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).
Cover memo for the specification of production inspection and test of an EAC.10 push button switch.
| Identifier | ExFiles\Box 64\4\ scan0112 | |
| Date | 5th December 1928 | |
| To BY.{R.W. Bailey - Chief Engineer} from EFC. c. Mr. Brock. X7655B. EFC4/T5.12.28. EAC.10 PUSH BUTTON SWITCH. Herewith please receive specification of production inspection and test of the above. EFC. | ||