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 discussing the comparison of cells and the return of a test book.
| Identifier | ExFiles\Box 1\7\ B001_X15 20 46 50 59-page225 | |
| Date | 10th July 1913 guessed | |
| -2- C.J. (contd) ___________ results, whereas it would be as well if it were worked out at the Works so that they would know how to compare the cells from this point of view. I return Mr Ellis' test book under separate cover- registered post. F.H.R. | ||