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).
Fitting new production dampers and high-pressure valves to cure a noise issue.
| Identifier | ExFiles\Box 47\5\ Scan216 | |
| Date | 3rd December 1928 guessed | |
| -2- We expect that the new production dampers will be better than those he has at present on this car, but we are not certain. It may be that you will be able to leave the car with the new dampers and standard high pressure valves as this may be sufficient to cure the noise. ------- Rm. {William Robotham - Chief Engineer} | ||