| Description | Date | Identifier | |
| The loan and return of experimental headlamps for testing. | 28th Aug 1934 | Box 61a \ 2 scan0325 | |
| Letter to Joseph Lucas Ltd. confirming a discussion about headlamps and trafficators. | 30th Aug 1934 | Box 61a \ 2 scan0326 | |
| Letter from Stadium Ltd. concerning a delay in completing a sample of a special tubular dash lamp. | 31th Aug 1934 | Box 61a \ 2 scan0327 | |
| The urgent reconditioning of Lucas P.100 headlamps for chassis 4.B.IV. | 4th Sep 1934 | Box 61a \ 2 scan0328 | |
| Confirming the supply of P 100 SED headlamps and the delay in changing them due to the owner's holiday. | 4th Sep 1934 | Box 61a \ 2 scan0329 | |
| Letter from Stadium Ltd. regarding a visit from their representative concerning a special Dash Lamp. | 4th Sep 1934 | Box 61a \ 2 scan0330 | |
| Letter regarding a demonstration and manufacturing negotiations for an automatically swivelling headlight apparatus. | 4th Sep 1934 | Box 61a \ 2 scan0331 | |
| Letter proposing an arrangement for the use of a proprietary lamp system on cars. | 4th Sep 1934 | Box 61a \ 2 scan0332 | |
| Letter to Joseph Lucas Ltd. regarding a fault with the headlamp dipping mechanism and water ingress in fog lamps on an experimental Bentley. | 4th Sep 1934 | Box 61a \ 2 scan0333 | |
| Criticism of headlamp dimming arrangements and investigating French alternatives. | 5th Sep 1934 | Box 61a \ 2 scan0334 | |
| Letter from Stadium Limited enclosing a rough drawing of a proposed Dash Light Fitting. | 6th Sep 1934 | Box 61a \ 2 scan0335 | |
| Letter from Stadium Ltd. concerning a sample No.236 Dash Lamp sent for parts manufacturing. | 7th Sep 1934 | Box 61a \ 2 scan0336 | |
| Letter to Joseph Lucas Ltd. seeking their opinion on a scheme for automatically swivelling headlamps. | 7th Sep 1934 | Box 61a \ 2 scan0337 | |
| Request to order Lucas P.100 headlamps for a new experimental Bentley chassis 5.B.IV. | 7th Sep 1934 | Box 61a \ 2 scan0338 | |
| Letter to Joseph Lucas Ltd. requesting an invoice for two Lucas lamps supplied for Mr. E.R. Hall's Bentley. | 7th Sep 1934 | Box 61a \ 2 scan0339 | |
| Internal request to order two lamp adaptors from Messrs. Lucas. | 10th Sep 1934 | Box 61a \ 2 scan0340 | |
| Inquiry regarding the availability of Lightened Type P.100 Headlamps for Bentley chassis. | 11th Sep 1934 | Box 61a \ 2 scan0341 | |
| Development and weight reduction of Type P.100 headlamps for a Bentley chassis. | 12th Sep 1934 | Box 61a \ 2 scan0342 | |
| Order for one dozen 12 volt Ediswan Indicator pattern lamps. | 12th Sep 1934 | Box 61a \ 2 scan0343 | |
| Invoice from Stadium Ltd. for a dash lamp, requesting a covering order for payment. | 17th Sep 1934 | Box 61a \ 2 scan0344 | |
| Follow-up letter to Mr. R.N. Neill of Messrs. Joseph Lucas Ltd. regarding unanswered correspondence. | 17th Sep 1934 | Box 61a \ 2 scan0345 | |
| Return of an unrequisitioned lamp to Messrs. Stadium Ltd. | 18th Sep 1934 | Box 61a \ 2 scan0346 | |
| Brief memo about headlamps, attaching a copy of a previously untraceable document. | 18th Sep 1934 | Box 61a \ 2 scan0347 | |
| Letter from Joseph Lucas Limited regarding the complicated nature and failed negotiations for Mr. Kilroy's swivelling headlamps. | 18th Sep 1934 | Box 61a \ 2 scan0348 | |
| Continuation of a letter from Joseph Lucas Limited to H. West regarding lamps and negotiations. | 18th Sep 1934 | Box 61a \ 2 scan0349 | |
| Letter politely declining a proposed scheme for a lamp assembly due to weight concerns and lack of demand. | 19th Sep 1934 | Box 61a \ 2 scan0350 | |
| Scheme for indicating when vehicle lights are dipped. | 20th Sep 1934 | Box 61a \ 2 scan0351 | |
| Request to Joseph Lucas Ltd. for samples of a 'battery discharge' warning lamp glass from a Wolseley instrument board. | 25th Sep 1934 | Box 61a \ 2 scan0352 | |
| Letter from The General Electric Co Ltd in response to correspondence, advising that their Works department will be in contact to arrange an appointment. | 26th Sep 1934 | Box 61a \ 2 scan0353 | |
| Request for a light, folding screen to be made for headlamp testing. | 26th Sep 1934 | Box 61a \ 2 scan0354 | |
| The use of Sistoflex on headlamp wires for the Phantom II. | 27th Sep 1934 | Box 61a \ 2 scan0355 | |
| Letter from General Electric Co., Ltd. arranging a meeting to discuss automobile lamps. | 27th Sep 1934 | Box 61a \ 2 scan0356 | |
| Modification of chassis headlamps for use in France, specifically the dipping direction. | 28th Sep 1934 | Box 61a \ 2 scan0357 | |
| Fitting and testing dipping lamps on cars in France. | 28th Sep 1934 | Box 61a \ 2 scan0358 | |
| Experiments with chassis headlamps to achieve a sharp cut-off with dipping lamps. | 29th Sep 1934 | Box 61a \ 2 scan0359 | |
| Requesting a covering order for a pair of Bosch LM250 headlamps for testing purposes. | 4th Oct 1934 | Box 61a \ 2 scan0360 | |
| Recommending the standard fitment of a new Lucas fog lamp on the chassis. | 4th Oct 1934 | Box 61a \ 2 scan0361 | |
| Instructions for overhauling a pair of Lucas P.100 headlamps from experimental chassis 29-EX. | 6th Oct 1934 | Box 61a \ 2 scan0362 | |
| New parts required for fitting Bosch headlamps to a Bentley. | 11th Oct 1934 | Box 61a \ 2 scan0363 | |
| Letter to Joseph Lucas Ltd. concerning issues and proposed redesigns for P.100 headlamps. | 11th Oct 1934 | Box 61a \ 2 scan0364 | |
| Second page of a letter discussing a potential manufacturing scheme and a meeting at the Show. | 12th Oct 1934 | Box 61a \ 2 scan0365 | |
| Experience with and the standardization of fog lamps on chassis. | 12th Oct 1934 | Box 61a \ 2 scan0366 | |
| Letter from Joseph Lucas Limited acknowledging a letter and forwarding it to their representative at the Motor Show. | 12th Oct 1934 | Box 61a \ 2 scan0367 | |
| The standardization and testing of chassis fog lamps. | 15th Oct 1934 | Box 61a \ 2 scan0368 | |
| Letter from Philips Lamps Ltd. regarding the development and availability of a new car radio. | 15th Oct 1934 | Box 61a \ 2 scan0369 | |
| Letter from Philips Lamps Ltd about installing an instrument without using suppressors or modifying the car's wiring. | 15th Oct 1934 | Box 61a \ 2 scan0370 | |
| Performance of a Benjamin fog lamp and suggesting a comparison test with a Lucas lamp. | 16th Oct 1934 | Box 61a \ 2 scan0371 | |
| Requesting to obtain a Lucas Fog Lamp on loan for fitting. | 16th Oct 1934 | Box 61a \ 2 scan0372 | |
| Request to return a Lucas fog lamp for reflector cleaning, overhaul, and modification. | 19th Oct 1934 | Box 61a \ 2 scan0373 | |
| Internal request to order various fog lamps for testing on an experimental car. | 19th Oct 1934 | Box 61a \ 2 scan0374 | |
| Inquiry about the status of reconditioned 20/25 Lucas headlamps needed for chassis 21.G.4. | 19th Oct 1934 | Box 61a \ 2 scan0375 | |
| Letter from Talbot Anti-Dazzle Cone Ltd regarding the trial of an Anti-Fog Pilot lamp. | 23th Oct 1934 | Box 61a \ 2 scan0376 | |
| Continuation sheet of a letter to H. Royce Esq. from Talbot Anti-Dazzle Cone Ltd. awaiting a reply on a lamp test. | 23th Oct 1934 | Box 61a \ 2 scan0377 | |
| Purchase and fitting of Marchal 'Strilux' headlamps. | 25th Oct 1934 | Box 61a \ 2 scan0378 | |
| Testing and development of new, lighter headlamps, specifically Marchal lamps and a new double filament model. | 26th Oct 1934 | Box 61a \ 2 scan0379 | |
| Request to obtain Marchal 'Strilux' headlamps and special top forgings for an experimental Bentley 5B4. | 27th Oct 1934 | Box 61a \ 2 scan0380 | |
| Private memo complaining about the poor performance of P.100 lamps. | 31th Oct 1934 | Box 61a \ 2 scan0381 | |
| Letter to Joseph Lucas Ltd. detailing modifications for P.100 type headlamps for R.R. & Bentley chassis. | 1st Nov 1934 | Box 61a \ 2 scan0382 | |
| Approval process and comparative testing of lamps, including fog lamps. | 1st Nov 1934 | Box 61a \ 2 scan0383 | |
| Discussion with a Lucas lamp designer about experimental features for new headlamps and foglamps. | 1st Nov 1934 | Box 61a \ 2 scan0384 | |
| Proposal to stage a lamp demonstration to decide on the best fog lamp. | 1st Nov 1934 | Box 61a \ 2 scan0385 | |
| Testing of Philips Cadmium Yellow bulbs and various headlamp dipping and switching schemes for R-R and Bentley chassis. | 6th Nov 1934 | Box 61a \ 2 scan0386 | |
| Cover note for an I.A.E. Research and Standardisation Committee Report No.7251. | 6th Nov 1934 | Box 61a \ 2 scan0387 | |
| Summary of experiments on the effectiveness of coloured headlamp beams and filters in foggy conditions. | 1st Sep 1934 | Box 61a \ 2 scan0388 | |
| Requesting a date for a demonstration of headlamps and foglamps for R-R and Bentley chassis. | 8th Nov 1934 | Box 61a \ 2 scan0389 | |
| Arrangement of lamps on three cars for headlamp tests. | 8th Nov 1934 | Box 61a \ 2 scan0390 | |
| Requesting a covering order to be issued for further tests on a lamp. | 8th Nov 1934 | Box 61a \ 2 scan0391 | |
| Invoice from Currus Ltd. for a chromium-plated fog lamp. | 6th Nov 1934 | Box 61a \ 2 scan0392 | |
| Suggesting a trial of Zeiss lamps, based on positive past experience with them on a Sports Phantom. | 10th Nov 1934 | Box 61a \ 2 scan0393 | |
| Letter from Carl Zeiss (London) Ltd. detailing the Zeseaps 250 headlamp and its pricing. | 8th Nov 1934 | Box 61a \ 2 scan0394 | |
| Request to order one Currus all-chromium fog lamp for experimental car 28-EX. | 14th Nov 1934 | Box 61a \ 2 scan0395 | |
| Letter to 'Stadium' Ltd. regarding the discontinuation of experimental work on dash lamps. | 14th Nov 1934 | Box 61a \ 2 scan0396 | |
| The fitting of various fog lamps to specific vehicles. | 14th Nov 1934 | Box 61a \ 2 scan0397 | |
| Letter from The General Electric Co. Ltd. apologising for a delay in supplying special OSRAM Graves type bulbs. | 15th Nov 1934 | Box 61a \ 2 scan0398 | |
| Request to obtain a sample of 'Nebulite' Fog Filter glass from Pilkington Brothers Ltd. for testing on headlamps. | 16th Nov 1934 | Box 61a \ 2 scan0399 | |
| Various types of fog lamps, concluding that Currus and Benjamin models are the best. | 13th Nov 1934 | Box 61a \ 2 scan0400 | |
| Demonstration and comparison of various fog lamps and their performance in dense fog. | 16th Nov 1934 | Box 61a \ 2 scan0401 | |
| Recommendation to obtain a Currus lamp for trial in London after testing other lamps. | 16th Nov 1934 | Box 61a \ 2 scan0402 | |
| Order for a Currus fog lamp for road testing purposes. | 22th Nov 1934 | Box 61a \ 2 scan0403 | |
| Letter from Butlers Limited following up on a request for drawings mentioned during a visit to their stand at Olympia. | 27th Nov 1934 | Box 61a \ 2 scan0404 | |
| Letter to Messrs. Butlers Ltd. declining to proceed with a matter previously discussed at Olympia. | 28th Nov 1934 | Box 61a \ 2 scan0405 | |
| The demonstration and selection of headlamps and fog lamps for R-R and Bentley chassis. | 29th Nov 1934 | Box 61a \ 2 scan0406 | |
| Sending one pair of P.100 headlamps into stores. | 29th Nov 1934 | Box 61a \ 2 scan0407 | |
| The delayed testing of headlamps and fog lamps for R.R. & Bentley chassis. | 30th Nov 1934 | Box 61a \ 2 scan0408 | |
| Disposal of rejected P.100 type E.5 Lucas Headlamps due to bad marking and missing parts. | 30th Nov 1934 | Box 61a \ 2 scan0409 | |
| Letter from Joseph Lucas Limited discussing P.100 headlamps with Lucas Graves Bulbs. | 30th Nov 1934 | Box 61a \ 2 scan0410 | |
| Report from Joseph Lucas Limited discussing the performance of various headlamp bulbs and systems. | 30th Nov 1934 | Box 61a \ 2 scan0411 | |
| Letter from Joseph Lucas Limited offering to run comparative tests in Derby. | 30th Nov 1934 | Box 61a \ 2 scan0412 | |
| Internal order request for two all-chromium Currus Fog Lamps for a Spectre chassis. | 1st Dec 1934 | Box 61a \ 2 scan0413 | |
| Supply and performance of Lucas fog lamps compared to German alternatives. | 1st Dec 1934 | Box 61a \ 2 scan0414 | |
| Urgent delay in fitting headlamps and offering to lend a 40/50 HP car to resolve the matter. | 1st Dec 1934 | Box 61a \ 2 scan0415 | |
| Effectiveness of various headlamp and foglight configurations for driving. | 3rd Dec 1934 | Box 61a \ 2 scan0416 | |
| Request to design under-bonnet lamps for the Spectre, Wraith, and next Bentley models. | 3rd Dec 1934 | Box 61a \ 2 scan0417 | |
| Issues with Lucas P.100 headlamps, including an unrequired switch/cable and the return of a badly marked lamp. | 5th Dec 1934 | Box 61a \ 2 scan0418 | |
| Testing and procurement of new headlamps and fog lamps for R.R. & Bentley chassis. | 5th Dec 1934 | Box 61a \ 2 scan0419 | |
| Relative merits of Lucas, Currus, and bi-focal dipping headlamps and fog lamps. | 5th Dec 1934 | Box 61a \ 2 scan0420 | |
| Leaflet advertising the Stelmar Patent Motor Car Fog Lamp. | 5th Dec 1934 | Box 61a \ 2 scan0421 | |
| Descriptive leaflet for the Stelmar Patent Fog Lamp. | 7th Dec 1934 | Box 61a \ 2 scan0422 | |
| Letter from Banting & Tresilian, Ltd. regarding their new 'Stelmar' Fog and Anti-Dazzle Lamp. | 7th Dec 1934 | Box 61a \ 2 scan0423 | |
| Testimonial letter from a Chief Pilot for Airwork Limited regarding the performance of Stelmar Lamps in foggy conditions. | 10th Jul 1934 | Box 61a \ 2 scan0424 | |
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