Collection consisting of the following documents relating to the Philips EM75 and EM100 electron microscopes; operating manuals, parts manuals, instruction sheets, information booklets and circuit drawings.

The collection also contains a series of black and white photographic prints of the Metropolitan-Vickers Electrical Co Ltd EM/2 electron microscope and an electron diffraction camera along with a small number of sample prints of various materials viewed by the microscope and photographs taken at various electronics exhibitions.