A photographic print taken from an X-ray photographic negative, made by unknown photographer about 1920. Originally x-ray negative taken in Sir William Crookes' laboratory on 20th January 1896. One of two x-ray glass negatives taken at the time. Photographic Print From Crookes X-Ray Photographic Negative circa 1920
16mm cineradiography set, Dr. R J Reynold's design, comprises grid-enclosed power-supply, tube stand, x-ray tube, rectifier, screening stand, patient stand, camera unit, control unit and accessories by Watson and Sons (Electro-Medical) Ltd, London, 1935 Reynolds' cineradiography apparatus 1935