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).
Requesting the fitting of twin exhaust systems to specific Bentley cars.
| Identifier | ExFiles\Box 99\1\ scan0186 | |
| Date | 7th October 1939 | |
| 423 To HPS.{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}1/JH.7.10.39. Bentley Exhaust Systems. Will you please arrange to fit to 11.B.V. and 3.B.50. cars, twin exhaust systems similar to the one recently fitted to 33.G.VII. The expansion boxes are already in stock and will be supplied by Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} | ||