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).
Letter to The Rover Company Ltd. regarding test results for Duckham's oil.
| Identifier | ExFiles\Box 127\3\ scan0035 | |
| Date | 11th April 1935 | |
| Exptl. Dept. Hs{Lord Ernest Hives - Chair}/Rn{Mr Robinson}:10/KW. 11th April, 1935. Captain S.B. Wilks, The Rover Company Ltd., Coventry. Dear Capt. Wilks, Replying to your letter of April 10th, we have always had very satisfactory results with Duckham's oil. It is about three years, however, since we last carried out a specific test on this oil. Yours sincerely, | ||