AGA 780 Thermovision system, made in Sweden, used by Professor Raymond Clark in physiological research and for clinical applications in the treatment of rheumatology conditions, used at the Medical Research Council’s clinical research institute at Northwick Park between the 1970s and 1990s. System consists of AGA 780 Thermovision camera, AGA Pericolor computer system (64k memory) and control box, Oscar digital image convertor, AGA Thermovision colour monitor 702, and a broadcast quality 24 inch colour monitor, instruction manuals for camera and Oscar recorder.