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 cast metal rocker arm, part number F67047, and a smaller related component.
| Identifier | ExFiles\Box 124\1\ scan0243 | |
| Date | 19th August 1939 guessed | |
| F67047 | ||