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).
Hand-drawn diagram illustrating a component profile with annotations.
| Identifier | ExFiles\Box 12\5\ 05-page176 | |
| Date | 2nd January 1930 guessed | |
| 35° CAM. 1.725 | ||