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).
Letter to Guy Knowles, Esq. regarding suppressors and the confidential nature of the information.
| Identifier | ExFiles\Box 89\5\ scan0015 | |
| Date | 1st March 1939 | |
| Guy Knowles, Esq. -2- 1st. March, 1939. By the way, we haven't yet found a suppressor which is reliable and your friends might be able to tell us the best one they know of. They had better treat all this information as confidential, as if they want our official view it might be better to write for it as such. Yours, | ||