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).
Inability to obtain further information until applications are completed and published.
| Identifier | ExFiles\Box 147\3\ scan0022 | |
| Date | 18th November 1937 guessed | |
| It should be noted that it is not possible to obtain further information regarding the above until or unless the applications are completed and published. | ||