Sketch illustrating the fouling positions of a knuckle joint.
| Identifier | ExFiles\Box 11\5\ 05-page081 | |
| Date | 23th April 1934 guessed | |
| positions where the knuckle joint has fouled | ||
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).