| Description | Date | Identifier | |
| Design position report detailing modifications and their status for the Bentley and Spectre chassis. | 17th Dec 1934 | Box 30 \ 3 Scan029 | |
| Design and modification status report for the Spectre project. | 17th Dec 1934 | Box 30 \ 3 Scan030 | |
| Progress report listing design modifications and their completion status for the 'SPECTRE' project. | 17th Dec 1934 | Box 30 \ 3 Scan031 | |
| Design position report detailing the status of various components for the Spectre and Wraith chassis. | 17th Dec 1934 | Box 30 \ 3 Scan032 | |
| Design status report for the Wraith chassis components. | 17th Dec 1934 | Box 30 \ 3 Scan033 | |
| Design position report detailing the status of various components for the Wraith chassis. | 17th Dec 1934 | Box 30 \ 3 Scan034 | |
| Design position report detailing the status of single cylinder and general research projects. | 17th Dec 1934 | Box 30 \ 3 Scan035 | |
| Design position report listing the status of single cylinder, Kestrel engine, and general research items. | 17th Dec 1934 | Box 30 \ 3 Scan036 | |
| Design position report on components for Kestrel, Vulture, and P.V.12 'B' engines. | 17th Dec 1934 | Box 30 \ 3 Scan037 | |
| Design position report on the P.V.12 and Merlin II engines. | 7th Jan 1935 | Box 30 \ 3 Scan038 | |
| Cover memo for a fortnightly report on the progress of design work. | 7th Jan 1935 | Box 30 \ 3 Scan039 | |
| Design position report listing modifications and their status for a Bentley chassis. | 7th Jan 1935 | Box 30 \ 3 Scan040 | |
| List of design items and their completion status for the Spectre Chassis. | 7th Jan 1935 | Box 30 \ 3 Scan041 | |
| Status report on design modifications for the Spectre Chassis. | 7th Jan 1935 | Box 30 \ 3 Scan042 | |
| Design position report detailing the status of modifications for the Spectre chassis and Phantom II tank engine. | 7th Jan 1935 | Box 30 \ 3 Scan043 | |
| Design position report detailing the status of various components for the Wraith chassis. | 7th Jan 1935 | Box 30 \ 3 Scan044 | |
| Status report on the design position of various Wraith chassis components. | 7th Jan 1935 | Box 30 \ 3 Scan045 | |
| List of modifications and their design status for the 20/25 HP Chassis. | 7th Jan 1935 | Box 30 \ 3 Scan046 | |
| Progress report on single cylinder and general research items, listing their current design position. | 7th Jan 1935 | Box 30 \ 3 Scan047 | |
| Status report on various engine research and design items, indicating whether they are in hand or completed. | 7th Jan 1935 | Box 30 \ 3 Scan048 | |
| Design position report detailing the status of various Vulture, P.V.XII, and Merlin II engine components. | 7th Jan 1935 | Box 30 \ 3 Scan049 | |
| Design status report detailing components for the Merlin II and P.V.XII 'C' engines. | 7th Jan 1935 | Box 30 \ 3 Scan050 | |
| Design status report for the P.V.XII 'C' engine, continued. | 19th Jan 1935 | Box 30 \ 3 Scan051 | |
| Report of work in hand in the Drawing Office for the Kestrel engine, listing various design modifications and their status. | 19th Jan 1935 | Box 30 \ 3 Scan052 | |
| List of design modifications and their drawing status for Kestrel and Goshawk engines. | 19th Jan 1935 | Box 30 \ 3 Scan053 | |
| Progress report on design modifications and schemes for Kestrel, Goshawk, and P.V.XII aero engines. | 19th Jan 1935 | Box 30 \ 3 Scan054 | |
| Progress report on the design and development of various aero engine components. | 19th Jan 1935 | Box 30 \ 3 Scan055 | |
| Progress report detailing modifications and schemes for various engine and chassis models. | 19th Jan 1935 | Box 30 \ 3 Scan056 | |
| Status list of engineering tasks for various chassis and engine components. | 19th Jan 1935 | Box 30 \ 3 Scan057 | |
| List of modifications and drawing updates for the 3 1/4 Litre Bentley Chassis. | 19th Jan 1935 | Box 30 \ 3 Scan058 | |
| Status report on engineering modifications for the 3.5 Litre Bentley Chassis and the Spectre 12-Cylinder Engine. | 19th Jan 1935 | Box 30 \ 3 Scan059 | |
| List of modifications and drawing issue dates for the Spectre 12-Cylinder Engine. | 19th Jan 1935 | Box 30 \ 3 Scan060 | |
| Status report on modifications and drawings for the Spectre 12-cylinder engine. | 19th Jan 1935 | Box 30 \ 3 Scan061 | |
| List of modifications and drawing status updates for the Spectre 12-Cylinder engine. | 19th Jan 1935 | Box 30 \ 3 Scan062 | |
| List of modifications and drawing issue dates for the Spectre 12-Cylinder Engine. | 19th Jan 1935 | Box 30 \ 3 Scan063 | |
| Progress report on modifications and drawings for the Spectre 12-Cylinder engine. | 19th Jan 1935 | Box 30 \ 3 Scan064 | |
| List of engineering modifications and their status for the Spectre 12-Cylinder engine. | 19th Jan 1935 | Box 30 \ 3 Scan065 | |
| Status report on drawings and designs for various Wraith chassis components. | 19th Jan 1935 | Box 30 \ 3 Scan066 | |
| Status report on various engineering schemes and modifications for the Wraith chassis and other cars. | 19th Jan 1935 | Box 30 \ 3 Scan067 | |
| Cover note for a fortnightly report detailing the progress of design work. | 21th Jan 1935 | Box 30 \ 3 Scan068 | |
| Design status report detailing development items for a Bentley chassis. | 21th Jan 1935 | Box 30 \ 3 Scan069 | |
| Design position report detailing the status of components for the 20/25 HP, Phantom II, and Spectre models. | 21th Jan 1935 | Box 30 \ 3 Scan070 | |
| Design position status report for the Spectre Chassis. | 21th Jan 1935 | Box 30 \ 3 Scan071 | |
| Design position report listing the status of various chassis and system components, including items for the Wraith Chassis. | 21th Jan 1935 | Box 30 \ 3 Scan072 | |
| Design position status report for various components of the Wraith model. | 21th Jan 1935 | Box 30 \ 3 Scan073 | |
| Design position report for the Wraith model, listing the status of various components. | 21th Jan 1935 | Box 30 \ 3 Scan074 | |
| Design position status report for single cylinder and general research projects. | 21th Jan 1935 | Box 30 \ 3 Scan075 | |
| Design position status report on single cylinder research and various engine components. | 21th Jan 1935 | Box 30 \ 3 Scan076 | |
| Design position report detailing the status of modifications for the Merlin 'C' and 'D' engines. | 21th Jan 1935 | Box 30 \ 3 Scan077 | |
| Design position report for the Merlin 'D' engine. | 4th Feb 1935 | Box 30 \ 3 Scan078 | |
| Cover sheet for a fortnightly report on design work progress. | 4th Feb 1935 | Box 30 \ 3 Scan079 | |
| Design position report detailing the status of modifications for Bentley and 20/25 HP chassis. | 4th Feb 1935 | Box 30 \ 3 Scan080 | |
| Design position report listing modifications and their status for various chassis and engine models. | 4th Feb 1935 | Box 30 \ 3 Scan081 | |
| List of design items and their current status for the Spectre Chassis. | 4th Feb 1935 | Box 30 \ 3 Scan082 | |
| Design position report detailing the status of items for the Spectre and Wraith chassis. | 4th Feb 1935 | Box 30 \ 3 Scan083 | |
| Design progress report for the Wraith Chassis, listing items and their completion status. | 4th Feb 1935 | Box 30 \ 3 Scan084 | |
| Status update on design items for the Wraith Chassis, page 6. | 4th Feb 1935 | Box 30 \ 3 Scan085 | |
| Design position report on single cylinder and general research projects. | 4th Feb 1935 | Box 30 \ 3 Scan086 | |
| Design position status report for Kestrel and Merlin engine components. | 4th Feb 1935 | Box 30 \ 3 Scan087 | |
| Design position report on the status of components for the Merlin 'C', 'D', and Vulture engines. | 18th Feb 1935 | Box 30 \ 3 Scan088 | |
| Cover note for a fortnightly progress report on design work. | 18th Feb 1935 | Box 30 \ 3 Scan089 | |
| Status report on design modifications and their progress for the Bentley chassis. | 18th Feb 1935 | Box 30 \ 3 Scan090 | |
| Design position report detailing the status of various chassis and engine components. | 18th Feb 1935 | Box 30 \ 3 Scan091 | |
| Design position report on items relating to the Spectre Chassis. | 18th Feb 1935 | Box 30 \ 3 Scan092 | |
| Status report on modifications for the Spectre Chassis. | 18th Feb 1935 | Box 30 \ 3 Scan093 | |
| Design position report for the Spectre and Wraith chassis models. | 18th Feb 1935 | Box 30 \ 3 Scan094 | |
| Design position update for various components of the Wraith Chassis. | 18th Feb 1935 | Box 30 \ 3 Scan095 | |
| Status report on single-cylinder and general research projects. | 18th Feb 1935 | Box 30 \ 3 Scan096 | |
| Design position report detailing the status of development on various engine components. | 18th Feb 1935 | Box 30 \ 3 Scan097 | |
| Design position report on Merlin 'C' and 'D' engine components. | 18th Feb 1935 | Box 30 \ 3 Scan098 | |
| Design position status report for the Merlin 'B', Vulture, and Buzzard engines. | 1st Mar 1935 | Box 30 \ 3 Scan099 | |
| Required new designs and modifications for Merlin and Kestrel engines. | 1st Mar 1935 | Box 30 \ 3 Scan100 | |
| Cover memo for a fortnightly report on the progress of design work. | 4th Mar 1935 | Box 30 \ 3 Scan101 | |
| Design position report detailing the status of modifications for the Bentley and 20/25 HP chassis. | 4th Mar 1935 | Box 30 \ 3 Scan102 | |
| Design position report detailing the status of modifications for various chassis and engine models. | 4th Mar 1935 | Box 30 \ 3 Scan103 | |
| List of design items for the Spectre chassis and their current status. | 4th Mar 1935 | Box 30 \ 3 Scan104 | |
| Design status report detailing ongoing and completed work on the Spectre chassis. | 4th Mar 1935 | Box 30 \ 3 Scan105 | |
| Design position report detailing the status of modifications for the Spectre and Wraith chassis. | 4th Mar 1935 | Box 30 \ 3 Scan106 | |
| Progress report on various single-cylinder and general research projects. | 4th Mar 1935 | Box 30 \ 3 Scan107 | |
| Design position report detailing the status of research and modifications for Kestrel and Merlin engines. | 4th Mar 1935 | Box 30 \ 3 Scan108 | |
| List detailing the design position of components for the Merlin 'D' engine. | 4th Mar 1935 | Box 30 \ 3 Scan109 | |
| Design position report detailing the status of modifications for the Vulture, P.V.XII, and Buzzard engines. | 5th Mar 1935 | Box 30 \ 3 Scan110 | |
| Design work and modifications for Merlin, Kestrel, and Goshawk aero engines. | 5th Mar 1935 | Box 30 \ 3 Scan111 | |
| Design updates for Merlin and Kestrel engines, covering oil pressure relief valves, electric turning gear, and ignition wire screening. | 5th Mar 1935 | Box 30 \ 3 Scan112 | |
| Progress report from the Drawing Office regarding the 'Kestrel' engine. | 16th Mar 1935 | Box 30 \ 3 Scan113 | |
| Progress report on design schemes and modifications for Kestrel, Goshawk, and P.V.XII aero engines. | 16th Mar 1935 | Box 30 \ 3 Scan114 | |
| List of modifications and parts for the P.V. XII, P.V.G, and 'Merlin' B aero engines. | 16th Mar 1935 | Box 30 \ 3 Scan115 | |
| List of modifications and design updates for Merlin B and C aero engines. | 16th Mar 1935 | Box 30 \ 3 Scan116 | |
| Status report on design drawings for various components of Merlin 'B', 'C', and 'D' aero engines. | 16th Mar 1935 | Box 30 \ 3 Scan117 | |
| Status report on the drawing and design modifications for the Merlin 'D' and Exe aero engines. | 16th Mar 1935 | Box 30 \ 3 Scan118 | |
| Log of drawing statuses for the 'EXE' Engine, Aero Universal S/C Test Unit, and Sleeve Valve Sgle. Cylinder Engine. | 16th Mar 1935 | Box 30 \ 3 Scan119 | |
| List of design schemes and detail drawing statuses for various engine and chassis components. | 16th Mar 1935 | Box 30 \ 3 Scan120 | |
| Progress report on drawing schemes for various chassis and engine models. | 16th Mar 1935 | Box 30 \ 3 Scan121 | |
| Status report on the design and drawing completion for various 3½ Litre Bentley Chassis components. | 16th Mar 1935 | Box 30 \ 3 Scan122 | |
| List of modifications and updates for the 3.5 Litre Bentley Chassis. | 16th Mar 1935 | Box 30 \ 3 Scan123 | |
| Engineering specification and drawing status updates for the 3½ Litre Bentley Chassis and Spectre 12-Cyl. Engine. | 16th Mar 1935 | Box 30 \ 3 Scan124 | |
| List of engineering modifications and their drawing completion status for the Spectre 12-Cylinder engine. | 16th Mar 1935 | Box 30 \ 3 Scan125 | |
| List of modifications and drawing status updates for the Spectre 12-cylinder engine. | 16th Mar 1935 | Box 30 \ 3 Scan126 | |
| Progress report on design modifications and parts for the Spectre 12-Cylinder engine. | 16th Mar 1935 | Box 30 \ 3 Scan127 | |
| Log of engineering updates and drawings for the Spectre 12-Cyl. Engine and Wraith Chassis. | 16th Mar 1935 | Box 30 \ 3 Scan128 | |
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