| Description | Date | Identifier | |
| Fitting information for the Sheffield Simplex Automatic Dipper. | 13th Oct 1926 | Box 61a \ 1 scan0252 | |
| Fitting instructions for headlamp attachments and automatic dipper sets from The Sheffield Simplex Company. | 3rd Nov 1926 | Box 61a \ 1 scan0253 | |
| From RS to HS regarding the 'Artic' anti-dazzle headlight. | 3rd Nov 1926 | Box 61a \ 1 scan0254 | |
| Advertising leaflet for ARTIC Green Ring Non-Dazzle Headlamps and fitments. | 7th Sep 1926 | Box 61a \ 1 scan0255 | |
| Royal Automobile Club certificate of performance for 'Artic' Non-Dazzle Headlamps. | 7th Sep 1926 | Box 61a \ 1 scan0256 | |
| The 'Arctic' Anti Dazzle Headlight device. | 15th Nov 1926 | Box 61a \ 1 scan0257 | |
| The 'Arctic' Anti-Dazzle Scheme for lamps. | 18th Nov 1926 | Box 61a \ 1 scan0258 | |
| The despatch of Lucas tail lamps for repair, specifying the need for single pole adaptors. | 10th Dec 1926 | Box 61a \ 1 scan0259 | |
| The procurement of Zeiss headlamps for an Open Touring Phantom Car 10-EX. | 13th Dec 1926 | Box 61a \ 1 scan0260 | |
| Supply of Zeiss headlamps and a full-scale drawing for the 10-EX model. | 2nd Jan 1927 | Box 61a \ 1 scan0261 | |
| Delay in receiving a sample of a new Lucas lamp. | 24th Jan 1927 | Box 61a \ 1 scan0262 | |
| Scheme for a tool box in the running board for car EAC.7. | 21th Jan 1927 | Box 61a \ 1 scan0263 | |
| Delivery and fitting of wings, valances, and lamps for car EAC.7. | 2nd Jan 1927 | Box 61a \ 1 scan0264 | |
| Returning a tail lamp to the makers for repair and to be supplied with single pole adapters. | 1st Feb 1927 | Box 61a \ 1 scan0265 | |
| Instruction to send a Zeiss headlamp for a new front glass fitting and to order three new bulbs. | 17th Feb 1927 | Box 61a \ 1 scan0266 | |
| Request to despatch a tail lamp to Messrs. Lucas for repair and modification from a double to a single pole adapter. | 7th Mar 1927 | Box 61a \ 1 scan0267 | |
| From Carl Zeiss (London) Ltd. regarding unreceived enclosures from a previous letter. | 12th Apr 1927 | Box 61a \ 1 scan0268 | |
| Price list and specification sheet for Zeiss Electric Spotlights, models ZESS 80 and ZESS 120. | 12th Apr 1927 | Box 61a \ 1 scan0269 | |
| Advertisement for Zeiss automotive lighting products. | 12th Apr 1927 | Box 61a \ 1 scan0270 | |
| Advertisement by Carl Zeiss Jena for aftermarket headlights for American cars. | 1st Feb 1927 | Box 61a \ 1 scan0271 | |
| Advertisement for Carl Zeiss automotive lighting and signaling equipment. | 1st Feb 1927 | Box 61a \ 1 scan0272 | |
| Catalogue page for Zeiss auto headlights, projector lamps, and spotlights. | 1st Nov 1926 | Box 61a \ 1 scan0273 | |
| Brochure for Carl Zeiss Jena auto headlights, detailing their design, anti-glare features, and various models. | 1st Feb 1927 | Box 61a \ 1 scan0274 | |
| Leaflet for Carl Zeiss vehicle lighting including headlights, spotlights and the 'Contal' signal ring. | 1st Feb 1927 | Box 61a \ 1 scan0275 | |
| Brochure for the 'Contal' Signal Ring, an aftermarket horn-operating device for automobiles manufactured by Carl Zeiss. | 1st Jan 1927 | Box 61a \ 1 scan0276 | |
| Sales leaflet for the 'Contax' vehicle direction indicator system by Carl Zeiss Jena. | 1st Jan 1927 | Box 61a \ 1 scan0277 | |
| Promotional leaflet for the 'Contax' electro-magnetic direction indicator and stop sign for motor vehicles, manufactured by Zeiss-Ikon. | 1st Dec 1926 | Box 61a \ 1 scan0278 | |
| Price list and renewal parts catalogue for Carl Zeiss Jena projector lamps for vehicles. | 1st Dec 1926 | Box 61a \ 1 scan0279 | |
| Price list for Carl Zeiss electric motor car headlamps, spotlamps, boat projector lamps, bulbs, and related accessories. | 14th Apr 1927 | Box 61a \ 1 scan0280 | |
| Internal request to order two festoon lamps, one from Messrs. Lucas and one from Messrs. Bonnella. | 14th Apr 1927 | Box 61a \ 1 scan0281 | |
| Returning a hood lamp to Connella & Sons Ltd. and retaining a festoon lamp from Lucas. | 26th Apr 1927 | Box 61a \ 1 scan0282 | |
| Letter from Joseph Lucas Limited chasing the delivery of special parts for headlamps for a car being sent to West Wittering. | 10th May 1927 | Box 61a \ 1 scan0283 | |
| Follow-up letter regarding Lucas and Bonnella Festoon Lamps obtained on approval, requesting a requisition for the lamp being kept. | 16th May 1927 | Box 61a \ 1 scan0284 | |
| Confirming the retention of a Lucas 'festoon' lamp and the return of a Bonnella lamp. | 17th May 1927 | Box 61a \ 1 scan0285 | |
| Listing blueprints in connection with dipping headlamps for the 20 HP and 40/50 HP chassis. | 17th May 1927 | Box 61a \ 1 scan0286 | |
| Unavailability of double-pole adaptors for cars and the return of a sample. | 21th Jul 1927 | Box 61a \ 1 scan0287 | |
| Pair of special Lucas Nickel Plated Head Lamps for experimental testing. | 22th Jul 1927 | Box 61a \ 1 scan0288 | |
| Features and modifications for the Sports Phantom series EAC.14. | 13th Oct 1927 | Box 61a \ 1 scan0289 | |
| New practical scheme for dipping headlamps, its design, potential patenting, and comparison to existing systems. | 20th Oct 1927 | Box 61a \ 1 scan0290 | |
| Ordering and producing drawings for dipping headlamps from Lucas & Co. | 22th Oct 1927 | Box 61a \ 1 scan0291 | |
| Order for Lucas head lamps and a request for a set with dipping reflectors. | 24th Oct 1927 | Box 61a \ 1 scan0292 | |
| New schematics for dipping headlamps and an alteration to the ball end fitting. | 29th Oct 1927 | Box 61a \ 1 scan0293 | |
| Design and distribution of rear number plates and tail lamps for sports cars to coachbuilders. | 1st Nov 1927 | Box 61a \ 1 scan0294 | |
| The new Lucas Dippers, proposing to fit a set on a 20 HP car for testing. | 4th Nov 1927 | Box 61a \ 1 scan0295 | |
| The design of new Lucas headlamps not permitting dipping reflectors and the despatch of a pair. | 4th Nov 1927 | Box 61a \ 1 scan0296 | |
| The incompatibility of dipping reflectors with a new lamp type from the supplier Lucas. | 5th Nov 1927 | Box 61a \ 1 scan0297 | |
| Sending a drawing of a rear light and number plate for a sports car, with a request for prints. | 5th Nov 1927 | Box 61a \ 1 scan0298 | |
| Request to obtain four lamp bulbs similar to a sample removed from Zeiss lamps. | 11th Nov 1927 | Box 61a \ 1 scan0299 | |
| Design challenges with the dipping headlamps mechanism and engine component fouling. | 11th Nov 1927 | Box 61a \ 1 scan0300 | |
| Responding to three points of contention regarding the design and installation of dipping headlamps. | 16th Nov 1927 | Box 61a \ 1 scan0301 | |
| Typed memorandum discussing a mechanical scheme involving a countershaft and rod. | 21th Nov 1927 | Box 61a \ 1 scan0302 | |
| Standardization of sheet steel wing stays for mounting headlamps and dippers. | 21th Nov 1927 | Box 61a \ 1 scan0303 | |
| Development of dipping headlamps versus the newer dipping reflector technology. | 1st Dec 1927 | Box 61a \ 1 scan0304 | |
| Expressing disappointment that a dipping headlamp scheme tested on car 7-EX has been rejected by the Sales Committee. | 2nd Dec 1927 | Box 61a \ 1 scan0305 | |
| Proposed scheme for fitting dipping headlights to the 10,000 miles car. | 5th Dec 1927 | Box 61a \ 1 scan0306 | |
| Requesting a cost and weight analysis for a dipping headlight system compared to an existing scheme. | 6th Dec 1927 | Box 61a \ 1 scan0307 | |
| Dipping headlight schemes and requesting a demonstration set. | 13th Dec 1927 | Box 61a \ 1 scan0308 | |
| Modifications for the dipping headlight control mechanism. | 14th Dec 1927 | Box 61a \ 1 scan0309 | |
| Arranging an inspection for a new design of dipping headlights for the Phantom and Sports car models. | 16th Dec 1927 | Box 61a \ 1 scan0310 | |
| The fitting of dipping headlamps on car 12-EX. | 27th Jan 1928 | Box 61a \ 1 scan0311 | |
| Proposed locking mechanism for the hinge bolt on dipping headlamps. | 11th Feb 1928 | Box 61a \ 1 scan0312 | |
| Specifications of lamp bulbs for the 15-EX car and requesting an order for the Experimental Department. | 13th Feb 1928 | Box 61a \ 1 scan0313 | |
| Inconvenient position of the headlamp dipping lever on the Barker Sports model and proposing to relocate it. | 16th Feb 1928 | Box 61a \ 1 scan0314 | |
| Delay in testing sample bulbs for the Lucas P.100 high power projector. | 1st Mar 1928 | Box 61a \ 1 scan0315 | |
| Design requirements and proposed schemes for dipping headlights on 20 HP and 40/50 models. | 3rd Mar 1928 | Box 61a \ 1 scan0316 | |
| Logistics for testing four special bulbs for Lucas high power projectors. | 5th Mar 1928 | Box 61a \ 1 scan0317 | |
| Points for a fair comparison of Carl Zeiss lamps. | 19th Mar 1928 | Box 61a \ 1 scan0318 | |
| Following up on an order for Osram double filament headlamp bulbs. | 19th Mar 1928 | Box 61a \ 1 scan0319 | |
| And comparing various schemes for dipping headlights. | 11th Apr 1928 | Box 61a \ 1 scan0320 | |
| Alternative designs for dipping headlamp controls to avoid the use of coils. | 15th Apr 1928 | Box 61a \ 1 scan0321 | |
| Parts list and instructions for modifying the dipping head lights hand lever on a 12-EX model. | 24th Apr 1928 | Box 61a \ 1 scan0322 | |
| Discontinuing 9-watt bulbs in side lamps in favour of bulbs that take less current. | 7th May 1928 | Box 61a \ 1 scan0323 | |
| Proposal to raise the headlamps on the Phantom model by one inch. | 15th May 1928 | Box 61a \ 1 scan0324 | |
| Letter to Messrs. J.A. Stevens Ltd. requesting technical particulars for foot-operated dipping headlamps manufactured by Robert Bosch. | 8th Jun 1928 | Box 61a \ 1 scan0325 | |
| Letter from J. A. Stevens Ltd. regarding the supply of Bosch Head Lamps with an anti-dazzle feature. | 9th Jun 1928 | Box 61a \ 1 scan0326 | |
| Pamphlet for the Bosch Headlight with a double filament bulb, listing worldwide representative houses. | 1st Dec 1926 | Box 61a \ 1 scan0327 | |
| The benefits and wiring diagram for a Bosch anti-dazzle double filament headlamp system. | 1st Dec 1926 | Box 61a \ 1 scan0328 | |
| Instructions for altering headlights to a double-filament type and the principles of their operation. | 1st Dec 1926 | Box 61a \ 1 scan0329 | |
| Explanation of the operation and light path of a Bosch Headlight with a double-filament bulb, detailing the main light and anti-dazzle functions. | 1st Dec 1926 | Box 61a \ 1 scan0330 | |
| The operation and specifications of Bosch double-filament headlights and the associated foot switch. | 11th Jun 1928 | Box 61a \ 1 scan0331 | |
| 'Stephen Grebel, Paris' spot light for the 8-EX car, including its dimensions and suggesting a supplier. | 11th Jun 1928 | Box 61a \ 1 scan0332 | |
| Instructions for positioning and creating two sets of fixed lamp brackets for Phantom headlamps. | 13th Jun 1928 | Box 61a \ 1 scan0333 | |
| Request for a drawing of lamp brackets to standardise them for current cars and the G.2.B. Series. | 13th Jun 1928 | Box 61a \ 1 scan0334 | |
| The need for new detail drawings for dipping headlamps to be fitted to the standard Phantom model. | 15th Jun 1928 | Box 61a \ 1 scan0335 | |
| Brackets and fitting of P.100 Lucas headlamps for the Phantom model, differentiating between standard and sports chassis requirements. | 15th Jun 1928 | Box 61a \ 1 scan0336 | |
| Letter to Messrs. J.A. Stevens Ltd regarding a Bosch headlamp dipping system and declining an offer for a set of lamps. | 16th Jun 1926 | Box 61a \ 1 scan0337 | |
| Sample brackets and dipping devices for Phantom Headlamps. | 18th Jun 1928 | Box 61a \ 1 scan0338 | |
| Instructing the stores to despatch a tail lamp to Messrs. Lucas for repair. | 1st Jun 1928 | Box 61a \ 1 scan0339 | |
| The standardization and positioning of Phantom headlamps and their brackets. | 13th Jul 1928 | Box 61a \ 1 scan0340 | |
| Proposed positioning and brackets for Phantom headlamps. | 17th Jul 1928 | Box 61a \ 1 scan0341 | |
| Correspondence regarding the cancellation and ordering of various headlamps and switches for a Barkerlite Coupe. | 18th Jul 1928 | Box 61a \ 1 scan0342 | |
| The satisfactory performance and durability of headlamp bulbs after 2000 miles of use. | 20th Jul 1928 | Box 61a \ 1 scan0343 | |
| Letter from Butlers Limited regarding a pair of previously rejected lamps. | 27th Jul 1928 | Box 61a \ 1 scan0344 | |
| Bifocal dipping headlamp system as an alternative to mechanical dipping systems. | 3rd Sep 1928 | Box 61a \ 1 scan0345 | |
| Request to obtain a pair of Bifocal dipping lamps suitable for the Phantom car. | 20th Sep 1923 | Box 61a \ 1 scan0346 | |
| Modifications to a front axle to improve stability and reduce steering shocks. | 21th Sep 1923 | Box 61a \ 1 scan0347 | |
| Standardisation of headlamps, comparing the Lucas P.100 with the RB-160 style, and suggesting alterations for the 20 HP lamp. | 10th Oct 1928 | Box 61a \ 1 scan0348 | |
| Supply of Guide Tilt-Ray headlamps and US Eastern States regulations. | 6th Oct 1928 | Box 61a \ 1 scan0349 | |
| Mounting issues and potential alterations for Lucas P.100 headlamps on a Phantom chassis. | 9th Oct 1928 | Box 61a \ 1 scan0350 | |
| Trial of Bifocal dimming using dual-filament bulbs to avoid mechanical dipping mechanisms. | 10th Oct 1928 | Box 61a \ 1 scan0351 | |
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