Model EW50/H. Until the early 1950s, electrically- driven washing machines had to have pre-heated water. Later models, such as this one made by Parnall-Radiation (Yate) of Bristol, were fitted with electric heaters so that water was brought to the required temperature in the machine. The heat switch was then set to a lower temperature for the washing proces. Waste water was removed from the tub by a lever controlled electrical pump. The front switch controls the 'dolly' rotation; the left one controls the mangle.
© Science Museum / Science & Society Picture Library