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).
Note regarding experiments on rear Houdaille shock absorbers.
| Identifier | ExFiles\Box 25\2\ Scan021 | |
| Date | 26th May 1914 guessed | |
| X1152 Experiments added to 58 Ya. extract from Orm 19696/2514 in x1100 (Rear) Houdaille Shock Absorbers. | ||