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).
Page 2 of a letter discussing the confidentiality of comparative test reports for four types under supervision.
| Identifier | ExFiles\Box 162\3\ img191 | |
| Date | 11th April 1940 | |
| -2- 11th. April, 1940. At the moment there is very little to choose between the four types under our supervision. We trust that any reports relating to comparative tests, which we may shew you, will be treated confidentially. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||