| Description | Date | Identifier | |
| To Mr. Lappin confirming a mechanic, Bowering, will be arriving by train with a petrol pump. | 20th Dec 1933 | Box 107 \ 1 scan0197 | |
| Replacement of a petrol pump unit for chassis GLN-60. | 20th Dec 1933 | Box 107 \ 1 scan0198 | |
| Order for a new S.U. petrol pump for a Bentley chassis. | 20th Dec 1933 | Box 107 \ 1 scan0199 | |
| Providing feedback on modifications to a 20-G4 vehicle's clutch, air silencer, and brakes after testing in traffic. | 1st Jan 1934 | Box 107 \ 1 scan0200 | |
| Test status and despatch timeline for the 20/25HP Chassis GUB-5. | 1st Jan 1934 | Box 107 \ 1 scan0201 | |
| Fitting issue with a modified hand brake lever on chassis GUB-5, the 'Wor's Car'. | 22th Jan 1934 | Box 107 \ 1 scan0202 | |
| Modifications to a car's body and fuel tank to accommodate a new concealed luggage grid. | 31th Jan 1934 | Box 107 \ 1 scan0203 | |
| Requesting to fit a grid and tank, explaining a delay in the job due to awaiting sales approval for expenditure on body modifications. | 31th Jan 1934 | Box 107 \ 1 scan0204 | |
| Instructions for a tank. | 2nd Feb 1934 | Box 107 \ 1 scan0205 | |
| Requesting the manufacture of a new petrol tank to accommodate a concealed luggage grid on car GUB-5. | 2nd Feb 1934 | Box 107 \ 1 scan0206 | |
| Timeline for detailed drawings and manufacturing of a concealed luggage grid for car GUB-5. | 2nd Feb 1934 | Box 107 \ 1 scan0207 | |
| Noisy tappet caused by a sticking valve and loose bronze valve seat inserts. | 12th Feb 1934 | Box 107 \ 1 scan0208 | |
| Performance and issues report for car GLN-60 after 5210 miles, noting engine noise and fuel consumption. | 27th Feb 1934 | Box 107 \ 1 scan0209 | |
| Transfer of experimental vacuum-assisted clutch and throttle parts from car 20-G-1V to car GAW-3. | 21th Mar 1934 | Box 107 \ 1 scan0210 | |
| Transferring experimental parts from one car to another, specifically concerning GAW-3 and 20-G-IV. | 22th Mar 1934 | Box 107 \ 1 scan0211 | |
| Confirming a telephone conversation about the handover of chassis 20-G-4 and the transfer of its experimental parts to car GAW-3. | 1st Apr 1934 | Box 107 \ 1 scan0212 | |
| Requesting modifications to a car, including fitting Terraplane engine mountings and removing parts for a vacuum-assisted clutch. | 16th Apr 1934 | Box 107 \ 1 scan0213 | |
| Query about when special clutch, throttle, and Servo parts are being sent for car GAW-3. | 19th Apr 1934 | Box 107 \ 1 scan0214 | |
| Request to despatch clutch parts and an air valve from Mr. Cowen's car to Cricklewood for fitting to another vehicle. | 20th Apr 1934 | Box 107 \ 1 scan0215 | |
| Despatching Air Valve and Clutch parts from chassis 20-G-IV to Cricklewood, noting the servo will be sent later. | 20th Apr 1934 | Box 107 \ 1 scan0216 | |
| Improvements and comparisons of the GUB-5 car with the Essex Terraplane, focusing on a new rubber engine mounting. | 25th Apr 1934 | Box 107 \ 1 scan0217 | |
| Five requested modifications for a 20/25 Car. | 26th Apr 1934 | Box 107 \ 1 scan0218 | |
| Fitting of a new expanding carburetter to a 20/25 model car. | 4th May 1934 | Box 107 \ 1 scan0219 | |
| Delayed use of car GAW-3 for testing a new carburetter. | 5th May 1934 | Box 107 \ 1 scan0220 | |
| The unavailability of car GAW-3 for testing a new carburettor. | 9th May 1934 | Box 107 \ 1 scan0221 | |
| The performance of vehicle unit GLN-60 after completing over 10,000 miles. | 19th May 1934 | Box 107 \ 1 scan0222 | |
| Driver's feedback report on a car's performance, detailing both improvements and remaining issues. | 23th May 1934 | Box 107 \ 1 scan0223 | |
| Instructions to replace Aerolite pistons with a standard set and fit a Textolite water pump pinion to car GLN-60. | 24th May 1934 | Box 107 \ 1 scan0224 | |
| Steering shock fault on a 20/25 car and exploring fitting parts from Terraplane and La Salle vehicles. | 31th May 1934 | Box 107 \ 1 scan0225 | |
| Petrol consumption tests on a new carburetter. | 6th Jun 1934 | Box 107 \ 1 scan0226 | |
| Request for a blueprint or general arrangement drawing for an experimental clutch damper fitment. | 14th Aug 1934 | Box 107 \ 1 scan0227 | |
| Dispatch of an air valve from chassis GAW-3, replaced by a suction chamber from chassis 20-G-IV. | 10th Sep 1934 | Box 107 \ 1 scan0228 | |
| Dispatch of an air valve removed from chassis GAW-3 and replaced with a suction chamber from chassis 20-G-IV. | 10th Sep 1934 | Box 107 \ 1 scan0229 | |
| Stuck Special Air Valve on car GAW-3, which caused power loss. | 18th Sep 1934 | Box 107 \ 1 scan0230 | |
| The replacement of a standard valve with a special valve on chassis GAW-3. | 21th Sep 1934 | Box 107 \ 1 scan0231 | |
| Modifications required for a Wor's 20/25 HP Car to standardize parts. | 24th Oct 1934 | Box 107 \ 1 scan0232 | |
| Removal of special features from car GLN-60 before its sale. | 9th Nov 1934 | Box 107 \ 1 scan0233 | |
| Modifications to car GLN-60, which has experimental engine parts, to make it suitable for sale. | 12th Nov 1934 | Box 107 \ 1 scan0234 | |
| Private letter from Lp. to Hs. proposing to fit a redundant 'gutty' 25 HP engine into car GLN-60. | 13th Nov 1934 | Box 107 \ 1 scan0235 | |
| Letter agreeing to proposals for engine alterations on a chassis and requesting a cost and time estimate for the work. | 13th Nov 1934 | Box 107 \ 1 scan0236 | |
| Response regarding a request for a 'gutty' 25 HP engine and a proposal to modify a GLN-60 unit for sale. | 15th Nov 1934 | Box 107 \ 1 scan0237 | |
| Non-standard parts on chassis GLN-60 and required changes. | 16th Nov 1934 | Box 107 \ 1 scan0238 | |
| Necessary specification changes to the camshaft and timing gears for chassis GLN-60. | 16th Nov 1934 | Box 107 \ 1 scan0239 | |
| Ordering and fitting a second Marles Type L.7 Steering Gear to chassis GUB-V, and manufacturing additional levers. | 19th Nov 1934 | Box 107 \ 1 scan0240 | |
| Testing a new clutch, suggesting using company cars rather than demonstration or Trials cars. | 20th Nov 1934 | Box 107 \ 1 scan0241 | |
| New clutch fitment, steering adjustments, and the reallocation of hydraulic jacks and a bumper bar. | 22th Nov 1934 | Box 107 \ 1 scan0242 | |
| The chassis GLG-5, requesting the fitting of an improved clutch and a lower steering ratio. | 23th Nov 1934 | Box 107 \ 1 scan0243 | |
| Confirming preparation of an altered steering ratio and improved clutch for chassis GLG-5. | 26th Nov 1934 | Box 107 \ 1 scan0244 | |
| The fitting of Jackall jacks and a stabilising bumper to an experimental coachwork car, GZU-24. | 26th Nov 1934 | Box 107 \ 1 scan0245 | |
| Request to prepare and fit an improved 20/25 HP flywheel and clutch to trial cars for London traffic testing. | 28th Nov 1934 | Box 107 \ 1 scan0246 | |
| Modifications and observations for experimental car GZU-24, including a new clutch and bumper bars. | 26th Nov 1934 | Box 107 \ 1 scan0247 | |
| Testing of jacks and a harmonic stabilising bumper on a 20/25 HP Car, chassis GZU-24. | 29th Nov 1934 | Box 107 \ 1 scan0248 | |
| Testing jacks and a stabilising bumper on a 20/25 HP car, No. GZU-24. | 30th Nov 1934 | Box 107 \ 1 scan0249 | |
| Return of a bumper bar removed from the GZU-24 experimental car. | 7th Dec 1934 | Box 107 \ 1 scan0250 | |
| The return of a bumper bar and the dispatch of fittings for chassis GZU 24. | 8th Dec 1934 | Box 107 \ 1 scan0251 | |
| High compression head for a 20/25 Continental Trials Car. | 12th Dec 1934 | Box 107 \ 1 scan0252 | |
| Inquiry regarding the expected dispatch of parts for car GAW-3, referencing GZU-24. | 31th Dec 1934 | Box 107 \ 1 scan0253 | |
| Note about using up all available forgings for the new type flywheel and clutch, with a 3-4 week delay for new stock. | 3rd Jan 1935 | Box 107 \ 1 scan0254 | |
| Requesting the fitting of a new type of clutch to Wor's car, detailing the necessary modifications. | 3rd Jan 1935 | Box 107 \ 1 scan0255 | |
| Delay in new flywheel and clutch parts, and an inquiry about the readiness of parts for a steering experiment. | 3rd Jan 1935 | Box 107 \ 1 scan0256 | |
| Communication regarding the delayed readiness of steering pieces for car GZU-24, to be sent with the flywheel. | 8th Jan 1935 | Box 107 \ 1 scan0257 | |
| Request to supply one 25 HP carburetter complete for car GUB-5. | 11th Jan 1935 | Box 107 \ 1 scan0258 | |
| Road test and initial impressions of the Marles Type Steering system on a car. | 17th Jan 1935 | Box 107 \ 1 scan0259 | |
| Request to try fitting a side steering tube to Wor's car, GUB-5. | 18th Jan 1935 | Box 107 \ 1 scan0260 | |
| Seeking feedback on Marles Type Steering and proposing a conversion. | 30th Jan 1935 | Box 107 \ 1 scan0261 | |
| Personal review and initial feedback on the Marles Type Steering system. | 1st Feb 1935 | Box 107 \ 1 scan0262 | |
| Lower ratio of Marles Type Steering on a car and plans for comparison. | 2nd Feb 1935 | Box 107 \ 1 scan0263 | |
| Flywheel and shorter pendulum lever for Cowen's Car, chassis GZU-24. | 13th Feb 1935 | Box 107 \ 1 scan0264 | |
| Arranging the shipment of a new clutch, flywheel, and shorter pendulum lever to Cricklewood. | 13th Feb 1935 | Box 107 \ 1 scan0265 | |
| Confirming the dispatch of a latest type clutch, flywheel and shorter pendulum lever to Cricklewood. | 14th Feb 1935 | Box 107 \ 1 scan0266 | |
| Despatch of Ferodo clutch linings for car GZU24 to the Cricklewood Depot. | 2nd Mar 1935 | Box 107 \ 1 scan0267 | |
| Steering improvements and exhaust issues for the GAE-20 Trials Car. | 21th Mar 1935 | Box 107 \ 1 scan0268 | |
| The steering effort on car GAE-20 and proposing a modification. | 21th Mar 1935 | Box 107 \ 1 scan0269 | |
| Excessive play and an annoying rattle from the exhaust pipe sliding joint on the GAE-20 Trials Car. | 22th Mar 1935 | Box 107 \ 1 scan0270 | |
| Requesting rectification of a fault on Trials Car GAE-20. | 22th Mar 1935 | Box 107 \ 1 scan0271 | |
| Trial and comparison of cars with chassis numbers GAE-19 and GAE-20. | 22th Mar 1935 | Box 107 \ 1 scan0272 | |
| Arranging for experimental body insulation work on a car with chassis number GAE-20. | 25th Mar 1935 | Box 107 \ 1 scan0273 | |
| Complaint regarding poor brakes and a transmission rattle on a new 20/25 saloon car. | 1st Apr 1935 | Box 107 \ 1 scan0274 | |
| Arrival and investigation of car GSF-4 in Derby. | 4th Apr 1935 | Box 107 \ 1 scan0275 | |
| 20/25HP Trials Car (GSF-4) returned for inefficient brakes and a second gear rattle. | 5th Apr 1935 | Box 107 \ 1 scan0276 | |
| Brake and transmission issues on chassis GSF-4, proposing modifications. | 5th Apr 1935 | Box 107 \ 1 scan0277 | |
| Oil leakage issue with the axle pivot on the 20/25 model and recommending further tests. | 11th Apr 1935 | Box 107 \ 1 scan0278 | |
| Potential improvements to the 20/25 chassis steering and back axle. | 11th Apr 1935 | Box 107 \ 1 scan0279 | |
| Note on reducing coachwork noise with felt lining and addressing a gearbox rattle issue. | 11th Apr 1935 | Box 107 \ 1 scan0280 | |
| Improvements to a car's steering due to a reduced cross steering tube poundage and a shorter pendulum lever. | 11th Apr 1935 | Box 107 \ 1 scan0281 | |
| Oil leak from the steering pivot on a 20/25 HP trials car and a subsequent modification. | 2nd Apr 1935 | Box 107 \ 1 scan0282 | |
| Oil leak from the steering pivot on a 20/25HP trials car, GSF-4. | 9th Apr 1935 | Box 107 \ 1 scan0283 | |
| Steering feel on a 20/25 model, requesting a shorter pendulum lever for testing. | 15th Apr 1935 | Box 107 \ 1 scan0284 | |
| Feedback and issues with a chassis after a 650-mile test drive, focusing on brakes, steering, and fuel consumption. | 25th Apr 1935 | Box 107 \ 1 scan0285 | |
| Customer complaints about reduced petrol consumption with a new carburetter. | 25th Apr 1935 | Box 107 \ 1 scan0286 | |
| Request to dispatch an experimental 25 HP Pendulum lever to Cricklewood for fitting to Mr. Sidgreaves' car. | 26th Apr 1935 | Box 107 \ 1 scan0287 | |
| Dispatching a short type pendulum lever for a 25 HP car and a potential fitting issue. | 26th Apr 1935 | Box 107 \ 1 scan0288 | |
| Responding to feedback on a new 20/25 HP chassis, addressing brake performance, oil leakage, and proposed improvements. | 29th Apr 1935 | Box 107 \ 1 scan0289 | |
| Modifications including 35° angle cams, servo components, steering, and petrol consumption for a 20/25 model. | 29th Apr 1935 | Box 107 \ 1 scan0290 | |
| Carburetter modification, brake thumping, and steering 'joggling' issues. | 29th Apr 1935 | Box 107 \ 1 scan0291 | |
| Car modifications, specifically a special cam, and petrol consumption results. | 1st May 1935 | Box 107 \ 1 scan0292 | |
| Fitting a special cam and other modifications to car GSF-4, and investigating petrol consumption. | 2nd May 1935 | Box 107 \ 1 scan0293 | |
| Improvements fitted to a new 20/25 HP car, model GLG.5, and discussing its performance. | 7th May 1935 | Box 107 \ 1 scan0294 | |
| Performance and issues of a 20/25 HP car after a test drive. | 8th May 1935 | Box 107 \ 1 scan0295 | |
| Customer feedback on reduced petrol mileage with a new carburetter. | 1st May 1935 | Box 107 \ 1 scan0296 | |
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