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-section of an exhaust component.
| Identifier | ExFiles\Box 106\5\ scan0170 | |
| Date | 31th July 1936 guessed | |
| EX. 22594. .625 EXHAUST SECTION. | ||