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).
Photograph showing an engine test rig with a large control panel in a workshop environment.
| Identifier | ExFiles\Box 178\4\ img084 | |
| Date | 1st May 1932 guessed | |
| 1796/42 A | ||