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).
Typed communication regarding an inspection of Wraith servo components.
| Identifier | ExFiles\Box 108\1\ scan0436 | |
| Date | 28th February 1938 | |
| 600a NFM. 28.2.38. Waller, Vingt et un. Chateauroux, MAKE SURE STAR SPRINGS WRAITH SERVO ARE NOT BINDING IN WORN GROOVE IN SERVO SPINDLE. Martindale, Roycar. | ||