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).
List of continued chassis modifications for the exhaust system, silencer, and dynamo.
| Identifier | ExFiles\Box 5a\4\ 04-page027 | |
| Date | 13th March 1934 guessed | |
| CHASSIS - continued:- (22) Flexible mounting of exhaust system to delete sliding joint and cure exhaust booms. (23) Modifications to silencer to cure 'rattles' and 'crackles'. (24) Voltage controlled dynamo. | ||