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).
Diagram illustrating the lubrication method for a flexible cable spring.
| Identifier | WestWitteringFiles\T\November1928\ Scan067 | |
| Date | 28th December 1928 guessed | |
| FLEXIBLE CABLE SPRING LUBRICATION. | ||