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).
Telegram regarding the examination of steering levers, advising against strengthening them until a weakness test is confirmed.
| Identifier | ExFiles\Box 46\2\ Scan084 | |
| Date | 4th April 1922 | |
| Rokear Derby. Angleture Have examined steering levers almost certain Haldenby mistaken Spheres Naturally inclined inwards Do not strengthen levers until Weakness confirmed Test on rig for Weakest | ||