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).
Pencil sketch showing two views of a mechanical component.
| Identifier | WestWitteringFiles\J\January1923\ Scan96 | |
| Date | 9th February 1926 | |
| [ "4 / 9.2.26", "2" ], | ||