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).
Note on improving the steady riding of the 20 HP car fitted with balloon tyres.
| Identifier | ExFiles\Box 181\M7\ img047 | |
| Date | 1st May 1923 guessed | |
| contd :- -2- we have lately proved on the 20 HP. which asked for still more effective ones for the steady riding of the car with balloon tyres.) R.{Sir Henry Royce} | ||