Baird Model B Televisor, 1928. These were also known as the 'Dual Exhibition' receiver, or the 'Noah's Ark' receiver.
In 1929 John Logie Baird (1888-1946) began a programme of regular television broadcasts which were to continue for the next six years. He did this so that he could sell television sets, which he called ‘Televisors’. The Model B Televisor was constructed in London at the Baird premises at 133 Long Acre. A very small number were made originally, 'perhaps only a dozen', according to the memoirs of TH Bridgewater, an engineer who worked for the Baird Company at this time. Nonetheless, they represent the first mass-produced television sets.