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).
Query to confirm that the instrument board dimmer/switch unit and electric clock are by-passed from the master switch.
| Identifier | ExFiles\Box 168a\1\ img074 | |
| Date | 9th April 1937 | |
| 6135. To By.{R.W. Bailey - Chief Engineer} RD. from Rm{William Robotham - Chief Engineer}/Wst. Rm{William Robotham - Chief Engineer}/Wst.2/AP.9.4.37 Will you please confirm that only the instrument board combined dimmer and switch unit and the electric clock will be by-passed from the master switch. Rm{William Robotham - Chief Engineer}/Wst. | ||