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).
The approval and design specifications for a horn, comparing it to the one on the Continental Phantom II.
| Identifier | ExFiles\Box 3\6\ 06-page011 | |
| Date | 22th August 1933 | |
| - 2 - continued:- EV{Ivan Evernden - coachwork}1/IH.22.8.33. (3) HORNS. The horn with the grill in front to match the grill of the radiator was approved, but it was considered that it should have a short metal domed back similar to that fitted to the horn used on the Continental Phantom II. It appeared to us that this identical domed back would go on to the horn in question, and, therefore, there should be no difficulty in Messrs. Lucas supplying same. Ev.{Ivan Evernden - coachwork} | ||