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).
Drawing illustrating the layout and geometry of a Thompson Joint relative to the frame and front wheels.
| Identifier | ExFiles\Box 153\4\ scan0013 | |
| Date | 28th December 1939 guessed | |
| LEVEL TOP OF FRAME. CL CHASSIS THOMPSON JOINT SHOWN IN GREEN. APPROX APPROX CL FRONT WHEELS | ||