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Credit
The law regulating streets and buildings in the metropolis under the London Building Act, 1894, and other metropolitan statutes : together with the standing orders, regulations, bye-laws, forms, &c. of the London County Council and of the Commissioners of Sewers of the City of London / by R. Cunningham Glen and Arthur A. Bethune ; with explanatory diagrams by Alfred Conder. Public Domain Mark. Source: Wellcome Collection.