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-section drawing of a Steering Box & Cam & Roller Mechanism.
| Identifier | ExFiles\Box 108\2\ scan0135 | |
| Date | 2nd September 1938 guessed | |
| STEERING BOX & CAM & ROLLER MECHANISM. D E F G H | ||