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).
Swapping a push button switch between experimental chassis 9-EX and 21-EX.
| Identifier | ExFiles\Box 64\4\ scan0257 | |
| Date | 26th April 1929 | |
| RHC.{R. H. Coverley - Production Engineer} from EFC. c. Hs{Lord Ernest Hives - Chair}/AJL. X7655 EFC2/T26.4.29. PUSH BUTTON SWITCH FOR 21-EX. Referring to EY/RD3/N24.4.29 will you please arrange for the push button switch of the old type at present in use on 9-EX to be utilised on chassis 21-EX, and the switch removed from 21-EX, after overhaul, to be fitted to 9-EX,to keep this car going. The switch removed 9-EX should also be inspected and probably trimmed up before being incorporated in the 21-EX system. Should we later require one other of these switches for another up-to-date SS.{S. Smith} car, the only other one we have to my knowledge is the one on 14-EX. Therefore if we are not by that time ready with some new switches of the old type, a similar exchange would have to be made. EFC. | ||