Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,647 pages of information and 247,064 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
of Headingley, Leeds
1920s/30s Guy Leslie Murray devised a system for controlling the use of limit gauges by means of colours and combinations of colours.
1935 Description of the system and the production of the gauges[1]
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