of Cambridge Street Works, Birmingham
formerly R. W. Winfield, later R. W. Winfield and Son and R. W. Winfield and Co
1897 On the closing of the old Birmingham business of R. W. Winfield it was purchased by Dugard and Mitchell, and William Henry Dugard and others formed Winfield's Rolling Mills
1935 The company left Cambridge Street and moved to Icknield Port Mills previously used by H. H. Vivian and Co