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).
The removal of a faulty spark plug and coil for examination.
| Identifier | ExFiles\Box 109\5\ scan0055 | |
| Date | 6th May 1938 | |
| -2- Rm{William Robotham - Chief Engineer}/WB.{Mr Brazier/Mr Bell}3/JH.6.5.38. The offending plug along with the R.R. coil taken off, has been brought to the works for examination. The Delco coil (9A) and the original sparking plugs were left fitted to the car. Rm{William Robotham - Chief Engineer}/W. Brazier. | ||