Production specification and test for an EAC.10 or S.S. switchbox.
| Identifier | ExFiles\Box 65\2\ scan0015 | |
| Date | 30th November 1928 | |
| X7730 To BY. {R.W. Bailey - Chief Engineer} from EFC. {E. Fowler Clarke - Electrical Engineer} c. Mr. Brock. EFC {E. Fowler Clarke - Electrical Engineer} 4/T30.11.28. EAC.10 SWITCHBOX. Herewith please receive copy of production specification/and test, Version 2, applicable to the EAC.10 or S.S. switchbox to operate with auxiliary magneto tumbler switch. EFC. {E. Fowler Clarke - Electrical Engineer} | ||
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).