11th May 1931: Stripped to the waist and wearing goggles, children sit round a lamp having sun ray treatment while they listen to the gramophone at the East End Mission in Commercial Rd, London. (Photo by Fox Photos/Getty Images)
11th May 1931: Stripped to the waist and wearing goggles, children sit round a lamp having sun ray treatment while they listen to the gramophone at the East End Mission in Commercial Rd, London. (Photo by Fox Photos/Getty Images)