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).
Declining interest in Siemens sparking plugs in favour of the British made ones currently in use.
| Identifier | ExFiles\Box 58\2\ Scan052 | |
| Date | 12th December 1932 | |
| V1812.a To F.{Mr Friese} From Hs.{Lord Ernest Hives - Chair} c. to Wor.{Arthur Wormald - General Works Manager} Hs.{Lord Ernest Hives - Chair}12/MJ.12.12.32. Re. Siemens Sparking Plugs. Replying to F.2/JL.9.12.32. We are not interested in these plugs and are quite satisfied with the British made plugs we are at present using. Hs.{Lord Ernest Hives - Chair} | ||