| Description | Date | Identifier | |
| Chasing a reply regarding charges for chassis GNK-93 to finalise October figures. | 2nd Nov 1927 | Box 47 \ 5 Scan159 | |
| Badly corroded pieces found on a newly delivered 20 HP car, chassis GNK-93. | 11th Nov 1927 | Box 47 \ 5 Scan160 | |
| The 20 HP car for Mr. Geoffrey Smith. | 11th Nov 1927 | Box 47 \ 5 Scan161 | |
| Cover letter for the quarterly complaints report concerning the New Phantom and Late 20 HP chassis. | 11th Nov 1927 | Box 47 \ 5 Scan162 | |
| Quarterly complaints report for the 40/50 Phantom model for the quarter ending in September 1927. | 30th Sep 1927 | Box 47 \ 5 Scan163 | |
| Summary report on vehicle complaints and remedial actions, detailing issues and car counts. | 30th Sep 1927 | Box 47 \ 5 Scan164 | |
| Summary table of vehicle complaints and remarks on their resolution. | 30th Sep 1927 | Box 47 \ 5 Scan165 | |
| Summary table of reported vehicle complaints, car counts, and remarks on fixes. | 30th Sep 1927 | Box 47 \ 5 Scan166 | |
| Summary of vehicle complaints regarding valve springs and exhaust cut-outs, with corresponding remarks. | 28th Nov 1927 | Box 47 \ 5 Scan167 | |
| Criticisms from Lieut. Colonel Paddon regarding a 20 HP Chassis, number GRJ-29. | 28th Nov 1927 | Box 47 \ 5 Scan168 | |
| Responding to a compiled list of the worst vehicle features and faults. | 28th Nov 1927 | Box 47 \ 5 Scan169 | |
| List of numbered responses to design issues, continued from a previous page and for the 20 HP model. | 23th Dec 1927 | Box 47 \ 5 Scan170 | |
| Fitting stiffer springs to Herr Otto Schindler's car, noting improved controllability but reduced rear seat comfort. | 23th Dec 1927 | Box 47 \ 5 Scan171 | |
| Fitting stiffer springs to chassis GAJ-37 for Director Schindler. | 6th Jan 1928 | Box 47 \ 5 Scan172 | |
| The springing issues on chassis GAJ-37, discussing recommendations for stiffer springs and payment liability. | 9th Jan 1928 | Box 47 \ 5 Scan173 | |
| Relaying a customer's disappointment regarding the unavailability of smaller wheels for his new 20 hp car. | 10th Jan 1928 | Box 47 \ 5 Scan174 | |
| Unsuitability of fitting 19' wheels to a 20 HP chassis for Mr. Geoffrey Smith. | 11th Jan 1928 | Box 47 \ 5 Scan175 | |
| The failure of a New Departure type Ball Bearing from the bevel pinion of chassis GZK-8. | 3rd Feb 1928 | Box 47 \ 5 Scan176 | |
| Faults found on Chassis No. GXL-38, including a failing oil gauge and a loose spare wheel. | 21th Feb 1928 | Box 47 \ 5 Scan177 | |
| Quarterly complaints report for the 20 HP model, detailing issues and proposed remedies. | 9th Jun 1928 | Box 47 \ 5 Scan178 | |
| Summary of vehicle complaints, number of affected cars, and engineering remarks on fixes. | 4th May 1928 | Box 47 \ 5 Scan179 | |
| Summary table of vehicle complaints, the number of cars affected, and the corresponding remedial actions or design status. | 4th May 1928 | Box 47 \ 5 Scan180 | |
| Responding to quarterly complaints about carburetter flooding, noisy tappets, and noisy engine gears. | 12th Jun 1928 | Box 47 \ 5 Scan181 | |
| Quarterly complaints report for the 20 HP model for the period ending 30th June 1928. | 30th Jun 1928 | Box 47 \ 5 Scan182 | |
| Summary table of vehicle complaints, fault counts, and remarks on corrective actions. | 30th Jun 1928 | Box 47 \ 5 Scan183 | |
| Summary table of vehicle complaints by car series, with totals and remarks on actions taken. | 20th Jul 1928 | Box 47 \ 5 Scan184 | |
| 'firing in the silencer' issue on chassis GRK-23, attributed to a highly efficient carburetter and the subsequent actions taken. | 20th Jul 1928 | Box 47 \ 5 Scan185 | |
| Cause of slight explosions in the silencer due to a customer's driving habits. | 7th Aug 1928 | Box 47 \ 5 Scan186 | |
| Exhaust system explosions when coasting downhill and potential remedies. | 7th Aug 1928 | Box 47 \ 5 Scan187 | |
| Suggesting sending specific front and rear springs for vehicle GYL-25 and investigating the question of 'nip'. | 8th Aug 1928 | Box 47 \ 5 Scan188 | |
| Replacement policy and potential modifications for front road springs on the 20 HP G2 model. | 8th Sep 1928 | Box 47 \ 5 Scan189 | |
| Customer feedback on the inconvenience of the oil emptying arrangement and the non-attached petrol tank cap on new 20 HP cars. | 1st Oct 1928 | Box 47 \ 5 Scan190 | |
| Cover note for chassis GCK-54, owned by Mrs. Gloag, regarding an issue with 'knocks' and enclosing related correspondence. | 15th Oct 1928 | Box 47 \ 5 Scan191 | |
| Arrangements to loan a 20HP car to Mrs. Gloag while her vehicle, chassis GCK-54, is collected. | 12th Oct 1928 | Box 47 \ 5 Scan192 | |
| Customer complaint letter regarding squeaking springs and engine detonation issues on chassis GCK-54. | 11th Oct 1928 | Box 47 \ 5 Scan193 | |
| Forwarding note attaching a memo from the Sales Department regarding chassis GCK-54 for Mrs. Gloag. | 18th Oct 1928 | Box 47 \ 5 Scan194 | |
| Letter from Mrs. Gloag's driver detailing an engine knock and squeaking springs on chassis GCK-54. | 17th Oct 1928 | Box 47 \ 5 Scan195 | |
| Investigating a knock on chassis GCK-54 for Mrs. Gloag, identifying it as a dynamo rattle and returning the car for engine gear repairs. | 22th Oct 1928 | Box 47 \ 5 Scan196 | |
| The investigation into a galloping knock and other rattles on chassis GCK-54. | 22th Oct 1928 | Box 47 \ 5 Scan197 | |
| Fitting of shock dampers to car GYL-62 to address a customer complaint. | 31th Oct 1928 | Box 47 \ 5 Scan198 | |
| Customer complaint regarding the poor non-skid performance of Dunlop tyres and the possibility of re-treading. | 1st Nov 1928 | Box 47 \ 5 Scan199 | |
| Modified oiling scheme for 20 HP tappets to address noise from wear. | 5th Nov 1928 | Box 47 \ 5 Scan200 | |
| Arranging instruction for necessary parts for chassis GSK-55. | 9th Nov 1928 | Box 47 \ 5 Scan201 | |
| Quarterly complaints report for the 20 HP model, detailing failures by type and location for the quarter. | 30th Sep 1928 | Box 47 \ 5 Scan202 | |
| Summary table of vehicle complaints, detailing the nature of the issue and the number of cars affected by series. | 26th Nov 1928 | Box 47 \ 5 Scan203 | |
| Forwarding a report about a shock absorber complaint for chassis GEXM-21. | 26th Nov 1928 | Box 47 \ 5 Scan204 | |
| Customer complaint about rattling shock absorbers on chassis GEH-21. | 23th Nov 1928 | Box 47 \ 5 Scan205 | |
| Correspondence regarding noisy shock absorbers on chassis GEM-21 for Mr. F.H. Blackmore. | 30th Nov 1928 | Box 47 \ 5 Scan206 | |
| Customer letter regarding a rattle in chassis GEH-21 and requesting a technician visit to fix the shock absorbers. | 29th Nov 1928 | Box 47 \ 5 Scan207 | |
| Customer complaint about noisy shock absorbers on chassis GBH-21. | 27th Nov 1928 | Box 47 \ 5 Scan208 | |
| Confirming by telephone that a car, chassis GBM-21, will be available in Bristol. | 3rd Dec 1928 | Box 47 \ 5 Scan209 | |
| Hydraulic shock absorber knocks on two chassis, GKM-40 and GKM-12. | 3rd Dec 1928 | Box 47 \ 5 Scan210 | |
| Letter from coachbuilder Rippon Bros. Ltd. regarding delays and issues with the painting of chassis GKM-40 for Mr. T. Shire. | 1st Dec 1928 | Box 47 \ 5 Scan211 | |
| Letter from Rippon Bros. Ltd. reporting a knocking noise from the offside rear hydraulic shock absorber on chassis GKM-12. | 1st Dec 1928 | Box 47 \ 5 Scan212 | |
| The cause of knocking in 20 HP shock absorbers, tracing the issue to a faulty non-return ball valve. | 3rd Dec 1928 | Box 47 \ 5 Scan213 | |
| Letter to a customer regarding a mechanic being sent to fix an elusive problem with noisy shock absorbers. | 3rd Dec 1928 | Box 47 \ 5 Scan214 | |
| Test procedures for F. Blackmore's shock absorbers. | 3rd Dec 1928 | Box 47 \ 5 Scan215 | |
| Fitting new production dampers and high-pressure valves to cure a noise issue. | 3rd Dec 1928 | Box 47 \ 5 Scan216 | |
| Letter to a customer regarding an elusive shock absorber issue, with an internal handwritten note questioning the communication strategy. | 3rd Dec 1928 | Box 47 \ 5 Scan217 | |
| Confirming a mechanic has been sent to experiment on Mr. Blackmore's car. | 4th Dec 1928 | Box 47 \ 5 Scan218 | |
| Customer's request to fit wellbase type wheels and omit hydraulic shock dampers on chassis 111-YC. | 7th Dec 1928 | Box 47 \ 5 Scan219 | |
| Fitting balloon tyres to Phantom cars, requiring hydraulic shock absorbers to prevent high-speed wobbles. | 8th Dec 1928 | Box 47 \ 5 Scan220 | |
| Investigation into the cause of noisy rear shock dampers on a 20 HP car following a customer complaint. | 13th Dec 1928 | Box 47 \ 5 Scan221 | |
| Curing shock absorber complaints and the need for further road test data. | 13th Dec 1928 | Box 47 \ 5 Scan222 | |
| Blueprint drawing for a 20 H.P rear shock damper. | 13th Dec 1928 | Box 47 \ 5 Scan223 | |
| Blank document page with a purple ink stamp from the Derby print room. | 13th Dec 1928 | Box 47 \ 5 Scan224 | |
| Arranging an investigation into a customer's noisy shock absorbers and faulty self-starter on chassis GBM-22. | 17th Dec 1928 | Box 47 \ 5 Scan225 | |
| Letter concerning a recurring issue with noisy hydraulic shock absorbers on chassis GYL-62 for customer Mr. Pilling. | 20th Dec 1928 | Box 47 \ 5 Scan226 | |
| Customer complaint letter regarding a persistent knocking sound from the shock absorbers on chassis GYL-62. | 19th Dec 1928 | Box 47 \ 5 Scan227 | |
| Scheduling an investigation for a problem on chassis GBM.22 for F.H. Farrer Esq. | 22th Dec 1928 | Box 47 \ 5 Scan228 | |
| Requesting the supply and testing of a new engine for chassis GMJ-53. | 1st Jan 1929 | Box 47 \ 5 Scan229 | |
| Customer's 20HP car, loaned for experimental work on knocking shock absorbers. | 7th Jan 1929 | Box 47 \ 5 Scan230 | |
| Mr. Minchin's feedback and suggestions regarding his 20 HP car. | 21th Jan 1929 | Box 47 \ 5 Scan231 | |
| Investigation and rectification of various noises on Mr. Pilling's car, focusing on the shock absorbers. | 22th Jan 1929 | Box 47 \ 5 Scan232 | |
| Customer's car fault (GCK.54), diagnosis, and the provision of a loaner vehicle. | 21th Jan 1929 | Box 47 \ 5 Scan233 | |
| Slipper Drive issues on two cars, chassis GCK-54 and GSK-69, and arranging for a specialist to attend to them. | 30th Jan 1929 | Box 47 \ 5 Scan234 | |
| Condition of Colonel Fell's car and recommending a more suitable replacement. | 30th Jan 1929 | Box 47 \ 5 Scan235 | |
| Agreeing with recommendations to cure a mysterious engine knock, noting other customers are also waiting for a solution. | 31th Jan 1929 | Box 47 \ 5 Scan236 | |
| Concerning rear hydraulic shock absorber issues on chassis GYL-62, and arranging a follow-up visit to the owner S.W. Pilling. | 5th Feb 1929 | Box 47 \ 5 Scan237 | |
| Customer feedback letter regarding a successful repair of rattling shock absorbers on Chassis GYL-62, with a new query about the battery. | 4th Feb 1929 | Box 47 \ 5 Scan238 | |
| Clarifying that a customer's feedback on his 20 HP car was overwhelmingly positive, not critical as previously implied. | 31th Dec 1929 | Box 47 \ 5 Scan239 | |
| Copy of a letter from customer G.R.N. Minchin providing feedback on his new 20hp car. | 31th Dec 1928 | Box 47 \ 5 Scan240 | |
| List of critiques and suggested improvements for a vehicle's design and features. | 31th Dec 1928 | Box 47 \ 5 Scan241 | |
| List of suggested design and engineering improvements for a motor car, including chassis, bonnet, engine, and other components. | 31th Dec 1928 | Box 47 \ 5 Scan242 | |
| Letter from G.R.N. Minchin suggesting car modifications and requesting a radiator replacement. | 31th Dec 1928 | Box 47 \ 5 Scan243 | |
| Customer letter providing a detailed review and suggestions for improvement on a new 20hp car. | 31th Dec 1928 | Box 47 \ 5 Scan244 | |
| List of suggested design improvements and criticisms for a vehicle. | 31th Dec 1928 | Box 47 \ 5 Scan245 | |
| List of suggested design and performance improvements for a car model. | 31th Dec 1928 | Box 47 \ 5 Scan246 | |
| Conclusion of a letter from G.R.N. Minchin suggesting modifications to the Phantom car model. | 15th Mar 1929 | Box 47 \ 5 Scan247 | |
| Letter from Melbourne discussing various vehicle faults and suggesting improvements based on reports. | 15th Mar 1929 | Box 47 \ 5 Scan248 | |
| Report from Melbourne detailing various mechanical issues and potential improvements for 20 HP and 40/50 HP models in Australian conditions. | 15th Mar 1929 | Box 47 \ 5 Scan249 | |
| Owners' complaints and faults for the three months ending 28th February 1929. | 12th Mar 1929 | Box 47 \ 5 Scan250 | |
| Quarterly report detailing complaints from owners of 40/50 HP and 20 HP cars. | 27th Feb 1929 | Box 47 \ 5 Scan251 | |
| Quarterly complaints report for the 20 HP model for the quarter ending 31.12.1928. | 20th Mar 1929 | Box 47 \ 5 Scan252 | |
| Summary report detailing vehicle complaints, the number of affected cars, and engineering remarks. | 20th Mar 1929 | Box 47 \ 5 Scan253 | |
| Summary report on vehicle complaints, categorizing issues by car series and detailing remedial actions. | 20th Mar 1929 | Box 47 \ 5 Scan254 | |
| Complaints of noisy tappets, the number of vehicles affected, and remarks on corrective actions. | 29th Apr 1929 | Box 47 \ 5 Scan255 | |
| Fitting experimental side steering tube springs to chassis 122-KR for Mr Haywood. | 29th Apr 1929 | Box 47 \ 5 Scan256 | |
| Fitting of special side steering tube springs to chassis No. 122-KR. | 2nd May 1929 | Box 47 \ 5 Scan257 | |
| Potential improvement to the 20 HP carburetter jet control. | 6th Apr 1929 | Box 47 \ 5 Scan258 | |
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