Sketch illustrating where a bolt has broken in a mechanism.
| Identifier | ExFiles\Box 4\9\ 09-page065 | |
| Date | 15th August 1925 guessed | |
| Where bolt have broken | ||
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).