N. Greening and Sons
of Britannia Works, Warrington; of 16 Finsbury Street, E.C.2.
1799 Company founded.
1883 Public company.
1935 See N. Greening and Sons:1935 Review
1937 Wire weavers, metal perforators, screen and wire brush manufacturers. 
1961 Manufacturers of woven wire, wedge wire screens, perforated metals, conveyor belts, wire brushes, sieves and all types of wire work. 1,200 employees.