"Heliosphere" mobile x-ray machine by Siemens-Reiniger-Werke, Berlin, c.1935 "Heliosphere" mobile x-ray machine by Siemens-Reiniger-Werke
"Maximar" x-ray set for deep therapy, comprises combined power supply and x-ray tube ( oil-cooled) on gantry stand, couch and control panel, by General Electric X-Ray Corporation, Chicago, USA, 1930s(?) "Maximar" x-ray set for deep therapy
X-ray set for superficial therapy, water-cooled, comprises tube, stand, control panel and power supply, by Victor X-Ray Corporation, English and American, 1930s(?) X-ray set for superficial therapy