| Description | Date | Identifier | |
| Design position report on modifications for the Goshawk and Kestrel engines. | 1st Jun 1934 | Box 30 \ 4 Scan204 | |
| Design position report for the P.V.XII and Merlin engines. | 1st Jun 1934 | Box 30 \ 4 Scan205 | |
| Design position report detailing the status of components for the P.V.XII and Merlin engines. | 15th Jun 1934 | Box 30 \ 4 Scan206 | |
| Cover sheet for a fortnightly design work progress report. | 15th Jun 1934 | Box 30 \ 4 Scan207 | |
| Design position report detailing the status of various modifications for 20/25 HP and Bentley chassis. | 15th Jun 1934 | Box 30 \ 4 Scan208 | |
| Status report detailing work items and their completion status for the Phantom II Chassis and Spectre models. | 15th Jun 1934 | Box 30 \ 4 Scan209 | |
| Project status list for the 'Spectre' model, detailing component completion. | 15th Jun 1934 | Box 30 \ 4 Scan210 | |
| Status list of completed modifications and components for the 'SPECTRE' model. | 15th Jun 1934 | Box 30 \ 4 Scan211 | |
| Progress report listing tasks and their status for the 'Spectre' project. | 15th Jun 1934 | Box 30 \ 4 Scan212 | |
| Progress report on design and modification work for the Spectre, Wraith, Mark 'F' Tank, and Ulster Bentley models. | 15th Jun 1934 | Box 30 \ 4 Scan213 | |
| Progress report on development work for various engine components and assemblies. | 15th Jun 1934 | Box 30 \ 4 Scan214 | |
| Status report on design modifications and developments for the Goshawk, Kestrel, and Merlin aero engines. | 3rd Jul 1934 | Box 30 \ 4 Scan215 | |
| Cover note for a fortnightly report on the progress of design work. | 3rd Jul 1934 | Box 30 \ 4 Scan216 | |
| List of modifications and their completion status for 20/25 HP and Bentley chassis. | 3rd Jul 1934 | Box 30 \ 4 Scan217 | |
| Status report on modifications and work items for Bentley, Phantom II, and Spectre chassis. | 3rd Jul 1934 | Box 30 \ 4 Scan218 | |
| List of completed items and modifications for the Spectre Chassis. | 3rd Jul 1934 | Box 30 \ 4 Scan219 | |
| Status report list of modifications and components for the Spectre chassis. | 3rd Jul 1934 | Box 30 \ 4 Scan220 | |
| Status report on modifications and components for Spectre, Wraith, Phantom II, and (Ulster) Bentley chassis. | 3rd Jul 1934 | Box 30 \ 4 Scan221 | |
| List of vehicle items and their completion status. | 3rd Jul 1934 | Box 30 \ 4 Scan222 | |
| Status report on single cylinder work, general research, and the P.V.G.1. engine. | 3rd Jul 1934 | Box 30 \ 4 Scan223 | |
| Progress report on design and modification tasks for various engine types. | 3rd Jul 1934 | Box 30 \ 4 Scan224 | |
| List of completed modifications and diagrams for the Kestrel engine. | 14th Jul 1934 | Box 30 \ 4 Scan225 | |
| Report of work in hand in the Drawing Office for the 'Kestrel' engine. | 14th Jul 1934 | Box 30 \ 4 Scan226 | |
| Progress report on design changes and modifications for the 'KESTREL' engine. | 14th Jul 1934 | Box 30 \ 4 Scan227 | |
| Status update on design drawings for the Kestrel and Goshawk engines. | 14th Jul 1934 | Box 30 \ 4 Scan228 | |
| Status of design schemes and drawings for Goshawk, Kestrel, Griffon, P.V.XII, and P.V.G. aero engines. | 14th Jul 1934 | Box 30 \ 4 Scan229 | |
| Status report on designs for the P.V.G. Aero Engine, Merlin Aero Engine, and Phantom II Chassis. | 14th Jul 1934 | Box 30 \ 4 Scan230 | |
| Status report on various chassis, engine, and component modifications. | 14th Jul 1934 | Box 30 \ 4 Scan231 | |
| Status report on various design schemes and drawings for the 3½ Litre Bentley Chassis. | 14th Jul 1934 | Box 30 \ 4 Scan232 | |
| List of engineering modifications and drawing statuses for the 3½ Litre Bentley Chassis. | 14th Jul 1934 | Box 30 \ 4 Scan233 | |
| List of modifications and component updates for the 3 1/4 Litre Bentley and 20/25 HP chassis. | 14th Jul 1934 | Box 30 \ 4 Scan234 | |
| Log of engineering drawings and modifications for the 20/25 HP Chassis and Spectre 12-Cylinder Engine. | 14th Jul 1934 | Box 30 \ 4 Scan235 | |
| Log of completed and issued detail drawings for the Spectre 12-Cylinder Engine. | 14th Jul 1934 | Box 30 \ 4 Scan236 | |
| Progress report on design and drawing completion for the Spectre 12-Cylinder Engine components. | 14th Jul 1934 | Box 30 \ 4 Scan237 | |
| Drawing register page for the Spectre 12-Cylinder Engine, detailing component drawings and their status. | 14th Jul 1934 | Box 30 \ 4 Scan238 | |
| List of components and their drawing status for the Spectre 12-cylinder engine. | 14th Jul 1934 | Box 30 \ 4 Scan239 | |
| Status report on various parts and modifications for the Spectre 12-cylinder engine. | 14th Jul 1934 | Box 30 \ 4 Scan240 | |
| Status report on the design and drawings for the Spectre 12-Cylinder Engine. | 14th Jul 1934 | Box 30 \ 4 Scan241 | |
| Progress report on the design and drawing status of components for the Spectre 12-cylinder engine. | 14th Jul 1934 | Box 30 \ 4 Scan242 | |
| Status report on the drawings for the Spectre 12-Cylinder engine components. | 14th Jul 1934 | Box 30 \ 4 Scan243 | |
| List of modifications and drawing schedules for the Spectre 12-Cylinder engine. | 14th Jul 1934 | Box 30 \ 4 Scan244 | |
| List of drawing schedule updates and modifications for the Spectre 12-Cylinder engine. | 14th Jul 1934 | Box 30 \ 4 Scan245 | |
| Status report on the design and drawing progress for various vehicle components. | 14th Jul 1934 | Box 30 \ 4 Scan246 | |
| Cover note for a fortnightly progress report on design work. | 17th Jul 1934 | Box 30 \ 4 Scan247 | |
| Status report on modifications for the 20/25 HP chassis and the Bentley chassis. | 16th Jul 1934 | Box 30 \ 4 Scan248 | |
| List of modifications and their completion status for Bentley and Phantom II chassis. | 16th Jul 1934 | Box 30 \ 4 Scan249 | |
| Progress report listing various modifications and their current status, including work on the Spectre engine. | 16th Jul 1934 | Box 30 \ 4 Scan250 | |
| Progress report detailing the status of modifications for the Spectre and Wraith engines. | 16th Jul 1934 | Box 30 \ 4 Scan251 | |
| Status report on modifications for Phantom II Tank Engines and Ulster Bentley Chassis. | 16th Jul 1934 | Box 30 \ 4 Scan252 | |
| Status report on single-cylinder, general research, and Kestrel engine projects. | 16th Jul 1934 | Box 30 \ 4 Scan253 | |
| Status report on modifications for Kestrel, P.V.XII, Buzzard, and Spectre aero engines. | 16th Jul 1934 | Box 30 \ 4 Scan254 | |
| Status report on design and development items for the P.V.G.I, P.V.G.II, and Goshawk engines. | 31th Jul 1934 | Box 30 \ 4 Scan255 | |
| Cover note for a fortnightly report on the progress of design work. | 31th Jul 1934 | Box 30 \ 4 Scan256 | |
| Status report on modifications and components for the 20/25 HP and Bentley chassis. | 31th Jul 1934 | Box 30 \ 4 Scan257 | |
| Status report on engineering items for the Bentley and Phantom II chassis. | 31th Jul 1934 | Box 30 \ 4 Scan258 | |
| Status report on modifications for Phantom II and Spectre chassis. | 31th Jul 1934 | Box 30 \ 4 Scan259 | |
| Status report on development items for the Spectre and Wraith chassis. | 31th Jul 1934 | Box 30 \ 4 Scan260 | |
| Progress report detailing the status of components for the Wraith Chassis and Phantom II Tank Engines. | 31th Jul 1934 | Box 30 \ 4 Scan261 | |
| Progress report on single cylinder work and general research projects, detailing their status. | 31th Jul 1934 | Box 30 \ 4 Scan262 | |
| Status report on development items for the Kestrel and Goshawk engines. | 31th Jul 1934 | Box 30 \ 4 Scan263 | |
| Status update on the design and production of components for the Spectre and P.V.G.II engines. | 5th Sep 1934 | Box 30 \ 4 Scan264 | |
| Covering memo for a report on the progress of design work, noting the period includes the annual summer holiday. | 5th Sep 1934 | Box 30 \ 4 Scan265 | |
| Design position report listing items and their status for the 20/25 HP and Bentley chassis. | 5th Sep 1934 | Box 30 \ 4 Scan266 | |
| Design position status report listing items for the Bentley Chassis and Phantom II Chassis. | 5th Sep 1934 | Box 30 \ 4 Scan267 | |
| Design position report for the Spectre Chassis, listing various modifications and their status. | 5th Sep 1934 | Box 30 \ 4 Scan268 | |
| Design position report detailing the progress of components for the Spectre and Wraith chassis. | 5th Sep 1934 | Box 30 \ 4 Scan269 | |
| Design status report for Wraith chassis and Phantom II tank engine components. | 5th Sep 1934 | Box 30 \ 4 Scan270 | |
| Status report on single cylinder work and general research projects. | 5th Sep 1934 | Box 30 \ 4 Scan271 | |
| Status report on single-cylinder and Kestrel engine research and design projects. | 5th Sep 1934 | Box 30 \ 4 Scan272 | |
| Design position report for Kestrel, Goshawk, and P.V.G.II engine components. | 5th Sep 1934 | Box 30 \ 4 Scan273 | |
| Design update document for the P.V.G.II engine concerning modifications for auxiliary drives. | 20th Sep 1934 | Box 30 \ 4 Scan274 | |
| Cover note for a fortnightly design work progress report. | 20th Sep 1934 | Box 30 \ 4 Scan275 | |
| Status report on various design items for the 20/25 HP Chassis. | 20th Sep 1934 | Box 30 \ 4 Scan276 | |
| Design position status report for various Bentley Chassis components. | 20th Sep 1934 | Box 30 \ 4 Scan277 | |
| Design status report on items for Bentley, Phantom II, and Spectre chassis. | 20th Sep 1934 | Box 30 \ 4 Scan278 | |
| Status update on design modifications for the Spectre Chassis. | 20th Sep 1934 | Box 30 \ 4 Scan279 | |
| Status report on design modifications and investigations for the Spectre and Wraith chassis. | 20th Sep 1934 | Box 30 \ 4 Scan280 | |
| Design status report for various components of the Wraith chassis. | 20th Sep 1934 | Box 30 \ 4 Scan281 | |
| Design position report listing completed items for Phantom II tank engines. | 20th Sep 1934 | Box 30 \ 4 Scan282 | |
| Design position report on single-cylinder work and general research, listing the status of various engine components and diagrams. | 20th Sep 1934 | Box 30 \ 4 Scan283 | |
| Progress report on single cylinder research and Kestrel engine development. | 20th Sep 1934 | Box 30 \ 4 Scan284 | |
| Design status report on modifications for Kestrel and Goshawk engines. | 20th Sep 1934 | Box 30 \ 4 Scan285 | |
| Design status report for the P.V.G.II and Griffon engines. | 4th Oct 1934 | Box 30 \ 4 Scan286 | |
| Drawing Office work-in-hand report for the Kestrel engine. | 4th Oct 1934 | Box 30 \ 4 Scan287 | |
| Progress report on modifications and drawings for the 'Kestrel' engine. | 4th Oct 1934 | Box 30 \ 4 Scan288 | |
| Log of design modifications and drawing issue dates for 'Goshawk' and 'Kestrel' engines. | 4th Oct 1934 | Box 30 \ 4 Scan289 | |
| Status report on design and drawing completion for Kestrel, Goshawk, Griffon, P.V. XII, and P.V.G. aero engines. | 4th Oct 1934 | Box 30 \ 4 Scan290 | |
| Progress report on design modifications and drawings for P.V.G. Aero Engines and Phantom II Chassis. | 4th Oct 1934 | Box 30 \ 4 Scan291 | |
| List of drawing completions for Phantom 11 engine and tank components. | 4th Oct 1934 | Box 30 \ 4 Scan292 | |
| Progress report on design and drawing tasks for Phantom II and 3.5 Litre Bentley chassis components. | 4th Oct 1934 | Box 30 \ 4 Scan293 | |
| List of engineering changes and drawing statuses for the 3½ Litre Bentley Chassis. | 4th Oct 1934 | Box 30 \ 4 Scan294 | |
| List of modifications and drawing completion statuses for the 3 1/2 Litre Bentley Chassis. | 4th Oct 1934 | Box 30 \ 4 Scan295 | |
| List of modifications and updates regarding parts for the 20/25 HP Chassis. | 4th Oct 1934 | Box 30 \ 4 Scan296 | |
| List of modifications and new parts for 20/25 HP, 40/50 HP, and Bentley chassis. | 4th Oct 1934 | Box 30 \ 4 Scan297 | |
| List of detail drawings completed and issued for the Spectre 12-Cylinder engine. | 4th Oct 1934 | Box 30 \ 4 Scan298 | |
| List of drawing schedules and modifications for the Spectre 12-Cylinder engine. | 4th Oct 1934 | Box 30 \ 4 Scan299 | |
| Log of engineering jobs and drawing completion dates for the Spectre 12-cylinder engine and other chassis components. | 4th Oct 1934 | Box 30 \ 4 Scan300 | |
| List of design schedules and modifications for the Spectre 12-cylinder engine. | 4th Oct 1934 | Box 30 \ 4 Scan301 | |
| Status report on engineering modifications for the Spectre engine, Wraith chassis, and general car models. | 4th Oct 1934 | Box 30 \ 4 Scan302 | |
| List of patent drawings for thermostats and an update on the 'Buzzard' aero engine. | 4th Oct 1934 | Box 30 \ 4 Scan303 | |
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