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 arrangement of the master switch for body wiring to include a warning light.
| Identifier | ExFiles\Box 168b\2\ img234 | |
| Date | 1st February 1932 | |
| CX.{Major Len W. Cox - Advertising Manager} From HS{Lord Ernest Hives - Chair}/WSt. c. to EY. GG. c. to WST. E.{Mr Elliott - Chief Engineer} c. to DA.{Bernard Day - Chassis Design} HD.{Mr Hayward/Mr Huddy} X6082 HS{Lord Ernest Hives - Chair}/WSt. S/W.A.S. 2. 32. X7741p MASTER SWITCH FOR BODY WIRING ETC. Re your dx.S/Kr.4.2.32., we would rather arrange the master switch so that the red warning light indicated that both the ignition and the master accessory control switch had been left on and we are looking into the question as to whether this can be done conveniently. HS{Lord Ernest Hives - Chair}/WSt. | ||