Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 126,177 pages of information and 197,776 images on early companies, their products and the people who designed and built them.
Speedwell Gear Case Co of Tame Road, Witton, Birmingham.
1897 Company founded.
1936 Public company.
1937 Sheet-metal workers. 
1961 Sheet metal engineers, manufacturing cycle and motor cycle accessories and sheet metal goods, for motor, aeronautical, electrical and engineering trades. 400 employees.