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).
Siemens sparking plugs sent for technical evaluation, not as a substitute, with a request for their return.
| Identifier | ExFiles\Box 58\2\ Scan053 | |
| Date | 13th December 1932 | |
| S/W To Hs.{Lord Ernest Hives - Chair} from F.{Mr Friese} 81812a. Copy to Wor.{Arthur Wormald - General Works Manager} F7/JL.13.12.32. SIEMENS SPARKING PLUGS. With reference to Hs.{Lord Ernest Hives - Chair}12/MJ.12.12.32, it was not expected that these plugs would interest you as a substitute for the British plugs you are using, and they were only sent in case there might be any features of technical interest. As, however, you find there are none, will you please return the samples to us as the insulating material, which is the main novelty, is likely to be of value to the R.A.E. for test purposes. Will you please also return the literature describing the plugs. F.{Mr Friese} | ||