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).
Update regarding Duckham's Oil.
| Identifier | ExFiles\Box 145\3\ scan0079 | |
| Date | 19th January 1937 | |
| 1235. S/W To Rm.{William Robotham - Chief Engineer} from Sg.{Arthur F. Sidgreaves - MD} re Duckham's Oil Sg{Arthur F. Sidgreaves - MD}1/E19.1.37 Referring to former correspondence and your Rm{William Robotham - Chief Engineer}34/R.10.11.36, would you please let me know how this matter now stands as I expect he will shortly be asking me. Sg.{Arthur F. Sidgreaves - MD} | ||