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).
Photograph of a universal joint or a similar mechanical linkage component.
| Identifier | ExFiles\Box 94\4\ scan0120 | |
| Date | 1st July 1936 guessed | |
| ", | ||