Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,110 pages of information and 233,634 images on early companies, their products and the people who designed and built them.
of London Wall Buildings
1872 John Grant Birch started the business as an engineer and iron merchant in Liverpool. Held numerous agencies, moving on to an export business and represented foreign engineers.
1888 Issued large catalogue of Railroads and rolling stock. Possibly an agent. 
1890 The main business was moved to London. The work included a long series of major contracts concerning railway and marine engineering.
1891 Released a catalogue of their galvanised, corrugated and flat sheet iron.