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).
Diagrams of two different leaf spring assemblies.
| Identifier | ExFiles\Box 154\1\ scan0074 | |
| Date | 18th July 1933 guessed | |
| 3 4 | ||