Early Marconi 702 television set, c 1930s.
© National Media Museum / Science & Society Picture Library
The Marconi 702 was a vision-only, mirror lid television. When switched on, the image on the horizontal 12 inch screen was reflected onto, and viewed via, the mirror on the lid of the case. This early television set used magnetic deflection and electrostatic focusing. It originally went on sale in 1936 for 60 guineas. Guglielmo Marconi (1874-1937), after whom the television was named, was an Italian physicist and pioneer of wireles telegraphy, who won the Nobel Prize for Physics in 1909.