| Description | Date | Identifier | |
| Internal order for various Philco radio suppressors and associated components. | 26th Jun 1934 | Box 63 \ 3 scan0039 | |
| Letter to Philco Radio & Television Corporation regarding an order for ignition distributor suppressors for testing. | 26th Jun 1934 | Box 63 \ 3 scan0040 | |
| Installation and performance of a Philco wireless set and new suppressors on a 3 1/2-litre chassis. | 26th Jun 1934 | Box 63 \ 3 scan0041 | |
| Letter from Philco Radio and Television Corporation regarding suppressors, prints for approval, and tool costs. | 27th Jun 1934 | Box 63 \ 3 scan0042 | |
| The fitting of radio sets on RR and Bentley cars. | 28th Jun 1934 | Box 63 \ 3 scan0043 | |
| Letter to Philco Radio & Television Corporation approving suppressors and recommending materials. | 28th Jun 1934 | Box 63 \ 3 scan0044 | |
| Letter from Philco confirming they can alter a moulded Bakelite piece, SKC1160, as suggested. | 29th Jun 1934 | Box 63 \ 3 scan0045 | |
| Arrangement to bring in a car for the fitting of a radio set. | 4th Jul 1934 | Box 63 \ 3 scan0046 | |
| Letter from Philco Radio apologising for a misaddressed letter and enclosing a copy. | 10th Jul 1934 | Box 63 \ 3 scan0047 | |
| Letter from Philco Radio & Television Corporation requesting approval for a specific hexagonal fitting nut due to machinery limitations. | 3rd Jul 1934 | Box 63 \ 3 scan0048 | |
| Correspondence with Philco Radio regarding the installation of a wireless set in a Bentley chassis for W.O. Bentley's continental tour. | 11th Jul 1934 | Box 63 \ 3 scan0049 | |
| The installation of wireless sets in cars, specifically a Philco set for a Bentley trials car. | 11th Jul 1934 | Box 63 \ 3 scan0050 | |
| Letter responding to a query about installing wireless sets in cars, recommending a Philco model and discussing antenna setup. | 11th Jul 1934 | Box 63 \ 3 scan0051 | |
| Sourcing and installation of 'wireless sets' (radios) in cars, focusing on brackets, suppressors, and aerial testing. | 13th Jul 1934 | Box 63 \ 3 scan0052 | |
| Letter to Mr. A.R. Feddon regarding engine misfiring issues on Bentley cars fitted with Philco Wireless Sets. | 14th Jul 1934 | Box 63 \ 3 scan0053 | |
| Follow-up letter concerning ignition trouble and the effectiveness of suppressors. | 16th Jul 1934 | Box 63 \ 3 scan0054 | |
| Arranging for suppressors and adaptors to be loaned to Mr. A.R. Fedden of the Bristol Aeroplane Co. Ltd. for tests on his Bentley. | 16th Jul 1934 | Box 63 \ 3 scan0055 | |
| The fitting of a Philco radio set to vehicle 2.B.IV. | 16th Jul 1934 | Box 63 \ 3 scan0056 | |
| Letter from Delco-Remy & Hyatt Ltd. chasing a promised spare Voltage Controller for tests on Philco Radio installations. | 16th Jul 1934 | Box 63 \ 3 scan0057 | |
| Letter regarding the suppression of interference on a voltage regulator using a special condenser. | 17th Jul 1934 | Box 63 \ 3 scan0058 | |
| Letter from E.K. Cole Ltd (EKCO) about testing and supplying car radio equipment for a 20/25 HP model. | 17th Jul 1934 | Box 63 \ 3 scan0059 | |
| Letter from Erie Resistor Limited requesting confirmation of approval for a submitted suppressor design. | 18th Jul 1934 | Box 63 \ 3 scan0060 | |
| Letter to Erie Resistor Ltd. regarding the suitability of their coil suppressors for ignition distributors. | 18th Jul 1934 | Box 63 \ 3 scan0061 | |
| Letter from Philco Radio and Television Corporation to Rolls-Royce regarding the installation of a car radio for Mr. W.O. Bentley. | 18th Jul 1934 | Box 63 \ 3 scan0062 | |
| Letter from Erie Resistor Limited acknowledging receipt of a previous letter from Rolls Royce. | 19th Jul 1934 | Box 63 \ 3 scan0063 | |
| Letter to Messrs. E.K. Cole, Ltd. confirming arrangements for a visit on the 24th of July. | 19th Jul 1934 | Box 63 \ 3 scan0064 | |
| Letter from radio manufacturer E.K. Cole Ltd. (EKCO) confirming a visit to the Rolls Royce works. | 20th Jul 1934 | Box 63 \ 3 scan0065 | |
| Letter from The Motorola Distributing Company proposing collaboration for installing their car radios. | 23th Jul 1934 | Box 63 \ 3 scan0066 | |
| Letter to The Motorola Distributing Company arranging a convenient date for their engineer to visit. | 24th Jul 1934 | Box 63 \ 3 scan0067 | |
| Letter from The Motorola Distributing Company confirming an engineer's visit. | 25th Jul 1934 | Box 63 \ 3 scan0068 | |
| Letter regarding poor idling performance after fitting Philco Radio Suppressors. | 26th Jul 1934 | Box 63 \ 3 scan0069 | |
| Proposal to fit show chassis with radio sets, following visits from suppliers Ecko and Motorola. | 27th Jul 1934 | Box 63 \ 3 scan0070 | |
| Letter from Lissen Limited concerning the submission of car radio equipment for inspection and testing. | 28th Jul 1934 | Box 63 \ 3 scan0071 | |
| Letter from Lissen Limited proposing a meeting to discuss the suppression of ignition noise and radio equipment. | 28th Jul 1934 | Box 63 \ 3 scan0072 | |
| Letter to Lissen Ltd. to arrange a meeting to discuss the fitting of Radio Sets to Chassis. | 30th Jul 1934 | Box 63 \ 3 scan0073 | |
| Letter to Ekco Ltd. regarding the testing of a Motorola Car Radio set and its vibrator unit. | 30th Jul 1934 | Box 63 \ 3 scan0074 | |
| Letter from a car radio service station regarding the installation and servicing of Philco radios. | 1st Aug 1934 | Box 63 \ 3 scan0075 | |
| Letter from Lissen Limited requesting to postpone a meeting to discuss improvements to a car radio system. | 1st Aug 1934 | Box 63 \ 3 scan0076 | |
| The purchase of ignition system components from Motorola Distributing Co. | 1st Aug 1934 | Box 63 \ 3 scan0077 | |
| Request regarding the recommended position for a radio aerial on a 40/50 HP Chassis with an Enclosed Limousine Body for exhibition at Olympia. | 2nd Aug 1934 | Box 63 \ 3 scan0078 | |
| Installation of a radio set into a show car and recommending a service station. | 1st Aug 1934 | Box 63 \ 3 scan0079 | |
| Investigating the wireless installation on a 16-cylinder Cadillac to understand how to avoid chassis interference. | 31th Jul 1934 | Box 63 \ 3 scan0080 | |
| Customer complaint regarding poor slow running of Chassis GKC-21, caused by sparking plug suppressors for a wireless set. | 3rd Aug 1934 | Box 63 \ 3 scan0081 | |
| Letter from Philco requesting drawings for the installation of their radio receivers in cars. | 2nd Aug 1934 | Box 63 \ 3 scan0082 | |
| Letter to Philco Radio & Television Corporation requesting particulars of their latest radio sets for an experimental chassis. | 3rd Aug 1934 | Box 63 \ 3 scan0083 | |
| Letter to E.K.Cole Ltd. regarding the potential installation of an Ekco radio set in a limousine. | 3rd Aug 1934 | Box 63 \ 3 scan0084 | |
| Invoice from The Motorola Distributing Co. for a 'MOTOROLA' Model Twin 8 radio sent on loan for testing. | 6th Aug 1934 | Box 63 \ 3 scan0085 | |
| Letter from the Motorola Distributing Company acknowledging an order for car radio suppressor sundries. | 7th Aug 1934 | Box 63 \ 3 scan0086 | |
| Page 2 of a letter from The Motorola Distributing Company regarding car radio installations. | 7th Aug 1934 | Box 63 \ 3 scan0087 | |
| Letter from E.K. Cole Ltd (EKCO) regarding car radio tests, Mallory vibrators, and proposals for a 40/50 HP Limousine. | 8th Aug 1934 | Box 63 \ 3 scan0088 | |
| Letter from E.K. Cole Ltd. discussing various options for installing car radio equipment and loudspeakers. | 8th Aug 1934 | Box 63 \ 3 scan0089 | |
| Letter to Philco Radio & Television Corp. of Great Britain, Ltd. enclosing three drawings. | 8th Aug 1934 | Box 63 \ 3 scan0090 | |
| Letter from Philco Radio and Television Corporation of Great Britain regarding the publication of drawings in a new instruction book. | 9th Aug 1934 | Box 63 \ 3 scan0091 | |
| Requesting an order for a Philco car radio set for installation in a vehicle named 'SPECTRE'. | 9th Aug 1934 | Box 63 \ 3 scan0092 | |
| Follow-up memo regarding an invoice from the Motorola Distributing Co. and their reply about the price. | 10th Aug 1934 | Box 63 \ 3 scan0093 | |
| Letter from the Motorola Distributing Company clarifying the price of a receiver supplied on loan for testing. | 9th Aug 1934 | Box 63 \ 3 scan0094 | |
| Proposal for fitting an Ekco radio set into a 40/50 Enclosed Limousine at Olympia. | 10th Aug 1934 | Box 63 \ 3 scan0095 | |
| Letter from Carr's Car Distributors proposing the fitting of Emerson Car Radio equipment. | 16th Aug 1934 | Box 63 \ 3 scan0096 | |
| Installation of a customer's own wireless set into Chassis No. B-70-MN. | 22th Aug 1934 | Box 63 \ 3 scan0097 | |
| Letter to Messrs. Carr's Ltd. requesting complete prices and technical data for their radio sets. | 27th Aug 1934 | Box 63 \ 3 scan0098 | |
| Letter from Lissen Limited regarding a delay in supplying Car Radio Receivers for testing ignition noise suppression. | 27th Aug 1934 | Box 63 \ 3 scan0099 | |
| Best placement for a wireless set aerial in chassis B-70-BN. | 28th Aug 1934 | Box 63 \ 3 scan0100 | |
| Letter from Carr's Car Distributors detailing specifications and pricing for Emerson Car Radio equipment. | 28th Aug 1934 | Box 63 \ 3 scan0101 | |
| Letter from Carr's (Car Distributors) Limited regarding the fitting of car aerials. | 28th Aug 1934 | Box 63 \ 3 scan0102 | |
| Installation instructions and a replacement parts price list for an Emerson Model 965 automobile radio. | 4th Nov 1934 | Box 63 \ 3 scan0103 | |
| Installation instructions and circuit diagram for a Model #965 car radio receiver. | 4th Nov 1934 | Box 63 \ 3 scan0104 | |
| Service information and adjustment procedures for a Superheterodyne radio receiver. | 4th Nov 1934 | Box 63 \ 3 scan0105 | |
| Guide on suppressing electrical interference for in-car radio reception and installing antennas. | 30th Aug 1934 | Box 63 \ 3 scan0106 | |
| Request for information regarding the dimensions, speaker, and power consumption of a set. | 30th Aug 1934 | Box 63 \ 3 scan0107 | |
| Blueprints for installing wireless sets on Bentley chassis. | 31th Aug 1934 | Box 63 \ 3 scan0108 | |
| Correspondence regarding the installation of a Philco Radio Set into a Second Spectre Chassis. | 31th Aug 1934 | Box 63 \ 3 scan0109 | |
| Invoice from Carr's (Car Distributor's) Ltd. for an Emerson car radio set on a sale or return basis. | 3rd Sep 1934 | Box 63 \ 3 scan0110 | |
| Letter from Carr's (Car Distributor's) Ltd. providing technical particulars for a set and arranging for its trial. | 31th Aug 1934 | Box 63 \ 3 scan0111 | |
| Installation of a wireless and aerial in an Experimental Phantom 31-EX, a Second Spectre Chassis. | 3rd Sep 1934 | Box 63 \ 3 scan0112 | |
| Invoice for a Philco car radio set on car 2.B.IV. | 4th Sep 1934 | Box 63 \ 3 scan0113 | |
| Inquiry about the Sunbeam Car Radio Set mentioned in Autocar magazine. | 5th Sep 1934 | Box 63 \ 3 scan0114 | |
| Letter to Philco Radio & Television Corporation requesting an exchange of a recently ordered radio set for a newer model to be tested on an experimental chassis. | 5th Sep 1934 | Box 63 \ 3 scan0115 | |
| Letter from Philco Radio and Television Corporation discussing the availability of car radio receivers. | 7th Sep 1934 | Box 63 \ 3 scan0116 | |
| Inquiry regarding the progress of equipping chassis with fittings for wireless sets (radios). | 7th Sep 1934 | Box 63 \ 3 scan0117 | |
| Obtaining particulars for car radio sets. | 8th Sep 1934 | Box 63 \ 3 scan0118 | |
| Challenges of radio interference when fitting condensers and suppressors to car chassis. | 10th Sep 1934 | Box 63 \ 3 scan0119 | |
| The return of a loaned car radio set to the Motorla Distributing Co. | 11th Sep 1934 | Box 63 \ 3 scan0120 | |
| Letter to The Motorla Distributing Co. regarding the return of a sample car radio set after testing. | 11th Sep 1934 | Box 63 \ 3 scan0121 | |
| Letter discussing the practicalities of fitting radios into cars, including blueprints, interference, and power consumption. | 11th Sep 1934 | Box 63 \ 3 scan0122 | |
| Letter to Messrs. Park Ward & Co. Ltd. regarding the fitting of a car radio aerial and controls for an experimental Phantom chassis 31-EX. | 12th Sep 1934 | Box 63 \ 3 scan0123 | |
| Letter to Messrs. Lissen Ltd. requesting the submission of sample car radio sets for testing. | 12th Sep 1934 | Box 63 \ 3 scan0124 | |
| Arranging the despatch of a car radio aerial for an Experimental Phantom 31-EX. | 12th Sep 1934 | Box 63 \ 3 scan0125 | |
| Clarification on the manufacturer of a car radio, identifying them as Sunbeam Electric Ltd, not Sunbeam Car Company. | 12th Sep 1934 | Box 63 \ 3 scan0126 | |
| Radio sets, deferring questions until a visit to London and requesting an Ecko radio set be prepared for inspection. | 13th Sep 1934 | Box 63 \ 3 scan0127 | |
| Confirming the dispatch of requested blueprints. | 13th Sep 1934 | Box 63 \ 3 scan0128 | |
| Internal instruction to post a roll of blueprints to Major Cox at Conduit Street. | 13th Sep 1934 | Box 63 \ 3 scan0129 | |
| Radio set for a 40/50 Enclosed Limousine for Olympia. | 4th Sep 1934 | Box 63 \ 3 scan0130 | |
| Letter from Lissen Limited arranging a visit to Derby regarding a car radio. | 14th Sep 1934 | Box 63 \ 3 scan0131 | |
| Letter from coachbuilder Park Ward & Co. Ltd. regarding a car radio aerial for Experimental Phantom Chassis 31-EX. | 14th Sep 1934 | Box 63 \ 3 scan0132 | |
| Issues with fitting car radios and their effect on engine performance, proposing a meeting to establish a policy. | 15th Sep 1934 | Box 63 \ 3 scan0133 | |
| Arranging a meeting in London with Mr. P.J. Clayton concerning Chassis GKC-21. | 18th Sep 1934 | Box 63 \ 3 scan0134 | |
| Arranging a meeting to discuss the merits of company headlamps versus the French type. | 19th Sep 1934 | Box 63 \ 3 scan0135 | |
| Letter from Carr's (Car Distributors) Ltd regarding a follow-up on an Emerson Wireless Set. | 19th Sep 1934 | Box 63 \ 3 scan0136 | |
| Depot sheet about the impact of fitting radio sets with suppressor units on the engine's idling performance in R.R. and Bentley cars. | 21th Sep 1934 | Box 63 \ 3 scan0137 | |
| Response to Messrs. Carr's Ltd. regarding the unsatisfactory testing of a loaned six-valve wireless set due to interference. | 21th Sep 1934 | Box 63 \ 3 scan0138 | |
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