This page contains a photograph which is one of several belonging to the photo gallery pages which are part of several pages relating to
the invention of the world's first automatic totalizator in 1913, a system that facilitates galloping trotting and greyhound racing betting.
Adders and switch board for win place and forecast, White City London 1933.
Click on the image to go back to the Photo Gallery
If you wish to start from the beginning then go to the index