| Description | Date | Identifier | |
| Modifications and improvements for the 20 HP chassis material. | 26th Feb 1923 | Box 142 \ 2 scan0036 | |
| List of technical instructions for various automotive components. | 26th Feb 1923 | Box 142 \ 2 scan0037 | |
| Specifications for radiator, wiring, and front/rear spring fittings. | 26th Feb 1923 | Box 142 \ 2 scan0038 | |
| List of agreed modifications and material instructions for the next series of 40/50 HP Chassis. | 27th Feb 1923 | Box 142 \ 2 scan0039 | |
| Essential release of all material for the 20HP Chassis, series 751-1000, by a new deadline. | 25th Jun 1923 | Box 142 \ 2 scan0040 | |
| Status report on materials and components for the 20HP chassis, batch 751-1000. | 25th Jun 1923 | Box 142 \ 2 scan0041 | |
| Continued memo discussing the Dashboard Ignition Terminal and Body Lighting Junction Box, with instructions for ordering. | 25th Jun 1923 | Box 142 \ 2 scan0042 | |
| Material and component status report for the 20HP chassis, series 751-1000. | 25th Jun 1923 | Box 142 \ 2 scan0043 | |
| List of material and design updates for 20HP chassis numbers 751-1000. | 25th Jun 1923 | Box 142 \ 2 scan0044 | |
| Continued checklist of vehicle components and their approval status, with additional instructions. | 25th Jun 1923 | Box 142 \ 2 scan0045 | |
| Correcting details for the 20 HP chassis 751-1000 regarding steel wheels and front axle control. | 29th Jun 1923 | Box 142 \ 2 scan0046 | |
| Listing parts to be held up for the 20-HP chassis, numbers 751-1000. | 2nd Jul 1923 | Box 142 \ 2 scan0047 | |
| Parts list for the petrol tank, pedals, operating gear, dashbrackets and footboards. | 2nd Jul 1923 | Box 142 \ 2 scan0048 | |
| Material composition and properties of aluminium pistons, comparing hard and soft results. | 8th Jul 1923 | Box 142 \ 2 scan0049 | |
| Piston alloy composition, specifically copper and iron content, and issues related to heat treatment, distortion, and cracking. | 4th Jul 1925 | Box 142 \ 2 scan0050 | |
| Piston troubles, annealing processes, and a special 'Nelson' type piston. | 4th Jul 1925 | Box 142 \ 2 scan0051 | |
| Material list for the 'T' Series chassis, comprising 200 units. | 27th Jul 1923 | Box 142 \ 2 scan0052 | |
| Continuation sheet listing components with their associated Section and L.O.P. numbers. | 25th Jul 1923 | Box 142 \ 2 scan0053 | |
| Instructions for ordering material and outlining special features for the 40/50 chassis, series 'T'. | 19th Dec 1923 | Box 142 \ 2 scan0054 | |
| Specifications and modifications for various chassis components. | 19th Dec 1923 | Box 142 \ 2 scan0055 | |
| List of production instructions and material changes for the 20HP chassis, commencing chassis 1001. | 29th Mar 1924 | Box 142 \ 2 scan0056 | |
| Continued memorandum regarding dashboard and starter switch modifications, with a request for standardisation sheets. | 29th Mar 1934 | Box 142 \ 2 scan0057 | |
| Material specifications and changes for the 'G' Series vehicles. | 13th Mar 1925 | Box 142 \ 2 scan0058 | |
| The decision on ordering front springs. | 13th Mar 1925 | Box 142 \ 2 scan0059 | |
| Proposal outlining material ordering and feature incorporation for the 'W' Series car, referencing modifications to the subframe, gear mechanism, and radiator. | 25th Mar 1925 | Box 142 \ 2 scan0060 | |
| Suggestion for an integral shutter and radiator design while retaining existing bonnet and dash dimensions. | 25th Mar 1925 | Box 142 \ 2 scan0061 | |
| Improvements and variations for the 'W' Series material. | 27th Mar 1925 | Box 142 \ 2 scan0062 | |
| Instructions to order materials for 300 sets of a 40/50 HP chassis and a discussion on related mechanism modifications. | 29th Apr 1926 | Box 142 \ 2 scan0063 | |
| Standardization of parts including the front axle, wheels, shock absorbers, and petrol tank for a new vehicle series. | 29th Apr 1926 | Box 142 \ 2 scan0064 | |
| Differences between 'W' Series and 'V' Series components and proposing a course of action for standardization. | 30th Jun 1925 | Box 142 \ 2 scan0065 | |
| Design and use of 'X' Series frame side members and a luggage grid. | 30th Jun 1925 | Box 142 \ 2 scan0066 | |
| Recommendation regarding frame modifications for a luggage grid on the 'X' Series chassis. | 30th Jun 1925 | Box 142 \ 2 scan0067 | |
| Changes and parts ordering for the 20 HP 'K' Series chassis. | 5th Jul 1926 | Box 142 \ 2 scan0068 | |
| Authorizing part orders and modifications for the 40/50 HP C.2 Series chassis. | 5th Jul 1926 | Box 142 \ 2 scan0069 | |
| Design decisions for a new front axle, gearbox, silencer mechanism, and cast dash for the D.2 series. | 20th Dec 1926 | Box 142 \ 2 scan0070 | |
| List of proposed modifications for the 40/50 HP, E.2 series chassis, requesting an update on standardization tests. | 10th Mar 1927 | Box 142 \ 2 scan0071 | |
| List and standardization of modified parts for the next series of production. | 14th Mar 1927 | Box 142 \ 2 scan0072 | |
| Search for a new, blemish-free radiator material and evaluating a potential new nickel alloy. | 15th Jun 1927 | Box 142 \ 2 scan0073 | |
| Requesting a report on experimental work for various vehicle components. | 20th Oct 1927 | Box 142 \ 2 scan0074 | |
| Confirming a telephone communication to continue using standard material for the first half of the F.2 series. | 20th Dec 1927 | Box 142 \ 2 scan0075 | |
| Changes to chassis materials for the Phantom F.2 and 20 HP 'M' series chassis. | 20th Dec 1937 | Box 142 \ 2 scan0076 | |
| Clarifying the use of 'standard material' for the F.2. Series, specifically the radiator and spare wheel carrier. | 21th Dec 1927 | Box 142 \ 2 scan0077 | |
| Material and feature updates for the F.2 series. | 23th Dec 1927 | Box 142 \ 2 scan0078 | |
| Authorising material orders for 40/50 HP and 20-HP chassis and discussing future modifications. | 24th Feb 1928 | Box 142 \ 2 scan0079 | |
| Standardization of a Rear Wheel Carrier and a Turbulent Head for the F-2 series. | 24th Feb 1928 | Box 142 \ 2 scan0080 | |
| Production challenges and delays for the new 20 HP and 40/50 HP chassis, urging the Drawing Office to expedite arrangements. | 7th Mar 1928 | Box 142 \ 2 scan0081 | |
| The urgent ordering of material for New Series 20 HP and 40/50 HP chassis to meet increased demand. | 8th Mar 1928 | Box 142 \ 2 scan0082 | |
| List of proposed improvements for the next series of 100 Phantom cars. | 24th Apr 1928 | Box 142 \ 2 scan0083 | |
| Parts ordering and modifications for the 12-EX car based on testing results. | 12th May 1928 | Box 142 \ 2 scan0084 | |
| List of proposed material and design changes for the Phantom G.2B series chassis based on experimental fittings to chassis 12-EX. | 12th May 1928 | Box 142 \ 2 scan0085 | |
| Proposed material changes for the 'N' series 20 HP chassis, including a higher radiator and increased headlamp height. | 21th May 1928 | Box 142 \ 2 scan0086 | |
| List of experimental 'N.P.P. Chassis Material' parts that were never fitted into service, seeking advice on their disposal. | 6th Jul 1928 | Box 142 \ 2 scan0087 | |
| Continued parts list index with corresponding reference numbers. | 6th Jul 1928 | Box 142 \ 2 scan0088 | |
| Parts list with corresponding reference numbers and a memo regarding a Sequence Starter. | 6th Jul 1928 | Box 142 \ 2 scan0089 | |
| Recommending that chassis material parts that cannot be used for production or modified should be scrapped. | 8th Jul 1928 | Box 142 \ 2 scan0090 | |
| List of modifications for the 40/50 HP J.2 Series chassis components. | 9th Feb 1929 | Box 142 \ 2 scan0091 | |
| List of production instructions for modifications on various vehicle components. | 9th Feb 1929 | Box 142 \ 2 scan0092 | |
| List of production instructions and modifications for various vehicle components. | 9th Feb 1929 | Box 142 \ 2 scan0093 | |
| Listing vehicle components by section and their production release status. | 9th Feb 1929 | Box 142 \ 2 scan0094 | |
| Confirming verbal instructions to hold materials for wire wheels and frame cross members pending a decision. | 8th Mar 1929 | Box 142 \ 2 scan0095 | |
| Authorisation to order 100 sets of material for the 20 HP chassis 'P' series, with clarifications on specific parts. | 19th Apr 1929 | Box 142 \ 2 scan0096 | |
| Material requirements and engine alterations for the 20 HP Chassis 'P' Series. | 24th Apr 1929 | Box 142 \ 2 scan0097 | |
| Reinstating the short frame for the 'P' Series 20 HP chassis. | 8th May 1929 | Box 142 \ 2 scan0098 | |
| Asking for an opinion regarding the scrapping of manufactured parts for the Continental Chassis. | 17th May 1929 | Box 142 \ 2 scan0099 | |
| Disposal of manufactured parts for the Continental Chassis. | 7th May 1929 | Box 142 \ 2 scan0100 | |
| Disposal of materials for a chassis that was never put into production. | 7th May 1929 | Box 142 \ 2 scan0101 | |
| Decision to scrap surplus chassis parts for the Sports type Continental model. | 24th May 1929 | Box 142 \ 2 scan0102 | |
| Decision to proceed with issuing instructions and part lists for 40/50 HP K.2 series material. | 13th Aug 1929 | Box 142 \ 2 scan0103 | |
| Outstanding materials and changes to be instructed for the second half of the 40/50 HP Chassis K.2 series. | 23th Oct 1929 | Box 142 \ 2 scan0104 | |
| Instructions for the exhaust fittings and cutout for the second half of the 40/50 HP Chassis K.2 series. | 23th Oct 1929 | Box 142 \ 2 scan0105 | |
| Instructions to proceed with material for the 40/50 HP. Chassis, L.2 Series, noting specific exceptions and modifications. | 23th Oct 1929 | Box 142 \ 2 scan0106 | |
| Programme for 40/50 HP Chassis, Series L.2, detailing chassis number allocation. | 11th Nov 1929 | Box 142 \ 2 scan0107 | |
| Production schedule and material order dates for 40/50-HP Chassis Series 'L2'. | 4th Nov 1929 | Box 142 \ 2 scan0108 | |
| Outlining a disagreement on the release dates for a further 200 chassis, proposing an alternative schedule. | 15th Nov 1929 | Box 142 \ 2 scan0109 | |
| To hold work on specific rear axle bolts for the 40/50-HP 'L.2.' Series chassis. | 18th Dec 1929 | Box 142 \ 2 scan0110 | |
| To hold work on specific rear brake parts for the 'L.2.' Series chassis. | 20th Dec 1929 | Box 142 \ 2 scan0111 | |
| Authorising an order for material for 200 M.2 series chassis, listing parts that differ from the L.2 series. | 13th Jan 1930 | Box 142 \ 2 scan0112 | |
| 40/50 HP Chassis M.2 Series programme and its division into two half-series. | 10th Jan 1930 | Box 142 \ 2 scan0113 | |
| Production schedule for the 40/50-HP Chassis - Series M2, detailing quantities, outputs, and key dates. | 14th Jan 1930 | Box 142 \ 2 scan0114 | |
| Confirming the standardisation of the 20-inch rim and 'Fort' type tyre for the L.2 series. | 3rd Feb 1930 | Box 142 \ 2 scan0115 | |
| Wheel and tyre specifications for the L2 series vehicle. | 4th Feb 1930 | Box 142 \ 2 scan0116 | |
| Ordering materials for a batch of 20/25 HP 'S' series chassis, listing exceptions. | 28th Feb 1930 | Box 142 \ 2 scan0117 | |
| Authorizing a further batch of 200 20/25 HP 'S' Series Chassis and enclosing the production programme. | 1st Mar 1930 | Box 142 \ 2 scan0118 | |
| Production schedule for 20/25-HP Chassis - Series 'S'. | 5th Mar 1930 | Box 142 \ 2 scan0119 | |
| Directive regarding the material used for exhaust valves on 20 HP and 40/50 HP chassis, changing to S.L.V. steel. | 4th Apr 1930 | Box 142 \ 2 scan0120 | |
| Directive to revert to S.L.V. specification No. 238.A for exhaust valves on 20/25 HP and 40/50 HP chassis. | 7th Apr 1930 | Box 142 \ 2 scan0121 | |
| List of modifications and new features for the 40/50 HP Chassis N.2 series material. | 8th Jul 1930 | Box 142 \ 2 scan0122 | |
| Request to issue standardisation sheets for specific parts and highlighting material hold-ups. | 8th Jul 1930 | Box 142 \ 2 scan0123 | |
| Urging for a quick decision on outstanding details for the 40/50 HP N.2 Series chassis to maintain the production schedule. | 5th Sep 1930 | Box 142 \ 2 scan0124 | |
| Parts for the 40/50 HP Chassis - N2 series that are held up by the Drawing Office (D.O). | 4th Sep 1930 | Box 142 \ 2 scan0125 | |
| Material release status for the N.2 series parts. | 10th Sep 1930 | Box 142 \ 2 scan0126 | |
| Release status and issues with various vehicle parts. | 29th Sep 1930 | Box 142 \ 2 scan0127 | |
| Delayed release of parts details for the 40/50 HP Chassis, N2 Series. | 30th Sep 1930 | Box 142 \ 2 scan0128 | |
| The proposed production programme for a further 50 20/25 HP 'T' Series chassis (numbers 3701-3800). | 30th Apr 1931 | Box 142 \ 2 scan0129 | |
| Production schedule for the 20/25 HP. Chassis - Series 'T', numbers 3701-3800. | 18th Apr 1931 | Box 142 \ 2 scan0130 | |
| Specifications for the 'Japan 1 Second Half 'T' Series' 25 HP cars. | 8th May 1931 | Box 142 \ 2 scan0131 | |
| Proposed improvements and status of various components for a 25 HP model, including springs, axles, and dynamo. | 8th May 1931 | Box 142 \ 2 scan0132 | |
| Lengthening of the bonnet and instructions for wheel carriers for the 'T' Series Japan 1 model. | 11th May 1931 | Box 142 \ 2 scan0133 | |
| Schedule of material changes and modifications for the 20/25 HP Chassis 'T' Series. | 1st Oct 1931 | Box 142 \ 2 scan0134 | |
| To the Drawing Office regarding items to proceed with and items to slow down for the 'T' series. | 1st Oct 1931 | Box 142 \ 2 scan0135 | |
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