Laboratory photograph showing a cross-section of a machined metal component, possibly a connecting rod big-end.
| Identifier | ExFiles\Box 9\5\ 05-page098 | |
| Date | 28th June 1937 guessed | |
| LABORATORY M1352/1 | ||
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).