Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 138,939 pages of information and 225,312 images on early companies, their products and the people who designed and built them.
Hall and Pickles of Sheffield (works), 64 Port Street, Manchester (offices), and Trafford Park (warehouse).
1812 Company founded.
1920 January. Issued booklet on 'Hydra' tool steels 
1924 Private company.
1935 See Hall and Pickles:1935 Review
1937 Steel manufacturers. "Hydra" High Speed Steels. "Hydrex" Stainless Steels. "Vampire" Alloy Steels. "Vital" Alloy Steels 
1939 See Aircraft Industry Suppliers
1961 Steel tool and wire manufacturers and steel stock holders 
1967 One of the larger makers of high speed and tool steels not subject to nationalisation