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).
Reference note on a separator page.
| Identifier | ExFiles\Box 11\3\ 03-page358 | |
| Date | 30th June 1930 guessed | |
| 25-EX. in France | ||