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 implementation of Wind Tone Horns for the 20/25 and Bentley models.
| Identifier | ExFiles\Box 82\4\ scan0172 | |
| Date | 8th October 1935 | |
| S/W. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. to Sg.{Arthur F. Sidgreaves - MD} c. " Wor.{Arthur Wormald - General Works Manager} c. " C. c. " E.{Mr Elliott - Chief Engineer} c. " BY.{R.W. Bailey - Chief Engineer} c. " Da.{Bernard Day - Chassis Design} c. " Ev.{Ivan Evernden - coachwork} c. " Hn.{F. C. Honeyman - Retail orders} x200 Rm{William Robotham - Chief Engineer} Cx{Major Len W. Cox - Advertising Manager}19/KW8.10.35. Wind Tone Horns - 20/25 and Bentley. Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}12/KW7.10.35. In Sg{Arthur F. Sidgreaves - MD}'s absence in Paris I am replying to your memo. You are under a misapprehension in including Bentley so soon as being equipped with these new horns. We are certainly trying to get them on the Bentley soon, but are awaiting the design of a suitable bracket by the Works. Therefore, they will not be on the Bentley cars at Olympia. It is a fact, however, that we want them on the 20/25's, in fact we have gone so far as to include in new illustrations in our 20/25 catalogue which is now being re-printed showing these horns on all cars. Surely if this kind of horn has already been accepted as the standard for the P.III it will at least be as satisfactory on the 20/25 as we expect it to be on the P.III, in fact owing to the performance of the 20/25 being considerably below that of the Phantom III presumably it should stand up even better. Cx.{Major Len W. Cox - Advertising Manager} | ||