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).
Diagram of a test rig for a hydraulic damper.
| Identifier | ExFiles\Box 101\2\ scan0174 | |
| Date | 14th November 1936 guessed | |
| lbs D'', SCALES, Oil Gun, DAMPER | ||