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 testing of multiple trials cars to obtain an average result.
| Identifier | ExFiles\Box 20\1\ Scan009 | |
| Date | 10th February 1914 guessed | |
| would be Sales Dept. by the running of their Trials Cars. I do not think that one car only should be taken but the results of two or three, so as to get the average. E.P. | ||