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).
Drawing of the experimental S.S. engine feet.
| Identifier | WestWitteringFiles\T\2January1929-June1929\ Scan005 | |
| Date | 8th January 1929 guessed | |
| S.S. Exp. Engine Feet | ||