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 modification of test results based on further testing.
| Identifier | ExFiles\Box 24\4\ Scan277 | |
| Date | 21th November 1924 guessed | |
| X766 As the result of a large number of tests subsequently carried out by method B. some of these results have been slightly modified. | ||