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).
Expressing dislike for electric horns due to battery drain and inharmonic sound.
| Identifier | ExFiles\Box 59\3\ Scan001 | |
| Date | 9th September 1910 | |
| Design x 1069 9th September 1910 C.J. 9/9/10 CJ2/D9910 Re Horns. I do not like an electric horn, it runs the batteries down so and also it does not make a harmonic sound. An electric horn might be used when an electric installation has been put on the car. F.H.R. [Watermark: KINSON BOND MADE AT CHORLEY] [Footer: R.R. 235A (100H)(P) 355. 18.8.10) E.P. 7252.] | ||