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).
Drawing showing three views of a cylinder block.
| Identifier | ExFiles\Box 180\M4\M4.2\ img004 | |
| Date | 7th February 1924 guessed | |
| CYLINDER BLOCK 22 | ||