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).
Stating the mileage of vehicle GAE.20 since an engine change.
| Identifier | ExFiles\Box 101\3\ scan0097 | |
| Date | 20th December 1937 | |
| W/S. To Asy.{Len Astley - Orders} from Rm.{William Robotham - Chief Engineer} 500? Rm.{William Robotham - Chief Engineer}8/AP.20.12.37. Replying to Asy.{Len Astley - Orders}18/NP.15.12.37, the mileage of GAE.20 since the engine was changed in 1936 is 20,913. Rm.{William Robotham - Chief Engineer} | ||