Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,982 pages of information and 229,205 images on early companies, their products and the people who designed and built them.
of Royds Works, Sheffield, Steel and File Manufacturers
1713 Business established
1908 Incorporated as a Limited Company
1914 Iron and steel manufacturers. Specialities: bright steel bars, high-speed tool steel, high-class crucible cast steel, motor car steel, blue reeled Bessemer steel, high-speed files and drills. 
1922 Specialities: Bright steel bars, high-speed tool steel, high-class crucible steel, motor-car steel, case-hardening steel and blue-reeled Bessemer steel
1937 Steel manufacturers. "Hardenite" and "Helve" Steel Products. "Monarch" Steel Products.