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).
Note on modifications to the silencer and gearbox selector lever.
| Identifier | ExFiles\Box 136\4\ scan0071 | |
| Date | 17th November 1933 | |
| - 2 - 23 HDY.{William Hardy}2/HP.17.11.33. ------------------- It has been necessary to incline the silencer to clear the servo. The selector lever on the gearbox is operated by a flexible Bowden type control. HDY.{William Hardy} | ||