Two photographs showing cross-sections of an engine cylinder block.
| Identifier | ExFiles\Box 93\4\ scan0056 | |
| Date | 4th August 1936 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).