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 showing a cross-section and front view of a flywheel damper with a corrugated plate.
| Identifier | ExFiles\Box 14\2\ Scan079 | |
| Date | 3rd January 1930 guessed | |
| FLYWHEEL DAMPER WITH CORRUGATED PLATE. A B C d E f G H M N O P Q R S t | ||