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).
Blank document with a handwritten notation in the top right corner.
| Identifier | ExFiles\Box 5a\3\ 03-page076 | |
| Date | 12th October 1931 guessed | |
| 18 - gH. | ||