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 hydraulic shock damper, noting a specific side clearance.
| Identifier | ExFiles\Box 55\4\ Scan308 | |
| Date | 31th January 1929 guessed | |
| HYDRAULIC SHOCK DAMPER A SIDE CLEARANCE .005+3 | ||