| Description | Date | Identifier | |
| The return of faulty Lucas Wind Horns from a Phantom experimental car for overhaul. | 5th Nov 1936 | Box 166 \ 9 img027 | |
| Order for various lamp bulbs. | 16th Nov 1936 | Box 166 \ 9 img028 | |
| Request for a comparative test of Lucas Wind Horns type W.T.22 on car 32-EX. | 17th Nov 1936 | Box 166 \ 9 img029 | |
| New Lucas electric horns and proposing a test for under-bonnet mounting. | 24th Nov 1936 | Box 166 \ 9 img030 | |
| Letter to Joseph Lucas Ltd. detailing ignition distributor specifications for a Bentley Chassis. | 2nd Dec 1936 | Box 166 \ 9 img031 | |
| Letter to Joseph Lucas Limited regarding recurring issues and failures with Mellotone horns. | 7th Dec 1936 | Box 166 \ 9 img032 | |
| Letter to Joseph Lucas Limited urging for an immediate and intelligent solution to a problem. | 7th Dec 1936 | Box 166 \ 9 img033 | |
| Troublesome Lucas Mellotone horns and a request for a report on more reliable alternatives. | 1st Dec 1936 | Box 166 \ 9 img034 | |
| Issues with Lucas Mellotone horns and the ongoing testing of new experimental versions. | 8th Dec 1936 | Box 166 \ 9 img035 | |
| Request for a report on the acoustic properties of new Lucas horns versus Mellotone horns on Chassis 32-EX. | 11th Dec 1936 | Box 166 \ 9 img036 | |
| Failure of the treble horn on car 37-EX and a request for its overhaul and repair. | 19th Dec 1936 | Box 166 \ 9 img037 | |
| The failures of Lucas Mellotone Horns and the proposed modifications. | 8th Jan 1937 | Box 166 \ 9 img038 | |
| Inquiry to Joseph Lucas Ltd. regarding cost reduction and delivery of a new under-bonnet wind-tone horn. | 13th Jan 1937 | Box 166 \ 9 img039 | |
| The return of Lucas Wind-Tone horns removed from a 25/30HP car. | 21th Jan 1937 | Box 166 \ 9 img040 | |
| The replacement and modification of Lucas Wind-Tone Horns for experimental and Phantom cars. | 13th Jan 1937 | Box 166 \ 9 img041 | |
| Letter from Joseph Lucas Ltd. concerning the supply of a Distributor and modified Wind Tone Horns for testing. | 28th Jan 1937 | Box 166 \ 9 img042 | |
| Continuation page of a letter from Joseph Lucas Limited. | 1st Feb 1937 | Box 166 \ 9 img043 | |
| Fitting redesigned trumpets to Lucas W.T.11 horns to resolve issues with snow and rain. | 1st Feb 1937 | Box 166 \ 9 img044 | |
| List of Parts and blueprints for Wraith II headlamps, horns, and fittings. | 3rd Feb 1937 | Box 166 \ 9 img045 | |
| Request to remove old horns and fit new Lucas WT11X type horns to chassis 37 Ex. | 3rd Feb 1937 | Box 166 \ 9 img046 | |
| Request to fit new WT11X horns and a FT57 fog lamp to chassis 34 Ex. | 4th Feb 1937 | Box 166 \ 9 img047 | |
| Letter to Joseph Lucas Ltd. regarding the return of faulty horn relay switches for testing. | 4th Feb 1936 | Box 166 \ 9 img048 | |
| Removal and exchange of Lucas W.T. Horns from chassis 34 EX. | 10th Feb 1937 | Box 166 \ 9 img049 | |
| Request to return Lucas W.T.11 horns from chassis 36 Ex to the makers for exchange with the W.T.11X type. | 10th Feb 1937 | Box 166 \ 9 img050 | |
| Removal of Lucas W.T. horns from chassis 37-EX for replacement. | 22th Feb 1937 | Box 166 \ 9 img051 | |
| Request to dispatch replacement Lucas horns for chassis 35-EX in France due to faults with the existing ones. | 23th Feb 1939 | Box 166 \ 9 img052 | |
| The return of unmodified Lucas W.T. horns. | 1st Mar 1937 | Box 166 \ 9 img053 | |
| Return and replacement of incorrectly modified Lucas Wind Tone Horns. | 2nd Mar 1937 | Box 166 \ 9 img054 | |
| Request for a catalogue illustrating Delco-Remy horns. | 8th Mar 1937 | Box 166 \ 9 img055 | |
| Despatch instruction for a pair of 12-volt matched horns sent as samples on sale or return. | 13th Mar 1937 | Box 166 \ 9 img056 | |
| Instructions for testing and fitting new Delco-Remy horns to chassis 39-EX. | 15th Mar 1937 | Box 166 \ 9 img057 | |
| Fitting and testing Delco Remy electric horns on a Continental Phantom chassis. | 15th Mar 1937 | Box 166 \ 9 img058 | |
| Requesting the return of a pair of trial Delco-Remy horns to the manufacturer. | 17th Mar 1937 | Box 166 \ 9 img059 | |
| Functionality and parts for Delco-Remy electric horns. | 19th Mar 1937 | Box 166 \ 9 img060 | |
| Instruction to fit the latest type louvred trumpets for Lucas WT.11.X horns. | 20th Mar 1937 | Box 166 \ 9 img061 | |
| The unsatisfactory performance of Delco Remy electric horns due to incorrect relay switches. | 22th Mar 1937 | Box 166 \ 9 img062 | |
| Telegraph request regarding the fitting of Delco-Remy horns to vehicle 35-EX. | 22th Mar 1937 | Box 166 \ 9 img063 | |
| Testing of Lucas ignition sets and various types of car horns. | 22th Mar 1937 | Box 166 \ 9 img064 | |
| Typed memorandum discussing the performance and features of Delco Remy electric horns compared to Lucas horns. | 23th Mar 1937 | Box 166 \ 9 img065 | |
| Issues with a Lucas distributor and Mellotone horns, and an inquiry about Delco-Remy horns. | 23th Mar 1937 | Box 166 \ 9 img066 | |
| Instruction to arrange for the removal of Lucas Wind Tone Horns from chassis 32-EX for inspection. | 2nd Apr 1937 | Box 166 \ 9 img067 | |
| Failure of wind tone horns in bad weather and considering alternative solutions. | 5th Apr 1937 | Box 166 \ 9 img068 | |
| The relocation of the car horns to under the bonnet. | 6th Apr 1937 | Box 166 \ 9 img069 | |
| Inquiry into the number of complaints of failure or trouble with wind-tone horns after fitting a modified type. | 6th Apr 1937 | Box 166 \ 9 img070 | |
| Pitting on camshafts, cam rockers, and rollers and the need for rigid inspection. | 8th May 1930 | Box 166 \ 9 img071 | |
| Requesting to arrange for Lucas Horns type WT.22, taken off car 32-EX, to be sent to Messrs. Lucas. | 6th Apr 1937 | Box 166 \ 9 img072 | |
| Requesting a report on customer complaints about wind tone horns, excluding failures due to snow. | 7th Apr 1937 | Box 166 \ 9 img073 | |
| Complaints of faulty wind tone horns traced to the relay unit. | 8th Apr 1937 | Box 166 \ 9 img074 | |
| Status of repairs and modernization for Mellow Tone Horns. | 8th Apr 1937 | Box 166 \ 9 img075 | |
| Typed memorandum regarding customer complaints and replacements for Wind Tone Horns. | 8th Apr 1937 | Box 166 \ 9 img076 | |
| Customer preference for the horns used on Phantom III and 25/30 HP cars. | 9th Apr 1937 | Box 166 \ 9 img077 | |
| The return of a pair of faulty Lucas W.T. horns to the makers for overhaul. | 9th Apr 1937 | Box 166 \ 9 img078 | |
| The decision to persevere with Wind Tone Horns despite existing issues. | 14th Apr 1937 | Box 166 \ 9 img079 | |
| Request to fit a pair of Lucas WT.11/V type horns to chassis 33-X. | 15th Apr 1937 | Box 166 \ 9 img080 | |
| Request to mount a pair of Lucas WT.22 type horns on a 32-EX chassis to replace a faulty pair. | 15th Apr 1937 | Box 166 \ 9 img081 | |
| The failure of three 25/30HP Mellotone Horns during testing. | 23th Apr 1937 | Box 166 \ 9 img082 | |
| Returning three failed Mellotone Horns from a 25/30 HP Chassis to the supplier, Messrs Lucas. | 26th Apr 1937 | Box 166 \ 9 img083 | |
| Frequent failure of Lucas W.T.22 type horns on car 35-EX and arranging their return to the manufacturer. | 5th May 1937 | Box 166 \ 9 img084 | |
| Internal memorandum regarding the return of two faulty Lucas W.T.22 horns for examination and report. | 6th May 1937 | Box 166 \ 9 img085 | |
| Letter to a supplier regarding a failing horn fitted to an experimental car. | 11th May 1937 | Box 166 \ 9 img086 | |
| Letter from Delco-Remy & Hyatt Ltd. regarding the failure of a type K33 horn on an experimental car. | 14th May 1937 | Box 166 \ 9 img087 | |
| The incorrect modification of Lucas W.T. horns and arranging their return to the manufacturer. | 14th May 1937 | Box 166 \ 9 img088 | |
| Internal memorandum requesting the despatch of Lucas W.T. type horns from car 35-EX for modification. | 14th May 1937 | Box 166 \ 9 img089 | |
| Return of modified and unmodified Lucas W.T. horns. | 14th May 1937 | Box 166 \ 9 img090 | |
| Introduction of Mellotone Horns for Bentley vehicles. | 19th May 1937 | Box 166 \ 9 img091 | |
| Return of a faulty pair of Lucas Wind Tone Horns from a Phantom III for repair. | 21th May 1937 | Box 166 \ 9 img092 | |
| Letter to Joseph Lucas Ltd. regarding a new type of horn with vents on the trumpet flare to prevent snow blockage. | 21th May 1937 | Box 166 \ 9 img093 | |
| Incorrectly modified Lucas Wind Tone Horns requiring further work. | 21th May 1937 | Box 166 \ 9 img094 | |
| Decision to fit the Mellotone horn to the Bentley. | 22th May 1937 | Box 166 \ 9 img095 | |
| Request to return a faulty Lucas Horn Relay from chassis 35-EX to the makers for examination and repair. | 28th May 1937 | Box 166 \ 9 img096 | |
| Inquiry to Joseph Lucas Ltd. regarding the production status of a new type of Mellotone horn. | 1st Jun 1937 | Box 166 \ 9 img097 | |
| Obsolete Lucas horns returned for modification, which were discovered to be from a coachbuilder, not the maker. | 3rd Jun 1937 | Box 166 \ 9 img098 | |
| Issues with the Phantom III and Wraith horn button and proposing a modified design. | 4th Jun 1937 | Box 166 \ 9 img099 | |
| Schemes for fitting Lucas Windtone Horns to Bentley cars. | 8th Jun 1937 | Box 166 \ 9 img100 | |
| Alternative schemes for fitting Lucas Windtone horns to a Bentley vehicle. | 8th Jun 1937 | Box 166 \ 9 img101 | |
| Instruction to replace the horns on chassis 24-G-VI with a Lucas WT.23 type. | 8th Jun 1937 | Box 166 \ 9 img102 | |
| The return of a Lucas WT.11 type horn received from coachbuilders. | 9th Jun 1937 | Box 166 \ 9 img103 | |
| The despatch of a Lucas W.T.11 type horn to complete two sets. | 10th Jun 1937 | Box 166 \ 9 img104 | |
| Return of a Windtone Horn to the Lucas Company. | 10th Jun 1937 | Box 166 \ 9 img105 | |
| Introduction of Mellotone horns for the Bentley III model. | 10th Jun 1937 | Box 166 \ 9 img106 | |
| Secret memo regarding the introduction of Mellotone horns for the future Bentley III model. | 10th Jun 1937 | Box 166 \ 9 img107 | |
| The ineffectiveness of new wind-tone horns at high speeds on a Wraith 24-G-VI. | 14th Jun 1937 | Box 166 \ 9 img108 | |
| The ineffectiveness of new wind tone horns at high speeds on a Wraith 24-G-VI. | 14th Jun 1937 | Box 166 \ 9 img109 | |
| Letter from Joseph Lucas Ltd regarding the examination of a returned Relay Unit, disputing a fault claim and suggesting damage in service. | 18th Jun 1937 | Box 166 \ 9 img110 | |
| Design flaw in the Phantom III and Wraith horn button and proposing an alternative scheme. | 19th Jun 1937 | Box 166 \ 9 img111 | |
| Alternative designs for the Phantom III and Wraith horn button. | 19th Jun 1937 | Box 166 \ 9 img112 | |
| Letter from Joseph Lucas Limited concerning Mellotone Horns, enclosing a copy of a previous letter. | 23th Jun 1937 | Box 166 \ 9 img113 | |
| Letter clarifying the testing and power of Mellotone Horns compared to the new WT.13 pattern. | 21th Jun 1937 | Box 166 \ 9 img114 | |
| Instruction to replace Lucas WT.23 horns with Lucas WT.11X type horns on chassis 24-G-VI. | 25th Jun 1937 | Box 166 \ 9 img115 | |
| Request to arrange for the replacement of Lucas WT.13 type horns on chassis 32-EX. | 25th Jun 1937 | Box 166 \ 9 img116 | |
| Modifications to Lucas Wind Tone Horns to prevent failure when blocked by snow. | 26th Jun 1937 | Box 166 \ 9 img117 | |
| Query regarding uninstructed modifications to Mellotone Horns supplied by Lucas. | 25th Jun 1939 | Box 166 \ 9 img118 | |
| Correspondence regarding the return of a pair of Lucas W.T.13 horns for rectification as they were not loud enough. | 30th Jun 1937 | Box 166 \ 9 img119 | |
| Letter to Joseph Lucas Ltd. regarding the insufficient power of W.T.23 horns and a request to make them louder. | 30th Jun 1937 | Box 166 \ 9 img120 | |
| Return of faulty Lucas W.T.13 type horns from car 32-EX. | 30th Jun 1937 | Box 166 \ 9 img121 | |
| Alternative design for the Phantom III and Wraith horn button due to a rattling problem. | 13th Jul 1937 | Box 166 \ 9 img122 | |
| Internal memorandum about a faulty and damaged Lucas Horn relay. | 15th Jan 1937 | Box 166 \ 9 img123 | |
| From Chateauroux regarding fractured I.B.A. screws on the Lucas W.T.13 horns of a 32-EX Phantom III. | 17th Jul 1937 | Box 166 \ 9 img124 | |
| Faulty Lucas Horn Relay Switch, requesting it be sent to Lucas for examination. | 19th Jul 1937 | Box 166 \ 9 img125 | |
| Cancelled internal memo requesting the order of a pair of Lucas WT.13 horns for testing on the 'Bump' rig. | 3rd Aug 1937 | Box 166 \ 9 img126 | |
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