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).
Containing four handwritten names or signatures.
| Identifier | ExFiles\Box 174\5\ img006 | |
| Date | 24th September 1931 guessed | |
| Lorne Charlton Sydney Jules L | ||