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).
The steering for the Wraith and B.V. models.
| Identifier | ExFiles\Box 9\7\ 07-page190 | |
| Date | 26th May 1939 | |
| 650 By.{R.W. Bailey - Chief Engineer} Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}Y/R.26.5.39 Wraith & B.V. etc. Steering file 1300. | ||