Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,368 pages of information and 233,846 images on early companies, their products and the people who designed and built them.
of St. Thomas' Works, Granville Street, Birmingham.
Also known as C. Winn and Co and Winn and Co
1859 Company founded.
Gun-metal steam stop valves
1919 Advert for screwing machines. 
1961 Manufacturers of valves and allied fittings for steam, equipment for fire engines and water tenders, industrial and domestic sanitary fittings and screwing machines for tubes and bolts. 230 employees. 
1974 Mr. C. D. Southall became works director.