Photograph of a connecting rod and a connecting rod bolt.
| Identifier | Morton\M17\ img005 | |
| Date | 17th February 1938 guessed | |
| ", | ||
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).