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).
Fitting of an electro buzzer versus a low note bulb horn for aesthetic and practical reasons.
| Identifier | ExFiles\Box 49\5\ Scan132 | |
| Date | 14th March 1929 | |
| -SG {Arthur F. Sidgreaves - MD} - FROM R. {Sir Henry Royce} Dry(BV.) (At Le CanadelHenry Royce's French residence.) C. to MGR. BY. {R.W. Bailey - Chief Engineer} C. BY. {R.W. Bailey - Chief Engineer} HS {Lord Ernest Hives - Chair} , USA. ELECTRO BUZZERS. X 4278 R2/M11.3.29. REC'D AT WW. 14.3.29. X 4278 Mr. Olley sends us a photograph of the above fixed on the engine. Naturally this seems to help spoil the appearance of the engine. Could it not be fixed on the dashboard if it were insulated mechanically by rubber base and bushes if the vibrations reach the body. The trumpet looks unnecessarily long. So far I think we should continue to fit the low note bulb horn. Personally this is much more polite and less annoying where it serves the purpose. R. {Sir Henry Royce} S Barton Horn | ||