Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 133,813 pages of information and 211,901 images on early companies, their products and the people who designed and built them.
of Sunic House, Parker Street, Kingsway, London, W.C.2
The X-ray department of Watson and Sons, maker of X-ray machines.
By 1922 the business had developed into a distinct company
By 1939 Watson and Sons was a subsidiary of GEC.
1958 Long-standing co-operation with the Machlett Company of the USA in X-ray tubes.
1961 X-ray apparatus manufacturers. 400 employees. 
1968 Achieved its best ever performance