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).
Confirming drawings for the 'Phantom' exhaust system have been sent to Springfield.
| Identifier | ExFiles\Box 66\2\ scan0091 | |
| Date | 18th September 1925 | |
| 48230 To E.{Mr Elliott - Chief Engineer} from Hs.{Lord Ernest Hives - Chair} c. to BY/Py. Hs{Lord Ernest Hives - Chair}7/LG18.9.25. 'PHANTOM' EXHAUST SYSTEM. E2/M16.9.25. Drawings of the above have been sent to Springfield. Hs.{Lord Ernest Hives - Chair} | ||