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).
Clarifying that an exhaust tail pipe adapter is not required for the Big Bore 25 HP car.
| Identifier | ExFiles\Box 104\2\ scan0170 | |
| Date | 3rd February 1936 | |
| x523 To By.{R.W. Bailey - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Wym.{G. Harold Whyman - Experimental Manager}10/JH.3.2.36. 25/30 H.P. Exhaust System. Will you please note that on the Big Bore 25 H.P. car the exhaust tail pipe adapter to LEC.4756 will not be required. Hs{Lord Ernest Hives - Chair}/Wym.{G. Harold Whyman - Experimental Manager} | ||