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).
Advertisement for the 'Graham' Electrical Autohorn, a special model for motor car manufacturers.
| Identifier | ExFiles\Box 49\5\ Scan104 | |
| Date | 14th March 1921 guessed | |
| A.D. 11 THE “GRAHAM” ELECTRICAL AUTOHORN SPECIAL MODEL for Motor Car Manufacturers Embodying the advantageous features of the original Autohorn, a special model, for sale only to Motor Car Manufacturers, has been designed. ¶ To-day, an Electric Horn is regarded as part and parcel of Car Equipment, and the Manufacturer, although desirous of including the best warning signal available, is faced with the eternal question of cost. ¶ By adopting an all-black finish, and fitting a plain sound-amplifying trumpet of conical form, it is possible to produce, upon a quantity basis, this special type of the genuine “Graham” Autohorn at a comparatively low price. | ||