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).
Unable to decode
| Identifier | ExFiles\Box 10\5\ 05-page112 | |
| Date | 11th November 1938 guessed | |
| Unable to decode | ||