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 a broken component with handwritten notes detailing its failure mileage.
| Identifier | ExFiles\Box 84\3\ scan0275 | |
| Date | 29th May 1935 guessed | |
| X-201 Broken after 35,121 miles on official 10,000 miles tests. 20,000 miles in France. | ||