From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Ignition trouble with car radio sets and the trial of new sparking plugs.
| Identifier | ExFiles\Box 63\3\ scan0270 | |
| Date | 14th February 1935 | |
| N-W Wst. WST r6153 Br4/S. 14.2.35. Technical - Re Ignition Trouble with Car Radio Sets ---------------- With reference to your Hs{Lord Ernest Hives - Chair}/Wst3/MAL3.2.35, we quite agree with your proposal that we should fit a set of these plugs in a case where the trouble is really bad. Will you therefore send the sparking plugs to us, and we will report to you upon them, after they have been tried out. Br.{T. E. Bellringer - Repair Manager} [signature] | ||