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).
Despatch of a sample S.S. push button switch.
| Identifier | ExFiles\Box 64\4\ scan0259 | |
| Date | 30th April 1929 | |
| X7655 To R.{Sir Henry Royce} from EFC. c. SG.{Arthur F. Sidgreaves - MD} EFC5/T30.4.29. S.S. PUSH BUTTON SWITCH. As referred to in our EFC4/T23.4.29, we are now having despatched to you under separate cover a sample push button switch. EFC. | ||