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).
Blueprint showing a cross-sectional view of a mechanical component, labelled Figure 9.
| Identifier | ExFiles\Box 179b\3\ img237 | |
| Date | 21th September 1932 guessed | |
| DES 1769 FIG 9 | ||