications of standardizing the solid key type bottom tappet. | 5th Oct 1923 | Box 171 \ 1 img055 | |
| Test report on a set of tappets fitted to vehicle 12-EX and run for 10,000 miles in France. | 22th Sep 1926 | Box 171 \ 1 img056 | |
| Standardisation report for an oil relief valve designed to improve reliability. | 22th Sep 1926 | Box 171 \ 1 img057 | |
| Standardisation of chassis parts for servo balance links. | 22th Sep 1926 | Box 171 \ 1 img058 | |
| Standardisation report for a wider rear axle track to match the front axle. | 23th Sep 1926 | Box 171 \ 1 img059 | |
| Standardisation of 40/50 chassis parts, specifically the rear axle with a wider track. | 23th Oct 1926 | Box 171 \ 1 img060 | |
| Alteration to the gearbox to adopt a modified change gear mechanism for the 40/50 HP Chassis. | 1st Oct 1926 | Box 171 \ 1 img061 | |
| Standardisation of chassis parts, specifically steel shells for main crankshaft bearings. | 22th Sep 1926 | Box 171 \ 1 img062 | |
| Standardisation report for a lighter front axle. | 23th Sep 1926 | Box 171 \ 1 img063 | |
| Standardisation of chassis parts for the front axle, referencing attached cost sheet. | 8th Nov 1926 | Box 171 \ 1 img064 | |
| Standardisation of spring loaded cross steering tube ball ends. | 25th Oct 1926 | Box 171 \ 1 img065 | |
| Standardisation proposal for incorporating a 'B' type gear lever on a chassis with 'C' type steering. | 20th Nov 1926 | Box 171 \ 1 img066 | |
| Alteration sheet for the implementation of rear hydraulic shock dampers on the 40/50 chassis. | 1st Oct 1926 | Box 171 \ 1 img067 | |
| Standardisation of a modified butterfly throttle angle and controls to prevent sticking and clear the bonnet. | 20th Nov 1926 | Box 171 \ 1 img068 | |
| Standardisation of roller bearings to the carburetter throttle. | 18th Nov 1926 | Box 171 \ 1 img069 | |
| Standardisation of chassis parts for ball bearings on governor short shaft. | 4th Dec 1926 | Box 171 \ 1 img070 | |
| Standardisation of 6.75' traction tread well base rims on old type axle. | 29th Nov 1926 | Box 171 \ 1 img071 | |
| The standardisation of chassis parts, including wheels, tyres, and hydraulic dampers. | 10th Dec 1926 | Box 171 \ 1 img072 | |
| Standardisation of chassis parts, replacing existing water pipe clips with Jubilee clips for rubber joints. | 18th Nov 1926 | Box 171 \ 1 img073 | |
| Standardisation of a chassis part, a thermometer with an electrical contact to prevent boiling. | 22th Sep 1926 | Box 171 \ 1 img074 | |
| Standardisation of weaker springs in the side steering tube to reduce steering shocks. | 26th Nov 1926 | Box 171 \ 1 img075 | |
| Standardisation of chassis parts, specifically 1500 lbs. springs with old type heavy front axle and .720 worm. | 29th Nov 1926 | Box 171 \ 1 img076 | |
| Standardisation of chassis parts including springs, front axle and worm. | 22th Dec 1926 | Box 171 \ 1 img077 | |
| Standardisation report for replacing a rubber ring with a metal plate spring in the servo shaft. | 24th Dec 1926 | Box 171 \ 1 img078 | |
| Proposal to standardise the spherical type union connections across all chassis. | 20th Dec 1926 | Box 171 \ 1 img079 | |
| Standardisation of a front brake drum damper to reduce brake squeaks. | 10th Dec 1926 | Box 171 \ 1 img080 | |
| Sign-off document regarding the standardisation of coachwork features. | 16th Jul 1926 | Box 171 \ 1 img081 | |
| Standardisation of a single arm throttle governor control lever with a larger diameter roller. | 15th Dec 1926 | Box 171 \ 1 img082 | |
| Standardisation document for an alteration to the springs in the cross steering tube. | 10th Jan 1927 | Box 171 \ 1 img083 | |
| Alteration to part G.73149, changing its length to reduce front braking from 40% to 33%. | 9th Dec 1926 | Box 171 \ 1 img084 | |
| Standardisation of chassis parts for an improved silent direct drive engagement and roller spigot bearing. | 19th Jan 1927 | Box 171 \ 1 img085 | |
| Standardisation of chassis parts relating to an improved silent direct drive engagement and roller spigot bearing. | 11th Feb 1927 | Box 171 \ 1 img086 | |
| Standardisation of chassis parts, specifically the front wing stay. | 22th Sep 1926 | Box 171 \ 1 img087 | |
| Request for particulars to attach to the Standardisation Sheet for the Phantom Front Wing Stay. | 23th Feb 1927 | Box 171 \ 1 img088 | |
| Purchasing department requisition form to scrap 100 defective crystals. | 12th Jul 1927 | Box 171 \ 1 img089 | |
| Standardisation of chassis parts relating to the exhaust cutout and controls to stop rattling and simplify them. | 23th Dec 1926 | Box 171 \ 1 img090 | |
| Form for the standardisation of chassis parts, detailing costs, test dates, and departmental approvals. | 15th Apr 1928 | Box 171 \ 1 img091 | |
| Standardisation of chassis parts, specifically the side steering tube end. | 9th Feb 1927 | Box 171 \ 1 img092 | |
| Standardisation document for fitting the E2 series on the first chassis. | 14th Jul 1927 | Box 171 \ 1 img093 | |
| The standardisation and factory cost of a modified Side Steering Tube for a 'W' Series Chassis. | 12th Mar 1927 | Box 171 \ 1 img094 | |
| Standardisation of steel artillery wheels as an alternative to wire wheels. | 21th Apr 1927 | Box 171 \ 1 img095 | |
| The standardisation of steel artillery wheels as an alternative to wire wheels. | 9th May 1927 | Box 171 \ 1 img096 | |
| Standardisation of chassis parts for the rear wheel and luggage grid. | 24th Dec 1926 | Box 171 \ 1 img097 | |
| Standardisation report for chassis parts detailing implementation questions and costs. | 21th Dec 1938 | Box 171 \ 1 img098 | |
| Sign-off sheet for the standardisation of coachwork features. | 1st Jun 1927 | Box 171 \ 1 img099 | |
| Standardisation of jack pads fitted to the rear axle. | 26th May 1927 | Box 171 \ 1 img100 | |
| Standardisation form for a new chassis part, detailing fitting, testing, and costs. | 1st Oct 1927 | Box 171 \ 1 img101 | |
| Proposal to replace bonnets with shutters with louvered or plain bonnets. | 11th May 1927 | Box 171 \ 1 img102 | |
| Introduction of a new standardized chassis part, including test date and costs. | 1st Oct 1927 | Box 171 \ 1 img103 | |
| Standardisation of a baffle on the silencer to reduce heat transfer to the car body. | 25th May 1927 | Box 171 \ 1 img104 | |
| Form tracking the standardisation of a new chassis part, including first fitment, testing date, and associated costs. | 24th Sep 1927 | Box 171 \ 1 img105 | |
| Standardisation report for a front axle torque control component. | 22th Jun 1927 | Box 171 \ 1 img106 | |
| Standardisation form detailing the introduction of a new part for the F. series chassis, including test date and tooling costs. | 1st Apr 1928 | Box 171 \ 1 img107 | |
| Standardisation of 40/50 Water Pump Gland Packing. | 14th Jul 1927 | Box 171 \ 1 img108 | |
| Fitting of a new part to a chassis, including cost and testing date. | 1st Oct 1927 | Box 171 \ 1 img109 | |
| Standardisation of chassis parts for the No.7 'Compact' Tyre Pump by E. Hill. | 29th Aug 1927 | Box 171 \ 1 img110 | |
| Change notice for M.O. 'Cotton' Putty, to be introduced once existing stocks are depleted. | 29th Aug 1937 | Box 171 \ 1 img111 | |
| Standardisation proposal for a 'Compact' type tyre pump from makers E. Hill. | 29th Aug 1927 | Box 171 \ 1 img112 | |
| Price increase of a new Dunlop jack for the Phantom and the ongoing search for a suitable alternative. | 28th Sep 1927 | Box 171 \ 1 img113 | |
| Standardisation of a jack for road wheels with an improved range for low-pressure tyres. | 8th Sep 1927 | Box 171 \ 1 img114 | |
| Standardisation questionnaire regarding the fitting of a new chassis part. | 26th Sep 1912 | Box 171 \ 1 img115 | |
| Standardisation of chassis parts for modified controls for shutters and starter carburetter. | 11th May 1927 | Box 171 \ 1 img116 | |
| Standardisation report for a new chassis part, detailing costs and test schedule. | 1st Apr 1928 | Box 171 \ 1 img117 | |
| Standardisation of chassis parts by deleting oil holes and grooves in steering worms. | 20th Oct 1927 | Box 171 \ 1 img118 | |
| 'Standardisation of Chassis Parts' form detailing the fitting of a new part and associated costs. | 15th Oct 1931 | Box 171 \ 1 img119 | |
| Standardisation document for a modified pipe to the exhaust hot spot to improve reliability. | 10th Nov 1927 | Box 171 \ 1 img120 | |
| Form for the standardisation of chassis parts, detailing implementation, costs, and approvals. | 9th Apr 1928 | Box 171 \ 1 img121 | |
| Standardisation sheet detailing cost figures comparing new and old parts. | 24th Nov 1927 | Box 171 \ 1 img122 | |
| Standardisation report for a modified pipe to the exhaust hot spot to improve reliability. | 10th Nov 1927 | Box 171 \ 1 img123 | |
| Standardisation of a 14/52 axle ratio to increase performance. | 28th Nov 1927 | Box 171 \ 1 img124 | |
| Standardisation of chassis parts form detailing a change related to rivets. | 26th Nov 1938 | Box 171 \ 1 img125 | |
| Standardisation of an exhaust choke valve lubrication scheme to eliminate squeaks. | 29th Nov 1927 | Box 171 \ 1 img126 | |
| Standardisation of a 9.5 inch pendulum lever for standard steering to reduce road shocks and make parking easier. | 24th Mar 1928 | Box 171 \ 1 img127 | |
| Chassis number, test date, and costs for fitting a new part. | 9th Jun 1928 | Box 171 \ 1 img128 | |
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