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 of an engine cylinder block showing corrosion or deposits inside the bores after a rig test.
| Identifier | ExFiles\Box 150\3\ scan0368 | |
| Date | 12th September 1933 guessed | |
| RIG TEST P.350 C | ||