Pair of Lucas Mellotone electric horns, with dual control switch and relay, on wood base. Made by Joseph Lucas Ltd., 1935 Pair of Lucas Mellotone electric horns 1935
Interior mechanism for Apollo electric horn No.2, by the Apollo Plug Manufacturing Co. Ltd., 1920 Electric horn mechanism 1920
Eural combined horn operator and traffic indicator for motor cars mounted on showboard Demonstration motor car steering wheel, horn and indicators