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).
Index card listing file references for Wraith engine characteristics, camshafts, and Humber Super Snipe data.
| Identifier | ExFiles\Box 98\5\ scan0028 | |
| Date | 2nd March 1939 guessed | |
| 404. By.{R.W. Bailey - Chief Engineer} { Rm.{William Robotham - Chief Engineer} 3/R.{Sir Henry Royce} 13.1.39 { Rm{William Robotham - Chief Engineer}/CTS.{C. Trot Salt - Carburation} 5/JH. 16.1.39 { Rm{William Robotham - Chief Engineer}/TAS.{T. Allan Swinden} 2/JH. 16.1.39 { Rm{William Robotham - Chief Engineer}/FD{Frank Dodd - Bodies} 1/JH. 16.1.39. Wraith Engine Characteristics Camshafts. Humber Super Snipe Windage Humber Super Snipe Data in file 600. | ||