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).
Fitting of split type pistons to the 1.EX car and its scheduled journey.
| Identifier | ExFiles\Box 77\3\ scan0036 | |
| Date | 1st December 1919 | |
| X.3732. Extract from EH4/LG1.12.19. RE 1.EX CAR. X.2565. X.3732. We are fitting on to 1.EX, a set of thessplit type pistons. This car will leave here on Wednesday morning. It will be at West WitteringHenry Royce's home town early on Thursday morning. EH. | ||