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).
Short typed memo regarding testing De Dion oil and future experiments.
| Identifier | ExFiles\Box 32\4\ Scan071 | |
| Date | 24th September 1910 | |
| 24th Sept. 1910 Re De Dion Oil. Col. and Mr. Barrington. (2) any other feature. Can we or they suggest a test that would show one oil better than another? We shall be making a series of long experiments very soon when the results will be given to any owner of our cars. F.H.R. [Watermark: DICKINSON BOND] | ||