B&W. Verso: paper sticker: " Source D. Edwards 3. The commercial version of the 1949 prototype known as the Ferranti MK I. This picture was taken at the Ferranti factory prior to delivery of the mcahine to the University in 1951, where it provided a computing service from July of that year."
The image shows several racks with vacuum tubes, and other components. The covers have been removed.
