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Scottish Iron and Steel Co Ltd. of 105 St. Vincent Street, Glasgow; of 53 Bothwell Street, Glasgow.
WWI During the First World War the Scottish Iron and Steel Co, supported by the Ministry of Munitions, set out to build its own steelworks. Construction started in 1916 but production did not begin until after the war.
1914 Iron and steel manufacturers. Specialities: iron and steel bars, angles, tees, hoops, strips etc. Employees 4,000 to 5,000. 
1938 William Baird and Co Ltd was reconstituted; the company’s Lanarkshire interests were merged with the Scottish Iron and Steel Co Ltd of Glasgow to form Bairds and Scottish Steel Ltd, pig iron and steel manufacturers.
1963 It was no longer viable and the new owners closed it in 1967.