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).
Cross-sectional drawing of a rod assembly with an annotated cork washer.
| Identifier | ExFiles\Box 5a\3\ 03-page278 | |
| Date | 11th June 1933 | |
| 11/6/33 cork washer fitted to face of superiority Jchandon P L R F | ||