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 discussing the use of a special oil for testing and running in an L.7 gear.
| Identifier | ExFiles\Box 28\3\ Scan070 | |
| Date | 19th November 1934 guessed | |
| -2- supplies of the special oil of which you gave us a sample. We used rather a lot of this oil when testing and "running in" our L.7 gear. Yours truly, For Rolls-Royce Ltd. | ||