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).
On clutch oiling, detailing an issue of oil loss and the results of a fix.
| Identifier | ExFiles\Box 20\1\ Scan001 | |
| Date | 2nd June 1906 guessed | |
| Clutch oiling X872 1200 Stonepete lost all the oil Tight worsted, with 1/8 valve. good fitting valve. - no oil lost thro. spigot. | ||