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 blueprint for a Phantom III instrument board dimmer switch.
| Identifier | ExFiles\Box 168a\1\ img049 | |
| Date | 22th September 1936 | |
| To IRC. c. Hs{Lord Ernest Hives - Chair}/Wst. c. Er-Br.{T. E. Bellringer - Repair Manager} r6135. BY/RD.1/B.22.9.36. "Phantom III" Instrument Board. We hand you herewith, blue print of R.R.Sch.991 - Dimmer Switch for Instrument Board Lights. Details will be issued in the course of a few days. This is a scheme in which Sg.{Arthur F. Sidgreaves - MD} is particularly interested, and has specially asked for this feature to be incorporated. BY/RD. | ||