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).
Blueprint of an experimental damper rig designed to cure brake thumps on a 20/25 HP model.
| Identifier | ExFiles\Box 105\4\ scan0091 | |
| Date | 23th August 1932 guessed | |
| PLATE BOLTED To REAR OF GEAR Box STAY FROM CARRIER PLATE To CLUTCH PIT EXPTL RIG UP OF DAMPER TO CURE BRAKE THUMPS. 20/25 H.P. | ||