| Description | Date | Identifier | |
| Progress report listing design modifications and their completion status for the 'SPECTRE' project. | 16th Mar 1935 | Box 30 \ 3 Scan129 | |
| Status list of drawings and modifications for the Wraith Chassis components. | 16th Mar 1935 | Box 30 \ 3 Scan130 | |
| Progress log detailing drawing status for various chassis and engine components. | 16th Mar 1935 | Box 30 \ 3 Scan131 | |
| List of design modifications for Vulture, Merlin, and P.V.XII aero engines. | 16th Mar 1935 | Box 30 \ 3 Scan132 | |
| Cover memo for a fortnightly report on the progress of design work. | 18th Mar 1935 | Box 30 \ 3 Scan133 | |
| Design status report on various items for the Bentley chassis. | 18th Mar 1935 | Box 30 \ 3 Scan134 | |
| Design position report detailing the status of modifications for the 20/25 HP Chassis, Phantom II Tank Engines, and Spectre Chassis. | 18th Mar 1935 | Box 30 \ 3 Scan135 | |
| Design position report for the Spectre chassis, listing items and their completion status. | 18th Mar 1935 | Box 30 \ 3 Scan136 | |
| Design position report detailing the status of modifications for the Spectre Chassis. | 18th Mar 1935 | Box 30 \ 3 Scan137 | |
| Design progress report detailing the status of components for the Spectre and Wraith chassis. | 18th Mar 1935 | Box 30 \ 3 Scan138 | |
| Status update list of design items for the Wraith Chassis. | 18th Mar 1935 | Box 30 \ 3 Scan139 | |
| Status report on single cylinder and general research projects. | 18th Mar 1935 | Box 30 \ 3 Scan140 | |
| Design position report detailing the status of research and development for P.V.XII, Kestrel, and Merlin 'B' engines. | 18th Mar 1935 | Box 30 \ 3 Scan141 | |
| Design position report detailing modifications and their status for Merlin 'B', 'C', and 'D' engines. | 18th Mar 1935 | Box 30 \ 3 Scan142 | |
| Design position report detailing the status of components for the Merlin 'D', Buzzard, and Goshawk 'A' & 'B' engines. | 3rd Apr 1935 | Box 30 \ 3 Scan143 | |
| Covering memo for a fortnightly report on the progress of design work. | 3rd Apr 1935 | Box 30 \ 3 Scan144 | |
| Design position report listing the status of various components for the Bentley and 20/25 HP chassis. | 3rd Apr 1935 | Box 30 \ 3 Scan145 | |
| Design position report detailing the status of modifications for various chassis and engines. | 3rd Apr 1935 | Box 30 \ 3 Scan146 | |
| Design status report for the Spectre Chassis, listing development items and their progress. | 3rd Apr 1935 | Box 30 \ 3 Scan147 | |
| List of design modifications and their status for the Spectre chassis. | 3rd Apr 1935 | Box 30 \ 3 Scan148 | |
| Design position report detailing the status of modifications for the Spectre and Wraith chassis. | 3rd Apr 1935 | Box 30 \ 3 Scan149 | |
| Status report on design items for the Wraith chassis, listing their current position. | 3rd Apr 1935 | Box 30 \ 3 Scan150 | |
| Status report on single cylinder and general research projects and their design position. | 3rd Apr 1935 | Box 30 \ 3 Scan151 | |
| Design position report on modifications for Kestrel and Merlin 'C' engines. | 17th Apr 1935 | Box 30 \ 3 Scan152 | |
| Cover note for a fortnightly report on the progress of design work. | 17th Apr 1935 | Box 30 \ 3 Scan153 | |
| Design position report listing the status of modifications for Bentley and 20/25 HP chassis. | 17th Apr 1935 | Box 30 \ 3 Scan154 | |
| Design position report detailing modifications and their statuses for the Phantom II engine and Spectre chassis. | 17th Apr 1935 | Box 30 \ 3 Scan155 | |
| Design position report listing modifications and their completion status for the Spectre Chassis. | 17th Apr 1935 | Box 30 \ 3 Scan156 | |
| Design position report detailing the status of items for the Spectre and Wraith chassis. | 17th Apr 1935 | Box 30 \ 3 Scan157 | |
| Design position status report for the Wraith chassis, detailing completed and in-progress items. | 17th Apr 1935 | Box 30 \ 3 Scan158 | |
| Status report on single cylinder and general research projects. | 17th Apr 1935 | Box 30 \ 3 Scan159 | |
| Design position report detailing modifications and their statuses for Kestrel and Merlin 'C' engines. | 17th Apr 1935 | Box 30 \ 3 Scan160 | |
| Design position report detailing the status of modifications for Merlin C.1, C.II, and D engines. | 17th Apr 1935 | Box 30 \ 3 Scan161 | |
| Design position report on the Buzzard and Goshawk 'B' engines. | 17th Apr 1935 | Box 30 \ 3 Scan162 | |
| Cover note for a fortnightly report on the progress of design work. | 17th Apr 1935 | Box 30 \ 3 Scan163 | |
| Design position status report for items related to the Bentley Chassis. | 17th Apr 1935 | Box 30 \ 3 Scan164 | |
| Design position report detailing the status of modifications for various chassis and engine models. | 17th Apr 1935 | Box 30 \ 3 Scan165 | |
| List of design modifications and their current status for the Spectre Chassis. | 17th Apr 1935 | Box 30 \ 3 Scan166 | |
| Design position report detailing modifications and their status for the Spectre and Wraith chassis. | 17th Apr 1935 | Box 30 \ 3 Scan167 | |
| Status update list for design items related to the Wraith chassis. | 17th Apr 1935 | Box 30 \ 3 Scan168 | |
| Design position report detailing the status of various engine research projects. | 17th Apr 1935 | Box 30 \ 3 Scan169 | |
| List of modifications and their status for the Merlin 'C' engine. | 17th Apr 1935 | Box 30 \ 3 Scan170 | |
| Design position report detailing the status of modifications for Merlin, Buzzard, and Goshawk aero engines. | 17th Apr 1935 | Box 30 \ 3 Scan171 | |
| The application of Hamilton V.P. airscrews to the Goshawk 'A' engine. | 3rd May 1935 | Box 30 \ 3 Scan172 | |
| Cover note for a fortnightly report on the progress of design work. | 3rd May 1935 | Box 30 \ 3 Scan173 | |
| Status report on design modifications for Bentley and 20/25 HP chassis, listing items and their completion status. | 3rd May 1935 | Box 30 \ 3 Scan174 | |
| Design position report detailing modifications for various chassis and engines. | 3rd May 1935 | Box 30 \ 3 Scan175 | |
| Design position report detailing the status of modifications for the Spectre chassis. | 3rd May 1935 | Box 30 \ 3 Scan176 | |
| Design progress report listing the status of components for the Spectre and Wraith chassis. | 3rd May 1935 | Box 30 \ 3 Scan177 | |
| Status report on design items for the Wraith chassis. | 3rd May 1935 | Box 30 \ 3 Scan178 | |
| Design position report detailing the status of single cylinder and general research projects. | 3rd May 1935 | Box 30 \ 3 Scan179 | |
| Status report on design modifications for Kestrel and Merlin engines. | 3rd May 1935 | Box 30 \ 3 Scan180 | |
| Design position report detailing the status of components for the Merlin, Buzzard, and Goshawk engines. | 3rd May 1935 | Box 30 \ 3 Scan181 | |
| Design position report detailing the status of modifications for Merlin and Buzzard engines. | 3rd May 1935 | Box 30 \ 3 Scan182 | |
| Design position report detailing modifications and status for the Goshawk 'A' and 'B' engines. | 3rd Jun 1935 | Box 30 \ 3 Scan183 | |
| Cover note for a fortnightly report on the progress of design work. | 3rd Jun 1935 | Box 30 \ 3 Scan184 | |
| Design position report for Bentley and 20/25 HP chassis modifications. | 3rd Jun 1935 | Box 30 \ 3 Scan185 | |
| Design position report detailing the status of modifications for 20/25 HP, Phantom II, and Spectre chassis and engines. | 3rd Jun 1935 | Box 30 \ 3 Scan186 | |
| Design position report detailing modifications and progress for the Spectre Chassis. | 3rd Jun 1935 | Box 30 \ 3 Scan187 | |
| Design position report listing modifications and their status for the Spectre Chassis. | 3rd Jun 1935 | Box 30 \ 3 Scan188 | |
| Design position report detailing the status of various components for the Spectre and Wraith chassis. | 3rd Jun 1935 | Box 30 \ 3 Scan189 | |
| Status report on single cylinder and general engine research projects, listing items and their completion status. | 3rd Jun 1935 | Box 30 \ 3 Scan190 | |
| Design position report detailing the status of modifications for Kestrel and Merlin 'C.1' engines. | 3rd Jun 1935 | Box 30 \ 3 Scan191 | |
| List of modifications and their completion status for the Merlin 'C.1' and 'C.II' engines. | 3rd Jun 1935 | Box 30 \ 3 Scan192 | |
| Design position report detailing the status of various engine components for the Merlin 'D', Goshawk 'B', and Liquid Cooled Exe engines. | 12th Jun 1935 | Box 30 \ 3 Scan193 | |
| Aero engine work in hand report for the Kestrel, Goshawk, and Merlin C engines. | 12th Jun 1935 | Box 30 \ 3 Scan194 | |
| Drawing office work for Kestrel and Goshawk aero engines. | 12th Jun 1935 | Box 30 \ 3 Scan195 | |
| Log of design modifications and drawing issues for various aero engines. | 12th Jun 1935 | Box 30 \ 3 Scan196 | |
| List of completed and issued detail drawings for the Merlin C Aero Engine. | 12th Jun 1935 | Box 30 \ 3 Scan197 | |
| List of design updates and drawing statuses for the Merlin C aero engine. | 12th Jun 1935 | Box 30 \ 3 Scan198 | |
| List of design modifications and drawing updates for the Merlin 'C' aero engine. | 12th Jun 1935 | Box 30 \ 3 Scan199 | |
| List of design updates and issued drawings for the Merlin 'B' and 'C' aero engines. | 12th Jun 1935 | Box 30 \ 3 Scan200 | |
| Progress report on the design and drawing status for Merlin and Sleeve Valve aero engine components. | 12th Jun 1935 | Box 30 \ 3 Scan201 | |
| Design position report for the 'Spectre' project, listing component modifications and their completion status. | 8th Aug 1935 | Box 30 \ 3 Scan202 | |
| Design position report listing development items for the Wraith Chassis. | 8th Aug 1935 | Box 30 \ 3 Scan203 | |
| Status report on single-cylinder and general aero engine research items. | 8th Aug 1935 | Box 30 \ 3 Scan204 | |
| Status report on single cylinder and general research projects, including work on Exe and Merlin engines. | 8th Aug 1935 | Box 30 \ 3 Scan205 | |
| Progress report on engine research and development tasks for Kestrel and Merlin engines. | 8th Aug 1935 | Box 30 \ 3 Scan206 | |
| Design position report listing modifications and their completion status for the Merlin C.II engine. | 3rd Aug 1935 | Box 30 \ 3 Scan207 | |
| Design status report for Merlin C.II and Goshawk 'B' engine components. | 8th Aug 1935 | Box 30 \ 3 Scan208 | |
| Design position report for Goshawk 'B' and Liquid Cooled Exe engine components. | 6th Jul 1935 | Box 30 \ 3 Scan209 | |
| Cover note for a fortnightly report on the progress of design work. | 23th Aug 1935 | Box 30 \ 3 Scan210 | |
| Status report on design items for the Bentley and 20/25 HP chassis. | 16th Aug 1935 | Box 30 \ 3 Scan211 | |
| Design position report detailing the status of various engine and chassis components. | 16th Aug 1935 | Box 30 \ 3 Scan212 | |
| Design position report for the Spectre Chassis, detailing modifications and their completion status. | 22th Aug 1935 | Box 30 \ 3 Scan213 | |
| List of modifications and their completion status for the Spectre Chassis. | 21th Aug 1935 | Box 30 \ 3 Scan214 | |
| Design position report for Spectre and Wraith chassis components. | 16th Aug 1935 | Box 30 \ 3 Scan215 | |
| Design position report on the Wraith Chassis, focusing on the front suspension and revised clutch. | 16th Aug 1935 | Box 30 \ 3 Scan216 | |
| Status report on single-cylinder and general engine research projects. | 16th Aug 1935 | Box 30 \ 3 Scan217 | |
| Design position report detailing the status of research and modifications for single cylinder, Kestrel, and Merlin 'C' engines. | 20th Aug 1935 | Box 30 \ 3 Scan218 | |
| Design position report for the Merlin 'C' engine, listing various components and their completion status. | 21th Aug 1935 | Box 30 \ 3 Scan219 | |
| Status update on the design position of various Merlin 'C' engine components. | 19th Aug 1935 | Box 30 \ 3 Scan220 | |
| Cover note for a fortnightly report detailing the progress of design work. | 6th Sep 1935 | Box 30 \ 3 Scan221 | |
| Design position report for various Bentley chassis components. | 31th Aug 1935 | Box 30 \ 3 Scan222 | |
| Design position report listing the status of modifications for various chassis and engine models. | 4th Sep 1935 | Box 30 \ 3 Scan223 | |
| Progress report listing design modifications and their status for the 'SPECTRE' project. | 4th Sep 1935 | Box 30 \ 3 Scan224 | |
| Design position report detailing the status of development items for the Spectre and Wraith chassis. | 4th Sep 1935 | Box 30 \ 3 Scan225 | |
| Status report on the design progress of various Wraith chassis components. | 5th Sep 1935 | Box 30 \ 4 Scan001 | |
| Progress report on single cylinder and general engine research projects, listing items and their status. | 5th Sep 1935 | Box 30 \ 4 Scan002 | |
| Progress report on single cylinder and general research items, including work on Aero Universal, Kestrel, P.V.XII, P.V.G, and Exe engines. | 5th Sep 1935 | Box 30 \ 4 Scan003 | |
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