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).
The concluding page of a specification document, noting that the speed range may be subject to alteration.
| Identifier | ExFiles\Box 4\5\ 05-page316 | |
| Date | 3rd November 1924 guessed | |
| -2- This specification is now complete in every detail to the best of our present knowledge, though the speed range given in par. (5) may be susceptible to alteration. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||