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).
Performance of 'Delco' horns versus 'Lucas' horns in snow and rain.
| Identifier | ExFiles\Box 92\3\ scan0198 | |
| Date | 6th April 1937 | |
| RM{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}/IMW.{Ivan M. Waller - Head of Chateauroux} from Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} 300a? Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}7/R.6.4.37. See Daily Report WIND TONE HORNS. With regard to your memo stating the 'Delco' horns are no more satisfactory than 'Lucas' in snow, we hope you will keep them on the car, and report in due course as to their behaviour in rain. Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} | ||