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).
Comparison of two cross-sectional diagrams, (a) and (b), of a component, possibly a bearing.
| Identifier | ExFiles\Box 109\3\ scan0185 | |
| Date | 11th September 1941 guessed | |
| (a) (b) | ||